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HomeMy WebLinkAboutRailbelt Intertie Reconnaissance Study Vol. 8A Northeast Transmission Intertie Project 1989 RAILBELT INTERTIE RECONNAISSANCE STUDY Volume 8A Northeast Transmission Intertie Project Power Engineers Inc. Hart-Crowser Inc. |\___. Alaska Power Authority June 1989 RAILBELT INTERTIE RECONNAISSANCE STUDY VOLUME 8A NORTHEAST TRANSMISSION INTERTIE PROJECT Prepared for Alaska Power Authority Anchorage, Alaska Prepared by Power Engineers Incorporated Hart-Crowser Incorporated June 1989 SECTION IV Vi Vil QLUG 1361 (08/31/89) TABLE OF CONTENTS INTRODUCTION PROJECT EXECUTIVE SUMMARY SUMMARY AND CONCLUSIONS STUDIES Introduction System One-Line Diagram Southeast Route - Figure 5 Northwest Route - Figure 6 Study Assumptions Conclusions Recommendations Discussion of Results Load Flow Study Load Flow Runs Transient Stability Study Transient Stability Runs ROUTE SELECTION ALTERNATIVES Route Descriptions Southeast Route Northwest Route SUGGESTED ROUTE Suggested Route Description Discussion of Suggested Route Selection Cost Summary Route Maps SECTION Vill IX Xl 9LUG 1361 (08/31/89) TABLE OF CONTENTS ENVIRONMENTAL EVALUATION - ALTERNATE ROUTES Description of Environmental Factors Discussion of Environmental Factors Water Quality Floodplains Land Cover Wetlands Fish and Wildlife Threatened and Endangered Species Archeological and Historic Sites Land Use Aesthetics Social Impacts Construction Operation ENVIRONMENTAL EVALUATION - SUGGESTED ROUTE Discussion of Environmental Factors - Suggested Route Water Quality Floodplains Land Cover Wetlands Fish and Wildlife Threatened and Endangered Species Archeological and Historic Sites Land Use Aesthetics Social Impacts Geological Conditions and Geological Hazards Construction Operation LAND OWNERSHIP PERMITS SECTION XIl XIll XIV XV QLUG 1361 (08/31/89) TABLE OF CONTENTS PROJECT COSTS - ALTERNATE ROUTES Project Cost Summary Substations: Southeast Route - Design Requirements and Cost Estimates Northwest Route - Design Requirements and Cost Estimates Transmission Line Design Requirements and Cost Estimates Southeast Route Northwest Route Wood Pole Route Southeast Route Cost Estimate Details Northwest Route Cost Estimate Details SCHEDULE TABLES Table 1-17 Load Flow Data Table 18 Construction Windows Table 19 Known Cultural Resource Sites Table 20 Land Ownership Preferred Route Alternative EXHIBITS Exhibit | Trumpeter Swan Survey Exhibit II Cultural Resource References Exhibit Ill References ExhibitIV Agency Letters ExhibitV | Wood Pole Route: North Pole to Carney Routing APPENDIX | - PUBLIC COMMENTS APPENDIX II - TECHNICAL STUDIES RAILBELT INTERTIE RECONNAISSANCE STUDY VOLUME NUMBER 1 10 Ld LIST OF VOLUMES VOLUME TITLE Economic and Demographic Projections for the Alaska Railbelt: 1988-2010 Forecast of Electricity Demand in the Alaska Railbelt Region: 1988-2010 Analysis of Electrical End Use Efficiency Programs for the Alaskan Railbelt Fuel Price Outlooks: Crude Oil, Natural Gas, and Fuel Oil Anchorage-Kenai Transmission Intertie Project Anchorage-Fairbanks Transmission Intertie Expansion and Upgrade Project Railbelt Stability Study Northeast Transmission Intertie Project Estimated Costs and Environmental Impacts of Coal-Fired Power Plants in the Alaska Railbelt Region Estimated Costs and Environmental Impacts of a Natural Gas Pipeline System Linking Fairbanks with the Cook Inlet Area Benefit/Cost Analysis I. INTRODUCTION POWER Engineers, incorporated |. INTRODUCTION A single circuit electrical intertie was completed in 1985, interconnecting the Railbelt Utilities in the Anchorage area and the utilities in the Fairbanks area. The intertie is limited to 70 MW’s of transfer capability with south to north transfers and a single contingency limitation. The Alaska Power Authority (APA) and the Railbelt Utilities have been interested in and have considered, as a part of the intertie, paralleling the existing 345kV-constructed/138kV-operated intertie to improve the reliability and transfer capability. This report presents the results of a preliminary design, cost estimate and associated engineering, route selection, and permitting studies for a Northeast Transmission Line Intertie (N. E. Intertie) between Anchorage and Fairbanks. The proposed line route for the N. E. Intertie passes through the Glennallen area, interconnecting the Copper Valley system in the Railbelt interconnected system. Of the transmission line route alternatives set forth in this report, one route has been identified as a Suggested Route based upon results of electrical studies, environmental and permitting requirements, and cost estimates. Based on public comment, several recommended changes to the suggested route have been identified to mitigate impacts created by the suggested route location. This report includes the information and assumptions that were used in making the recommendation. The Northeast Transmission Intertie Project report has been prepared by Power Engineers, Inc., of Hailey, Idaho, and Hart-Crowser, Inc., of Anchorage, Alaska, to satisfy the requirements of APA Contract No. 2800113. 9LUG 1361 (08/31/89) I-1 ll. PROJECT POWER Engineers, Incorporated ll. PROJECT Alaska Power Authority (APA) desires to determine the basic information for constructing a Northeast Intertie, which would parallel the existing intertie between the Anchorage and Fairbanks area utilities. To evaluate the Northeast Intertie, preliminary design, cost estimate and associated engineering, route selection, and permitting studies for the various sections of line and stations comprising the proposed intertie have been performed as requested by APA. System studies using load flow and transient stability analysis have been conducted and analyzed to determine design requirements and operating performance of the new line and its incorporation with the present intertie. Reactive compensation requirements for the transmission line are determined and locations identified for their installation. Alternate transmission line routes are defined with a route suggested to APA for more detailed study. A portion of the route will consist of existing transmission line facilities and the balance will be new facilities. The general route of the line is from Teeland Substation to the O'Neill Substation; to a new switching station at Gakona Jct.; to Jarvis Substation; to Carney Substation; and to the North Pole Substation. The line section from Teeland Substation to O'Neill Substation will consist of the existing 115kV line with a new switchyard at O'Neill Tap. A new 230kV line will be designed and routed from O'Neill Substation to Jarvis Creek Substation via Glennallen (operation voltage will be 138kV). A new 138kV line is proposed between Carney Substation and North Pole Substation. A new substation will be required at Gakona and modifications will be required to the O'Neill Pumping Station No. 11, Jarvis Creek, Carney and North Pole Substations. The system will operate at 115kV from Teeland to O'Neill Substation. At O'Neill Substation, the voltage is transformed to 138kV and the remainder of the Anchorage-Fairbanks transmission system operates at 138kV. The existing Anchorage-Fairbanks Intertie and the Northeast Intertie are connected at North Pole Substation. 9LUG 1361 (08/3189) \l-1 The Maps on the following pages (Figures 1, 2, 3 and 4) show the Suggested Route for the Northeast Intertie. 9LUG 1361 (08/31/89) Il-2 IAS ES é NS aN Bes . aS A NL E- MS) Tae i NJ AEY AROIS & Lf a i XG “i Eo ea eee pra SR hee uy safes Joc , =o Aen ws a PX. FZ innadl RS =F O'Neill Substatio a 1, Sm . ai . eh 9. VRBO LOCATION INDEX LOCATION INDEX . Gakona _ | {aaa PRESERVE BOUNDARY > a ee = 3 s if “Blue . 2 -Lake,. ee i > . Pe : Te OO Lent Naver igh| || > < Sage Ue Rkongs as = Fe 3 é ae Bi nf uN Nlekens i Nisland sey ~~ = = a = Te 4 ‘ ~~ o o seek 2, 7 Caribou Lakes> » ah me > Frenchman Lake % ae re Rat LakeD & € - “es ‘ ° s a os Sate Sheoara . i ire Spring) GLENN 821 ie : “Tglsona es oo ap nome 800087 7 Vox / = 05 ~\ Slide Mountain ~ 4 Planarinw ~ cere Horny iy Northeast Intertie MN Suggested Route Figure 2 : 7 ke) wane Sri ji { o r. ns aor 4 f a 3224 * : 4 4. Erbe yak Cy . . ‘| 00, Aa a v 1 Crystal | oy Laken ke 538 ‘i h Lake \-- “Df. Enel p . wy A co Paxsdt 1% = ’ Coane ‘5 : : ‘ NaS mw | ° ce 00 __) af y {a 3 ig ° al * Spe ~ % /) « nouypary om ~ ides LOCATION INDEX Northeast Intertie Suggested Route Figure 3 ° ex el |S ; * ! 7 ia == a Ne Creek | rae So 3 i Vata chy Northeast Intertie Suggested Route Figure 4 ll. EXECUTIVE SUMMARY POWER Engineers, Incorporated Ill. EXECUTIVE SUMMARY This report presents the results of a preliminary design, cost estimate, and environmental impact study of a proposed new electrical transmission line intertie between Anchorage and Fairbanks, via Glennallen, and tying the Copper Valley Electric Association into the “Railbelt” interconnected transmission system. Transmission system studies consisted of a review of existing studies, meetings with all area utilities to determine operating problems, operating practices and other information necessary to evaluate the “Railbelt” interconnected transmission system. Transmission system analysis studies were conducted using load projections to the year 2008. To determine facilities requirements, the electrical system studies demonstrate that the proposed N.E. Intertie can transfer 1SOMW from O'Neill Tap to Anchorage to the Copper Valley System and Fairbanks. Two transmission line route alternatives are identified, a Northwest Route and a Southeast Route. Both of these routes roughly parallel the Glenn Highway between the Matanuska Valley and Glennallen and the Richardson Highway between Glennallen and Delta Junction. A Suggested Route is selected for more detailed study. The criteria for selecting the Suggested Route is feasibility to obtain the right-of-way; the route does not have any environmental concerns which would prevent construction; permitting is feasible within a reasonable schedule; and the cost of construction is competitive with other routes. The Suggested Route is a combination of the Northwest Route and Southeast Route which roughly follow the Glenn and Richardson Highways. The advantages of the Northeast Intertie are improved reliability of service to Fairbanks and the Copper Valley system, greater power transfer capability to Fairbanks, improved transient stability of the entire “Railbelt” interconnected transmission system, greater capacity to serve load for the Copper Valley System, and full utilization of the Solomon Gulch Hydro Facility. Disadvantages of the Northeast Intertie are large power and var flows in the Matanuska Electric Association (MEA) system resulting in greater MEA system losses and the possibility of outages in the MEA system caused by power swings during major system disturbances. 9LUG 1361 (08/31/89) il-1 The cost estimate in 1989 dollars for the Suggested Route which includes 273 miles of 230kV transmission line operated at 138kV, 22 miles of 138kV transmission line, six substations (two new and four upgraded), and environmental and right-of-way costs is $156,190,399. The project schedule is estimated to be sixty (60) months from Notice to Proceed. 9LUG 1361 (08/3189) Il-2 IV. SUMMARY & CONCLUSIONS POWER Engineers, Incorporated IV. SUMMARY AND CONCLUSIONS The Northeast Intertie suggested routing basically follows the Glenn Highway East from O’Neill Substation near Sutton to Glennallen and then turns north and follows the Richardson Highway to Jarvis Creek Substation at Delta Junction. This portion of the Northeast Intertie is 273 miles constructed 230kV with double bundled ACSR conductor on steel towers. The 230kV line section between Glennallen and Gakona Junction Substation (approximately 12 miles) is double circuit. The second circuit is a 138kV line from Gakona Substation to Copper Valley’s existing Pump Station 11 substation, tying into Copper Valley’s 138kV transmission system. The Northeast Intertie connection to Fairbanks is completed with a 138kV tie between Carney Substation and North Pole Substation. This section of line is 22 miles and constructed with 795 ACSR conductor on wood poles. The main considerations for the choice of the Suggested Route between O'Neill Substation and Jarvis Creek Substation were availability of right-of-way, aesthetics, environmental concerns and impacts, permitting, and cost of construction. For the Suggested Route, the right-of-way is considered to be feasible to obtain. There are no identified environmental concerns which would prevent construction or identified impacts which cannot be mitigated. Identified issues of significant concern to local area residents included aesthetics, health hazards of electrical fields and the need to obtain private property for the right of way. Alterations in the route to mitigate these concerns have been identified. Permitting is considered to be feasible within a reasonable schedule, and cost of construction is competitive with alternate routes considered. Two new substations are required and upgrades of four existing substations are required. In the MEA system, a new switching station is required at O'Neill Tap to provide protection and sectionalizing of the 115kV transmission system which connects the O'Neill Substation end of the Northeast Intertie to Teeland Substation. At O'Neill Substation, a step-up transformer from 115kV to 138kV and associated line protection equipment is required. North of Glennallen, a new substation is planned at Gakona Junction. This substation will provide a connection to Copper Valley's 138kV transmission system at Pump Station 11 and provide distribution to 9LUG 1361 (08/31/89) IV-1 Copper Valley’s loads in the Gakona area. At Jarvis Creek, Carney and North Pole substations, additional line protection equipment is required. Electrical system studies of the proposed Northeast Intertie show that the intertie system, when operating at 138kV, can deliver 150 MW from O’Neill Tap to the Northeast Intertie. A static var system (SVS) of + 100 - 30 Mvar is required at Gakona Substation to provide voltage stability on the intertie. Fixed reactors are required at Gakona and Jarvis Creek substations for voltage control and line reactive compensation. Line outage studies show that a single line outage condition on the intertie or feeds to the intertie greatly decreases the intertie transfer capability. To prevent major system disturbances due to line outages, capacity upgrades are required on the existing Anchorage-Fairbanks Intertie and the transmission system from Teeland Substation to Point McKenzie Substation. Transient stability studies show that the Northeast Intertie improves stability of the Railbelt interconnected transmission system for faults on the Anchorage-Fairbanks intertie. When transfers are maintained within the 70 MW limit of the existing intertie, the transmission system remained stable for line faults conditions on the intertie. This improved stability will improve the reliability of electrical service to both Fairbanks and Anchorage. The Northeast Intertie will also improve the stability of the Copper Valley system. Loss of the Solomon Gulch Hydro facility will have virtually no impact on the transmission system or the ability of Copper Valley to serve load. Service reliability of the Copper Valley system will be improved with the Northeast Intertie, and the interconnection will also allow sale of approximately fourteen million KWH of energy now being spilled annually at Solomon Gulch. The MEA system will be impacted by the Northeast Intertie connection to O'Neill Substation. Both MW and Mvar flows thru the MEA system will increase losses in the system. Power swings during system disturbances on the intertie may cause outages in the MEA system. Reinforcement of the transmission system feeding Teeland Substation and upgrading the existing Anchorage Fairbanks Intertie to 150 MW transfer capability will decrease the impact of the Northeast Intertie on the MEA system. Further load flow and stability studies are required to define additional facility requirements. 9LUG 1361 (08/31'89) IV-2 The project schedule for the Northeast Intertie, from initiation to completion, is estimated to be sixty (60) months. This schedule period includes all aspects of the project. Actual construction schedules will be impacted by construction windows dictated by environmental concerns, which will be addressed and defined in the initial stages of the project. Construction costs for the project, which includes permitting, right-of-way acquisition, engineering, construction and construction management is $156,190,399. 9LUG 1361 (08/31/89) IV-3 V. STUDIES POWER Engineers, Incorporated V. STUDIES Introduction This report documents the electric transmission system analysis study of the proposed Northeast (N.E.) Intertie transmission system between Anchorage and Fairbanks. This study was conducted to determine the impact of the N.E. Intertie on the existing utilities, defining both advantages and disadvantages of such an intertie. The proposed N.E. Intertie connects MEA’s O'Neill Substation to GVEA’s Jarvis Creek Substation via CVEA’s Pump Station (PS) 11 Substation, located near Glennallen. This portion of the N.E. Intertie is to be constructed to 230kV and initially operated at 138kV. A second line between GVEA's Carney and North Pole Substations completes the N.E. Intertie. This portion of the N.E. Intertie is to be 138kV construction, operated at 138kV. Single-line diagrams of the two N.E. Intertie Transmission System Configuration Alternatives are shown in Figures 5 and 6. A minor change in the configuration of the N.E. Intertie was made (as requested at the preliminary review meeting with the utilities) from the configuration used for the studies. The static var system (SVS) is now being installed at Gakona rather than Pump Station 11 (PS11) with the reactor which was originally installed at the Gakona Substation moved to the Glennallen Switch Station. Several sensitivity cases were run which showed the new configuration (as shown on the one-line diagrams) does not make significant change in the system operation. The write up of the studies reflect this change while the cases run are based on the original configuration. The conclusions and recommendations of this study are based upon POWER’s findings which were drawn from a review of prior transmission system studies, system operating data, projected system loading, projected generation schedules, load flow studies and transient stability studies. Specific results of the load flow and transient stability studies are presented in the Appendix II as one-line load flow diagrams and transient stability plots. QLUG 1361 (08/31/89) V-1 No other Railbelt system upgrades other than CEA’s upgrades on the Kenai and the addition of the Bradley Lake Project have been included in this study. 9LUG 1361 (08/31/89) V-2 po EXISTING p--—-- 136KV, 12 MI. FT. WAINWRIGHT (EXISTING) 138-24. 9KV ' 12/16/20 MVA ss 24_9kV DISTR ane CARNEY SUBSTATION GVE 5 MVAR 138KV, 20 MI (NOTE 1) FT EXISTING L ~exIsTING Ee : ' ' = ' EXISTING ' 3 PUMP STA. #11 SUBSTATION 115-138KV | 13524: 9Kv fs CVE 100/133/167 MVA ‘S MVA x « | C Fl I} 2 wv ost 2 ' | mee z]e ' L ~EXISTING ! a 115KV z Wore 2 a 1 P= 1 | Pi | ' i] ' Low eel . 3 {ExIs GAKONA SUBSTATION CVE 13.2-138KV 13. 2-69kV 13.2-138KV 2] Lee ee eee oe ee ee oe oe ee oe a lenis wa pee wa 5 6760/75 wa aly 2 I ] # # en sl i 408 [EXISTING ' SS = ! | 198-24.9K 0 Spy l 5 12/16/20 MVA | SS 1 3 ~—T}— a > in FT. GREELY I 1 L ~exrstine a 1 I 1 ~~ 1 NORTH POLE SUBSTATION > 24.9KV GVE CG -~ + _ 138KV 1 ! 1 nore 3) 1 ' | | a JARVIS CREEK SUBSTATION a, GVE | z|2 ! f=5 —- 4 pus 2 -—— - - —- —— — — | - _| i i - 2 -- ie-cinv Br 2736/20 wa, Sov M & T_ BUS 1SMVAR, ' ! —i— 24.9Kv 1 EXISTING 138-69xv EXISTING 4 I &y L~ ,— 1 4 60/80/10 MvA ‘ Ls ae el ! 1 TRANSFER BUS ' ! ' 1 1 I | 138KV | 1 (ore 3) | 1 1 =1 ain 1 IL 1 MAIN BUS 1 138KV. 22 MI__ (NEW) 53 MI. (EXISTING) 1 ol 7 7 795 aCSR ‘356 ACSR i] “] ' ! H15KV_16 MI TING) Te Teg Si | Yeeving 308. Ta T yr O'NEILL SUBSTATION 138KV GLENNALLEN SUBSTATION (EXISTING) MEA (Nore 2} 1 CVE 1 O'NEILL TAP SUBSTATION o | MEA Eu 1 1 i sana ; A1SKV, 54 MI l ae es J astinei 138KV, 110 MI FIGURE 5 VALDEZ 1 1 2 3 4 1 5 1 6 1. NEW TRANSMISSION LINE BUI! (2-BUNDLE CONDUCTOR 954 AC 2. NEW SUBSTATION BUS BUILT TO 3. NEW SUBSTATION Bi TWO WINDING 3-PHASE WITH GROUND BLADES 3-PHASE LEGEND. -——- FUTURE EXPANSION —+— ___ COMMON CONNECTION ——| GROUND CONNECTION 1 POWER CIRCUIT BREAKER ae POWER XFMA, 3—— —_ANTOTRANSFORMER x = i 2 DISCONNECT SWITCH, —"— DISCONNECT SWITCH, TT REACTOR STATIC VAR SYSTEM NOTES |_ — | ORIGINAL ISSUE | ZONE REFERENCE DRAWINGS REVISIONS DATE | BY APPO. ALASKA POWER AUTHORITY NORTHEAST INTEATIE JOB NO. ORAWING NO 138KV, 12 MI FT. WAINWRIGHT (EXISTING) 13.2-138KV 13.2-69KV 13.2-136Kv 2 ] 45/60/75 wva, [36/48/60 wwa [45/60/75 wa a ae oak g \ sere 69KV MAPCO NORTH POLE SUBSTATION u ee ~ ~ 138KV (ore 3 138KV. 22 MI. (NEW) 795 ACSA CARNEY SUBSTATION A15KV, 19 MI TEELANO SUB (EXISTING) A15KV, 54 MI wuP2 SUB (EXISTING) 6oxv M6 T BUS EXISTING 439-69KV EXISTING 4 60/80/100 MvA 3 TRANSFER BUS 138KV (NOTE 3) MAIN BUS 7 | | i 136KV._$3 MI. (EXISTING) 356 ACSA GVE FE 1 \ 138KV ' nore 2) - ~EXISTING 115-138KV | 115-24. 9KV 1100/133/167 MVA S MvA aan 24.9KV DISTR ' 1 | ut aes | ' ' ' ' 135Kv,_ 16 MEL (EXISTING) 556 ACSA O'NEILL SUBSTATION MEA O'NEILL TAP SUBSTATION MEA v-4 | ~ EXISTING | 138-24.9Kv a 42/16/20 MVA > Ti & prt GREELY ba L —extsring = 138KV (NOTE 2) eee JARVIS CREEK SUBSTATION GVE 136KV, 160 MI | | ss SSMVAR > | 138-24. KV Br} 12/16/20 eva Po 7 24-9KV 44% Lr~XqQ— 138KV (NOTE 2 = GAKONA SUBSTATION z= CVE — ] |- — EXISTING 138-24. 9KV 12/16/20 MvA Loe SMVAR Extsrnea — exisrine p> | 4 PUMP STA. #11 SUBSTATION 138KV, 112 MI CVE VALDEZ 9kV_OISTR | |. 4 {) NM) eee) | Oa FIGURE 6 LEGEND -——- FUTURE EXPANSION —+— ___ COMMON CONNECTION ——|! GROUND CONNECTION i 1 POWER CIRCUIT BREAKER fe POWER XFMAR, TWO WINDING AUTOTRANSFORMER UND BLADES —“7—_ DISCONNECT SWITCH, 3-PHASE WITH 3 ———_ DISCONNECT SWITCH, 3-PHASE TY REACTOR STATIC VAR SYSTEM 3. NEW SUBSTATION BUS BUILT TO ‘) — _| ORIGINAL ISSUE K__ ZONE. REVISIONS. OATE | 8Y___APPO. REFERENCE ORAMINGS ALASKA POWER AUTHORITY NORTHEAST INTEATIE SINGLE LINE DIAGRAM NORTHWEST ROUTE Study Assumptions and Criteria 1. The N.E. Intertie transmission system consists of the following components: a. r A 100/133/167MVA, 115-138kV, Z = 3%, autotransformer at O'Neill Substation. . A 105-mile, two-conductor bundle, 954 ACSR transmission line, constructed 230kV, between O'Neill Substation and Glennallen Switch Station. An SVS is located at Gakona Substation for reactive compensation. . A20-mile, two-conductor bundle, 954 ACSR transmission line, constructed 230kV, between Glennallen Switch Station and a new substation at Gakona. . A 160-mile, two conductor bundle, 954 ACSR transmission line, constructed 230kV, between Gakona and Jarvis Creek Substation. A 22-mile, 795 ACSR transmission line, constructed 138kV, between Carney Substation and North Pole Substation. 2. The entire N.E. Intertie is operated at 138kV. 3. The 115kV transmission line between Dow and Eklutna in the MEA system is closed on both ends. This forms a transmission path between Teeland Substation and MLP2 Substation. 4. In the year 2008, the system has the following upgrades: a. b. fn The Bradley Lake generation is on-line. The University Substation 138-115kV transformer is paralleled with an identical unit. A 69kV transmission tie line is between Tesoro and Beaver Substations. . A + 7Mvar SVS is installed at Daves Creek Substation for reactive support of the 115kV transmission line. . The Quartz Creek Substation 115-69kV transformer is replaced with a 25MVA unit. 5. Generation Schedule guide is as follows: Summer Valley Loads - Hydro: Eklutna shutdown 9LUG 1361 (08/31/89) V-5 Bradley Lake shutdown Cooper Lake shutdown Solomon Gulch 12MW Fairbanks: Healy and Chena 5 on-line 15MW of cogen on-line in 10 to 20 years Import remainder from Anchorage MLP: Units 5, 6 and 7 on-line as required CEA: Beluga 5, 6, 7, 8on-line Bernice 1 unit on-line HEA: Soldotna shutdown Winter Peak Loads - Hydro: Eklutna maximum Bradley Lake maximum Cooper Lake maximum Solomon Gulch 4MW Fairbanks: Healy and Chena 5 near maximum 15MW of cogen on-line in 10 to 20 years Import up to limit of intertie Run North Pole when import is inadequate MLP: Units 5, 6, 7 on-line Units 4 and 8 added if needed to meet load CEA: Beluga 3,5, 6,7, 8 on-line Bernice as necessary to meet load HEA: Soldotna off currently, on in 10 to 20 years to meet load QLUG 1361 (08/31/89) V-6 6. Maximum line loading by conductor and voltage is assumed to be as follows: Maximum conductor loading is based upon a conductor thermal rise of 50°C above 25°C ambient with a wind of 1.4 miles per hour. : Line Load MVA Conductor Ampacity ACSR AMP: is 115kV 138kV 230kV p56 0s | sn 735__| 900 | 9 | 215 | 359 [354] 1080 [2 | 253 | a2 7. Breaker clearing times are four cycles for the zone 1 near end faults and six cycles for zone 2 far end faults. This assumes transfer tripping on all lines. Conclusions Power transfer from Anchorage to Fairbanks is increased by the N.E. Intertie and service from the Railbelt interconnected power system is provided to the Copper Valley system. With all transmission lines in service, 150 MW can be transferred from Anchorage over the interties to Fairbanks and an additional 17 MW can be transferred to the Copper Valley system. None of the existing transmission lines or facilities ratings will be exceeded at this transfer level. An SVS of + 30 Mvars is required in the vicinity of Glennallen for voltage stability. Transferring 150 MW from O’‘Neill Tap over the N.E. Intertie will result in 140 MW delivered to Glennallen and 122 MW delivered to the Fairbanks system at Jarvis Creek. An SVS of approximately +100 Mvar -30 Mvar located in the vicinity of Glennallen is required for voltage stability. At this transfer level from O'Neill Tap to the N.E. Intertie, the 115kV line from O'Neill Tap to O'Neill Substation will be at 103% of rated capacity and the Teeland to O'Neill Tap 115kV line will be at 104% of rated capacity. The rated capacity is based upon 50° C conductor thermal rise above 25°C (77° F) ambient air temperature (summer conditions). It is assumed that a 150 MW transfer from O'Neill Tap will be a winter operating condition. For winter air 9LUG 1361 (08/31/89) V-7 temperature conditions, transferring 150 MW from O'Neill Tap to the N.E. Intertie will not exceed the Teeland to O’Neill Tap and the O'Neill Tap to O'Neill Substation 115kV line winter ratings. These lines will be near rated winter capacity which will result in high losses. Although the N.E. Intertie, with a +100 Mvar-30 Mvar SVS at Glennallen, has a transfer capability of 150 MW from O'Neill Tap, the remaining Railbelt system does not have the capability to supply power at this level if any of the major interties to the N.E. Intertie are open. The maximum interchange capability of the existing intertie is approximately 70 MW. This limitation limits the single contingency line outage transfer from the standpoint of reliability. If more than 70 MW is being transferred and the N.E. Intertie trips out, rapid load shedding in the Fairbanks area would be required. For maximum system reliability, the existing intertie interchange capability should be increased to 150 MW transferred from Douglas. This would allow a single contingency outage of either intertie at a transfer level of 150 MW without interrupting service to Fairbanks and the Copper Valley system. A single contingency line outage in the 115kV MEA transmission system will limit the N.E. Intertie transmission capability to approximately 70 MW. If the existing Anchorage-Fairbanks intertie capacity is upgraded to 150 MW transfer capability, an outage in the MEA 115kV transmission system should not cause an outage in Fairbanks. The power transfer to Fairbanks could be scheduled from the N.E. Intertie to the existing intertie without interrupting power to Fairbanks. The most limiting line outage condition for the Anchorage-Fairbanks intertie is the Teeland-Pt MacKenzie 230kV line. An outage of this line will limit the transfer north from Anchorage to approximately 20 MW. This would result in islanding the Fairbanks and Copper Valley systems during heavy transfer conditions. Both systems would experience power outages until generation could be restored. Another transmission tie line between Pt MacKenzie and the Anchorage interties will be required to alleviate this condition. Additional generation will be required in the Anchorage area prior to the year 2008 to meet a requirement of 150 MW transfer to Fairbanks or, a larger capacity tie line to the Kenai. The Kenai will have available generation with Bradley Lake on line. The spinning reserve requirement of the interconnected system must also be met 9u. 5 1361 (08/31/89) V-8 which may require additional generation in the Anchorage area, a larger tie line to the Kenai, or a comprehensive system wide load shedding scheme. A combination of all three options is possible. The N.E. Intertie will improve the reliability of service to the Fairbanks area by :roviding an alternate path for power transfer. Without the N.E. Intertie, a line outage between Teeland and Gold Hill Substations will result in Fairbanks being islanded, causing consumer outages. With the N.E. Intertie, islanding would not occur for transfer levels within the system ratings. Outage records indicate that twenty outages have occurred between Teeland and Gold Hill Substations since 1983. The N.E. Intertie will add approximately 285 miles of line exposure to the interconnected system. With the terrain and weather conditions in the area it is conceivable that several outages a year could occur. With both interties in service and operating within stable single line outage contingency transfers, faults on the N.E. Intertie will not decrease the intertie system reliability. Rapid fault clearing will be a requirement for the intertie to insure system reliability. The Copper Valley system reliability will be improved with the N.E. Intertie. The system will be loop fed from both Anchorage-Fairbanks interties. A single contingency outage of either intertie will not cause an outage in the Copper Valley system. Also, loss of the Solomon Gulch hydro generator will not cause a major disturbance in the system. The new substation at Gakona will allow the Copper Valley system to provide power to other consumers in the area. The interconnection will also allow sale of approximately fourteen million KWH of energy now being spilled annually at Solomon Gulch. Stability of the interconnected Railbelt power system and of the Copper Valley system will be improved by the N.E. Intertie. The N.E. Intertie will eliminate the’ islanding problem between Anchorage and Fairbanks when an outage occurs on the intertie. For the Copper Valley system, the N.E. Intertie will eliminate the problem of islanding Glennallen from the Solomon Gulch hydro generator when an outage occurs on the Glennallen-Valdez line. In summary, the advantages and disadvantages of the N.E. Intertie being in service are: 9LUG 1361 (08/31/89) v-9 Advantages » Greater transfer capability to Fairbanks. b. Greater capacity for the Copper Valley system. c. Improved transient stability of the entire Railbelt system for faults on the Anchorage-Fairbanks Intertie. d. Improved reliability of service to Fairbanks. e. Lower losses in the GVEA system. f. Improved transient stability of the Copper Valley system for faults on the Glennallen-Valdez Intertie. Improved reliability of service in the Copper Valley System. => a Allow full utilization of Solomon Gulch Hydrogeneration output. Disadvantages a. __ Larger power and var flows in the MEA system. b. Greater losses in the MEA system. c. The possibility of outages in the MEA system caused by power swings during system disturbances. Recommendations It is recommended that additional system improvements be investigated in conjunction with the N.E. Intertie in order to derive full advantage of the N.E. Intertie capability. The recommended system improvement investigations are: 1. Improve the existing Anchorage-Fairbanks intertie transfer capability to be consistent with the N.E. Intertie and the desired system transfer requirements. The design of both interties should allow for an outage of either intertie without islanding Fairbanks. 2. Review the system load shedding scheme and provide improvements as necessary for stability during system disturbances. 3. Reinforce the transmission system between Pt MacKenzie and the existing and N.E. interties to provide greater capacity for the case of a line outage 9LUG 1361 (08/31/89) V-10 contingency. Sufficient reinforcement should be provided to prevent the MEA transmission system from tripping on system power swings. 4. Investigate transfer tripping and rapid reclosing of all transmission lines involved in the transfer of power over the interties. 5. Investigate single pole tripping of critical lines involved in the intertie. 6. Coordinate all improvements into a system stability and reliability plan. Engineering studies required for the detailed line and station design are: Economic conductor size. SVS optimization and placement. Fixed reactive optimization and placement. TNA to determine insulation coordination and switching requirements. Critical clearing time of relaying. Short circuit study. Soils testing. SOT ewe Discussion of Results Load Flow Study The load flow study of the Railbelt Utilities interconnected transmission system was performed on an Apollo computer using Electrocon International Power System Analysis (PSA) software. This is the same software used by the University of Alaska (U of A) who maintains the Railbelt Utility transmission system data base. The base data case for this study was provided by the U of A and labeled power flow case 87 PEAK 40N.E Il. Present and projected loads were obtained from the utilities. These loads are summarized in Table 1 (see Section X-14) as winter peak and summer valley loads for each utility (Lawing refers to the Seward load). Current, 10-year, and 20-year projected loads are tabulated. Generation schedules used for the load flow cases are given in Tables 2 thru 7. The term HW88 refers to Heavy Winter 1988 loads (winter peak), LS88 refers to Light Summer 1988 loads (summer valley). HW08 and LS08 refers to Heavy Winter and 9LUG 1361 (08/31/89) V-11 Light Summer 2008 loads. The generation schedules are set for specific power transfers over the Anchorage-Fairbanks interties. Load flow cases were run using the U of A base case modified to include the N.E. Intertie transmission system and the CVEA transmission system including Solomon Gulch hydrogenerators in Valdez. The load flow cases are listed at the end of this section for 1988 loads and for 2008 loads. The cases represent various import levels from Anchorage to Fairbanks with various line outage conditions that affect power flows in the existing and N.E. Anchorage-Fairbanks interties, and the transmission lines feeding these interties. Items noted in the comments in the load flow case listings are the flows on the Anchorage-Fairbanks interties, the reactive compensation requirement at Gakona Substation, and any line overload condition or undesirable system operating condition. Using 1988 loads and transferring up to 100 MW on the interties, the only line that reached maximum loading was the Teeland-O’Neill line in Case 5. The SVS reactive requirements at Gakona varied from +25 Mvars to -53 Mvars. The maximum var flow into the MEA system was 25 Mvars. The transfer limit on the existing Anchorage-Fairbanks intertie is approximately 70 MW. Therefore, a 70 MW transfer limit was used for load flow cases involving outages of the N.E. Intertie. Using 2008 winter loads, load flow cases were run transferring 70, 100 and 150 MW on the Anchorage-Fairbanks interties. Line overloading occurred on the MEA 115kV system for certain line outage conditions. No other line overloading occurred and no transformer overloading occurred. Maximum import from the Kenai into University Substation is approximately 68 MW. Generation scheduling was adjusted such that this import was not exceeded. This limitation from the Kenai required scheduling excessive generation from MLP and Beluga for the cases of 150 MW transfer to Fairbanks. The SVS reactive requirement at Gakona varied from +30 Mvar to -30 Mvar for all cases except the 150 MW transfer over the N.E. Intertie which required +97 Mvar of reactive compensation. High voltage occurred at PS 11 with the transmission line open from PS 11 to Gakona. A 15 Mvar reactor is required to bring the voltage within 5% of nominal. A 15 Mvar reactor will also be required at Gakona if the SVS is out of service and the GVEA system is fed radial from O'Neill. 9LUG 1361 (08/31/89) V-1 2 System loss summaries are tabulated in Tables 8 through 16 for the U of A base case; the U of A base case with the N.E. Intertie; 1988 cases 2 HW88, 10 HW88 and LS88; and 2008 cases 1 HW08, 2 HW08, 13 HW08 and LSO8. Losses are indicated by utility with the system total. Loss tabulations have not been included for line outage conditions. The load flow study utilized the U of A data base. No attempt was made in the data base to adjust transformer tap to adjust voltage or var flow. During heavy winter loading, the capacitor bank at Soldotna was on-line. During light summer loading, all system reactors were on line and the Soldotna capacitor bank was off-line. 9LUG 1361 (08/31/89) V-13 ia Nie io HW88 HW88 HW88 HW88 HW88 Load Flow Runs 1988 Loads Description Comments 102 MW Transfer Existing Intertie 37 MW to Fairbanks N.E. Intertie 75 MW HW88 loads P.S.11 Compensation -8 Mvar 100MW Transfer Generation Schedule Same as Case 2 HW88 Existing Intertie OMW Outage Douglas-Teeland Line _N.E. Intertie 115 MW Same as Case 2 HW88 Outage Teeland - Cottle Line Same as Case 2 HW88 Outage MLP2 - Briggs Line Same as Case 2 HW88 72 MW Transfer to Fairbanks 72 MW Transfer Generation Schedule Outage O'Neill - P.S. 11 Line Same as Case 6 HW88 9LUG 1361 (08/31/89) P.S.11 Compensation 25 Mvars Teeland - O'Neill 67 MW MLP2 - O'Neill 53 MW O'Neill Tap - O'Neill 119 MW 21Mvar flow into MEA at O'Neill Existing Intertie 49 MW N.E. Intertie 63 MW P.S.11 Compensation -1Mvar MLP2 - O'Neill 114 MW Existing Intertie 42 MW N.E. Intertie 71 MW P.S.11 Compensation -6 Mvar Teeland - O'Neill 117 MW Existing Intertie 81 MW N.E. Intertie 0 MW P.S.11 Compensation -27 Mvar Existing Intertie 72 MW V-14 HW88 HW88s HW88 10 HW88 LS88 Outage P.S. 11 - Gakona Line Same as Case 6 HW88 Outage Gakona - Jarvis Line Same as Case 6 HW88 Outage Solomon Hydro Same as Case 6 HW88 No line outages Same as Case 2 HW88 17 MW Transfer to Fairbanks LS88 loads LS88 Generation Schedule LUG 1361 (08/31/89) N.E. Intertie 7 MW P.S.11 Compensation -13 Mvar High Voltage at Gakona 1.126 PU Existing Intertie 72 MW N.E. Intertie 7 MW P.S.11 Compensation -13 Mvar Existing Intertie 38 MW N.E. Intertie 79 MW P.S.11 Compensation -7 Mvar Existing Intertie MW N.E. Intertie MW P.S. 11 Compensation Mvar Existing Intertie 4MwW N.E. Intertie 12 MW P.S.11 Compensation -53 Mvar 0 Mvar flow into MEA at O'Neill V-15 Case 1 HW08 HW08 HW08 HW08 HW08 HW08 Load Flow Runs 2008 Loads Description Comments 98 MW Transfer Existing Intertie 37 MW to Fairbanks N.E. Intertie 83 MW HW08 loads P.S. 11 Compensation 2 Mvar 100 MW Transfer Generation Schedule 56 MW Transfer to Fairbanks HW08 loads 56MW Transfer Generation Schedule Same as Case 1 HW08 Outage Teeland - Douglas Line Same as Case 1 HW08 Outage Teeland - O'Neill Same as Case 1 HW08 Outage MLP2 - O'Neill Line Same as Case 2 HW08 Outage O'Neill - P.S. 11 Line 9LUG 1361 (08/31/89) Daves Ck. to University 85 MW Low voltage on this line. 0.93PU at Portage. 27Mvar flow into MEA at O'Neill. Existing Intertie 22 MW N.E. Intertie 55 MW P.S. 11 Compensation -15 Mvars 24Mvar flow into MEA at O’Neill Existing Intertie OoMwW N.E. Intertie 123 MW P.S.11 Compensation 30 Mvar Teeland - O'Neill 113 MW Existing Intertie 53 MW N.E. Intertie 66 MW P.S.11 Compensation 13 Mvar MLP2 - O'Neill 141 MW Existing Intertie 42 MW N.E. Intertie 75 MW P.S. 11 Compensation 6 Mvar Teeland O'Neill 146 MW Existing Intertie 79 MW N.E. Intertie OMW P.S.11 Compensation -19 Mvar V-16 HW08 HW08 HW08 10 HW08 11 HW08 12 HW08 13 QLUG 1361 (08/31/89) Same as Case 2 HW08 Outage P.S. 11 - Gakona Line Same as Case 2 HW08 Outage Gakona - Jarvis Same as Case 2 HW08 Outage Solomon Gulch Same as Case 1 HW08 Transfer 150 MW over N.E. Intertie Outage Teeland - Douglas Line HW08 loads 150MW Transfer Generation Schedule Same as Case 1 HW08 Outage Teeland - Pt MacKenzie Line Same as Case 2 HW08 Outage Teeland - Pt MacKenzie Line Same as Case 10 HW08 No line outages Existing Intertie N.E. Intertie P.S. 11 Compensation High voltage at Gakona 1.104PU Existing Intertie N.E. Intertie P.S. 11 Compensation Existing Intertie N.E. Intertie P.S. 11 Compensation Existing Intertie N.E. Intertie P.S. 11 Compensation Teeland-O’Neill Tap O’Neill Tap-O’Neill Existing Intertie N.E. Intertie P.S. 11 Compensation MLP2 - O’Neill Existing Intertie N.E. Intertie P.S. 11 Compensation MLP2 - O'Neill Existing Intertie N.E. Intertie V-17 63 MW 12 MW -5 Mvar 58 MW 16 MW -6 Mvar 37 MW 84 MW 4 Mvar Oo MW 165 MW 97 Mvar 143 MW 174 MW 28 MW 92 MW 58 Mvar 258 MW 12 MW 59 MW 6 Mvar 172 MW 51 MW 104 MW P.S.11 Compensation 22 Mvar 29Mvar flow into MEA at O'Neill 2 Same as Case 1 HW08 Existing Intertie 2MW LSO8 17 MW Transfer to Fairbanks N.E. Intertie 35 MW LS08 loads P.S.11 Compensation -30 Mvar LSO8 Generatrion Schedule 9Mvars flow into MEA at O'Neill Transient Stability Study Transient stability cases were run to determine the size requirement of the Gakona Substation SVS for system dynamic stability. The study was performed on an Apollo computer using Electrocon International PSA software. The transient stability base case was provided by the U of A. Machine data for Solomon Gulch and Bradley Lake generation was added to the U of A data base as was data for the Gakona Substation SVS. Typical hydrogenerator machine and exciter data was used for Solomon Gulch and Bradley Lake because actual data was not available. Typical data for the SVS was provided by Asea Brown Boveri Corporation. The load flow case used for the stability study was Case 2 HW08. This case has peak winter loads and 70 MW Anchorage-Fairbanks interchange transfer. Heavy winter loads provide the most severe condition for stability. The 70 MW interchange transfer was used in order to not exceed the transfer capability of the existing Anchorage-Fairbanks Intertie. Transient stability results for three case studies are included in the Appendix II. These three cases represent critical fault and line clearing conditions for the interconnected transmission system. The case descriptions and comments are summarized at the end of this section. Case 1 stability study faults and opens the N.E. Intertie, shifting the total interchange power flow to the existing intertie. The stability model assumed that no other transmission lines would trip due to power swings. The system machine angles and bus voltages remained stable for this case. A voltage overshoot occurs at Gakona immediately following fault clearing. This overshoot is caused by the SVS control model. During the fault, the SVS control voltage is depressed causing the 9U. 31361 (08/31-89) V-18 SVS control to request maximum vars. When the voltage recovers following fault clearing, the vars produced by the SVS increase instantly. The SVS control can not respond this fast which results in a voltage spike. The SVS control recovers within a cycle. In an actual SVS, controls are included to prevent voltage spikes following fault clearing. This voltage spike occurs in each stability case but does not impact the results of the study because the duration of the voltage spike is extremely short. (approximately 2ms) An overshoot and recovery also occurs in the SVS‘s on the existing intertie. The recovery is longer due to longer control time constants. The recovery appears to be approximately three cycles. Case 2 stability study faults and opens the Teeland-Pt Mackenzie 230kV transmission line which is the major interconnection between Beluga generation and the interties to Fairbanks. An outage of this line causes an overload of the MLP2-O'Neill line. The stability model assumes that no lines will trip due to power swings. This may be difficult to accomplish for the MLP2-O'Neill line. The steady state load flow case showed a 150 percent overload. If the MLP2-O’Neill line were to trip, the Fairbanks, Copper Valley, and MEA systems would be islanded from Anchorage. The stability of all of the Railbelt systems would be jeopardized if this occurred. For the case modeled, the machines angles and bus voltages remain stable. The SVS at Gakona swings from +30 to-10 Mvar. Case 3 stability study faults and opens the Teeland-O’Neill tap line. Power flow on the N.E. Intertie flows through the MLP2-O’Neill tap line. The stability model assumes that no lines will trip due to power swings. The system disturbance results indicate that the MLP2-O’Neill tap line relaying could be designed with swing blocking to not trip for this disturbance case. For the case modeled, the machine angles and bus voltages remain stable. 9LUG 1361 (08/31/89) V-19 Transient Stability Runs Case 9LUG 1361 (08/31/89) Description Load Flow Case 2 HW08 56 MW Transfer to Fairbanks. Fault Gakona - Jarvis Line near Jarvis, clear Jarvis in 4 cycles, clear Gakona in 6 cycles, Gakona SVS + 30 Mvar. Load Flow Case 2 HW08 56 MW Transfer to Fairbanks. Fault Teeland - Pt MacKenzie Line near Pt MacKenzie, clear Pt MacKenzie in 4 cycles, clear Teeland in 6 cycles, Gakona SVS + 30 Mvar. Load Flow Case 2 HW08 56 MW Transfer to Fairbanks. Fault Lazellet - O'Neill Tap Line near O'Neill. Clear O'Neill Tap in 4 cycles, clear Teeland in 6 cycles, Gakona SVS + 30 Mvar. V-20 Comments Voltage at Gakona 138kV bus reached approximately 1.25 PU when the Gakona end cleared. All generators remained stable. Voltage at Gakona 138kV bus reached approximately 1.2 PU when the Pt MacKenzie end cleared. O’Neill 115kV reached 0.89 PU for approximately 10 cycles (40 to 50 cycles). All generators remained stable. Voltage at Gakona 138kV bus reached approximately 1.1 PU when the Teeland end cleared. All generators remained stable. VI. ROUTE SELECTION ALTERNATIVES POWER Engineers, Incorporated VI. ROUTE SELECTION ALTERNATIVES In order to develop a transmission line route between the Matanuska Valley and Delta Junction, two major corridors and one sub-corridor were considered. The first corridor is the general Glenn Highway - Richardson Highway corridor. This general corridor would follow the Glenn Highway eastward from Sutton to Glennallen, and then route north along the Richardson Highway to Delta Junction. A second alternate is to follow the Anchorage-Fairbanks Intertie to Cantwell, following the Denali Highway to Paxon, and then north to Delta Junction. A line would have to run south from Paxon to Glennallen and Gakona Junction. The third alternative is to route eastward along the Glenn Highway, north across the flat areas near Lake Louise, and eastward to Sourdough. This would also require a line south to Gakona Junction and Glennallen. Considering these three alternatives within the context of cost, land availability, and environmental impact, the first alternative, Glenn Highway - Richardson Highway, has the least line length (hence less cost). In terms of environmental impacts, consideration of the Denali Highway as a scenic corridor precludes the use of the second alternative. The extensive wetlands in the area north of the Glenn Highway between Lake Louise and Glennallen and the use of this area as a significant swan nesting area make this an unfavorable choice. Distance from a major transportation corridor and the associated overland construction impacts would also make routing in this area less desirable. It would appear that utilizing either of the second two alternatives would allow the line to be constructed primarily on state or federal lands. However, the need to connect either alternative back to Glennallen requires the crossing of privately held Ahtna land (native’s land) in the Gakona Junction to Glennallen area. Therefore, no advantage, either in cost or ease of obtaining right-of-way, exists. Therefore, routes which roughly parallel the Glenn and Richardson Highways were chosen for further study. QLUG 1361 (08/31/89) Vi-1 The main criteria used for the selection of a specific route were: © Avoidance of areas with significant environmental impacts. @ Close proximity to transportation, or reasonable access for construction and maintenance. @ Avoidance of lands which might be difficult to obtain, or where it would be difficult to obtain a right-of-way permit. Generally, routes were selected which avoided conflicts with major existing pipelines or proposed pipeline rights-of-way. A distance of 1/4 mile was used to separate the route from a pipeline, except for direct crossings. When possible, the line routes were placed so that they avoided locations in which the line would provide an interruption to a scenic view. To accomplish this, routes were located to provide a rising backdrop, or the line was placed at a lower elevation from the location that the viewer would occupy. For the most part, the view would be from the highway corridor, but crossing the end of scenic lakes was also avoided. In relatively flat, treed areas, the line routes were placed more than a 1/4 mile from the highway corridor to minimize the visual disturbance. Two main routes were chosen. One route was located north of the Glenn Highway, connecting to a route proceeding north of Glennallen on the west side of the Richardson Highway. This route has been named the Northwest Route. Similarly, a route which passes mainly to the south of the Glenn Highway was selected. This route connected to a route primarily to the east of the Richardson Highway and is named the Southeast Route. Route Descriptions Southeast Route The Southeast Route begins at O'Neill Substation near Sutton and runs north of the Glenn Highway for a distance of 17 miles before it crosses to the south side. With the exception of a short stretch near Hicks Creek (Mile 33.5) and Caribou Creek (Mile 41 to 42), it remains on the south side. 9LUG 1361 (08/31/89) VI-2 For the first 6 miles, the route is at the same elevation as the highway. At Mile 6, it rises perpendicular to the slope of the terrace above and continues on the higher terrain above the highway for 11 miles until it crosses the highway at Mile 17. The route is very close to the highway and just above the Matanuska River from Mile 20 to 23. It passes south of Long Lake 3/4 mile from the highway and rejoins the highway at Mile 30. It passes very close to the highway near the Matanuska Glacier through an area of mixed ownership, including a recreation site. Mitigation of impacts at this location requires two highway crossings to place it on the north side of the highway for 2 miles which is necessary if this route is to be feasible. The route continues within 1/4 mile of the highway on the south side until Mile 60 after which it is located 1/2 to 3/4 mile from the highway. There are variations to 1 mile south of the highway near Cache Creek, Mendeltna Lodge and Tazlina, as well as at Wood’s Creek and Mile 102.75. Along all of this route, fairly gentle terrain will be crossed. Near Tolsana Creek, the line has been routed to avoid the state recreation site. From Mile 108 to 115.5 the line would be 1/4 mile south of the highway but moves to more than a mile south of the highway near Glennallen. The route then angles southeasterly until it meets the 138kV-line coming from Valdez. A switching station would be required at the line intersection, approximately one mile south of Pump Station 11. The Southeast Route goes northeast over relatively flat terrain, and then roughly parallels the Copper River north to Gakona Junction. It remains relatively close to the highway to Mile 168 near Hogan Hill and then varies from 1 mile to 3 miles east of the Richardson Highway to approximately Mile 200 just south of Summit Lake. The route traverses east of Summit Lake, north to Gunn Creek, across a broad deltaic river bed to Phelan Creek and follows the highway to Mile 218.3. It crosses the highway at this point avoiding an avalanche hazard area for 2.5 miles when it recrosses the highway. It remains very close to the highway until approximately Mile 241, at which point it traverses a relatively steep slope for several miles and then continues northward at elevation 3000 feet and then descends to elevation 2250 near the highway, finally crossing the highway at Mile 259 and continues on the west side of the highway into Delta Junction. 9LUG 1361 (08/31/89) VI-3 Both the Northwest and Southeast routes have private land in the area between the O'Neil Substation and the Matanuska Glacier. Otherwise, borough and state lands are crossed. Both routes traverse a length of native lands. The Southeast Route crosses several short parcels of Chickaloon land and, subsequently, 69.44 miles of Ahtna land east and north of Glennallen compared to 38.7 miles of Ahtna land for the Northwest Route. The Southeast Route has a more limited ownership than the Northwest Route in the Gakona Junction area, crossing private and village land. North of Sourdough, both routes are primarily on federal land, with the exception of a very short connection to the Jarvis Substation in Delta Junction. Northwest Route The Northwest Route is so named because it passes north of the Glenn Highway from Sutton to Glennallen and primarily west of the Richardson Highway. This route begins at the O'Neill Substation near Sutton and runs 3/4 to 1 mile north of the Glenn Highway on a higher terrace for the first 6 miles. It passes up the King River Valley to a point approximately 3 miles north of the highway and continues eastward from Mile 13 to 17 when it crosses the Chickaloon River. It then follows within 1/4 to 1/2 mile of the highway to Mile 35. In this stretch, it passes through very difficult terrain north of Long Lake in which it rises to over 1,000 feet above the highway near the lake. From Mile 35 to 41, it originally ran in the highway right-of- way, then follows Caribou Creek away from the highway several miles, finally following Squaw Creek eastward and coming to 1/4 mile from the highway at Tahneta Lake at Mile 57.5. A revision has been made to re-route away from the highway east of Caribou Creek. From Mile 57.5, it follows close to the highway on the north side until Mile 80. From Mile 80 to Glennallen, it remains more than 3/4 mile north of the highway diverging the greatest amount near Moose Lake (Mile 104) where it passes to the north of Moose Lake some 2 1/2 miles from the highway. The line crosses over the pipeline north of Glennallen and turns almost directly northward. East of Gulkana airport, it passes on the western boundary of the Dry Creek State Recreation Site, very close to the pipeline corridor. The line has a connection to the proposed Gakona Junction Substation from the Gakona Junction Substation a second circuit or 115kV line runs back south to the pipeline crossing North of Glennallen. The 138kV line between the pipeline crossing and Gakona Junction Substation is on the same structures as the main line. From the pipeline 9LUG 1361 (0831/89) VI-4 crossing, the 138kV line continues south one mile to Pump Station 11 Substation. The line continues north from the Gakona Junction Substation paralleling the west side of the Gulkana River. The route crosses the Gulkana River immediately west of Sourdough and continues on the west side of the Richardson Highway until Mile 174 where it crosses to the east. It recrosses the highway just north of Meiers Lake and then crosses back to the east side at Mile 192.5. Just south of Summit Lake, the route crosses the highway directly east to west and follows the west side of Summit Lake to Isabel Pass. It remains west of the highway and the Alyeska Oil Pipeline by crossing the Delta River at Mile 215. The route recrosses the Delta River three more times in the next several miles ending up on the east side of Mile 238 where it also crosses the highway. It then follows the highway closely crossing it again at Mile 239 and finally at Mile 253 to remain on the west side into Delta Junction. QLUG 1361 (08/31/89) VI-S Vil. SUGGESTED ROUTE POWER Engineers, Incorporated Vil. SUGGESTED ROUTE Suggested Route Description The Suggested Route is one selected for more detailed study based on the initial route evaluation. This route is suggested because: 1. Itis feasible to obtain the right-of-way. 2. It does not have any environmental concerns which would prevent construction, or impacts which cannot be mitigated. 3. Permitting is feasible within a reasonable schedule. 4. Itis competitive from a cost of construction point of view. The route from the O'Neill Substation to just east of Glennallen is identical to the Northwest Route described in Section VI, Route Selection Alternatives. At Glennallen, a change was made from the original alternatives in which the 230kV route crosses the pipeline and proceeds north to the proposed Gakona Junction Substation. From just east of the pipeline to the Gakona Junction Substation would be a double circuit line to accommodate the 138kV tie back to the Pump Station No. 11 Substation at Glennallen. From the Gakona Junction Substation north, the line travels almost exactly northward until it reaches a point just south of the Gakona River. At this point, it departs from the original Northwest Route and crosses the Gakona River and connects to what was the original Southeast Alternative Route. From this point, which is approximately 2-1/2 miles south of Sourdough, the Suggested Route follows the Southeast Route to the Jarvis Creek Substation in Delta Junction, Discussion of Suggested Route Selection Several factors affect the choice of a Suggested Route for more detailed study. In the initial portion of the intertie between the O'Neill Substation and Glennallen, the main considerations are availability of right-of-way and aesthetics. In a direct comparison between the two routes, it is apparent that land ownership is less complicated and, therefore, right-of-way acquisition more likely to be accomplished in a reasonable time frame on the Northwest segment in this area. SLUG 1361 (08/31/89) Vil-1 Aesthetics were viewed primarily as the viewer would see it from the highway. However, the impact to the viewer was considered from recreational access areas and lakes. The Northwest segment afforded fewer highway crossings that the Southeast route. In fact, there are no crossings of the Glenn Highway between Sutton and Giennallen. All other environmental factors were not significantly different, and cost for right- of-way use was estimated to be lower for the Northwest segment. North of Glennallen, the western route was chosen because it offered a relatively simple tie-in to Gakona Junction by locating the proposed substation near the oil pipeline right-of-way and allowing the Copper Valley Electric Association to utilize existing or new right-of-way to run a line to Gakona Junction. The route in this area will have almost no visual impact, being located away from the highway. The crossing was made at the Gakona River, south of Sourdough, because of the designation of Wild and Scenic Rivers for both the Gakona and Delta Rivers north of there. The route on the east side, which is an extension of the Southeast Route, has easier construction access and minimal aesthetic impacts compared to the Northwest Route in this area. Although three highway crossings are needed, in one case to avoid an avalanche hazard area at Rainbow Ridge, the visual impact of the line would be much less than the Northwest alternative. All other environmental, permitting, and right-of-way issues between Sourdough and Delta Junction were not significantly different enough to affect the choice. Golden Valley Electric Association has identified a route between the North Pole Substation and the Carney Substation. This right-of-way follows section lines and contains several parcels of land belonging to the State of Alaska. In addition, there are two crossings of the Alyeska Pipeline. The route leaves the North Pole Substation and crosses Section 21, T2S, R2E and from the point where it meets the south section line of Section 22, T2S, R2E, it follows the section lines approximately 27 miles to the Carney Substation. The total length of line is approximately 28 miles. The line will be 138kV, constructed on wood piles in a 30-foot right-of-way adjacent to a 50-foot section line easement. 9LUG 1361 (08/31/89) VII-2 The route stays to the west of the Richardson Highway for 16 miles and then crosses to the east side of the highway. It crosses the Alyeska Pipeline at Mile 25 and 27.3. The route has thirteen 90° corners and one 45° angle. The GVEA route map and data sheets on the route and land ownership are contained in Exhibit V. Cost Summary: The Northeast Intertie cost for the Suggested Route is summarized as follows: Environmental Costs $ 3,521,875.00 Right-of-Way Acquisition Costs 1,520,300.00 Transmission Line Costs 119,205,000.00 Station Costs 31,943,224.00 Total Cost $ 156,190,399.00 9LUG 1361 (08/31/89) VII-3 Route Map (Suggested Route) Map Symbol Key Mile Marker | Preferred Route Tower / Link Number / Substation Double Circuit Alternate Route Corner Siructure Land Ownership Designation F US Government N Native S State of Alaska M Military L Local Government P Private -=—=" Recommended Mitigation Route Location Key SIG ge a (976. 1m So" <2 Deita- oZala a 10g sy? * Anchorage — SNS Wve | eP Base maps: USGS 1:63360 Series Route Map (Suggested Route) a mens & a Anchorage Route Map (Suggested Route) Anchorage 7 Re ee Here Route Map (Suggested Route) bes lee Leal op lee Tee ey lege la > —TALKEETNA MT : : wel lg Wa | GULKANA(S) a” 8 = 3 3 crage a We | : MATANUSKA Route Map (Suggested Route) oa Stele le > leap lee - SEeee, FS leis yy | wy op tee | ap |e piso sis spseastoia sane m| ot a] Giennalien ma Anchorage Fy A ee | te Route Map (Suggested Route) TuNReN Giennailen OP |e icay tse * recy Anchorage ~7 RON Tee | ITSP Route Map i (Suggested Route) é 1a - Pie Anchorage ~ + Re lee ee Route Map (Suggested Route) 5” | @ ws a ere = g 1A ' Anchorage 2 ~ NS Ep | we 3 Fe ee [age [oP 2 ie > [> bs Pobre ae Asis ge SS Se Route Map (Suggested Route) sf uke sas > mm = zie 9 a = eos swore Route Map iA Se Gol cs re TA(S) }— 76 wha Ne oe ® |Gakona Pubspatieg, “~ 2 \*>} *h29 A i 7. a 4 Route Map (Suggested Route) ae ae 1 t=" Route Map Route Map (Suggested Route) ———— LTA(S) S76 win (Suggested Route) Route Map Route Map (Suggested Route) te i KA ) ep : ne Pa NM 7) if ech Ww ‘ \ i Ron \ \V4 es ea 2 Pe acs i Kioikysuaray 2¢ 7 A Si: MS SENN Z. ee ME gh = ri on tok | edi® ) aus 1 ep ed Q . j The WSS WC TY MCE. 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S s | P | \ Soy 2 as » A ° Tapes| os © NY \ ZA 3 NWS ess JA3)\ WES 2 \ < a if al at aw eel UBIEUUBID his urtod Fil ds | taecle eo ENA a] Ba Le io" b S \ i | Phe we } © |¢| epefere| Se MN: aes Se) Se ix re RC hs Oy P| fe] ¢ z Route Map (Suggested Route) “>> \ ex ee Sr 2] ANNE Ki mn I ae i i L oa vue a i va = H y Kon a cine \ Part Pk AS PASS So oe = Route Map (Suggested Route) din Eiceae ld ll t Route Map (Suggested Route) dy; ue ae d/ as - Vill. ENVIRONMENTAL EVALUATION ALTERNATE ROUTES POWER Engineers, Incorporated Vill. ENVIRONMENTAL EVALUATION ALTERNATE ROUTES Description Of Environmental Factors Construction and operation of the proposed Northeast Transmission Line Intertie would affect various aspects of the natural and human environment. For purposes of comparing such effects among the two alternative routes, 12 environmental factors were selected for consideration. A description of each factor and the type of environmental resources potentially affected are presented below. Water Quality Freshwater systems can be adversely affected both directly (via cable stringing and foundation construction) and indirectly (via runoff and siltation from vegetation removal, access road construction, and other up-slope construction activities). The duration of these effects depends on soil and sediment characteristics, re- vegetation and re-colonization rates, and other factors. Floodplains Although transmission lines generally follow natural contours along valleys, floodplain crossings can occur. Although structures themselves will not impede flood flows, access embankments could impede flow and therefore should be avoided or removed following construction. Land Cover Transmission line construction may involve removal of vegetation within all or part of the right-of-way. During maintenance over the life of the project, vegetative growth must be controlled. In addition to the direct loss of a particular vegetative type, terrestrial habitat for birds and mammals may be altered, and certain species may be adversely affected. Other species that utilize more open habitats and the ecotone (transition between habitats) may benefit. 9LUG 1361 (08/31/89) VIll-1 Wetlands Wetlands are a specific land cover type protected by federal regulation. Wetlands can be adversely affected by construction of tower foundations, cable stringing, and up-slope land disturbance. Fish and Wildlife As noted, aquatic and terrestrial habitat can be altered as a result of transmission line construction. Population effects depend on the value of lost habitat, the ability of adjacent areas to support displaced fauna, and the ability of the habitat to replace itself. Effects are generally more pronounced in previously undisturbed areas. There is a potential for loss of birds due to collision with towers or conductors, which is discussed in the next section. This environmental factor focuses on species that are especially sensitive to human disturbance (such as caribou) or have sport or commercial value (such as salmon). Timing of use relative to the construction schedule is also important. Threatened and Endangered Species Construction activities can adversely affect endangered or threatened species, or species of special concern. Although these effects can usually be mitigated by pre- construction surveys and design modifications (including rerouting, as necessary), the mitigation process becomes more lengthy and costly as the potential for encountering these species increases. Archeological and Historic Sites The construction of transmission lines in undeveloped areas can adversely affect important archeological and historic sites and can interfere with cultural and religious uses of the environment. The magnitude of potential effects is related to the number and importance of such resources and activities in the route vicinity. However, specific impacts can generally be avoided or mitigated through appropriate preconstruction surveys and consultation with affected groups. 9LUG 1361 (08/31/89) Vill-2 Land Use The alteration of existing and planned land uses is an important environmental factor in transmission line route selection. This environmental factor focuses on public lands designed for a specific purpose (such as federal, state, and borough recreation and critical habitat areas), for which transmission line routing may present land use conflicts. It also addresses recreational and subsistence uses (fishing, hunting, boating, hiking, etc.) that are not limited to designated public lands. Aesthetics The presence of transmission facilities in undeveloped areas can adversely affect natural aesthetic values and scenic views. These impacts are unique because of the height of transmission towers and the lineal nature of alignments. The magnitude of the impacts are a function of the number of viewers and sensitivity of the environment. Particularly sensitive vantage points include scenic highways, lookouts, and waterways. Common mitigation measures include rerouting, design changes, and screening. Social Impacts Social impacts include temporary and long-term impacts on community infrastructure (such as need for additional public services), employment, and property values. Construction Although a number of the above factors address construction related effects, this factor focuses on air quality, waste disposal, and traffic disruption, all of which disturb the natural and human environment near the alignment. Dust from right- of-way clearing and emissions and noise from vehicles and equipment occur during construction. Timber and slash and right-of-way clearing and excavated soils must be disposed of. Traffic disruption can be minimized. The effects are generally temporary and local. 9LUG 1361 (08/31/89) VIll-3 Operation This factor focuses on electromagnetic interference, human health and safety, maintenance, and right-of-way interference. Electromagnetic interference from operation of 138kV or 230kV transmission line facilities is usually considered minor or insignificant. For voltages of 230kV and lower, ozone and noise generation during operation is not expected to be significant (Boies et al. 1979). These facilities can generate some noise and radio/TV interference in the immediate right-of-way, but the effects are not expected to be noticeable beyond 50 feet from the right-of- way (U.S. Dept. of Energy 1980). Human health was initially considered as a potential environmental factor. However, review of the literature indicates that electric field, magnetic field, and corona effects from transmission lines present no adverse health hazards. A U.S. Department of Energy (1982) review reported "the overall results of this research and the operating experience continues to indicate there is little reason for concern about potential long-term health effects from transmission lines." Further research into health hazards of high voltage transmission lines indicates a considerable number of published articles on the subject. To address these concerns further study was undertaken and is included in subsequent sections. Ground level maintenance (facility inspection and mechanical vegetation control) can result in minor effects on wildlife populations. Finally, this factor considers the potential for increased accessibility to otherwise undisturbed areas and the resultant damage to vegetation, increased erosion, and harassment of wildlife. Discussion of Environmental Factors In the following discussion of environmental factors, the purpose is to present a summary of existing data, and to determine whether or not construction and operation of the Northeast Intertie would impact one route more than the other and what the major impacts would be. For most factors, there is sufficient information to determine whether or not an impact would occur but, in some cases, additional data will be required. 9LUG 1361 (08/31/89) VIII-4 The route maps contain milepost numbers in 10-mile increments. Specific milepost locations referenced in this discussion are the angle tower locations where the transmission line changes direction. Water Quality The Northwest Route contains a total of 143 streams, of which 74 are located between Sutton and Glennallen, and 69 between Glennallen and Delta Junction. The Southeast Route contains a total of 124 streams, of which 60 are located between Sutton and Glennallen, and 64 between Glennallen and Delta Junction. The Northwest Route crosses nine glacial streams, including the Delta River (four times). The Southeast Route crosses 14 glacial streams, including Phelan Creek (three times). If wire stringing operations requiring stream crossings took place in winter, when streams were frozen, or if helicopters were utilized for cable stringing, there would be no impact on water quality. If streams were crossed during the open water season, impacts would generally be temporary and minor (short term increases in suspended sediment). Installation of tower foundations on steep slopes can require the cutting of banks, which can result in increased sedimentation. This can be lessened by helicopter construction and by re-vegetation. Neither route would have a significant effect on water quality. Floodplains The Northwest Route crosses the Delta River four times, and all crossings are located in the Delta River floodplain. The Southeast Route crosses a glacial outwash floodplain between the Cantwell and Castner glaciers. On the Northwest Route, towers locations have been positioned outside the floodplain. On the Southeast Route, some towers will be located in the floodplain on pile foundations, but no fill would be required. Neither route would cause an impedance to floodflows. Land Cover The following general descriptions for each route were developed from vegetation maps (scale 1:1,000,000) in the Southcentral and Yukon Regional Profiles (Univ. of SLUG 1361 (08/31/89) Vill-5 Alaska, Arctic Environmental Information and Data Center, 1974, 1976). Detailed vegetation maps (scale 1:250,000) prepared by the Alaska Department of Natural Resources were used to examine major types of land cover crossed by the alternative routes. Sutton to Glennallen - From Sutton to the confluence of Gravel Creek with the Matanuska River (near the Matanuska Glacier State Recreation Site) both routes are in the bottomland spruce-poplar forest. Then both routes continue toward Tahneta Lake through an upland spruce hardwood forest, and the Northwest Route passes through a moist tundra area north of Sheep Mountain. North of Tahneta Lake, both routes continue toward Glennallen through a lowland spruce-hardwood forest, with the exception of the three miles on either side of Tolsona Creek, which are characterized as bottomland spruce-poplar forest. Glennallen to Delta Junction - West of Glennallen, the Southeast Route is within the bottomland spruce-poplar forest adjacent to the Copper River, and north of Gakona, it enters the lowland spruce-hardwood forest adjacent to the Gulkana River. The Northwest Route passes through approximately 15 miles of lowbush bog and muskeg before entering the lowland spruce-hardwood forest. Approximately 10 miles north of Sourdough, both routes enter the upland spruce-hardwood forest, and at the north end of Paxson Lake, both routes enter moist tundra. At Isabel Pass, both routes ascend into several miles of alpine tundra and barren ground, and then re-enter the moist tundra area until reaching the Delta River, approximately 10 miles south of Pump Station 10. The area adjacent to the Delta River consists of upland spruce-hardwood forest, but the surrounding area contains the alpine tundra and barren ground of the Alaska Range. As the Richardson Highway approaches the Donnelly Dome area and continues to Delta Junction, both routes descend into the lowland spruce- hardwood forest of the Tanana River basin. Commercial and Non-commercial Forest (U.S. Bureau of Land Management, Alaska State Office, Div. of Pipeline 1973) - Between Glennallen and Delta Junction, the routes are located in areas adjacent to the Trans-Alaska pipeline system (TAPS) corridor. In the Copper River basin, the forest land traversed by the TAPS corridor is non-commercial, in which no more than 20 percent of the trees were estimated to be 12 feet tall or higher, with a minimum diameter of 9LUG 1361 (08/31/89) VIII-6 nine inches at the base. This forest is adjacent to the area between Glennallen and Sourdough, Richardson Highway MP 155 to 173, MP 175 to 178, and MP 182 to 185. There are no white spruce between Paxson and Phelan Creek, and the rest of the area contains very few trees. In the Delta River valley, there are both commercial and non-commercial forests. In the commercial forest land, more than 20 percent of the trees are estimated to be 12 feet tall or higher, with a minimum diameter of nine inches at the base. The commercial forest land traversed by TAPS is adjacent to the area around the Castner Glacier, between Whistler Creek and the Black Rapids Training Site, and One Mile Creek and Ruby Creek. The non-commercial forest land is adjacent to the area between the south boundary of the Black Rapids Training Site and One Mile Creek, Ruby Creek and Richardson Highway MP 240, and Richardson Highway MP 252.5 to 257. North of the Donnelly Dome area, forest vegetation is continuous along the TAPS route to Delta Junction. Well drained forest uplands contain white spruce, white birch, aspen, and some black spruce. Flat, poorly drained forest areas contain small, scattered black spruce and larch. Both routes would require approximately the same amount of clearing, and most of the area to be cleared would be in forested land. However, based on information developed for the TAPS line, most of the forest area is described as non-commercial. Neither route would have a significant effect on land cover. Wetlands As described in the previous section, the Northwest Route passes through a moist tundra area north of Sheep Mountain, and through approximately 15 miles of lowbush bog and muskeg north of Glennallen. Between the north end of Paxson Lake and the Delta River, both routes pass through moist and alpine tundra. Site- specific location of towers can minimize impacts and construction in certain areas may have to occur when the ground is frozen due to the amount of standing water present in the open water season. Neither route would have a significant effect on wetlands. 9LUG 1361 (08/31/89) VIN-7 Fish and Wildlife The following descriptions of significant fish and wildlife species present along each route were developed from maps and information prepared by the Alaska Department of Fish and Game's Habitat Division (1985a,b, 1986a,b,c,d). Additional references are cited in each section. Fish - In the Matanuska drainage basin, both routes cross three anadromous fish streams, Granite Creek, Kings River, and Chickaloon River, which all contain chum, coho, king, and sockeye salmon. Resident species generally distributed throughout the area are arctic char, Dolly Varden, rainbow trout, and grayling. Arctic char and Dolly Varden are present in Granite Creek; arctic char, Dolly Varden, and rainbow trout are present in Kings River, and grayling are present in Hicks Creek (crossed by both routes) and Gunsite Creek (crossed by the Northwest Route). In the Copper River drainage basin, both routes cross three anadromous fish streams: Mendeltna Creek, which contains king and sockeye salmon, and Tolsona Creek and the Gulkana River, which contain king, sockeye, and coho salmon and steelhead. Between Paxson Lake and Summit Lake, the Gulkana River (crossed by the Northwest Route) contains sockeye salmon, as does Fish Creek (crossed by the Southeast Route). Resident species generally distributed throughout the area are grayling, burbot, lake trout, arctic char and Dolly Varden. Grayling are present in the Little Nelchina River, Cache Creek, Mendeltna Creek, Tolsona Creek, Moose Creek, the Gulkana River, and Haggard Creek, which are crossed by both routes. Grayling are present in Dry Creek and Gunn Creek, grayling and rainbow trout are present in Sourdough Creek, and grayling and burbot are present in Fish Creek, which are all crossed by the Southeast Route. Grayling are present in Little Woods Creek and Gillespie Creek, and grayling and burbot are present in the Gulkana River between Paxson and Summit Lakes; these streams are all crossed by the Northwest Route. In the Delta River drainage basin, there are.no anadromous fish streams crossed by either route. Resident species include grayling and round whitefish; both are present in the Delta River (crossed by the Northwest QLUG 1361 (08/31/89) VIN-8 Route), and grayling are present in Miller Creek (crossed by the Southeast Route) and Jarvis Creek (crossed by both routes). Birds - In Southcentral and Interior Alaska, the primary duck species present are surface-feeding ducks (dabblers), including mallard, pintail, green- winged teal, American widgeon, and northern shoveler, and diving ducks, including greater scaup, goldeneye (common and Barrow's), bufflehead, oldsquaw, scoter (white-winged, surf, and black), and red-breasted merganser. In Southcentral Alaska, primary dabbling species also include gadwall, and primary diving species include canvasback, harlequin, and common merganser. In Interior Alaska, primary diving species include lesser scaup and eider (Steller's, common, king, and speckled), and lesser numbers of dabblers, including gadwall, blue-winged teal, and European widgeon, and divers, including redhead, ring-necked duck, canvasback, harlequin, and merganser (hooded and common) are present. Geese in Southcentral and Interior Alaska include the Canada (lesser and cackling), greater white-fronted, and snow goose. In Southcentral Alaska, dusky Canada and tule white-fronted goose are present, and in Interior Alaska, brant, Taverner's Canada, and emperor goose are present. Geese migrate along the Delta River. Between Sutton and Caribou Creek, both routes pass through a corridor containing ducks and geese that is about three to four miles wide and extends on either side of the Glenn Highway and the Matanuska River. Between Caribou Creek and Tahneta Lake, ducks and geese are present along the upper Matanuska River and its tributaries on the south side of the Glenn Highway crossed by the Southeast Route, whereas they are not generally present in the area crossed by the Northwest Route north of Sheep Mountain. Ducks and geese are present throughout the Copper River drainage basin to the north end of Summit Lake. The area crossed by both routes from Tahneta Lake on the Glenn Highway to Hogan Hill on the Richardson Highway is a known nesting area for both dabbling and diving species. Most of this area has been rated as being low-density breeding habitat, i.e. fewer than 25 nesting ducks and nine nesting geese per square mile, although the area east 9LUG 1361 (08/31/89) VIII-9 and south of Crosswind Lake is rated as medium-density breeding habitat, i.e. slightly more than 25 nesting ducks per square miles (U.S. Air Force 1986). Mendeltna Creek from Old Man Lake to the south side of the Glenn Highway is a known fall concentration area for dabblers. North of the Alaska Range, ducks and geese are present in three areas crossed by both routes: between Ober Creek and the Richardson Highway south of Donnelly Dome; between Big Lake, Bolio Lake, and the Richardson Highway north of Donnelly Dome; and along the Delta River north of Fort Greely. The Richardson Highway between Glennallen and Sourdough is utilized as a display area by sharptailed grouse (Hemming and Morehouse, eds. 1976). Wildlife - Moose are present throughout the Matanuska River drainage basin. Between Sutton and Caribou Creek, both routes pass through a known winter concentration area extending from the north side of the river across the Glenn Highway in a corridor one to four miles wide. Immediately north of the wintering area is a known rutting concentration area in a corridor approximately a mile wide that parallels the Glenn Highway to Caribou Creek. The Northwest Route passes through this area between Pinochle Creek and Hundred Mile Lake. Moose are present throughout the Copper River drainage basin, and they move through the TAPS corridor between Glennallen and Isabel Pass year- round (Hemming and Morehouse, eds. 1976). Both routes pass through known winter concentration areas between the Mendeltna and Tolsona Rivers, and the Gulkana and Gakona River drainage basins between Sourdough and Gillespie Creek. The Southeast Route passes through known winter concentration areas around the Nelchina River south of the Glenn Highway near Snowshoe Lake, from Glennallen to Gulkana in a two-mile wide corridor along the Copper River, and from Gulkana to Sourdough in an area that extends from the west side of the Gulkana River to the Gakona River drainage. Both routes extend through a known calving concentration area between the Mendeltna and Tolsona Rivers; the Northwest Route borders an area in the West and Middle Fork drainages of the Gulkana River west of the Richardson Highway between Sourdough and the northwest end 9LUG 1361 (08/31/89) VIII-10 of Paxson Lake, and the Southeast Route borders an area east of Roundtop Mountain and the Richardson Highway. Both routes pass through a known rutting concentration area extending eight miles west of Tolsona Lake immediately north of the Glenn Highway. Moose are present throughout the Delta River drainage basin. Both routes pass through a known winter concentration area on either side of the Delta River and the Richardson Highway between Black Rapids and Big Delta. Caribou are present throughout the Copper River drainage basin and on the south side of the Alaska Range. The entire area from Gunsight Mountain on the Glenn Highway to Meiers Lake on the Richardson Highway is a known winter concentration area. They migrate across the TAPS corridor from Glennallen to Isabel Pass between March 15 and May 15, and October 1 and January 1 (Hemming and Morehouse, eds. 1976). Caribou are present in an area east of the Delta River between Black Rapids and Donnelly Dome. Dall Sheep are present in the Talkeetna Mountains, Sheep Mountain, and the Alaska Range. The proposed transmission line routes will be located in corridors at lower elevations where sheep are not generally present. However, low-flying aircraft or helicopters can disrupt lambing (U.S. Bureau of Land Management, Alaska State Office, Div. of Pipeline 1973). There are brown bear concentrations between Paxson and Summit Lakes and between Upper Fish Lake and the mouth of Fish Creek in Summit Lake (Hemming and Morehouse, eds. 1986). Brown bear are present throughout the Delta River drainage basin. Along the Delta River north of Black Rapids, the Northwest Route passes through a known spring concentration area, and a known summer concentration area where bears feed on berries. Bison are present from Black Rapids to Big Delta, they calve in an area that extends along the Delta River from Black Rapids to an area west of Pump Station 9,.and they migrate across the TAPS corridor from March 15 to April 15 and July 15 to October 15 (Hemming and Morehouse, eds. 1976). Although relatively few streams contain anadromous and resident fish, both QLUG 1361 (08/31/89) VIN-1 fl routes pass through habitat supporting large numbers of birds and wildlife. There is a potential for loss of birds due to collision with towers or conductors, which is discussed in the next section. There is also a potential for electrocution; however, the wide spacing of the conductors on 230kV transmission lines (approximately 22 to 25 feet) virtually eliminates the possibility of a bird contacting two wires simultaneously. The primary mitigative measure during construction would involve timing for specific segments to avoid critical use periods. Construction windows required for anadromous fish stream crossings and recommended for critical wildlife periods are shown in Table 18. Threatened and Endangered Species The American peregrine falcon is designated an endangered species, whereas bald eagles and trumpeter swan are considered to be “species of concern". Both routes contain eagle nests, and exact nesting sites should be avoided. The potential for collisions of migrating birds with transmission lines is a major concern. The following descriptions of bald eagles and trumpeter swan were derived from maps and information prepared by the Alaska Department of Fish and Game's Habitat Division (1985b, 1986b). Information on peregrine falcon was obtained from the U.S. Fish and Wildlife Service. Bald Eagle - Bald eagle nests are documented from Glennallen to Paxson along the Copper and Gulkana Rivers. The Southeast Route passes in the vicinity of two nests near the Copper River between Glennallen and Gakona, and one nest near the highway between Gakona and Sourdough. The Northwest Route passes by one nest at the Gulkana River near Sourdough, three nests between Sourdough and Paxson, and one nest where it first crosses the Delta River. During an October route reconnaissance trip, an eagle nest was observed on the south side of the Glenn Highway at MP 148. The habitat maps should be considered representative, as U.S. Fish and Wildlife Service data shows that there are between 60 and 70 nesting pairs along the Gulkana River between Gulkana and Paxson. The nesting period is from late March until September 1. There are relatively few eagles between Isabel Pass and Delta Junction, as the Delta River is poor eagle habitat due to the lack of 9LUG 1361 (08/31/89) Vill-12 nest sites. Trumpeter Swan - Trumpeter swan are present at Tatondan Lake, which is on the south side of the Matanuska River (Southeast Route Mile 34 from Sutton). They are distributed throughout the Copper River drainage basin, and the area from Snowshoe Lake on the Glenn Highway to Hogan Hill on the Richardson Highway is a Known concentration area for nesting and brood rearing. It is considered high-density breeding habitat, and the population has increased; about 2,000 swan nest throughout the Nelchina Plateau, or about one or more nesting swan per square mile (U.S. Air Force 1986). Trumpeter swan nest from breakup to mid-September. The U.S. Fish and Wildlife Service conducts surveys every five years, and the last survey was conducted in 1985. Exhibit 1 shows trumpeter swan nesting areas crossed by the routes. No nesting areas were documented north of Hogan Hill in the vicinity of the routes. The U.S. Fish and Wildlife Service believes that the Southeast Route between Glennallen and Sourdough would impact less nesting habitat than the Northwest Route. Peregrine Falcon - U.S. Fish and Wildlife records indicate that the American peregrine falcon, an endangered species, migrates from east to west between Eureka Roadhouse and Sutton in spring, as do other raptors. There are no records of falcon nesting along the two routes, but this area, especially the portions away from the highways, is not normally surveyed. Collisions - Collision potential was a major consideration in the environmental analysis of the proposed over-the-horizon backscatter radar (U.S. Air Force 1986), and, as the analysis was based on data from overhead transmission lines, the following information is relevant to this study. Collisions with overhead transmission lines are more likely to occur in poor. lighting conditions and bad weather, including fog. The potential for collision increases when transmission lines cross migration corridors or breeding habitat, or when they are perpendicular to major flyways. Large-bodied birds (swan, raptors, and eagles) and birds with high wing loads (ducks) are the species most likely to be involved in collisions. 9LUG 1361 (08/31/89) VIN-13 The area around Glennallen is a major migration corridor and contains breeding habitat for an estimated 20 to 25% of the world's trumpeter swan population. Younger birds, which have poor flight control, are more susceptible to collision. Collision potential can be reduced by alignments that avoid open water bodies, wetlands, river crossings, major flyways, and nesting sites and that parallel the prevailing wind direction and avoid areas of known ground fog. Visible markers can be placed on transmission lines. In 1988, an avian field survey program was conducted to obtain detailed information on trumpeter swan and other species in the vicinity of the proposed backscatter radar site at Gulkana (Cooper et al. 1988). Investigators found that during peak migration (late April/early May), nocturnal movement was four times greater than movement during the day. Most swan, ducks, and geese flew higher than 100 feet above ground level during daylight hours on clear days, but flight altitude was significantly lower when the cloud ceiling dropped below 500 meters (1,641 feet). The Southeast Route between Glennallen and Sourdough has a greater potential for encountering eagle nests, but it will pass by fewer trumpeter swan nesting areas than the Northwest Route between Glennallen and Sourdough. The Alaska Department of Fish and Game and the U.S. Fish and Wildlife Service recommended against construction during the nesting period, between May 1 to mid-September. Both routes have a high potential for collisions, and the effect is considered to be significant. The results of the 1988 avian field survey program suggest that marking transmission lines would not reduce the collision potential during migration, as most movement occurs during the night. However, it could prove beneficial for localized movement during the nesting season. Although more towers may be required, presenting some additional barriers, hanging the conductors at heights below 100 feet reduces the potential for collision during migration. Archeological and Historic Sites The Alaska Heritage Resources Survey (AHRS) currently lists 154 cultural resource sites along the proposed transmission line corridor but not all are crossed by the two routes studied. 9LUG 1361 (08/3189) VIN-14 Known locations within and adjacent to the proposed routes tend to be clustered along existing highways and secondary roads. As reflected by the 26 references contained in the Appendix, most sites have been identified during project-specific archaeological surveys, and most of the projects have been lineal in nature (highways and pipelines). Site locations recorded away from the road are principally discoveries made during both project specific surveys and avocational or academic investigations. The AHRS also list includes the approximate locations of reported but unverified historic features. Few intensive archaeological surveys have been conducted anywhere in the area crossed by the routes. Previous investigation strategies have focused on distinctive landforms and exposed surfaces. Consequently, the present understanding of cultural resources is based on data obtained from surface observations, such as lithic flake scatters at prehistoric hunting sites and structural remains at settlements associated with early historic period regional economic development. A consideration of the types, settings, and distributions of known cultural resource sites suggests that the potential for encountering additional sites within either of the two proposed routes during construction is extremely likely. This is especially true for route sections that must of necessity pass through constricted valleys or across marshy areas where avoidance options are limited. Construction of either route would have an impact on archeological and historic sites, but the impact can be mitigated by pre-construction surveys and clearances. Mitigation is also possible during construction by moving final tower locations along the alignment to avoid sites discovered during construction. Land Use The routes traverse or are adjacent to areas of recreational and subsistence use. There are no national parks, forests, or refuges, but there are state and federal recreation sites and a state moose range. A state critical habitat area has been proposed for trumpeter swan protection, and there are two wild and scenic rivers. Scenic highway studies have been conducted. Fishing - The Alaska Department of Fish and Game's Habitat Division (1985b, 1986d) has documented sport fishing streams. Kings River (both routes) is fished 9LUG 1361 (08/31/89) Vill-15 for salmon, arctic char, Dolly Varden, and rainbow trout. Mendeltna Creek (both routes) is fished for sockeye salmon and grayling. Sourdough Creek (Southeast Route) is fished for grayling and rainbow trout. Fish Creek (Southeast Route) and the Gulkana River between Paxson Lake and Summit Lake (Northwest Route) are fished for grayling and burbot. Grayling streams include Hicks Creek, the Little Nelchina River, Cache Creek, Moose Creek, Dry Creek (Southeast Route only), the Gulkana River, Gillespie Creek (Northwest Route only), Gunn Creek (Southeast Route only), the Delta River (Northwest Route only), and Miller Creek (Southeast Route only). Hunting - Recreational hunting occurs throughout the area, and includes the following species (Battin 1987): Moose - Nelchina and Upper Susitna Rivers (Unit 13), 840 moose harvested in 1984; Matanuska Valley (Subunit 14A), annual harvest of 500/year, including 340 bulls; Tanana Flats (Subunit 20A), harvest has been increasing since 1978. Caribou- Nelchina herd (Units 13 and 14 except 14C), 1,700 hunters, including permit holders and subsistence users, harvest over 1,000 annually. Bison - Delta area (Units 20A, 20D), over 11,200 hunters apply for 55 permits for one bison/permit. Spruce grouse - Units 13 and 14, hunting mainly occurs from roads and trails. Willow Ptarmigan - accessible by road, especially along the Richardson Highway from Glennallen to the Alaska Range and Black Rapids to Paxson. Other species - other species harvested in the study area include black and brown bear, dall sheep, gray wolf, snowshoe hare, and waterfowl. Subsistence - Activities include hunting, fishing, trapping, and berry harvesting, as well as use of wood for fuel and construction material and water for drinking and food processing. Although residents in all communities participate in these activities, communities adjacent to the routes are not economically dependent on these resources (McMillan and Cucarrese 1988, Stratton andGeorgette 1984, 9LUG 1361 (08/31/89) VIII-16 U.S. Bureau of Land Management and U.S. Army Corps of Engineers 1987). Delta Junction is not classified as a rural subsistence use area by the State Boards of Fish and Game. In Paxson, Chickaloon, Matanuska Glacier, Sheep Mountain, Lake Louise and Sourdough, the primary subsistence activity is hunting, whereas in Gakona, Gulkana, and Glennallen, the primary subsistence activity is fishing. Public Lands - Most of the public lands traversed by the routes do not have specific designations, such as parks, forests, or refuges. The Alaska Department of Natural Resources, in cooperation with the Alaska Department of Fish and Game and the Matanuska Susitna Borough, has developed area plans for the Susitna, Copper, and Tanana basins. The plans contain management objectives and current and proposed land uses. Proposed expansions of existing recreation areas were considered in route selection and are discussed below. Other proposed uses, such as creation of new recreation sites or trails, have no time frame for implementation, and are not considered in the following discussion. However, proposed uses may have to be considered prior to granting of rights- of-way. State Recreation Areas - There are seven existing sites managed by the Alaska Div. of Parks and Outdoor Recreation in the vicinity of the routes (Alaska Div. of Parks 1982a). 1. King Mountain State Recreation Site - This site is located on the south side of the Glenn Highway approximately 30 miles north of Palmer and 110 miles southwest of Glennallen. Both routes are on the other side of the highway, but the Southeast Route would be visible (see discussion under Aesthetics). 2. Bonnie Lake State Recreation Site - Located on the south side of Bonnie Lake, approximately one mile north of the Glenn Highway, this site is about 35 miles east of Palmer and 105 miles west of Glennallen. There is a proposal to transfer this site to the Matanuska-Susitna Borough. The Northwest Route crosses the access road, but it is below the point where the access road turns into the site. 3. Long Lake State Recreation Site - Long Lake is adjacent to the south side of the Glenn Highway about 40 miles east of Palmer and 100 miles west of 9LUG 1361 (08/31/89) VIUl-17 Glennallen. From west to east, the site encompasses both sides of the highway for about one mile and is immediately south of the highway for a mile. Proposed acquisition would expand the site one mile to the south, to the Matanuska River. The Northwest Route would be visible from the west end of the lake. The Southeast Route crosses through the proposed expansion. 4. Matanuska Glacier State Recreation Site - This site, located about 55 miles east of Palmer and 85 miles west of Glennallen, extends in an east-west direction on either side of the Glenn Highway for approximately one mile and south to the Matanuska River. The Southeast Route crosses the highway twice to avoid passing through this area. The Northwest Route, following the highway, passes through the area. 5. Little Nelchina State Recreation Site - This site is located on the Glenn Highway about 60 miles west of Glennallen and 80 miles northeast of Palmer. Proposed acquisition would expand the site from 20 acres to 640 acres (one square mile), encompassing an area approximately a mile long and one-half mile wide on either side of the Glenn Highway. Both routes are outside the area of proposed expansion. 6. Tolsona Creek State Recreation Site - This site is located about 13 miles west of Glennallen on the Glenn Highway. Both routes are near the site, and may be visible from the northern and southern ends of the site. 7. Dry Creek State Recreation Site - This site is located across the Richardson Highway from the Gulkana Airport. The Northwest Route is adjacent to the western border. Federal Recreation Areas - There are two federal recreation areas managed by the U.S. Bureau of Land Management. 1. Sourdough Creek Campground - (Richardson Highway MP 147.6). The campground is adjacent to Sourdough Roadhouse National Historic Landmark, and it is located approximately half a mile downstream of the 9u 5 1361 (08/31/89) VIN-18 Northwest Route Gulkana River crossing. 2. Paxson Lake Wayside - (Richardson Highway MP 179.4) Both routes are located on the east side of the highway. The Northwest Route would be visible from the wayside. Matanuska Valley Moose Range - The Matanuska Valley Moose Range was established by the Alaska State Legislature in 1984. The management objective is to “maintain, improve and enhance moose populations and habitat and other wildlife resources of the area and to perpetuate multiple use of the area, including fishing, grazing, forest management, hunting, trapping, mineral and coal entry and development and other forms of public uses compatible with these purposes” (Alaska Dept. of Natural Resources, Alaska Dept. of Fish and Game, and Matanuska Susitna Borough 1985). The Northwest Route passes through this area for approximately six miles between the Kings River and the Chickaloon River. As right-of-way clearing can enhance moose habitat, the location of the route in this area would not have a significant impact. Trumpeter Swan Critical Habitat Area - The Northwest Route crosses three miles of state land north of Glennallen that is being considered for designation as a critical habitat area for the protection of trumpeter swan. The area is currently managed to protect swan nesting habitat, as follows (Alaska Dept. of Natural Resources and Alaska Dept. of Fish and Game 1986). Overland access and other activities requiring permits are prohibited between May 1 and August 31 unless the Alaska Department of Fish and Game determines that the activity is compatible or the Alaska Department of Natural Resources determines that it is not feasible or prudent to prohibit the activity. In those cases, the Alaska Department of Fish and Game can require that activities be prohibited within one-quarter mile of current or potential swan nesting or staging ponds, marshes, or lakes. Due to the amount of standing water present during this time period and the potential for encountering nesting sites, surveys would have to be conducted prior to the summer construction season. Construction in certain areas may have to occur when the ground is frozen. Options for reducing collision potential were previously discussed under Threatened and Endangered Species. ILUG 1361 (08/31/89) VIll-19 Wild and Scenic Rivers - The Northwest Route spans two wild and scenic rivers, the Gulikana River and the Delta River. U.S. Bureau of Land Management objectives would preclude construction in these areas unless it were demonstrated that no feasible alternatives were available. Scenic Highways - The Alaska Land Use Council (1983) conducted a study to determine the desirability of creating a Denali National Scenic Highway between Denali National Park and Preserve and Wrangell St. Elias National Park and Preserve. In addition to the Denali Highway, the Richardson Highway was included. As there was overwhelming public opposition to a federal scenic highway designation, and as the Denali Highway can be managed for natural, scenic, and recreational values under existing federal and state authority, the study group recommended against including the highway in the national system. The Richardson Highway did not have sufficient adjacent federal land, and was therefore not appropriate for designation. The area traversed by the proposed routes is utilized extensively for hunting, recreational and subsistence and fishing. Management objectives on state and federal lands are directed at protection of fish and wildlife and enhancement of recreational values. The Northwest Route crosses about six miles of the Matanuska Valley Moose Range, three miles of state land proposed as trumpeter swan critical habitat area, and two wild and scenic rivers. Both routes have been aligned outside of existing recreation sites. The major impact would be the effect on scenic values, which is discussed in the following section. Aesthetics A weathered steel X-tower is planned, except for single pole steel towers in either highway right-of-ways or for double circuit use. The brown, weathered steel is less visible against forested slopes and unforested, snow-free slopes. Lower towers with shorter spans can be used in areas with low trees. However, against snow covered, unforested slopes, the towers are highly visible. The 48-inch diameter TAPS line was constructed in above- or below-ground modes, depending on soil conditions. In the above-ground mode, it is elevated between six 9LUG 1361 (08/31/89) VINl-20 and 15 feet (top height) above the ground by vertical supports. Due to its size, it presents a greater visual impact than an overhead transmission line at an equivalent distance, even though it is lower in profile. Its location relative to the proposed routes is noted in the discussion, and it is shown on the 1:63, 360 route maps as above-ground (solid line) or below-ground (dashed line). Due to the level of concern expressed during agency contacts and in area management plans about protecting scenic values as seen from highways, this discussion focuses on the visibility of the routes from the Glenn and Richardson Highways. Sutton to east side Chickaloon River - Both routes generally pass through wooded areas. From Sutton to the King River, the Northwest Route (NW Mile 2.6 to 6.8 from Sutton) is located on a high terrace behind a ridge and is not visible from the highway, and then it continues to the northeast and east in the vicinity of the Chickaloon trail (NW Mile 6.8 to 11.4 from Sutton). The Southeast Route (approximately SE Mile 3 to 5 from Sutton) is near the north side of the Glenn Highway behind homes. After crossing the King River, the Southeast Route (SE MP 6.3 to 7.5 from Sutton) ascends a hill for about a mile, and is visible from the Glenn Highway. It is also visible on the top of a ridge (SE Mile 13.7 from Sutton) from the King Mountain State Recreation Site. The Southeast Route is visible crossing both the Chickaloon River and the Glenn Highway (SE Mile 17.5 to 18.7 from Sutton). East side Chickaloon River to west side Caribou Creek - Both routes generally continue through wooded areas, although the Northwest Route traverses several miles of bare slope (NW Mile 24.7 to 27 from Sutton). Between SE Mile 18.7 and 22 from Sutton, the Southeast Route is adjacent to the south side of the Glenn Highway, and it then extends through the proposed extension of the Long Lake State Recreation Site. It continues adjacent to the Glenn Highway (SE Mile 28.3 to 32 from Sutton) and crosses the highway twice (SE Mile 34, 36.5 from Sutton), as well as Hicks Creek. The Northwest Route is also visible where crossing Hicks Creek. From NW Mile 36.5 to 42.9 from Sutton, it was adjacent to the Glenn Highway, which passes through the Matanuska Glacier State Recreation Site but this route has been revised in the suggested route. The Southeast Route crosses the highway twice to pass north of the Matanuska 9LUG 1361 (08/31/89) Vill-21 Glacier State Recreation Site, and then crosses twice more before crossing Caribou Creek. West side Caribou Creek to Tahneta Lake - Both routes generally continue through wooded areas. The Southeast Route crosses Caribou Creek at SE Mile 44.3 from Sutton, and is more visible to north-bound traffic, where it can be seen adjacent to the highway east of Caribou Creek, than it is to south-bound vehicles descending toward the west side of Caribou Creek. It is adjacent to the south side of the highway between SE Mile 45.8 and 46.8, and 55 and 57.5 from Sutton. Otherwise it is a quarter mile south of the Glenn Highway. Between Glenn Highway MP 114.5 and 120, the Glenn Highway is above treeline, but the Southeast Route remains in the woods. The Northwest Route crosses Caribou Creek about 1.5 miles from the highway, and continues northeast and east around Sheep Mountain to Tahneta Lake. The Southeast Route is more visible in the Tahneta Pass area than the Northwest Route. Tahneta Lake to Glennallen - Other than the area around Tahneta Pass, both routes generally continue through wooded areas. The terrain is generally flat, and trees are smaller, but both routes are one quarter mile or more from the highway. Both routes are adjacent to the Little Nelchina State Recreation Site, which is more heavily wooded, and the Tolsona Creek State Recreation Site. The Northwest Route crosses the Glenn Highway to access the substation at Pump Station 11. The routes are most visible where the highway ascends or descends perpendicular to the terrain, especially between Glenn Highway MP 134 and the Little Nelchina River (NW Mile 70.7 to 71.2; SE Mile 70.9 to 73.8 from Sutton). The area between Tolsona Creek and Glennallen has a very gradual change in elevation, so the routes are not as noticeable. Glennallen to Gakona Junction - The Southeast Route crosses both the Richardson and Glenn Highways. It also crosses the Gulkana River, and would be visible to recreation users. The Northwest Route is adjacent to the west border of the Dry Creek State Recreation Site but not visible from the campground area. Gakona Junction to Sourdough - The southwest route is one quarter mile or more from the Richardson Highway, and the terrain is generally flat and wooded. It is closest to the highway between SE Mile 27.7 and 30.9 from 9LUG 1361 (08/31/89) VINl-22 Glennallen. The Northwest Route is about one mile east of TAPS in open terrain between NW Mile 7 and 23.3 from Glennallen. Sourdough to Paxson - The Northwest Route is visible between Sourdough and Paxson and crosses the highway three times, at NW Mile 53, 57.5, and 62 from Glennallen. As shown on the 1:63-360 maps, the TAPS line is buried in a one- mile segment north of the Gulkana River at Sourdough, and it continues above ground for a_ three-mile segment, which is visible one half mile west of the Richardson Highway. In this area, the Northwest Route (NW Mile 33.3 to 37 from Glennallen) is located halfway between the TAPS line and the highway and the added visual impact would be minimal. The TAPS line is then buried, crosses the highway underground, and remains underground for 11 of the 13 miles around Hogan Hill. North of Hogan Hill, the above-ground segment of the TAPS line is generally more than one-half mile east of the Richardson Highway, and the Northwest Route north of NW Mile 62 is between the highway and TAPS, half a mile from each. North of SE Mile 40.7, the Southeast Route is more than a mile from the highway and east of the TAPS line. Paxson to Black Rapids - The Northwest Route crosses the highway at NW Mile 74.5 from Glennallen, and the southeast crosses the highway twice at SE Mile 83.7 and 86.7 from Glennallen. There are no trees between Paxson Lake and Phelan Creek. The Northwest Route is visible on the west side of Summit Lake from both the Richardson and Denali Highways. Between the south end of Summit Lake through Isabel Pass to the Phelan Creek floodplain, the TAPS line is buried, except for a one-mile segment east of the Northwest Route and adjacent to Richardson Highway where it crosses Phelan Creek, and a five-mile segment east of NW Mile 90.1 to 95.5 from Glennallen. Both routes will be visible throughout this area, which extends approximately 15 miles. Both routes will be visible in the Delta River valley as it ascends into Black Rapids. The TAPS line is buried, except for a three-mile segment west of the Richardson Highway and east of the Northwest Route around the Castner Glacier. Black Rapids to Delta Junction - North of Black Rapids, the Southeast Route is east of TAPS and more than a mile away from the Richardson Highway between SE Mile 106.7 and 120.7 from Glennallen, and it crosses the highway at SE Mile 126.7. The Northwest Route crosses the highway four times, at NW Mile 117, QLUG 1361 (08/31/89) Vill-23 118, 122, and 136 from Glennallen. Both routes are east of Donnelly Dome, whereas the TAPS line is on the west. North of Donnelly Dome, TAPS is buried to Delta Junction on the east side of the Richardson Highway, and both routes continue into Delta Junction on the west side. There are relatively few trees between Richardson Highway MP 247 and the low areas south of Delta Junction. However, once the lines reach the flat areas relatively thick stands of trees exist to heights of 30 to 40 feet. The following visual impact zones were identified prior to TAPS construction (U.S. Bureau of Land Management, Alaska State Office, Div. of Pipeline 1973): Richardson Highway MP 160 (Haggard Creek) Gunn Creek to Isabel Pass Richardson Highway MP 205 and 212 (Phelan Creek) Richardson Highway MP 245 (State of Alaska wayside) In the Denali National Scenic Highway study, the Alaska Land Use Council (1983) concluded that scenic resources along the Richardson Highway were of moderate value, as much of the highway is enclosed by the spruce/hardwood forest. The area around Paxson has high scenic value, with views of the Wrangell and Chugach Mountains and the Alaska Range. The Denali Highway has high scenic value, partly because there are few trees to obstruct views. Between Sutton and Glennallen,the Northwest Route is less visible from the highway, with only one highway crossing, whereas the Southeast Route has seven crossings. Between Sourdough and Delta Junction, the Southeast Route is less visible with only three highway crossings, whereas the Northwest Route has eight crossings. Between Glennallen and Sourdough, the Northwest Route would not be visible from a highway, but it would be constructed in an open area, whereas the Southeast Route, adjacent to the highway, would be screened. The Southeast Route crosses the highway twice in this segment. Although TAPS presents a visual barrier, it is generally buried in the areas of greatest visual impact, and does not provide an effective screen. 9LUG 1361 (08/31/89) VIN-24 Social Impacts Construction of a transmission line is anticipated to require small work crews over short periods of time. It is unlikely that there would be a requirement for new housing, schools, or other services. Right-of-way clearing and equipment operation in tower placement and cable stringing could result in short-term employment opportunities for residents of communities in the vicinity of the route. Construction of either route would require installation of air navigation markers and updating of air navigation charts. The routes are aligned to avoid airstrips. Construction There would be no requirement for borrow sources, and excavated material from tower foundation placement, if any, would be left in place. Noise from construction vehicles would be minimal, as most of the line is more than half a mile from highways. Use of helicopters may generate more noise, but the duration would be short. Vehicle emissions would be minimal, but if brush were burned in place, there would be smoke for a short period of time. If brush were chipped, there would be no smoke. The Northwest Route would have nine highway crossings, and the Southeast Route, 12. However, traffic disruption would be minimal. Operation As discussed in the description at the beginning of this section, at voltages of 230kV or lower, electromagnetic interference is usually considered minor or insignificant. The following figures show the electric field strength and magnetic field strength produced by a 230kV transmission line. Various State requirements were reviewed. The most stringent guidelines would limit the field at the edge of the right of way to: Electric Field Strength 1.6kv/m Magnetic Field Strength 100mg 9LUG 1361 (08/31/89) VINI-25 The Electric Field Strength and the Magnetic Field Strength are considerably below these maximum values at the edge of the 125 foot right of way as shown on the following Figures. These curves were developed for horizontally spaced conductors and the levels of Electrical Field Strength and Magnetic Field Strength at ground levels is obviously highest for conductors which are at the minimum height above the ground. At 250 feet from the center of the right of way, the level of Electric Field Strength and Magnetic Field Strength are insignificant and therefore, an attempt was made to maintain the center of the right of way 250 feet from buildings. Although a narrower right of way would be permissible with a single pole structure with the conductors vertically aligned, it was concluded that rerouting in the area along the highway near Glacier View, as shown on the route maps, would be advisable to mitigate any concerns relative to the close proximity to houses in this area. 9LUG 1361 (08/31/89) VINl-26 ee COO Coorg CCC COC COC CO er TCE ea BCC PUSAN op PRS 110 130 150 170 DISTANCE FROM STRUCTURE CENTER (FEET) 70 TH — 230 —— AT GIVEN CONDUCTOR HEIGHT ELECTRIC FIELD STRENGTH (SSBLSN/AN) HLONSYLS CISL oriLoa2 60 Ft. A 50 Ft. ° 40 Ft. + 3O Ft. O LET Te LETTE PELLET EET LE gp se LTT ALT PT TTT LE PL TOLUCA CECE CE LT a MU 110 «130 «6150 6170 70 CONDUCTOR HEIGHT 30 50 25 2c DISTANCE FROM STRUCTURE CENTER (FEET) 15 MAGN ERIC eon STRENGTH 10 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.08 0.08 0.07 0.06 0.05 0,04 0.03 0.02 0.01 (¥v 0001/SSNV9) HLONAYLS G14 OLLENOWN 60 Ft. A 50 Ft. ° 40 Ft. + 30 Ft. a Anticipated maintenance involves an inspection as often as every other month, and a more thorough inspection would be conducted less frequently. Inspections would be conducted from the air, with follow-up on the ground if problems were detected. When right-of-way maintenance requires vegetation control, the impact on wildlife utilizing the cleared right-of-way would be minor if manual methods were used. Limiting right-of-way access is a potential problem. Portions of the right-of-way would receive public use. The potential for increased public use is greatest in areas where no trails currently exist and in popular hunting and fishing areas. Each landowner would have to be consulted for right-of-way requirements. In summary, due to the proximity of the Northwest and Southeast Routes, most environmental factors would be equally impacted by either route. There would be no impact on water quality, floodplains, or fish from construction and operation of either route. There would be no social or construction impacts, and impacts from operation would be minor. There would be no significant impact on land cover. The Northwest Route crosses more wetlands than the Southeast Route, but there would be no significant impact if towers were sited carefully and if construction occurred in winter for those areas containing standing water. Both routes pass through habitat supporting large numbers of birds and wildlife. The primary mitigative measure during construction would involve timing for specific segments to avoid critical use periods. The Northwest Route crosses more trumpeter swan nesting habitat than the Southeast Route between Glennallen and Sourdough, but the Southeast Route has a greater potential for encountering eagle nests. After the transmission line were constructed, there would be a potential for collisions. Studies conducted in 1988 documented that swan, geese, and ducks flew higher than 100 feet above ground level on clear days during migration. Reducing conductor height below 100 feet in migration and waterfowl use areas would reduce collision potential. Archeological sites along the corridor containing both routes can be avoided by tower alignment. The area with the greatest potential for impact is between Paxson Lake and Donnelly Dome, where the corridor is in a restricted valley. The Northwest Route crosses six miles of the Matanuska Valley Moose Range, three QLUG 1361 (08/31/9°: VIN-29 miles of area proposed as a Trumpeter Swan Critical Habitat Area, and two wild and scenic rivers. The rivers could not be crossed unless no other feasible alternative were available. The major impact encountered is the effect on scenic values. Between Sutton and Glennallen, the Northwest Route is less visible from the highway, with only one highway crossing. Between Sourdough and Delta Junction, the Southeast Route would be less visible, with three highway crossings. Between Glennallen and Sourdough, the Northwest Route would not be visible from the highway, but it would be in an open area, whereas the Southeast Route would be screened. The Southeast Route crosses the highway twice in this segment. From a visual perspective the Southeast Route is not acceptable. To reduce visual impacts and avoid wild and scenic rivers, the route suggested for further study would follow the Northwest Route from Sutton to Glennallen, and the Southeast Route from Sourdough to Delta Junction. Between Glennallen and Sourdough, visual, waterfowl, and land management concerns should be evaluated further before either route is eliminated from consideration. 9LUG 1361 (08/31/89) VIlI-30 IX. ENVIRONMENTAL EVALUATION SUGGESTED ROUTE POWER Engineers, Incorporated IX ENVIRONMENTAL EVALUATION SUGGESTED ROUTE A route was suggested for more detailed study. This route provides the most feasible right-of-way to acquire and permit while minimizing environmental impacts. It must be recognized that not all of the routes selected have the least environmental impact, when a significant part of the criteria for selection was the ease of obtaining the right-of-way. Using this process, the Northwest Route was selected until a point just south of Sourdough on the Richardson Highway. Due primarily to conflicts with the Gakona and Delta River north of Sourdough, and the less desirable visual effects of the Northwest Route in this area, it is proposed that the Suggested Route cross the Gakona River and follow the route on the east side of the Richardson Highway, north of Sourdough. The route suggested for the detailed feasibility study crosses less than 5 miles of private land, some of which are coal leases, and 36.4 miles of Ahtna land. Discussion of Environmental Factors - Suggested Route Information on each environmental factor presented in Section VIII is discussed in more detail for the Suggested Route. The potential impact of constructing and operating these transmission facilities in the Suggested Route is assessed. Water Quality Based on examination of 1:63,360 maps, 132 stream crossings have been identified. Between Sutton and Glennallen, there would be 74, and between Glennallen and Delta Junction, there would be 57. For all stream crossings, towers would be located with adequate setbacks from either side of stream banks. If the conductors were strung either after freeze up utilizing track-mounted cable stringing equipment (when stream beds would be protected by ice cover), or by helicopter, there would be no impact to water quality. If the conductors were strung during the open water season, cable stringing operations would be timed to avoid stream crossings during periods critical for fish 9LUG 1361 (08/31/89) IX-1 utilization, as required by the Alaska Department of Fish and Game. In general, streams may be crossed after freeze up. If the streams were not frozen, there would be some disturbance of bottom sediments and temporary degradation of water quality. Degradation would be less evident in glacial streams. Buffers on either side of streams would prevent erosion or sediment flow into streams. Site clearing would be required for the new substation near Gakona. As these project facilities would be located on relatively flat terrain, clearing operations would not result in significant erosion or sediment flow into streams. Although there would be a short-term increase in sedimentation resulting from cable-stringing during the open water season, impacts on water quality are expected to be minor and temporary. Floodplains There are no floodplain crossings along the Suggested Route. Land Cover The right-of-way would be 125 feet wide. Clearing along the right-of-way would require the cutting of and removal of all trees in an area 50-feet wide, and additional clearing as necessary to maintain minimal electrical clearances. Clearing required for the new right-of-way would have no significant impact on land cover, as most of the area is considered non-commercial forest. Once trees were cleared and cable stringing operations were complete, the remaining vegetation would be able to reestablish itself. Periodic clearing would be required. Wetlands The Suggested Route passes through a moist tundra area north of Sheep Mountain, and through approximately 15 miles of lowbush bog and muskeg north of Glennallen. Between the north end of Paxson Lake and the Delta River, it passes through moist and alpine tundra. Site-specific location of towers can minimize 9LUG 1361 (08/31/89) IX-2 impacts, and construction in certain areas may have to occur when the ground is frozen, due to the amount of standing water present in the open water season. There would be no significant effect on wetlands. Fish and Wildlife Fish - The Alaska Department of Fish and Game's Habitat Division (1985b, 1986c,d) has identified the presence of anadromous fish in 7 streams crossed by the Suggested Route, and resident species in 17 streams. The U.S. Bureau of Land Management has data documenting resident species in Delta River tributaries (U.S. Bureau of Land Management and U.S. Army Corps of Engineers 1987). Granite Creek, Kings River, and Chichaloon River contain chum, coho, king, and sockeye salmon; Mendeltna Creek contains king salmon; Tolsona Creek and the Gulkana River contain steelhead and king, sockeye and coho salmon; and Fish Creek contains sockeye salmon. A total of 27 streams contain resident species. Grayling are present in Hicks Creek, Gunsite Creek, the Little Nelchina River, Cache Creek, Mendeltna Creek, Little Woods Creek, Tolsona Creek, Moose Creek, the Gulkana River, Haggard Creek, Gunn Creek, Miller Creek, and Jarvis Creek. Dolly Varden and arctic char are present in Granite Creek, and Dolly Varden, arctic char, and rainbow trout are present in Kings River. Grayling and rainbow trout are present in Sourdough Creek, and grayling and burbot are present in Fish Creek. Grayling and whitefish are present in the following Delta River tributaries: Phelan Creek, Miller Creek, Castner Creek, Michael Creek, Flood Creek, Whistler Creek, Boulder Creek, Gunnysack Creek, Darline Creek, Bear Creek, and Ruby Creek. There would be no significant construction impacts on fish during cable stringing operations. Stream crossings would be made either when ice is present, or during the open water season within construction windows required by the Alaska Department of Fish and Game. Granite Creek, Kings River, Chickaloon Creek, and the Mendeltna and Tolsona Rivers can be crossed between May 15 and July 15, and during winter when ice cover is present. The Gulkana River at Sourdough can be crossed from April 1 to mid-May. Haggard Creek can be crossed from November 1 to April 30, and Fish Creek and Gunn Creek can be 9LUG 1361 (08/31/89) IX-3 crossed from mid-August to mid-May. Birds - The distribution of ducks and geese, as documented by the Alaska Department of Fish and Game's Habitat Division (1985b, 1986b), was presented in Section Vill. The Suggested Route crosses an area in the Copper River basin rated as low-density breeding habitat, described as fewer than 25 nesting ducks and 9 nesting geese per square mile (U.S. Air Force 1986). Between Tahneta and the south side of the Gulkana River, the route would be constructed during winter, so there would be no interference with nesting activities. North of the Gulkana River to the area adjacent to Hogan Hill, construction could be timed to avoid the nesting period (between breakup and late June). There is a potential for collision, especially in the Copper River basin, which is discussed in Threatened and Endangered Species. Wildlife - The distribution of moose, caribou, dall sheep, brown bear, and bison, as documented by the Alaska Department of Fish and Game's Habitat Division (1985a, 1986a) and Hemming and Morehouse (eds. 1976) was presented in Section VIII. Moose are present along the entire route and move throughout the area year-round. Caribou are present in the Copper River basin, and migrate westerly between mid-March and mid-May, and easterly between early October and early January. Dall sheep are not present in the area crossed by the route. Brown bear are present throughout the Delta River drainage basin, and are concentrated between Upper Fish Lake and the mouth of Fish Creek. Bison are present between Black Rapids and Delta Junction, and they migrate westerly across the route from March 15 to April 15, and easterly from July 15 to October 1155 The Alaska Department of Fish and Game recommends that construction be timed to avoid peak caribou migration periods and that helicopter activity (if required) be restricted in the Alaska Range from early may to mid-June to avoid interference with dall sheep lambing. Right-of-way clearing may increase moose habitat, and there should be no impact on caribou, brown bear, or bison habitat. 9LUG 1361 (08/31/89) \X-4 Threatened and Endangered Species The American peregrine falcon, an endangered species, and the bald eagle and the trumpeter swan are considered "species of concern." Distribution of bald eagles and trumpeter swan, which as considered “species of concern,” are present along the Suggested Route. Distribution of peregrine falcon, bald eagles and trumpeter swan was presented in Section VIII. A field survey would have to be conducted to identify exact nesting sites. An “off limits" protective perimeter could be established for each falcon and eagle nest if construction occurred during the nesting season. The route would cross an extensive trumpeter swan nesting area in the Copper River basin. The Alaska Department of Fish and Game and the U.S. Fish and Wildlife Service recommend that there by no construction activities during the trumpeter swans nesting period, May 1 to August 31. As mentioned in Section VIII, collision potential is a major consideration, as the area around Glennallen contains breeding habitat for an estimated 20 to 25 percent of the world's trumpeter swan population. The Suggested Route generally would avoid open water bodies, but it would cross wetlands and the Gulkana River, a major migration corridor. As previously discussed, studies conducted in 1988 documented that swan, geese, and ducks flew higher than 100 feet above ground level on clear days during migration. Reducing conductor height below 100 feet in migration and waterfowl use areas would reduce collision potential. Archeological and Historic Sites Cultural resource sites in the vicinity of the Suggested Route listed by the Alaska Heritage Resources Survey (AHRS) are shown in Table 19. Transmission line construction will rely heavily upon vehicular transportation along a brushed access road. A winter-only use scenario will minimally require a reconnaissance level survey, while a summer use trail and/or other potentially ground disturbing activities will require some level of intensive systematic testing. The Alaska Office of History and Archaeology and the U.S. Interior Department will require consideration of non-direct construction impacts on cultural resources resulting from increased recreational use of an area, erosion, etc. QLUG 1361 (08/31/89) IX-5 In addition to required federal and state archaeological surveys, the land-holding native corporations may initiate additional cultural resources compliance requirements. These have previously included some or all of the following: special fees and permits, review and approval of research designs, active participation in field investigations, extensive additional oral history and ethnohistoric research, establishment of research protocols, and mitigative monetary compensation. The cost of cultural resources investigation and mitigation may be expected to be somewhat higher for this project than for comparable previous projects. This is directly attributable to the type of proposed construction, the potential for impacts to known sites within constricted areas, the probable discovery of sites during survey, an expanded survey area associated with potential long-term impacts (not only recreational use of the trails but also emergency summer use of a winter trail), and changing attitudes and requirements of native landholding corporate entities. Pole locations could be adjusted to avoid specific sites, and alignments could be modified to avoid creating a right-of-way in an area containing a number of sites. In areas where right-of-way options are limited, sites could be cleared prior to construction. Personnel would be instructed not to vandalize or remove artifacts from any area. Land Use The Suggested Route would cross three miles proposed for inclusion in the Trumpeter Swan Critical Habitat Area. The area is currently managed to protect swan nesting habitat, as follows (Alaska Dept. of Natural Resources and Alaska Dept. of Fish and Game 1986). Overland access and other activities requiring permits are prohibited between May 1 and August 31 unless the Alaska Department of Fish and Game determines that the activity is compatible or the Alaska Department of Natural Resources determines that it is not feasible or prudent to prohibit the activity. In those cases, the Alaska Department of Fish and Game can require that activities be prohibited within one-quarter mile of current or potential swan nesting or staging ponds, marshes, or lakes. The Suggested Route would avoid all of the state recreation sites described in Section VIll. It would cross the access road to Bonnie Lake State Recreation Site, and 9LUG 1361 (08/31/89) IX-6 it would be located on the western border of Dry Creek State Recreation Site, but as previously discussed, there would be no impact. It would cross six miles of the Matanuska Valley Moose Range, and right-of-way clearing may enhance moose habitat. It would cross the Gulkana River downstream of the portion designated as a wild and scenic river. There is a potential for increased hunting and fishing due to access from right-of-way. Aesthetics Between Sutton and Glennallen, the Suggested Route is generally shielded from the Glenn Highway, and the only highway crossing would be in Glennallen, to access the substation adjacent to Pump Station 11. Between Glennallen and Sourdough, the Suggested Route would not be visible from the Richardson Highway, but it would be in an open area. The Suggested Route is generally screened from the highway between Sourdough and Paxson and Black Rapids and Delta Junction, although there are four highway crossings; but between Paxson and Black Rapids, it would be visible. The TAPS line is buried in most of this segment, and would not provide an effective screen. The potential visual impact is the major environmental concern encountered in this study. It is probable that a detailed visual assessment would have to be conducted before state and federal landowners would grant right-of-way permits. Social Impacts Construction of a transmission line is anticipated to require small work crews over short periods of time. It is unlikely that there would be a requirement for new housing, schools, or other services. Right-of-way clearing and equipment operation in tower placement and cable stringing could result in short-term employment opportunities for residents of communities in the vicinity of the Suggested Route. Construction would require installation of air navigation markers and updating of air navigation charts. The final alignment would avoid airstrips. Considerable public comments was made relative to the suggested route. All of the public comment is contained in Appendix |. For this purpose, the rerouting shown on the suggested route has been provided to mitigate these concerns. 9LUG 1361 (08/31/89) \X-7 The Northeast Intertie Concerned Residents proposed two alternative routes as shown in Appendix |. These routes were evaluated and the more favorable route, shown in the following figures, was developed further. It is apparent that this alternative could be constructed. The route is shorter than the suggested route over this segment, but is further from the highway in more difficult terrain, although some trail access is available. Based on these facts, it was concluded that the cost would be approximately the same as the suggested route over this segment. However, operational costs would be higher and access difficulty could cause serious problems if outages occurred during time when weather conditions restricted access. Geological Conditions and Geological Hazards Geologic information for the preferred route was developed from State of Alaska Department of Natural Resources, Graphical Information Systems data. This data is a computerized compilation of aerial photography, LANDSAT data imagery and field verification data. This data is compiled at 1:250,000 scale. Geologic hazards were identified from the Trans-Alaska Pipeline Environmental Assessment Atlas (1973) along the Richardson Highway corridor and from review of aerial photographs in other areas. The Suggested Route begins at Sutton. The route follows the Matanuska Valley for approximately 41 miles. Geologic features in the Matanuska Valley are the product of several glacial advances. The surficial soils in the valley floor for the first 15 miles are predominantly glaciofluvial materials consisting of sands and gravels, forming braided channels, esker and other features typical of ice stagnation zones. Soil deposits in the area are moderately thick with some areas ice-scoured to result in bedrock exposures. Foundations in this area will be typically shallow piles in the sand and gravel deposits, with rock anchors in areas where bedrock is exposed. Small avalanche chutes are present in the Talkeetna Mountains along this portion of the route. Mitigating potential problems associated with avalanche events in this area is a valley terrace between the mountains and route which dissipates downslope forces. Closures of the Glenn Highway associated with avalanches, land slides or other mass wasting in this area are rare. 9LUG 1361 (08/31/89) IX-8 NEICR Alternative Route Sheet 1 Tramway \ é e : . 5° ae t = ust 304 ~ = ’ . 9 =- = eae ERE WO SY oy any a e ST B e ALE Hy 7 o/,8) SEF NALS aS From Chickaloon to Slide Mountain, the route crosses glacial drift associated with the Knik and prior Eklutna glacial advances. Soils in this area are anticipated to be poorly sorted and bedded fine and coarse grained soils. Much of this material has been glacially overridden, resulting in very dense soils. Foundations in this area are anticipated to be shallow piles. Streams entering the Matanuska Valley often flow through deep gorges in the areas from mile 25 to 40 which resulted from large flow during glacial retreat or from flow diversion around the main ice mass. Deeper plies (piles) of other lateral support may be necessary where inter-tower spans cross the larger gorges. At Sheep Mountain, the route follows the Caribou and Squaw Creek Valleys around the north side of Sheep Mountain. This segment to Tahetna Lodge is approximately 15 miles. The route follows the eastern valley wall along Caribou Creek to a terrace along the south side of Squaw Creek. Soils in this area are reported to be a thin mantle of glacial till over shallow bedrock. Foundations in this area are anticipated to be shallow piles, however, rock anchors may be necessary in areas of thin over burden. Beyond Slide Mountain, the route crosses a proglacial lake bed for the remaining 45 miles to Glennallen. Soils are generally fine-grained deposits, well bedded and sorted. Terrain in this area is relatively flat with numerous lakes and streams, forming a poorly developed drainage system. Areas covered by thick organic deposits are common. Sporadic discontinuous permafrost is found throughout this area, more commonly in areas of thicker organic deposits. Design of transmission line supports in this area must take into account high frost jacking forces typically developed due to seasonal freezing of fine-grained, high moisture soils. Deep pile foundations or multiple piles are anticipated for this segment of the route. North of Glennallen, the route continues across the proglacial lake formation for 38 miles to Hogan Hill. North of Hogan Hill, the route rises out of the lake bed and crosses older glacial drift through the Alaska Range at Isabel Pass and into the Delta River System near route Mile 110. Soils through this segment of the route are the product of several advances of the numerous valley glaciers in this area and are anticipated to be dense, poorly sorted and bedded mixtures of silts. Deeper piles 9LUG 1361 (08/31/89) IX-9 will be required in these areas. In many areas, especially through the Alaska Range, soil deposits will be thin to nonexistent, requiring rock anchor foundations. In the Alaska Range, the route crosses two geotechnical hazards. At Rainbow Ridge (Mile 87), the route encounters a large avalanche zone. In this area, the line has been routed on the west side of Phelan Creek to minimize potential problems associated with this hazard. At Miller Creek (Mile 94) the route crosses the Denali Fault. Fault movement is anticipated to have minimal impact on the power line. At Mile 110, the route enters the Delta River Basin, following the Delta River to Delta Junction. Soils in this area include glacial outwash and alluvial deposits, including sands and gravels, generally well bedded. Foundations in these materials will be shallow piles. Along the valley margins, older river terraces of ancient glacial drift are present. In some areas, eolian deposits overlay the river terraces. Where eolian deposits are thin, pile foundations will be used. In thicker eolian deposits, deep piles may be necessary to develop lateral support in the unconsolidated sands and silts. Construction There would be no requirement for borrow sources, and excavated material from tower foundation placement, if any, would be left in place. Noise from construction vehicles would be minimal, at most if the line is more than half a mile from highways. Use of helicopters may generate more noise, but the duration would be short. Vehicle emission would be minimal, but if brush were burned in place, there would be smoke for a short period of time. If brush were chipped, there would be no smoke. There would be a total of five highway crossings; however, traffic disruption would be minimal. Operation As discussed at voltages of 230kV or lower, electromagnetic interference is usually considered insignificant provided that no infringement into the right of way is permitted. This limits the levels to those found acceptable in states with the most stringent guidelines. In addition, the suggested route can be constructed so as to be 250 feet from any structure. Anticipated maintenance involves an inspection as SLUG 1361 (08/31/89) IX-10 often as every other month, and a more thorough inspection would be conducted less frequently. Inspections would be conducted from the air, with follow-up on the ground if problems were detected. When right-of-way maintenance requires vegetation control, the impact on wildlife utilizing the declared right-of-way would be minor if manual methods were used. Limiting right-of-way access is a potential problem. Portions of the right-of-way would receive public use. The potential for increased public use is greatest in areas where no trails currently exist and in popular hunting and fishing areas. Each landowner would have to be consulted for right-of-way requirements. 9LUG 1361 (08/31/89) IX-11 X. LAND OWNERSHIP POWER Engineers, Incorporated X. LAND OWNERSHIP Data for this land ownership evaluation were developed primarily from U.S. Bureau of Land Management (BLM) land status plats, with verification using State of Alaska Department of Natural Resources (DNR) land status plats for status verification in selected areas. It should be recognized that BLM plats indicate only the primary conveyance (i.e. conveyance from federal ownership to a state, local or private concern). Additional conveyances particularly from state to local government or private ownership may not be reflected in the data presented. For the purposes of this discussion, privately owned lands include homesite, mineral entry and trade and manufacturing site patents. Ownership parcels are indicated on the 1:63,360 scale route maps with notation as to ownership of each parcel in the vicinity of the analyzed routes. From the O'Neill Substation at Sutton, the first 3.1 miles of the suggested alternative route cross privately owned lands including homesite and mineral entries. At Mile 3.1 the route crosses onto land conveyed to the Matanuska-Susitna (MatSu) Borough and remains on borough land for the next 6 miles, crossing one- half mile of private land at Mile 4.0. The route is primarily on state land for the next 25.6 miles, crossing private lands at Mile 14.5 (one-fourth mile) and Mile 17 (1 mile). The route also adjoins but does not encroach on private lands for 2.5 miles in this area (from Mile 14.0 to Mile 16.5). For the next 6.3 miles, Mile 35 to 41, the lands adjacent to the route are either owned by the Cook Inlet Regional Corp (CIRC) or held privately. The suggested route was contained in the highway right of way. Following public comment, a suggested alternative of this route places the line on state and civil land, and minimizes conflicts with private ownership. The route departs further from the highway at Route-Mile 41.0 proceeding northeasterly across state lands along Caribou Creek. At Mile 45.5, the route enters federal lands withdrawn for public power projects in the Caribou Creek Valley for 2.9 miles. The route continues northeasterly on state lands in the Squaw Creek Valley for the next 2.3 miles. At Route-Mile 50.2, the route encounters lands owned by the Ahtna Regional Corp. for the next 13.3. miles to the vicinity of the Eureka Roadhouse. At Mile 63, the 9LUG 1361 (08/31/89) X-1 route enters and remains primarily on state lands for the next 49.4 miles. Along this portion of the route, the alignment encroaches on a private parcel for approximately 1.4 mile at Mile 69.8 and crosses a Native Allotment parcel for 0.3 miles at Mile 71. At Mile 112.4, approaching Glennallen, the route enters Ahtna lands for the next 7 miles. Lands in this area are predominantly owned by Ahtna, with small in holdings of state, and private lands in the vicinity of the Glennallen Lodge. At Mile 119.2, the route follows a section line for 5.2 miles, with Ahtna lands to the north and state and federal lands to the south, entering state land at Mile 124.3. At this point, a two-way spur connects the proposed route to the existing substation at Pump Station 11. This spur is on state lands until it crosses the Glenn Highway, 1 mile south of the proposed route. The remainder of the spur crosses Ahtna lands for 0.9 miles to the substation. The route north from Glennallen passes across state-owned land for 6.1 miles from the right angle at Mile 124.3. From this point, the route crosses Ahtna land for the next 21.5 miles to the vicinity of Sourdough. There are two parcels of state land along this segment of the route totaling 3 line miles in the area of Route-Mile 17.3 from Glennallen. From Sourdough to Paxson (40 route-miles), the route crosses primarily federal-owned lands in the control of the BLM. This segment includes a one-fourth mile length at Mile 27.6 from Glennallen near Sourdough which crosses state land, and a one-half mile length at Mile 31.75 from Glennallen which crosses a Native Allotment parcel. All mileages from the tie to Glennallen are measured from Glennallen. From Paxson, the route is on state-owned land for 41.7 miles to approximately 4 miles north of Black Rapids Lake. The route crosses approximately 1 mile of military land north of Black Rapids Lake in this section of the route. At Mile 102.5, land ownership becomes federal for the next 9.8 miles. The route then crosses 6 miles of state land before encountering military lands near Donnelly Dome at Mile 123.7. The remaining 17.5 miles from Donnelly Dome to within three-fourth mile of the Jarvis Substation cross military reservation and other lands withdrawn for military purposes. The route follows property boundaries with military land to the west, QLUG 1361 (08/31/89) X-2 and state, federal and private lands to the east from Route-Mile 129.6 to 134.3 in this section of the route. Lands in the vicinity of the Jarvis Substation are predominantly under local or state control. SLUG 1361 (08/31/89) X-3 Xl. PERMITS POWER Engineers, Incorporated XI. PERMITS The final design, right-of-way procurements, and construction of the Northeast Intertie will require a number of federal, state, and local permits. Following is a list of specific permits and their application: PERMIT Field Studies Permits Land Use Permit State of Alaska Dept. of Natural Resources Field Archeology Permit U.S. Fish & Wildlife Service Antiquities Permit National Park Service Cultural Resource Use Permit Bureau of Land Mgmt. Bureau of Land Mgmt. Scientific Collecting Permit Alaska Dept Fish and Game QLUG 1361 (08/31/89) REMARKS This permit will be required for any on-site investigation on state land Required for any field studies Required if any objects of antiquity are gathered on federal lands during field studies. Assures that qualified persons are allowed to use public lands for archeological and historical investigations. For geotechnical and environmental studies on BLM-managed federal lands. Required if any environmental studies require the collection of species. XI-1 TIME REQUIRED 30 Days Prior to Conducting Work Prior to Conducting Work Prior to Conducting Work 90 Days Not Specified PERMIT REMARKS TIME REQUIRED Airplane Flight Paths Notice of Required to determine whether or not Prior to Construction Proposed Construction or Alteration structure will be a hazard to air navigation. Federal Aviation Administration Life and Fire Safety Check Plan for Required for all buildings Not Specified the Construction and Occupancy of Buildings State of Alaska Department of Public Safety Bureau of Land Mgmt. Will have to demonstrate NEPA compliance. Approximately 1 An EIS will probably be required. Year Right-Of-Way Easement Department Required for the actual construction of aline Approximately 6 of Natural Resources Division of across state land. Months Land & Water Management Encroachment Permit Required for any encroachment across or Prior to Construction State of Alaska along a highway. Department of Transportation and Public Facilities Utility Permit Required to locate line in state right-of-way Prior to Construction State of Alaska Department of Transportation & Public Facilities Fired and Unfired Pressure Vessels For any construction or installation of Prior to Use Inspections Alaska Department of pressure vessels Labor Certificate of Reasonable Assurance In compliance with Section 401 Approximately 90 (Water Quality Certification) Alaska Days Department of Environmental Conservation Special Area Permit For any identified critical habitat 50 Days State of Alaska Department of Fish & Game QLUG 1361 (08/31/89) XI-2 PERMIT Fish Habitat Permit State of Alaska Department of Fish & Game Oil Storage Facilities Oil Spill Prevention Containment & Counter- Measure (SPEC) Plans Environmental Protection Agency National Pollution Discharge Elimination System Permit to Discharge into Water Corps of Engineers Construction Related Solid Waste Disposal Permit Food Services Permit Foreign Labor Requirements Alaska Dept. of Labor U.S. Dept. of Labor Burning Permit Certificate of Fitness Journeyman Linemen & Explosive Handlers Department of Labor REMARKS To protect and conserve fish habitat in the state and for any bridge crossing of stream Required for permanent facilities as well as during construction For either construction camps or permanent facilities Structures in or affecting navigable waters. For any construction camp Construction Camp Required for the hiring of aliens For disposal of cleared material Required for persons engaged in construction of power transmission line work. TIME REQUIRED 50 Days Within Six Months of Operation 180 Days 120 Days 60 Days 30 Days Prior to Working 5 Days Prior to Working Other permits which are not identified in the foregoing may be required as the project develops. This list is not intended to be comprehensive. 9LUG 1361 (08/31/89) XI-3 XII. PROJECT COSTS ALTERNATE ROUTES POWER Engineers, Incorporated PROJECT COST SUMMARY Alternatives Routes |. NORTHWEST ROUTING ALTERNATIVE - COST Line Costs $ 121,206,000.00 Station Costs 31,943,224.00 Environmental & Right-of-Way Costs 5,055,975.00 TOTAL COST $ 158,205,199.00 ll. SOUTHEAST ROUTING ALTERNATIVE - COST Line Costs $ 118,303,000.00 Station Costs 35,321,648.00 Environmental & Right-of-Way Costs 7,895,325.00 TOTAL COST $ 161,519,973.00 Ill. SUGGESTED ROUTING ALTERNATIVE - COST Combination of Routes Line Costs $ 119,205,000.00 Station Costs 31,943,224.00 Environmental & Right-of-Way Costs 5,042,175.00 TOTAL COST $ 156,190,399.00 QLUG 1361 (08/09/89) Xil-1 NORTHEAST INTERTIE ENVIRONMENTAL COST ESTIMATE Geotechnical Investigation Environmental Studies Field Support Right-of-Way and Permits Cultural Resources Contingency 15% RIGHT-OF-WAY ACQUISITION COSTS Northwest Route Contingency Southeast Route Contingency Suggested Route Contingency 9LUG 1361 (080+ 49) XII-2 $ 550,000.00 540,000.00 712,500.00 360,000.00 900,000.00 $ 3,062,500.00 459,375.00 $3,521,875.00 $ 1,334,000.00 200,100.00 $ 1,534,100.00 $ 3,803,000.00 570,450.00 $ 4,373,450.00 $ 1,322,000.00 198,300.00 $ 1,520,300.00 SUMMARY TRANSMISSION LINES The cost summaries of the Southeast, Northwest, and Suggested Route are as follows: Northwest-O’Neill to North Pole O'Neill to Glennallen 48,078,000 Glennallen to Gakona 7,379,000 Gakona to Jarvis 58,613,000 Carney to North Pole (Wood Pole) 7,136,000 Total 121,206,000 Annual - O&M 1,818,000 Southeast-O’Neill to North Pole - O'Neill to Glennallen Switch Station 47,076,000 - Glennallen Switch Station to Gakona 5,205,000 - Gakona to Jarvis 58,886,000 - Carney to North Pole (Wood Pole) 7,136,000 Total 118,303,000 Annual - O&M 1,775,000 Suggested Route-O’Neill to North Pole - O'Neill to Crossover at Sourdough 61,570,000 - Crossover at Sourdough to Jarvis 50,499,000 - Carney to North Pole (Wood Pole) 7,136,000 Total 119,205,000 Annual - O&M 1,788,000 9LUG 1361 (08/10/89) XII-3 SOUTHEAST ROUTE SUMMARY OF STATION COSTS STATION O'Neill Tap Substation O'Neill Substation Glennallen Substation Pumping Station No. 11 Substation Gakona Junction Substation Jarvis Creek Substation Carney Substation North Pole Substation SLUG +361 (08.09/89) XII-4 $2,404,742 4,551,332 4,378,062 -Q- 15,556,324 2,362,652 2,463,668 3,604,868 Total $35,321,648 NORTHWEST ROUTE & SUGGESTED ROUTE SUMMARY OF STATION COSTS STATION O'Neill Tap Substation O'Neill Substation Pumping Station No. 11 Substation Gakona Junction Substation Jarvis Creek Substation Carney Substation North Pole Substation SLUG 1361 (08/09/89) XII-5 $2,404,742 4,551,332 999,638 15,556,324 2,362,652 2,463,668 3,604,868 TOTAL $31,943,224 SUBSTATIONS - SOUTHEAST ROUTE DESIGN REQUIREMENTS AND COST ESTIMATES SOUTHEAST ROUTE O‘NEILL TAP SUBSTATION DESCRIPTION O'Neill Tap Substation will be a new switching station located approximately mid- way between Teeland and O'Neill Substations on the existing 115kV line. The station will be constructed to 230kV spacing, but will be operated at 115kV until the line is converted to 230kV. Initial construction will be a 3-breaker ring bus, with provisions for expansion to a 4-breaker ring. ILUG 1361 (08/09/89) XII-6 Geox IISKV, 19 MI. TEELAND SUB. | T IISKV, 54 MI. MLP2 SUB. SOUTHEAST ROUTE O'NEILL TAP SUBSTATION MEA 115KV. 16 MI. O°NEILL SUB. STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE O'NEILL TAP SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Voltage XFMR Structure 230kV Current XFMR Structure 230kV Arrester Structure 230kV Bus Support Structure EQUIPMENT 138kV Circuit Breaker 138kV 3@ Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - O'NEILL TAP SUBSTATION 309-89) QUANTITY oN NY | DN - Fe UO DW DD Ww LS; ES LS; LESS Ls. LS: XU1-8 UNIT COST $32,000 10,000 4,000 4,000 1,500 1,500 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 102,000 132,000 183,000 230,000 20,000 200,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED COS $64,000 60,000 4,000 8,000 3,000 9,000 285,000 75,000 36,000 72,000 36,000 100,000 50,000 36,500 8,500 102,000 132,000 183,000 230,000 20,000 200,000 $1,714,000 171,400 119,980 85,700 $2,091,080 313,662 $2,404,742 SOUTHEAST ROUTE O'NEILL SUBSTATION DESCRIPTION The existing O'Neill Substation will be expanded with the addition of a 3-breaker 115kV Ring Bus (built for 230kV) and a 100/133/167 MVA, 115-138kV autotransformer on the Glennallen Substation line terminal (built for 230kV). The Ring Bus will be expandable to a 4-breaker configuration with the addition of one breaker, two disconnect switches and a line terminal. No outage would be required for the expansion. The existing 115-24.9kV, 5 MVA transformer and the associated 24.9kV distribution will be fed from the ring bus and will not be changed. 9LUG 1361 (08/09/89) XII-9 OL=IEX 138KV, 107 MI. GLENNALLEN SUB. ioe p= EXISTING ' 115-138KV In | 115-24. 9KV 100/133/167 MVA 5 MVA ! I I —-| — vi — jt 24.9KV_DISIR ! ! pu 1 1 1 \----= EXISTING SOUTHEAST ROUTE O°NETLL SUBSTATION LISKV. 16 MI. O’NEILL TAP SUB. MEA STATION COST ESTIMATE ISSUED: 12/88, — REV. PAGE 1 OF 2 STATION: SOUTHEAST ROUTE O'NEILL SUBSTATION CONSTRUCTION UNIT QUANTITY UNIT COST EXTENDED COST STRUCTURES 230kV Dead End Structure 1 $32,000 $32,000 230kV Switch Structure 1 10,000 10,000 230kV Current XFMR Structure 1 4,000 4,000 230kV Voltage XFMR Structure 1 4,000 4,000 230kV Dead End Structure 1 32,000 32,000 230kV Switch Structure 7 10,000 70,000 230kV Arrester Structure 2 1,500 3,000 230kV Bus Support Structure A2) 1,500 18,000 230kV Current XFMR Structure 1 4,000 4,000 230kV Voltage XFMR Structure 1 4,000 4,000 EQUIPMENT 138kV Circuit Breaker 4 95,000 380,000 138kV 3@ Switch 8 12,500 100,000 138kV -115kV XFMR 100/133/167 1 1,200,000 1,200,000 138kV Voltage XFMR 7 12,000 84,000 138kV Current XFMR 6 12,000 72,000 138kV Surge Arrester 6 6,000 36,000 Control Switchboards 6 20,000 120,000 SCADA & Communications L.S. 50,000 50,000 Control Building IES: 36,500 36,500 Station Service L.S. 8,500 8,500 Install Structures LS? 110,000 110,000 Install Equipment LS: 140,000 140,000 Foundations LES 220,000 220,000 (0309.83 XH-11 STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE O'NEILL SUBSTATION CONSTRUCTION UNIT Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - O'NEILL SUBSTATION 361 /73.09 89) QUANTITY LES: LES: LS: XI-12 UNIT COST 274,000 32,000 200,000 Subtotal Subtotal PAGE 2 OF 2 EXTENDED COS 274,000 32,000 200,000 $3,244,000 324,400 227,080 162,200 $3,957,680 593,652 $4,551,332 SOUTHEAST ROUTE PUMP STATION NO. 11 SUBSTATION DESCRIPTION Pump Station No. 11 Substation will not be modified. The existing 138kV line from Valdez will loop through the new Glennallen Substation about two (2) miles away and remain terminated at Pump Station No. 11 Substation. 9LUG 1361 (08/09/89) XII-13 Pei 138-24. 9KV 12/16/20 MVA oO o = = e = wo wn = = lu (ee) | SMVAR i I (EXISTING) | eS ee 138KV, 2 MI. GLENNALLEN SUB. SOUTHEAST ROUTE PUMP STA. #11 SUBSTATION CVE 9LUG STATION COST ESTIMATE ISSUED: 12/88, REV. PAGE 1 OF STATION: SOUTHEAST ROUTE PUMPING STATION NO. 11 This Substation is not affected in this option, and no cost estimate is necessary. 361 (08.09.89) XII-15 1 SOUTHEAST ROUTE GLENNALLEN SUBSTATION DESCRIPTION Glennallen Substation will be a new switching station constructed approximately two miles south of Pump Station #11 Substation, to provide reactive transmission compensation and transmission line sectionalizing. The station will consist of a 4- breaker, 138kV Ring Bus (built to 230kV). A 15 Mvar reactor will be installed on the 138kV O'Neill line terminal and will be switched and protected by a circuit switcher. The other three 138kV line terminals will serve Gakona Substation, Pump Station #11 Substation, and Valdez Substation 9LUG 1361 (08/09/89) XII-16 CU=TTX 138KV, 107 MI. O*NEILL SUB. [38KV, 2 MI. PUMP STA. #11 Tye, [38KV. 110 MI. ISMVAR VALDEZ 138KV. 20 MI. GAKONA SUB. et Fabel meta eepbeeon ROUTE TTT AITRERMTTINIL STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE GLENNALLEN SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Voltage XFMR Structure 230kV Current XFMR Structure EQUIPMENT 138kV Reactor 15 Mvar 138kV Circuit Breaker 138kV Circuit Switcher 138kV 3 Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards _ SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing 3.09 89) QUANTITY 13 16 wonr-F os - Fe wna wn LS: LS; LES: LS. LS: XH-18 UNIT COST $32,000 10,000 1,500 1,500 4,000 4,000 400,000 95,000 50,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 170,000 180,000 280,000 330,000 39,000 PAGE 1 OF 2 EXTENDED CO: $128,000 130,000 6,000 24,000 8,000 8,000 400,000 380,000 50,000 162,500 72,000 72,000 36,000 160,000 50,000 36,500 8,500 170,000 180,000 280,000 330,000 39,000 STATION COST ESTIMATE ISSUED: 12/88, REV. PAGE 2 OF 2 STATION: SOUTHEAST ROUTE GLENNALLEN SUBSTATION CONSTRUCTION UNIT QUANTITY UNIT COST EXTENDED COST Mobilization & Site Prep. ES: 390,000 390,000 Subtotal $3,120,500 Design (10%) 312,050 CM (7%) 218,435 Administration (5%) 156,025 Subtotal 3,807,010 Contingency (15%) 571,052 TOTAL - Paper aene $4,378,062 Xll-19 G 1361 (98.0989) SOUTHEAST ROUTE GAKONA SUBSTATION DESCRIPTION A new substation will be constructed near the town of Gakona to provide local distribution, reactive transmission compensation, and _ transmission line sectionalizing. The station will consist of a 3-breaker, 138kV Ring Bus (built to 230kV) which can be easily expanded to a 4-breaker scheme. A 15 Mvar reactor will be installed on the 138kV Jarvis Creek line terminal and a 12/16/20 MVA, 138- 12.47kV transformer with two 12.47kV feeders will be fed from a terminal on the Ring Bus. The third terminal will be the 138kV line to the new Glennallen Substation about 20 miles away. A static var system will be installed on the 138kV Glennallen Substation line terminal to obtain -30+100 Mvar of system reactive compensation. 9LUG 1361 (08/0989) XII-20 T@-I1IxX [38KV, 160 MI. JARVIS CREEK SUB. I 138-24. 9KV a = ISMVAR 12/16/20 MVA i SOUTHEAST ROUTE GAKONA SUBSTATION fag ae CVE + 100 MVAR - 30 MVAR ~" 138KV. 20 MI. GLENNALLEN SUB. STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE GAKONA SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Voltage XFMR Structure 230kV Current XFMR Structure 25kV Recloser Structure EQUIPMENT 138 - 24.9kV XFMR, 12/16/20 MVA Static VAR System, -30 + 100Mvar 138kV Reactor, 15 Mvar 138kV Circuit Breaker 138kV Circuit Switcher 25kV Recloser 25kV Switch 138kV 39 Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations G 1361 (08/09.89) QUANTITY Nye Ww WwW oo WwW NYO NR Lf S| = = = N 10 LES: LES! LS, XII-22 UNIT COST $32,000 10,000 1,500 1,500 4,000 4,000 2,000 360,000 7,500,000 400,000 95,000 50,000 30,000 200 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 110,000 170,000 239,000 PAGE 1 OF 2 EXTENDED COS $96,000 140,000 4,500 12,000 12,000 12,000 4,000 360,000 7,500,000 400,000 380,000 100,000 60,000 2,400 175,000 108,000 108,000 54,000 200,000 50,000 36,500 8,500 110,000 170,000 239,000 STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE GAKONA SUBSTATION CONSTRUCTION UNIT Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - GAKONA SUBSTATION JLUG 1361 (08.09/89) QUANTITY LS. eS: Lis: XII-23 UNIT COST 314,000 42,000 390,000 Subtotal Subtotal PAGE 2 OF 2 EXTENDED COST 314,000 42,000 390,000 $11,087,900 1,108,790 776,153 554,395 $13,527,238 2,029,086 $15,556,324 SOUTHEAST ROUTE JARVIS CREEK SUBSTATION DESCRIPTION The existing Jarvis Creek Substation will be expanded to include a 3-breaker, 138kV Ring Bus (built to 230kV) expandable to a 4-breaker ring. Terminals will be provided for the Gakona and Carney transmission lines and a terminal will feed the existing 138 - 24.9kV, 12/16/20 MVA transformer and its associated 12.47kV feeders to Fort Greely. 9LUG 1361 (08/09/89) XIl-24 Sé-IIx 138KV, 53 MI. CARNEY SUB. | 138KV. 160 MI. GAKONA SUB. 7777 EXISTING 138-24 .9KV 12/16/20 MVA ~~~ EXISTING SOUTHEAST ROUTE JARVIS CREFK SUBSTATION GVE FT. GREELY STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE JARVIS CREEK SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Current XFMR Structure 230kV Voltage XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 3@ Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - JARVIS CREEK SUBSTATION 61 (98.69 39) QUANTITY NN ON WON r- SP Daan Da w LES: ES! LS: EES: LS: Ls: XII-26 UNIT COST $32,000 10,000 1,500 1,500 4,000 4,000 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 98,000 94,000 134,000 208,000 20,000 200,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED CO; $64,000 80,000 3,000 12,000 8,000 8,000 285,000 75,000 72,000 72,000 36,000 120,000 50,000 36,500 8,500 98,000 94,000 134,000 208,000 20,000 200,000 $1,684,000 168,400 117,880 84,200 $2054,480 308,172 $2,362,652 SOUTHEAST ROUTE CARNEY SUBSTATION DESCRIPTION Modifications will be made to the existing Carney Substation to construct a 138kV main and transfer bus scheme to provide terminals for the North Pole and Jarvis Creek transmission lines, and a connection to the existing 138 - 69kV, 60/80/100 MVA autotransformer, and associated 69kV main and transfer bus. 9LUG 1361 (08/09/89) X1-27 &e-Z1I= EXISTING —-— 69KV M6 T EXISTING I!" 4 138-69KV 60/80/100 MVA @ ¢ TRANSFER BUS (——* qo bE le Ilr ells 138KV a el t @ @ | MAIN BUS ! ! 138KV. 22 MI. 138KV. 53 MI. NORTH POLE SUB. JARVIS CREEK SUB. SOUTHEAST ROUTE CARNE Y SUBSTATION ge STATION COST ESTIMATE ISSUED: 12/88, — REV. STATION: SOUTHEAST ROUTE CARNEY SUBSTATION CONSTRUCTION UNIT STRUCTURES 138kV Dead End Structure 138kV Switch Structure 138kV Arrester Structure 138kV Bus Support Structure 138kV Voltage XFMR Structure 138kV Current XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 39 Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - CARNEY SUBSTATION QUANTITY 18 N - - FA DAH oO WwW ES: [ESS L:S3 LSE LES: ES; X1-29 UNIT COST $26,000 8,000 1,500 1,500 4,000 4,000 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 124,000 114,000 211,500 234,000 20,000 130,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED COST $52,000 72,000 3,000 27,000 8,000 8,000 285,000 112,500 72,000 72,000 36,000 80,000 50,000 36,500 8,500 124,000 114,000 211,500 234,000 20,000 130,000 $1,756,000 175,600 122,920 87,800 $2,142,320 321,348 $2,463,668 SOUTHEAST ROUTE NORTH POLE SUBSTATION DESCRIPTION A new 1-1/2 breaker 138kV bus will be added to the existing North Pole Substation to provide terminals for the Carney and Ft. Wainwright lines, and terminals for the two existing 13.2-138kV, 45/60/75 MVA generator step up transformers. The 1-1/2 breaker scheme is utilized to obtain the reliability and flexibility required at a generating plant substation. SLUG 1361 (08/09/89) XII-30 Le=rrxX 69KV MAPCO EXISTING ~*~" \ BUS | 13.2-138KV | 45/60/75 MVA ! BUS 2 4 " 13.2-69KV 36/48/60 MVA 4 A if 13.2-138KV 45/60/75 MVA +E EXISTING ~~~ > if wanna nnn anna panne n nce nnnnnnnpennnn nanan i SOUTHEAST ROUTE NORTH POLE SUBSTATION GVE CARNEY SUB. T T | [3] ° J [ \ 138KV, 22 MI. e}-——+4 \ 138KV. 12 MI. FT. WAINWRIGHT STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: SOUTHEAST ROUTE NORTH POLE SUBSTATION CONSTRUCTION UNIT STRUCTURES 138kV Dead End Structure 138kV Switch Structure 138kV Arrester Structure 138kV Bus Support Structure 138kV Voltage XFMR Structure 138kV Current XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 39 Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - NORTH POLE SUBSTATION QUANTITY 12 16 mb n oO - Se Dn HD HD CO LS. LS: eS: Les: LES: ES: XII -32 UNIT COST $26,000 8,000 1,500 1,500 4,000 4,000 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 210,000 172,000 257,400 300,000 40,000 200,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED CO! $104,000 96,000 3,000 24,000 16,000 8,000 570,000 150,000 96,000 72,000 36,000 120,000 50,000 36,500 8,500 210,000 172,000 257,400 300,000 40,000 200,000 $2,569,400 256,940 179,858 128,470 $3,134,668 470,200 $3,604,868 SOUTHEAST ROUTE SUMMARY OF STATION COSTS STATION O'Neill Tap Substation O'Neill Substation Glennallen Substation Pumping Station No. 11 Substation Gakona Junction Substation Jarvis Creek Substation Carney Substation North Pole Substation 9LUG 1361 (08/09/89) XII-33 $2,404,742 4,551,332 4,378,062 =0= 15,556,324 2,362,652 2,463,668 3,604,868 TOTAL $35,321,648 SUBSTATIONS - NORTHWEST ROUTE DESIGN REQUIREMENTS AND COST ESTIMATES NORTHWEST ROUTE O'NEILL TAP SUBSTATION DESCRIPTION O'Neill Tap Substation will be a new switching station located approximately mid- way between Teeland and O'Neill Substations on the existing 115kV line. The station will be constructed to 230kV spacing, but will be operated at 115kV until the line is converted to 230kV. Initial construction will be a 3-breaker ring bus, with provisions for expansion to a 4-breaker ring. 9LUG 1361 (08/09/89) XII-34 Se =LLxX 11SKV, 54 MI. MLP2 SUB. NORTHWEST ROUTE O*NEILL TAP SUBSTATION MEA 11SKV. 16 MI. O°NEILL SUB. STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE O'NEILL SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Voltage XFMR Structure 230kV Current XFMR Structure 230kV Arrester Structure 230kV Bus Support Structure EQUIPMENT 138kV Circuit Breaker 138kV 3 Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - O'NEILL TAP SUBSTATION 309 39) QUANTITY ON NY | DN - PrP UO DW DD WwW L.S. LES! ES: LS: L.S. LS: Xil-36 UNIT COST $32,000 10,000 4,000 4,000 1,500 1,500 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 102,000 132,000 183,000 230,000 20,000 200,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED CO $64,000 60,000 4,000 8,000 3,000 9,000 285,000 75,000 36,000 72,000 36,000 100,000 50,000 36,500 8,500 102,000 132,000 183,000 230,000 20,000 200,000 $1,714,000 171,400 119,980 85,700 $2,091,080 —_ 313,662 $2,404,742 NORTHWEST ROUTE O'NEILL SUBSTATION DESCRIPTION The existing O'Neill Substation will be expanded with the addition of a 3-breaker 115kV Ring Bus (built for 230kV) and a _ 100/133/167 MVA, 115-138kV autotransformer on the Gakona Substation line terminal (built for 230kV). The Ring Bus will be expandable to a 4-breaker configuration with the addition of one breaker, two disconnect switches and a line terminal. No outage would be required for the expansion. The existing 115-24.9kV, 5 MVA transformer and the associated 24.9kV distribution will be fed from the ring bus and will not be changed. 9LUG 1361 (08/09/89) XIl-37 ge-IIx 138KV, 125 MI. GAKONA SUB. Ls 115-138KV 100/133/167 MVA LISKV. 16 MI. O’NEILL TAP SUB. 7777 EXISTING 115-24.9KV 5S MVA 1 1 1 ' t. —~7—* EXISTING NORTHWEST ROUTE O*NETLL SUBSTATION MEA STATION COST ESTIMATE STATION: NORTHWEST ROUTE O’NEILL SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Current XFMR Structure 230kV Voltage XFMR Structure 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Current XFMR Structure 230kV Voltage. XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 3@ Switch 138kV -115kV XFMR 100/133/167 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Instai! Structures Install Equipment Foundations QUANTITY 1 1 1 1 1 Us 2 12 1 1 ao oN —- CO fF ES: LS: LES: LS. ES: LS: X-39 ISSUED: 12/88, UNIT COST $32,000 10,000 4,000 4,000 32,000 10,000 1,500 1,500 4,000 4,000 95,000 12,500 1,200,000 12,000 12,000 6,000 20,000 50,000 36,500 8,500 110,000 140,000 220,000 REV. PAGE 1 OF 2 EXTENDED COST $32,000 10,000 4,000 4,000 32,000 70,000 3,000 18,000 4,000 4,000 380,000 100,000 1,200,000 84,000 72,000 36,000 120,000 50,000 36,500 8,500 110,000 140,000 220,000 STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE O'NEILL SUBSTATION CONSTRUCTION UNIT Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - O'NEILL SUBSTATION QUANTITY LESS LES: LS: X!1-40 UNIT COST 274,000 32,000 200,000 Subtotal Subtotal PAGE 2 OF 2 EXTENDED CO: 274,000 32,000 200,000 $3,244,000 324,400 227,080 162,200 $3,957,680 593,652 $4,551,332 NORTHWEST ROUTE PUMP STATION NO. 11 SUBSTATION DESCRIPTION Pump Station No. 11 Substation will be modified to add a 138kV breaker and line terminal for a new line to the new Gakona Substation. A line disconnect switch with grounding blades will be added to the existing 138kV line to Valdez. LUG 1361 (08/09/89) Xil-41 @p-IIxX I38KV. 18 MI. GAKONA SUB. be SMVAR Taree EXISTING 138-24. 9KV 12/16/20 MVA Fe 24,9KV DISTR, CEXISTING ) 138KV, 112 MI. VALDEZ NORTHWEST ROUTE PUMP STA. #11 SUBSTATION CVE STATION COST ESTIMATE ISSUED: 12/88, STATION: NORTHWEST ROUTE PUMPING STATION NO. 11 CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure EQUIPMENT 138kV Circuit Breaker 138kV 39 Switch Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - PUMPING STATION NO. 11 G 1361 (08/09/89) QUANTITY ES: ES: ES: ES: LES: ES. XIl-43 UNIT COST $32,000 10,000 1,500 95,000 12,500 6,000 20,000 50,000 36,500 8,500 10,000 14,000 20,000 35,000 32,000 200,000 Subtotal Subtotal REV. PAGE 1 OF 1 EXTENDED COST $32,000 30,000 1,500 95,000 50,000 18,000 80,000 50,000 36,500 8,500 10,000 14,000 20,000 35,000 32,000 200,000 $712,500 71,250 49,875 35,625 $869,250 130,388 $999,638 NORTHWEST ROUTE GAKONA SUBSTATION DESCRIPTION A new substation will be constructed near the town of Gakona to provide local distribution, reactive transmission compensation, and _ transmission line sectionalizing. The station will consist of a 4-breaker, 138kV Ring Bus (built to 230kV) and a 24.9kV distribution section. A 15 Mvar reactor will be installed on the 138kV Jarvis Creek line terminal and a 12/16/20 MVA, 138-12.47kV transformer with two 12.47kV feeders will be fed from a second terminal on the Ring Bus. The third terminal will be the 138kV line to Pump Station No. 11 and the fourth terminal will be the 138kV line to O’Neill Substation. A static Var system will be installed on the 138kV O'Neill line terminal to obtain +30 Mvar of system reactive compensation. SLUG 1361 (08.09/89) X11-44 Sp-IIx SVS 138KV, 160 MI. JARVIS CREEK SUB. + 100 MVAR - 30 MVAR EI ' 138KV. 125 MI. O’NEILL SUB. p— 138KV. 18 MI. PUMP STATION #11 SUB. 138-24. 9KV —{ }-——- 12/16/20 MVA NORTHWEST ROUTE GAKONA SUBSTATION CVE STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE GAKONA SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Voltage XFMR Structure 230kV Current XFMR Structure 25kV Recloser Structure EQUIPMENT 138 - 24.9kV XFMR, 12/16/20 MVA Static VAR System,-30 + 100 Mvar 138kV Reactor, 15 Mvar 138kV Circuit Breaker 138kV Circuit Switcher 25kV Recloser 25kV Switch 138kV 3@ Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations QUANTITY 10 ES: LS: ES ‘il-46 UNIT COST $32,000 10,000 1,500 1,500 4,000 4,000 2,000 360,000 7,500,000 400,000 95,000 50,000 30,000 200 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 110,000 170,000 239,000 PAGE 1 OF 2 EXTENDED CO $96,000 140,000 4,500 12,000 12,000 12,000 4,000 360,000 7,500,000 400,000 380,000 100,000 60,000 2,400 175,000 108,000 108,000 54,000 200,000 50,000 36,500 8,500 110,000 170,000 239,000 STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE GAKONA SUBSTATION CONSTRUCTION UNIT Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - GAKONA SUBSTATION QUANTITY LS; LS3 ES: Alt fs UNIT COST 314,000 42,000 390,000 Subtotal Subtotal PAGE 2 OF 2 EXTENDED COST 314,000 42,000 390,000 $11,087,900 1,108,790 776,153 554,395 $13,527,238 2,029,085 $15,556,324 NORTHWEST ROUTE JARVIS CREEK SUBSTATION DESCRIPTION The existing Jarvis Creek Substation will be expanded to include a 3-breaker, 138kV Ring Bus (built to 230kV) expandable to a 4-breaker ring. Terminals will be provided for the Gakona and Carney transmission lines and a terminal will feed the existing 138 - 24.9kV, 12/16/20 MVA transformer and its associated 12.47kV feeders. ILUG 1361 (08/09/89 XIl-48 JA9 NOTIVISENS WIIID STAY 4LNOY LSAMHLYON “ans WNOAWS “IW O9T “ABET VAW 02/91/21 ANG" ¥2-BET _—{| |X “ans AINYVD ONT LSIX3 —---+ “IW ES “ABET A133u9 “14 AY | a} XII-49 STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE JARVIS CREEK SUBSTATION CONSTRUCTION UNIT STRUCTURES 230kV Dead End Structure 230kV Switch Structure 230kV Arrester Structure 230kV Bus Support Structure 230kV Current XFMR Structure 230kV Voltage XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 3@ Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - JARVIS CREEK SUBSTATION G 1361 (08 09 39) QUANTITY NN ON WO N fre FP On aA DH WwW LS. LS; LS; LS. LES: LES" x1i-50 UNIT COST $32,000 10,000 1,500 1,500 4,000 4,000 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 98,000 94,000 134,000 208,000 20,000 200,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED COS $64,000 80,000 3,000 12,000 8,000 8,000 285,000 75,000 72,000 72,000 36,000 120,000 50,000 36,500 8,500 98,000 94,000 134,000 208,000 20,000 200,000 $1,684,000 168,400 117,880 84,200 $2,054,480 308,172 $2,362,652 NORTHWEST ROUTE CARNEY SUBSTATION DESCRIPTION Modifications will be made to the existing Carney Substation to provide a 138kV main and transfer bus scheme to provide terminals for the North Pole and Jarvis Creek transmission lines, and a connection to the existing 138 - 69kV, 60/80/100 MVA autotransformer, and associated 69kV main and transfer bus. 9LUG 1361 (08/09/89) Xil-51 @S-IIX 69KV M & T EXISTING — EXISTING 60/80/100 MVA ---—— @ -@ Ty TRANSFER BUS —_—® e——“4“ le L in nll 138KV : 2] @ @ | MAIN BUS y y 138KV. 22 MI. 138KV. 53 MI. NORTH POLE SUB. JARVIS CREEK SUB. NORTHWEST ROUTE CARNEY SUBSTATION GVE STATION COST ESTIMATE ISSUED: 12/88, REV. STATION: NORTHWEST ROUTE CARNEY SUBSTATION CONSTRUCTION UNIT STRUCTURES 138kV Dead End Structure 138kV Switch Structure 138kV Arrester Structure 138kV Bus Support Structure 138kV Voltage XFMR Structure 138kV Current XFMR Structure EQUIPMENT 138kV Circuit Breaker 138kV 3@ Switch 138kV Voltage XFMR 138kV Current XFMR 138kV Surge Arrester Control Switchboards SCADA & Communications Control Building Station Service Install Structures Install Equipment Foundations Furnish and install all other electrical work Testing Mobilization & Site Prep. Design (10%) CM (7%) Administration (5%) Contingency (15%) TOTAL - CARNEY SUBSTATION QUANTITY N - = FA AHO WwW LS: LES: ES: Se LS. LS; XI1-53 UNIT COST $26,000 8,000 1,500 1,500 4,000 4,000 95,000 12,500 12,000 12,000 6,000 20,000 50,000 36,500 8,500 124,000 114,000 211,500 234,000 20,000 130,000 Subtotal Subtotal PAGE 1 OF 1 EXTENDED COST $52,000 72,000 3,000 27,000 8,000 8,000 285,000 112,500 72,000 72,000 36,000 80,000 50,000 36,500 8,500 124,000 114,000 211,500 234,000 20,000 130,000 $1,756,000 175,600 122,920 87,800 $2,142,320 321,348 $2,463,668 NORTHWEST ROUTE NORTH POLE SUBSTATION DESCRIPTION A new 1-1/2 breaker 138kV bus will be added to the existing North Pole Substation to provide terminals for the Carney and Ft. Wainwright lines, and terminals for the two existing 13.2-138kV, 45/60/75 MVA generator step up transformers. The 1-1/2 breaker scheme is utilized to obtain the reliability and flexibility required at a generating plant substation. ILUG 1361 (08.09/89) X1-54 SS-IIX 69KV MAPCO EXISTING ~~ 13.2-138KV 45/60/75 MVA 3 Ay Ye 13.2-69KV 36/48/60 MVA 4 A Ya 13.2-138KV 45/60/75 MVA \ BUS 2 iE Ava a ! 1 ! ! ' ! ' i 1 ay t ! 1 1 ! ! 1 ! 1 1 1 1 1 1 1 1 ! 1 ! 1 1 ! 1 1 ! 1 1 ! ! } 1 1 ! 1 ! 1 ' 1 T 1 ! ' ' 1 1 ! i EXISTING —--- NORTHWEST ROUTE NORTH POLE SUBSTATION GVE CARNEY SUB. Ti [5 | T {6 | ? J : \ LT eww. 12 MI. FT. WAINWRIGHT STATION COST ESTIMATE ISSUED: 12/88, REV. PAGE 1 OF 1 STATION: NORTHWEST ROUTE NORTH POLE SUBSTATION CONSTRUCTION UNIT QUANTITY UNIT COST EXTENDED COS STRUCTURES 138kV Dead End Structure 4 $26,000 $104,000 138kV Switch Structure 12 8,000 96,000 138kV Arrester Structure 2 1,500 3,000 138kV Bus Support Structure 16 1,500 24,000 138kV Voltage XFMR Structure 4 4,000 “16,000 138kV Current XFMR Structure 2 4,000 8,000 EQUIPMENT 138kV Circuit Breaker 6 95,000 570,000 138kV 3@ Switch 12 12,500 150,000 138kV Voltage XFMR 8 12,000 96,000 138kV Current XFMR 6 12,000 72,000 138kV Surge Arrester 6 6,000 36,000 Control Switchboards 6 20,000 120,000 SCADA & Communications 1 50,000 50,000 Control Building 1 36,500 36,500 Station Service 1 8,500 8,500 Install Structures LES: 210,000 210,000 Install Equipment LS: 172,000 172,000 Foundations LES: 257,400 257,400 Furnish and install all LS: 300,000 300,000 other electrical work Testing LS: 40,000 40,000 Mobilization & Site Prep. L.S. 200,000 200,000 Subtotal $2,569,400 Design (10%) 256,940 CM (7%) 179,858 Administration (5%) 128,470 Subtotal $3,134,668 Contingency (15%) 470,200 TOTAL - NORTH POLE SUBSTATION $3,604,868 08.09 83) XI1-56 NORTHWEST ROUTE SUMMARY OF STATION COSTS STATION O'Neill Tap Substation O'Neill Substation Pumping Station No. 11 Substation Gakona Junction Substation Jarvis Creek Substation Carney Substation North Pole Substation 9LUG 1361 (08/09 89) XII-57 $2,404,742 4,551,332 999,638 15,556,324 2,463,668 2,362,652 3,604,868 TOTAL $31,943,224 TRANSMISSION LINE - DESIGN REQUIREMENTS AND COST ESTIMATES DESIGN CRITERIA The following transmission line cost estimates were developed for the Northeast Transmission Intertie. From route maps supplied by Hart Crowser two estimates were prepared for alternate line routes from O'Neill to Jarvis Substations and one route from Carney to North Pole Substations. The basic design assumptions used were as follows: @ NESC Heavy Loading District e@ 1" Ice @ 100 mph Wind The cost estimates were developed based on current vendor quotes for material in 1988 dollars. Quotes for steel structures were $1.20/lb for steel delivered to Anchorage. The price quoted for conductor delivered to Anchorage was $1.40/Ib. The weights of the structures were based on previous POWER proposals and consultation with L. E. Myers and Valmont. The average height of the guyed tubular X-frame and single pole tubular structures will be approximately 120 feet above the ground. This will net a span of approximately 1200 feet. For the wood pole section of line from Carney to North Pole Substations, the structures will be about 75 feet above the ground which yields a span of approximately 300 feet. The Southeast Route will have approximately 1,020 tangent, 170 angle and 30 deadend structures while the Northwest Route will have approximately 1,000 tangent, 150 angle and 40 deadend structures. The section of line from Carney to North Pole will have approximately 370 tangent/light angle and 20 heavy angle/deadend structures. To develop the cost estimates for the section of line from O'Neill and Jarvis Substation the cost estimates were broken into links based’on the pile foundation requirements. From these different links, a cost summary for each section of line between substations was developed. 9LUG 1361 (08/09/89) Xi1-58 It should be noted that no right of way acquisition has been accounted for in the estimates. 9LUG 1361 (C8/09/89) XII-59 SOUTHEAST ROUTE SOUTHEAST ROUTE - O'NEILL TO GLENNALLEN SWITCH STATION (125.5 miles) The parameters assumed to generate the cost estimates for the transmission line from O'Neill to Glennallen Switch Station are as follows: @ Structure Type - Guy tubular steel X-frame - tangent - 3 pole guy tubular steel - angle & deadend @ Conductor Type- Double bundled “Rail” ACSR @ 230kV Insulation @ No OHGW The type of foundation for each link is as follows: Link 1 - Pile Link2 - = Rock Anchor Link3 - Pile Link4 = - ~~ Rock Anchor Link5 - Pile Link6 = - ~~ Rock Anchor Link7 - Pile Link 8 - Deep Pile Link9 - Pile Link 10 - Deep Pile Link 11 - Pile Link 12 - Deep Pile Link 13 - Pile Link 14 - Deep Pile Link 15 - Pile 9LUG 1361 (08/09 39) XI1-60 Tangent Structure XII-61 Angle Structure XII-62 COST ESTIMATE BY LINK SUM 230KV TRANSMISSION LIN APA NORTHEAST INTERTIE O’NEILL SUB. TO GLENNALLEN SWI SOUTHEAST ROUTE MARY E TCH STA. DESCRIPTION MILES COST LINK 1 7.25 LINK 2 9.75 LINK 3 15.00 LINK 4 3.50 LINK 5 7.90 LINK 6 1.00 LINK 7 35.95 | LINK 8 3.00 | LINK 9 1.00 LINK 10 9.00 LINK 11 3.00 LINK 12 4.00 LINK 13 1.00 LINK 14 17.30 LINK 15 6.80 SUB TOTALS 125.45 ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL 0&M 1.5% $270,621 $253,231 $257, 400 $260,000 $276,203 $269,000 $261,196 $309, 667 $276,000 $292,889 $265,000 $286,750 $276,000 $295,260 $279,853 $271,925 $1,962,000 $2,469,000 $3,861,000 $910,000 $2,182,000 $269,000 $9,390,000 $929,000 $276,000 $2,636,000 $795,000 $1,147,000 $276,000 $5,108,000 $1,903,000 $34,113,000 $3,411,300 $1,705,650 $1,705,650 $1,023,390 $5,116,950 $47,075,940 $706,139 SOUTHEAST ROUTE - GLENNALLEN SWITCH STATION TO GAKONA (12.1 miles) The parameters assumed to generate the cost estimates for the 230kV transmission line operated 138kV from the Glennallen Switch Station to Gakona Substation are as follows: @ Structure Type - Guy tubular steel X-frame - tangent - 3 pole guy tubular steel - angle & deadend @ Conductor Type- Double bundled “Rail” ACSR @ 230kV Insulation @ 3/8" E.H.S. OHGW The type of foundation for each link is as follows: Link 16 - Deep Piles 9LUG 1361 (08/0989) X1-64 Tangent Structure XII-65 Angle Structure XII-66 COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GLENNALLEN SWITCH STA. TO GAKONA JCT. SOUTHEAST ROUTE LINK 16 SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL 0&M 1.5% 12.05 $313,029 $313,029 $3,772,000 $3,772,000 $377,200 $188,600 $188,600 $113,160 $565,800 $5,205,360 $78,080 XII-67 SOUTHEAST ROUTE - GAKONA SUBSTATION TO JARVIS SUBSTATION (135.7 miles) The parameters assumed to generate the cost estimates for the 230kV transmission line operated 138kV from the Gakona Substation to Jarvis Substation are as follows: @ Structure Type - Guy tubular steel X-frame - tangent - 3 pole guy tubular steel - angle & deadend @ ConductorType- Double bundled “Rail” ACSR @ 230kV Insulation @ 3/8” E.H.S. OHGW The type of foundation for each link is as follows: Link 17 - Piles Link18 - Deep Pile Link 19 - Rock Anchor Link20 - Multiple Pile Link21. - Rock Anchor Link 22 - — Pre-drilled Pile Link 23. - Rock Anchor Link 24 - Pre-drilled Pile Link25 - Rock Anchor Link 26 - — Pre-drilled Pile Link27 - Pile LUG 1361 (08 09/89) XII-68 Tangent Structure XII-69 Angle Structure XII-70 COST ESTIMATE BY LINK SUMMARY LINK 17 LINK 18 LINK 19 LINK 20 LINK 21 LINK 22 LINK 23 LINK 24 LINK 25 |LINK 26 | INK 27 SUB TOTALS | ENGINEERING 10% | CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% | MOBILIZATION & DEMOBILIZATION 3% | CONTINGENCY 15% | | AL | | ANNUAL O&M 1.5% 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GAKONA JUNCTION TO JARVIS SOUTHEAST ROUTE MILES COST PER MILE 3.30 $281,818 | 30.65 | $313,801 5.25 $276,381 4.25 $340,706 | 3.20 $277,188 26.80 $334,179 3.00 $276,667 26.00 $333,731 7.00 $265, 286 11.00 $340,636 15.25 $280,000 135.70 $314,451 $930,000 $9,618,000 $1,451,000 $1,448,000 $887 ,000 $8,956,000 $830,000 $8,677,000 $1,857,000 $3,747,000 $4,270,000 $42,671,000 $4,267,100 $2,133,550 $2,133,550 $1,280,130 $6,400,650 $58,885, 980 $883,290 XII-71 NORTHWEST ROUTE NORTHWEST ROUTE - O'NEILL TO GLENNALLEN (126.7. miles) The parameters assumed to generate the cost estimates for the 230kV transmission line operated 138kV from the O'Neill to Glennallen are as follows: @ Structure Type Guy tubular steel X-frame - tangent - 3pole guy tubular steel - angle & deadend - Single circuit self-supporting steel-tangent @ Conductor Type- Double bundled “Rail” ACSR @ 230kV Insulation @ NoOHGW The type of foundation for each link is as follows: Link 1 - Pile Link2 - Rock Anchor Link3 - Pile Link4 - Rock Anchor Link 5 - Pile Link6 = - Rock Anchor Link 7 - Pile Link8 - Rock Anchor Link9 - Pile Link 10 - Deep Pile Link 11. - Pile Link12 - Deep Pile Link12A - Deep Pile 9LUG 1361 (08/09/89) XII-72 Tangent Structure Angle Structure XII-74 Single Circuit Tangent Pole XII-75 COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE O’NEILL SUBSTATION TO GLENNALLEN NORTHWEST ROUTE LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK 1 o On TD oOo FSF WY PY 10 MW 12 12A SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL O&M 1.5% 16.40 32.40 10.00 12.00 20.12 126.72 $265,500 $246,889 $263,429 $250,429 $278,354 $292,667 $265,710 $259,000 $257,500 $296,900 $258,000 $294,831 $436,111 $274,929 $3, 186,000 $1,111,000 $922,000 $1,753,000 $4,565,000 $878,000 $8,609,000 $518,000 $515,000 $2,969,000 $3,096,000 $5,932,000 $785,000 $34,839,000 $3,483,900 $1,741,950 $1,741,950 $1,045,170 $5,225,850 $48,077,820 $721,167 XII-76 NORTHWEST ROUTE-GLENNALLEN TO GAKONA SUBSTATION (11.7miles) The parameters assumed to generate the cost estimates for the 230kV transmission line operated 138kV from the Glennallen to Gakona Substation are as follows: @ Structure Type Guy tubular steel X-frame - tangent - 3pole guy tubular steel - angle & deadend - Double circuit self-supporting steel - tangent Double bundled “Rail” ACSR @ Conductor Type @ 230kV Insulation e@ 3/8" E.H.S. OHGW The type of foundation for each link is as follows: Link 13 - Deep Piles 9LUG 1361 (08/09/89) XII-77 Tangent Structure XII-78 Angle Structure XII-79 Double Circuit Tangent Pole XII-80 COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GLENNALLEN TO GAKONA JCT. NORTHWEST ROUTE DESCRIPTION MILES COST PER MILE |TOTAL COST LINK 13 BUG) $457,009 | $5,347,000 SUB TOTALS 11.70 $457,009 | $5,347,000 ENGINEERING 10% $534,700 CONSTRUCTION MANAGEMENT 5% $267,350 ADMINISTRATION 5% $267,350 MOBILIZATION & DEMOBILIZATION 3% $160,410 CONTINGENCY 15% $802,050 TOTAL $7,378,860 ANNUAL 0&M 1.5% | $110,683 XII-81 NORTHWEST ROUTE - GAKONA SUBSTATION TO JARVIS SUBSTATION (134.1 miles) The parameters assumed to generate the cost estimates for the 138kV transmission line operated 138kV from the Gakona Substation to Jarvis Substation are as follows: @ Structure Type - Guy tubular steel X-frame - tangent - 3 pole guy tubular steel - angle & deadend @ Conductor Type- Double bundled “Rail” ACSR @ 230kV Insulation @ 3/8” E.H.S. OHGW The type of foundation for each link is as follows: Link 14 - Deep Pile Link 15 - Multiple Pile Link 16 - Deep Pile Link 17 - Multiple Pile Link 18 - Deep Pile Link 19 - Pile Link 20 - Rock Anchor Link21 - Pile Link 22 - — Pre-drilled Pile Link 23 - Pile ILUG 1361 (08/09/89) XII-82 Tangent Structure XII-83 Angle Structure XII-84 LINK 14 LINK 15 LINK 16 {LINK 17 | INK 18 {LINK 19 1 INK 20 LINK 21 LINK 22 LINK 23 SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL O&M 1.5% COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GAKONA JUNCTION TO JARVIS NORTHWEST ROUTE 71. ees 134. > wo +> 10 $311,765 $340,833 $316,508 $367,000 $336 , 667 $281,277 $283 ,548 $285,455 $332,239 $277,862 $316,726 $2,385,000 $2,045,000 $3,988,000 $367,000 $404,000 $1,322,000 $879,000 $1,256,000 $23,589,000 $6,238,000 $42,473,000 $4,247,300 $2,123,650 $2,123,650 $1,274,190 $6,370,950 $58,612,740 $879,191 XII-85 WOOD POLE ROUTE CARNEY SUBSTATION TO NORTH POLE SUBSTATION (22 miles) The parameters assumed to generate the cost estimates for the 138kV transmission line from the Carney Substation to North Pole Substation are as follows: @ Structure Type - Single pole wood - tangent angle & deadend @ ConductorType- “Drake” ACSR @ 138kV Insulation @ 3/8” E.H.S. OHGW Since the poles will be direct embedded no foundations will be required. It has been assumed that the poles will be buried one extra foot for the soil conditions. 9LUG 1361 (0809/89) XII-86 TYPICAL TANGENT (wooD) XII-87 LINK 1 (WOOD POLE) | SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% | | TOTAL ANNUAL O&M 1.5% COST ESTIMATE BY LINK SUMMARY 138KV TRAN SMISSION LINE APA NORTHEAST INTERTIE CARNEY TO NORTH POLE COMMON ROUTE SINGLE POLE WOOD $235,045 $235,045 $5,171,000 $5,171,000 $517,100 $258,550 $258,550 $155,130 $775,650 $7,135,980 $107,040 XII-88 TRANSMISSION LINES - SUGGESTED ROUTE COST ESTIMATE DETAILS nr 1 (WOOD POLE) | {sus TOTALS | ENGINEERING 10% | coNSTRUCTION MANAGEMENT 5% | ADMINISTRATION 5% | MOBILIZATION & DEMOBILIZATION 3% | |CONTINGENCY 15% Hora ANNUAL 0&M 1.5% COST ESTIMATE BY LINK SUMMARY 138KV TRANSMISSION LINE APA NORTHEAST INTERTIE CARNEY TO NORTH POLE COMMON ROUTE SINGLE POLE WOOD MILES COST PER MILE |TOTAL COST | 22.00 $235,045 | $5,171,000 22.00 $235,045 | $5,171,000 | $517,100 $258,550 $258,550 $155,130 | | | $775,650 | $7,135,980 | | $107,040 XII-89 COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CROSSOVER AT SOURDOUGH TO JARVIS (SOUTHEAST ROUTE) SUGGESTED ROUTE | LINK {LINK {LINK LINK LINK LINK LINK LINK LINK LINK 18) ¥*SEE (NOTE** 19 20 21 22 23 24 25 26 27 SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL O&M 1.5% 26.80 3.00 26.00 7.00 11.00 15.25 116.25 $308,309 $276,381 $340,706 $277,188 $334,179 $276,667 $333,731 $265,286 $340,636 $280,000 $314,783 $4,470,478 $1,451,000 $1,448,000 $887,000 $8,956,000" $830,000 $8,677,000 $1,857,000 $3,747,000 $4,270,000 $36,593,478 $3,659,348 $1,829,674 $1,829,674 $1,097,804 $5,489,022 $50,499,000 $757,485 ** NOTE ** OF ITS LENGTH FOR THE SUGGESTED ROUTE. xLL—90 LINK 18 OF THE SOUTHEAST ROUTE WILL BE ROUGHLY HALF COST ESTIMATE BY LINK SUMMARY 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE O’NEILL SUBSTATION TO CROSSOVER AT SOURDOUGH (NORTHWEST ROUTE) SUGGESTED ROUTE LINK 1 LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK 12A LINK 13 LINK 14 o On DTD oO Fe WY PY ed no KF Oo LINK 15 SUB TOTALS ENGINEERING 10% CONSTRUCTION MANAGEMENT 5% ADMINISTRATION 5% MOBILIZATION & DEMOBILIZATION 3% CONTINGENCY 15% TOTAL ANNUAL 0&M 1.5% 16. 32. 10. 12. 20. 11. | 152. $265,500 $246,889 $263,429 $250,429 $278,354 $292,667 $265,710 $259,000 $257,500 $296,900 $258,000 $294,831 $436,111 $457,009 $311,765 $340,833 $293,391 $3,186,000 $1,111,000 $922,000 $1,753,000 $4,565,000 $878,000 $8,609,000 $518,000 $515,000 $2,969,000 $3,096,000 $5,932,000 $785,000 $5,347,000 $2,385,000 $2,045,000 $44,616,000 $4,461,600 $2,230,800 $2,230,800 $1,338,480 $6,692,400 $61,570,080 $923,551 SUMMARY: TRANSMISSION LINES COST ESTIMATE SUMMARY TRANSMISSION LINES COSTS The cost comparison of the Southeast, Northwest, and Suggested Route are as follows: Southeast-O'Neill to North Pole - O'Neill to Glennallen Switch Station 47,076,000} - Glennallen Switch Station to Gakona 5,205,000 - Gakona to Jarvis 58,886,000 - Carney to North Pole (Wood Pole) 7,136,000 Total 118,303,000 Annual 1,775,000 Northwest-O’Neill to North Pole - O'Neill to Glennallen 48,078,000 - Glennallen to Gakona 7,379,000 - Gakona to Jarvis 58,613,000 - Carney to North Pole (Wood Pole) 7,136,000 Total 121,206,000 1,818,000 Suggested Route-O’Neill to North Pole - O'Neill to Crossover at Sourdough - Crossover at Sourdough to Jarvis - Carney to North Pole (Wood Pole) 61,570,000 50,499,000 7,136,000 Total 119,205,000 1,788,000 Annual - O&M SLUG 1361 (08/09/89) XII-92 TRANSMISSION LINES - SOUTHEAST ROUTE COST ESTIMATE DETAILS UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANCLE) INSULATORS (MEDIUM ANCLE ) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 1 SOUTHEAST ROUTE QUANTITY 242 32 7a LABOR UNIT SUBTOTAL 7,000 161,000 8,500 oO 10,000 30,000 11,000 33,000 13,000 39,000 8,000 256,000 1,400 32,200 1,700 °O 1,900 5,700 2,300 6,900 3,200 9,600 1,400 338,800 210 6,720 2,000 15,000 MATERIAL WIT SUBTOTAL 14,400 1,200 15,600 oO 18,000 54,000 21,600 64,800 25,200 75,600 2,500 80,000 1,400 32,200 1,400 o 1,100 3,300 1,100 3,300 3,800 11,400 1,510 365,420 110 3,520 400 3, 00° TOTAL COST FOR 7.25 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 492,200 ° 84,000 97,800 114,600 336,000 64,400 oO 9,000 10,200 21,000 704,220 10,240 18,000 $1,962,000 $270,621 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND INSULATORS (TANGENT ) AND INSULATORS (LIGHT ANGLE) AND INSULATORS (MEDIUM ANCLE ) AND INSULATORS (HEAVY ANGLE) AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 2 SOUTHEAST ROUTE QUANTITY 38 325 43 9.8 LABOR UNIT SUBTOTAL 7,000 266,000 8.500 8,500 10,000 30,000 11,000 11,000 13,000 13,000 7,000 301,000 1,400 53,200 1,700 1,700 1,900 5.700 2,300 2,300 3,200 3,200 1,400 455,000 210 9,030 2,000 19,500 MATERIAL UNIT SUBTOTAL 14,400 547,200 15,600 15,600 18,000 54,000 21,600 21,600 25,200 25,200 1,500 64,500 1,400 53,200 1,400 1,400 1,100 3,300 1,100 1,100 3,800 3,800 1,510 490,750 110 4,730 400 3,900 TOTAL COST FOR 9.75 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 8,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 813,200 24,100 84,000 32,600 38,200 365,500 106,400 3,100 9,000 3,400 7,000 945,750 13,760 23,400 $2,469,000 $253,231 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 3 SOUTHEAST ROUTE QUANTITY 54 499 66 15.0 LABOR UNIT SUBTOTAL 7,000 378,000 8,500 76,500 10,000 20,000 11,000 oO 13,000 13,000 8,000 528,000 1,400 75,600 1,700 15,300 1,900 3,800 2,300 ° 3,200 3,200 1,400 698,600 210 13,860 2,000 30,000 MATERIAL UNIT SUBTOTAL 14,400 777,600 15,600 140,400 18,000 36,000 21,600 oO 25,200 25,200 2,500 165,000 1,400 75,600 1,400 12,600 1,100 2,200 1,100 o 3,800 3,800 1,510 753,490 110 7,260 400 6,000 TOTAL COST FOR 15 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 1,155,600 216,900 56,000 o 38,200 693,000 151,200 27,900 6,000 ° 7,000 1,452,090 21,120 36,000 $3,861,000 $257,400 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS (LICHT ANGLE) HARDWARE AND INSULATORS(MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) GROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 4 SOUTHEAST ROUTE QUANTITY 117 16 3.5 LABOR, UNIT SUBTOTAL 7,000 77,000 8,500 25,500 10,000 ° 11,000 22,000 13,000 ° 7,000 112,000 1,400 15,400 1,700 5,100 1,900 ° 2,300 4,600 3,200 o 1,400 163,800 210 3,360 2,000 7,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 158,400 15,600 46,800 18,000 ° 21,600 43,200 25,200 ° 1,500 24,000 1,400 15,400 1,400 4,200 1,100 ° 1,100 2,200 3,800 oO 1,510 176,670 110 1,760 400 1,400 TOTAL COST FOR 3.5 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 8,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 235,400 72,300 ° 65,200 o 136,000 30,800 9,300 ° 6,800 oO 340,470 5,120 8,400 $910,000 $260,000 COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 6 SOUTHEAST ROUTE LABOR MATERIAL LABOR AND MATERIAL UNIT DESCRIPTION QUANTITY UNIT SUBTOTAL UNIT SUBTOTAL UNIT SUBTOTAL X-BRACED TUBULAR STRUCTURE (TANCENT ) 4 7,000 28,000 14,400 57,600 21,400 85,600 X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 7 6,500 8,500 15,600 15,600 24,100 24,100 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) oO 10,000 o 18,000 ° 28,000 ° 3 POLE GUYED STRUCTURE(HEAVY ANCLE) ° 11,000 ° 21,600 ° 32,600 ° 3 POLE GUYED STRUCTURE(DEAD END) oO 13,000 oO 25,200 ° 38,200 o ROCK ANCHORS, (PER STRUCTURE) 5 7,000 35,000 1,500 7,500 8,500 42,500 HARDWARE AND INSULATORS (TANCENT ) 4 1,400 5,600 1,400 5,600 2,800 11,200 HARDWARE AND INSULATORS(LIGHT ANGLE) 1 1,700 1,700 1,400 1,400 3,100 3,100 HARDWARE AND INSULATORS(MEDIUM ANCLE ) ° 1,900 ° 1,100 ° 3,000 ° HARDWARE AND INSULATORS(HEAVY ANCLE) ° 2,300 ° 1,100 ° 3,400 ° HARDWARE AND INSULATORS(DEAD END) o 3,200 ° 3,800 ° 7,000 ° CONDUCTOR ASSEMBLY(RAIL 954 ACSR) 34 1,400 47,600 1,510 51,340 2,910 98,940 CROUNDING ASSEMBLY 5 210 1,050 110 550 320 1,600 R-O-W CLEARING 10 2,000 2,000 400 400 2,400 2,400 TOTAL COST FOR 1 MILE $269,000 COST/MILE $269,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE CUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANGLE) INSULATORS (MEDIUM ANGLE) INSULATORS (HEAVY ANGLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 5 SOUTHEAST ROUTE QUANTITY 28 38 28 263 38 7.9 LABOR UNIT SUBTOTAL 7,000 196,000 8,500 34,000 10,000 50,000 11,000 ° 13,000 13,000 8,000 304,000 1,400 39,200 1,700 6,800 1,900 9,500 2,300 oO 3,200 3,200 1,400 368,200 210 7,980 2,000 15,800 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 403,200 15,600 62,400 18,900 90,000 21,600 ° 25,200 25,200 2,500 95,000 1,400 39,200 1,400 5,600 1,100 5,500 1,100 o 3,800 3,800 1,510 397,130 110 4,180 400 3,160 TOTAL COST FOR 7.90 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 599,200 96,400 140,000 ° 38,200 399,000 78,400 12,400 15,000 o 7,000 765,330 12,160 18,960 $2,182,000 $276,203 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS(MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 7 SOUTHEAST ROUTE QUANTITY 137 ru 161 137 WwW 1,196 161 36.0 LABOR UNIT SUBTOTAL 7,000 959,000 8,500 68 ,000 10,000 110,000 11,000 22,000 13,000 39,000 8,000 1,288,000 1,400 191,800 1,700 13,600 1,900 20,900 2,300 4,600 3,200 9,600 1,400 1,674,400 210 33,810 2,000 71,900 MATERIAL UNIT SUBTOTAL 14,400 1,972,800 5,600 124,800 18,000 198,000 21,600 43,200 25,200 75,600 2,500 402,500 1,400 191,800 1,400 11,200 1,100 12,100 1,100 2,200 3.800 11,400 1,510 1,805,960 110 17,710 400 14,380 TOTAL COST FOR 35.95 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 2,931,800 192,800 308,000 65,200 114,600 1,690,500 383,600 24,800 33,000 6,800 21,000 3,480, 360 51,520 86,280 $9,390,000 $261,196 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE (LIGHT ANGLE) 3 POLE CUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILINCCEXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 8 SOUTHEAST ROUTE QUANTITY o 100 14 3.0 LABOR UNIT SUBTOTAL 7,000 77,000 8,500 ° 10,000 oO 11,000 33,000 13,000 oO 13,000 182,000 1,400 15,400 1,700 ° 1,900 oO 2,300 6,900 3,200 oO 1,400 140,000 210 2,940 2,000 6,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 158,400 15,600 oO 18,000 o 21,600 64,800 25,200 ° 5,000 70,000 1,400 15,400 1,400 ° 1,100 oO 1,100 3,300 3,800 oO 1,510 151,000 110 1,540 400 1,200 TOTAL COST FOR 3 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 235,400 ° ° 97,800 ° 252,000 30,800 ° ° 10,200 ° 291,000 4,480 7,200 $929,000 $309,667 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE (HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LICHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING QUANTITY ecooouunoo00o4u w as ° COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 9 SOUTHEAST ROUTE LABOR SUBTOTAL UNIT 7,000 8,500 10,000 11,000 13,000 8,000 1,400 1,700 1,900 2,300 3,200 1,400 210 2,000 35,000 40,000 47,600 COST/MILE MATERIAL SUBTOTAL UNIT 14,400 15,600 18,000 21,600 25,200 2,500 1,400 1,400 1,100 1,100 3,800 1,510 110 400 TOTAL COST FOR 1 MILE 72,000 12,500 7,000 51,340 550 400 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 LABOR AND MATERIAL UNIT SUBTOTAL 107,000 oO oO 0 0 52,500 14,000 98,940 1,600 2,400 $276,000 $276,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE CUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILINGCEXTRA LENGTH), (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X~-FRAME LINK 10 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 35 7,000 245,000 8,500 8,500 2 10,000 20,000 2 11,000 22,000 ° 13,000 ° 40 13,000 520,000 35 1,400 49,000 1 1,700 1,700 1,900 3,800 2,300 4,600 ° 3,200 oO 300 1,400 420,000 40 210 8,400 9.0 2,000 18,000 TOTAL COST FOR 9 MILES COST/MILE MATERIAL UNIT SUBTOTAL 14,400 504,000 15,600 15,600 18,000 36,000 21,600 43,200 25,200 ° 5,000 200 ,000 1,400 49,000 1,400 1,400 1,100 2,200 1,100 2,200 3,800 o 1,510 453,000 110 4,400 400 3,600 LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 749,000 24,100 56,000 65,200 oO 720,000 98,000 3,100 6,000 6,800 o 873,000 12,800 21,600 $2,636,000 $292,889 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE CUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE GCUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE ) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GCUYED TUBULAR X-FRAME LINK 11 SOUTHEAST ROUTE QUANTITY 100 14 3.0 LABOR UNIT SUBTOTAL, 7,000 91,000 8,500 oO 10,000 10,000 11,000 Oo 13,000 O 8,000 112,000 1,400 18,200 1,700 ° 1,900. 1,900 2,300 ° 3,200 Oo 1,400 140,000 210 2,940 2,000 6,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 187,200 15,600 oO 18,000 18,000 21,600 Oo 25,200 Oo 2,500 35,000 1,400 18,200 1,400 0 1,100 1,100 1,100 ° 3,800 ° 1,510 151,000 110 1,540 400 1,200 TOTAL COST FOR 3 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 278,200 0 28,000 oO oO 147,000 36,400 ° 3,000 o o 291,000 4,480 7,200 $795,000 $265,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE (LICHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE ) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENCTH), (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE) HARDWARE AND INSULATORS (HEAVY ANGLE ) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) GROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 12 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 16 7,000 112,000 8,500 8,500 o 10,000 ° ° 11,000 ° ° 13,000 ° 18 13,000 234,000 16 1,400 22,400 1 1,700 1,700 1 1,900 1,900 0 2,300 Oo o 3,200 ° 134 1,400 187,600 18 210 3,780 4.0 2,000 8,000 TOTAL COST FOR 4 MILES COST/MILE MATERIAL UNIT SUBTOTAL 14,400 230,400 15,600 15,600 18,000 ° 21,600 ° 25,200 o 5,000 90,000 1,400 22,400 1,400 1,400 1,100 1,100 1,100 ° 3,800 ° 1,510 202,340 110 1,980 400 1,600 LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 342,400 24,100 oO ° o 324,000 44,800 3,100 3,000 ° ° 389,940 5,760 9,600 $1,147,000 $286,750 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE CUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LICHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANCLE ) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X- FRAME LINK 13 SOUTHEAST ROUTE LABOR QUANTITY = UNIT SUBTOTAL 5 7,000 35,000 oO 8,500 ° o 10,000 ° oO 11,000 oO oO 13,000 ° 5 8,000 40,000 5 1,400 7,000 Oo 1,700 Oo Oo 1,900 Oo oO 2,300 Oo ° 3,200 ° 34 1,400 47,600 5 210 1,050 1.0 2,000 2,000 TOTAL COST FOR 1 MILE COST/MILE MATERIAL UNIT SUBTOTAL 14,400 72,000 15,600 oO 18,000 Oo 21,600 0 25,200 oO 2,500 12,500 1,400 7,000 1,400 o 1,100 oO 1,100 Oo 3,800 oO 1,510 51,340 110 550 400 400 LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 107,000 Oo 0 oO oO 52,500 14,000 98,940 1,600 2,400 $276,000 $276,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENGTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANCLE) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X- FRAME LINK 14 SOUTHEAST ROUTE QUANTITY 68 ae 68 575 77 17.3 LABOR UNIT SUBTOTAL 7,000 476,000 8,500 0 10,000 10,000 11,000 66,000 13,000 26,000 13,000 1,001,000 1,400 95,200 1,700 ° 1,900 1,900 2,300 13,8600 3,200 6,400 1,400 805,000 210 16,170 2,000 34,600 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 979,200 15,600 o 18,000 18,000 21,600 129,600 25,200 50,400 5,000 385,000 1,400 95,200 1,400 ° 1,100 1,100 1,100 6,600 3,800 7,600 1,510 868,250 110 8,470 400 6,920 TOTAL COST FOR 17.3 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,900) 320 2,400 SUBTOTAL 1,455,200 0 28,000 195,600 76,400 1,386,000 190,400 0 3,000 20,400 14,000 1,673,250 24,640 41,520 $5,108,000 $295,260 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE ) 3 POLE GUYED STRUCTURE (HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS (HEAVY ANGLE ) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 15 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 24 7,000 168,000 1 8,500 8,500 1 10,000 10,000 3 11,000 33,000 3 13,000 39,000 32 8,000 256,000 24 1,400 33,600 1 1,700 1,700 1 1,900 1,900 3 2,300 6,900 3 3,200 9,600 226 1,400 316,400 32 210 6,720 6.8 2,000 13,600 MATERIAL WIT SUBTOTAL 14,400 345,600 15,600 15,600 18,000 18,000 21,600 64,800 25,200 75,600 2,500 80,000 1,400 33,600 1,400 1,400 1,100 1,100 1,100 3,300 3,800 11,400 1,510 341,260 110 3,520 400 2,720 TOTAL COST FOR 6.8 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 513,600 24,100 28,000 97,800 114,600 336,000 67,200 3,100 3,000 10,200 21,000 657,660 10,240 16,320 $1,903,000 $279,853 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILINC(EXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 16 SOUTHEAST ROUTE QUANTITY 53 45 401 134 53 12.1 LABOR UNIT SUBTOTAL 7,500 337,500 8,500 8,500 11,000 33,000 11,500 23,000 14,500 29,000 13,000 689,000 1,400 63,000 1,700 1,700 1,900 5,700 2,300 4,600 3,200 6,400 1,400 561,400 800 107,200 210 11,130 2,000 24,100 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 702,000 16,800 16,800 19,200 57,600 22,800 45,600 26,400 52,8600 5,000 265,000 1,400 63,000 1,400 1,400 1,100 3,300 1,100 2,200 3,800 7,600 1,510 605,510 250 33,500 110 5,830 400 4,820 TOTAL COST FOR 12.05 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 18,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 1,039,500 25,300 90,600 68,600 81,800 954,000 126,000 3,100 9,000 6,800 14,000 1,166,910 140,700 16,960 28,920 $3,772,000 $313,029 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE (DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 17 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 12 7,500 90,000 2 8,500 17,000 2 11,000 11,000 ° 11,500 o 14,500 ° 15 8,000 120,000 1,400 16,800 2 1,700 3,400 1 1,900 1,900 ° 2,300 ° o 3,200 oO 110 1,400 154,000 37 800 29,600 15 210 3,150 3.3 2,000 6,600 MATERIAL UNIT SUBTOTAL 15,600 187,200 16,800 33,600 19,200 19,200 22,800 oO 26,400 ° 2,500 37,500 1,400 16,800 1,400 2,800 1,100 1,100 1,100 ° 3,800 ° 1,510 166,100 250 9,250 110 1,650 400 1,320 TOTAL COST FOR 3.3 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 10,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 277,200 50,600 30,200 ° ° 157,500 33,600 6,200 3,000 ° ° 320,100 38,850 4,800 7,920 $930,000 $281,818 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENCTH), (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS(MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X~-FRAME LINK 18 SOUTHEAST ROUTE LABOR, QUANTITY UNIT SUBTOTAL 108 7,500 810,000 3 8,500 25,500 16 11,000 176,000 5 11,500 57,500 3 14,500 43,500 135 13,000 1,755,000 108 1,400 151,200 3 1,700 5.100 16 1,900 30,400 5 2,300 11,500 3 3,200 9,600 1,020 1,400 1,428,000 340 800 272,000 135 210 28,350 30.7 2,000 61,300 MATERIAL UNIT SUBTOTAL 15,600 1,684,800 16,600 50,400 19,200 307,200 22,800 114,000 26,400 79,200 5,000 675,000. 1,400 151,200 1,400 4,200 1,100 17,600 1,100 5,500 3,800 11,400 1,510 1,540,200 250 85,000 110 14,850 400 12,260 TOTAL COST FOR 30.65 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 18,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 2,494,800 75,900 483,200 171,500 122,700 2,430,000 302,400 9,300 48,000 17,000 21,000 2,968,200 357,000 43,200 73,560 $9,618,000 $313,801 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LICHT ANCLE) HARDWARE AND INSULATORS(MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 19 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 20 7,500 150,000 8,500 oO 3 11,000 33,000 11,500 11,500 ° 14,500 o 24 7,000 168,000 20 1,400 28,000 oO 1,700 oO 3 1,900 5,700 1 2,300 2,300 ° 3,200 ° 175 1,400 245,000 59 800 47,200 24 210 5,040 5.3 2,000 10,500 MATERIAL UNIT SUBTOTAL 15,600 312,000 16,800 oO 19,200 57,600 22,800 22,800 26,400 oO 1,500 36,000 1,400 28,000 1,400 0 1,100 3,300 1,100 1,100 3,800 0 1,510 264,250 250 14,750 110 2,640 400 2,100 TOTAL COST FOR 5.25 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 8,500 2,800 3,100 3,000 3.400 7,000 2,910 1,050 320 2,400 SUBTOTAL 462,000 ° 90.600 34,300 ° 204,000 56,000 oO 9,000 3,400 o 509,250 61,950 7,680 12,600 $1,451,000 $276,381 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE (LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILINC(MULTIBLE PILES), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 20 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBT( 15 7,500 "1 8,500 ° 11,000 Z 11,500 2 14,500 1 19 15,000 28 15 1,400 2 1 1,700 ° 1,900 2 2,300 1 3,200 142 1,400 19) 48 600 3 19 210 4.3 2,000 OTAL 2,500 8,500 0 3,000 4,500 5,000 1,000 1,700 ° 4,600 3,200 8,800 8,400 3,990 8,500 MATERIAL UNIT SUBTOTAL 15,600 234,000 16,800 16,800 19,200 0 22,800 45,600 26,400 26,400 7,500 142,500 1,400 21,000 1,400 1,400 1,100 ° 1,100 2,200 3,800 3,600 1,510 214,420 250 12,000 110 2,090 400 1,700 TOTAL COST FOR 4.25 MILES COsT/ MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 22,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 346,500 25,300 oO 68,600 40,900 427,500 42,000 3,100 ° 6,800 7,000 413,220 50,400 6,080 10,200 $1,448,000 $340,706 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS (LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 21 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 13 7,500 97,500 a 8,500 8,500 1 11,000 11,000 ° 11,500 ° ° 14,500 Oo 15 7,000 105,000 13 1,400 18,200 1 1,700 1,700 1 1,900 1,900 ° 2,300 0 ° 3,200 oO 107 1,400 149,800 36 800 28,800 15 210 3,150 3.2 2,000 6,400 MATERIAL UNIT SUBTOTAL 15,600 202,800 16,800 16,800 19,200 19,200 22,800 oO 26,400 ° 1,500 22,500 1,400 18,200 1,400 1,400 1,100 1,100 1,100 ° 3,800 ° 1,510 161,570 250 9,000 110 1,650 400 1,280 TOTAL COST FOR 3.2 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 8,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 300,300 25,300 30,200 ° o 127,500 36,400 3,100 3,000 ° ° 311,370 37,800 4,800 7,680 $887,000 $277,188 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING PRE DRILLED (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) GROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 22 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 98 7,500 735,000 6 8,500 51,000 8 11,000 88,000 3 11,500 34,500 3 14,500 43,500 118 18,000 2,124,000 98 1,400 137,200 6 1,700 10, 200 8 1,900 15,200 3 2,300 6,900 3 3,200 9,600 892 1,400 1,248,800 298 800 238,400 118 210 24,780 26.8 2,000 53,600 MATERIAL UNIT SUBTOTAL 15,600 1,528,800 16,800 100,800 19,200 153,600 22,800 68,400 26,400 79,200 5,000 590,000 1,400 137,200 1,400 8,400 1,100 8,800 1,100 3,300 3,800 11,400 1,510 1,346,920 250 74,500 110 12,980 400 10,720 TOTAL COST FOR 26.8 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 23,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 2,263,800 151,800 241,600 102,900 122,700 2,714,000 274,400 18,600 24,000 10,200 21,000 2,595,720 312,900 37,760 64,320 $8,956,000 $334,179 TRANSMISSION LINES - NORTHWEST ROUTE COST ESTIMATE DETAILS UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE CGUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 1 NORTHWEST ROUTE QUANTITY 43 4 55 43 384 55 12.0 LABOR UNIT SUBTOTAL 7,000 301,000 8,500 34,000 10,000 40,000 11,000 11,000 13,000 39,000 8,000 440,000 1,400 60,200 1,700 6,800 1,900 7,600 2,300 2,300 3,200 9,600 1,400 537,600 210 11,550 2,000 24,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 619,200 15,600 62,400 18,000 72,000 21,600 21,600 25,200 75,600 2,500 137,500 1,400 60,200 1,400 5,600 1,100 4,400 1,100 1,100 3,800 11,400 1,510 579,840 110 6,050 400 4,800 TOTAL COST FOR 12 MILES LABOR AND MATERIAL UNIT. 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2.910 320 2,400 SUBTOTAL 920,200 96,400 112,000 32,600 114,600 577,500 120,400 12,400 12,000 3,400 21,000 1,117,440 17,600 28,800 $3,186,000 $265,500 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE QUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LICHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE) HARDWARE AND INSULATORS(HEAVY ANCLE ) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 2 NORTHWEST ROUTE QUANTITY 20 18 144 20 4.5 LABOR UNIT — SUBTOTAL 7,000 126,000 8,500 o 10,000 20,000 11,000 ° 13,000 ° 7,000 140,000 1,400 25,200 1,700 3,400 1,900 ° 2,300 4,600 3,200 ° 1,400 201,600 210 4,200 2,000 9,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 259,200 15,600 ° 18,000 36,000 21,600 ° 25,200 ° 1,500 30,000 1,400 25,200 1,400 2,800 1,100 °o 1,100 2,200 3,600 ° 1,510 217,440 110 2,200 400 1,800 TOTAL COST FOR 4.5 MILES UNIT 21,400 24,100 28,000 32,600 38,200 6,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 LABOR AND MATERIAL SUBTOTAL 385,200 ° 56,000 ° 0 170,000 50,400 6,200 ° 6,800 o 419,040 6,400 10,800 $1,111,000 $246,889 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE CUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANGLE) INSULATORS (MEDIUM ANCLE ) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 3 NORTHWEST ROUTE QUANTITY 117 16 3.5 LABOR UNIT SUBTOTAL 7,000 91,000 8,500 17,000 10,000 10,000 11,000 oO 13,000 o 8,000 128,000 1,400 18,200 1,700 3,400 1,900 1,900 2,300 0 3,200 O 1,400 163,800 210 3,360 2,000 7,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 187,200 15,600 31,200 18,000 18,000 21,600 ° 25,200 ° 2,500 40,000 1,400 18,200 1,400 2,800 1,100 1,100 1,100 oO 3,800 ° 1,510 176,670 110 1,760 400 1,400 TOTAL COST FOR 3.5 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 278,200 48,200 28,000 ° ° 168,000 36,400 6,200 3,000 o ° 340,470 5,120 8,400 $922,000 $263,429 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND INSULATORS (TANGENT ) AND INSULATORS (LIGHT ANGLE) AND INSULATORS (MEDIUM ANCLE ) AND INSULATORS (HEAVY ANGLE) AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 4 NORTHWEST ROUTE QUANTITY 24 232 31 7.0 LABOR UNIT SUBTOTAL 7,000 168,000 6,500 34,000 10,000 20,000 11,000 11,000 13,000 ° 7,000 217,000 1,400 33,600 1,700 6,800 1,900 3,800 2.300 2,300 3,200 o 1,400 324,800 210 6,510 2,000 14,000 MATERIAL UNIT — SUBTOTAL 14,400 345,600 15,600 62,400 18,000 36,000 21,600 21,600 25,200 ° 1,500 46,500 1,400 33,600 1,400 5,600 1,100 2,200 1,100 1,100 3,800 oO 1,510 350,320 110 3,410 400 2,800 TOTAL COST FOR 7 MILES COST/MILE UNIT 21,400 24,100 28,000 32,600 38,200 8,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 LABOR AND MATERIAL SUBTOTAL 513,600 96,400 56,000 32,600 o 263,500 67,200 12,400 6,000 3,400 ° 675,120 9,920 16,800 $1,753,000 $250,429 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, X-BRACE, (PER STRUCTURE) SINGLE STEEL POLE STRUCTURE (TANCENT ) SINGLE STEEL POLE STRUCTURE(LICHT ANGLE) SINGLE STEEL POLE STRUCTURE(MEDIUM ANCLE) SINGLE STEEL POLE STRUCTURE(HEAVY ANCLE) SINGLE STEEL POLE STRUCTURE(DEAD END) H-PILING, SINCLE POLE, (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS (LICHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME & SINCLE STEEL POLE LINK 5 NORTHWEST ROUTE QUANTITY 36 wo 546 73 16.4 LABOR UNIT SUBTOTAL 7,000 252,000 8,500 25,500 10,000 10,000 11,000 11,000 13,000 13,000 8,000 336,000 8,000 176,000 9,500 28,500 11,000 44,000 12,500 12,500 14,500 14,500 10,000 310,000 1,400 81,200 1,700 10,200 1,900 9,500 2,300 4,600 3,200 6,400 1,400 764,400 210 15,330 2,000 32,800 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 518,400 15,600 46,800 18,000 18,000 21,600 21,600 25,200 25,200 2,500 105,000 19,000 418,000 20,000 60,000 22,000 88.000 25,000 25,000 29,000 29,000 3,500 108,500 1,400 81,200 1,400 8,400 1,100 5,500 1,100 2,200 3,800 7,600 1,510 824,460 110 8,030 400 6,560 TOTAL COST FOR 16.4 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 27,000 29,500 33,000 37,500 43,500 13,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 770,400 72,300 28,000 32,600 38,200 441,000 594,000 88,500 132,000 37,500 43,500 418,500 162,400 18,600 15,000 6,800 14,000 1,588,860 23,360 39, 360 $4,565,000 $278,354 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE (LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE(HEAVY ANCLE) 3 POLE CUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CGUYED TUBULAR X-FRAME LINK 6 NORTHWEST ROUTE LABOR QUANTITY UNIT — SUBTOTAL 2 7,000 63,000 1 8,500 8,500 1 10,000 10,000 1 11,000 11,000 3 13,000 39,000 15 7,000 105,000 2 1,400 12,600 1 1,700 1,700 1 1,900 1,900 1 2,300 2,300 3 3,200 9,600 100 1,400 140,000 15 210 3,150 3.0 2,000 6,000 MATERIAL UNIT — SUBTOTAL 14,400 129,600 15,600 15,600 18,000 18,000 21,600 21,600 25,200 75,600 1,500 22,500 1,400 12,600 1,400 1,400 1,100 1,100 1,100 1,100 3,800 11,400 1,510 151,000 110 1,650 400 1,200 TOTAL COST FOR 3 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 8,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 192,600 24,100 28,000 32,600 114,600 127,500 25,200 3,100 3,000 3,400 21,000 291,000 4,800 7,200 $878,000 $292,667 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 7 NORTHWEST ROUTE LABOR QUANTITY UNIT SUBTOTAL 116 7,000 812,000 7 8,500 59,500 17 10,000 170,000 4 11,000 44,000 3 13,000 39,000 147 8,000 1,176,000 116 1,400 162,400 Z 1,700 11,900 7 1,900 32,300 4 2,300 9,200 3 3,200 9,600 1,078 1,400 1,509,200 147 210 30,870 32.4 2,000 64,800 MATERIAL UNIT — SUBTOTAL 14,400 1,670,400 15,600 109,200 18,000 306,000 21,600 86,400 25,200 75,600 2,500 367,500 1,400 162,400 1,400 9,800 1,100 18,700 1,100 4,400 3,800 11,400 1,510 1,627,780 110 16,170 400 12,960 TOTAL COST FOR 32.4 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2.910 320 2,400 SUBTOTAL 2,482,400 168,700 476,000 130,400 114,600 1,543,500 324,800 21,700 51,000 13,600 21,000 3,136,980 47,040 77,760 $8,609,000 $265,710 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND INSULATORS (TANGENT ) AND INSULATORS(LIGHT ANCLE) AND INSULATORS (MEDIUM ANCLE) AND INSULATORS (HEAVY ANCLE) AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 8 NORTHWEST ROUTE LABOR QUANTITY UNIT SUBTOTAL 8 7,000 56,000 ° 8,500 o o 10,000 o ° 11,000 ° 7 13,000 13,000 9 7,000 63,000 8 1,400 11,200 o 1,700 oO °o 1,900 ° oO 2,300 o 1 3,200 3,200 67 1,400 93,800 9 210 1,890 2.0 2,000 4,000 MATERIAL UNIT — SUBTOTAL 14,400 115,200 15,600 ° 18,000 0 21,600 ° 25.200 25,200 1,500 13,500 1,400 11,200 1,400 ° 1,100 ° 1,100 ° 3,800 3,800 1,510 101,170 110 990 400 800 TOTAL COST FOR 2 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 8,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 171,200 ° oO o 38,200 76,500 22,400 ° ° ° 7,000 194,970 2,880 4,800 $518,000 $259,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANGLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) GROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 9 NORTHWEST ROUTE LABOR QUANTITY UNIT 7,000 8,500 10,000 11,000 13,000 6,000 1,400 1,700 1,900 2,300 3,200 1,400 210 2.0 2,000 cooowwcno oO oa ~“ SUBTOTAL 63,000 72,000 2,600 93,800 1,890 4,000 MATERIAL UNIT SUBTOTAL 14,400 129,600 15,600 0 18,000 0 21,600 o 25,200 o 2,500 22,500 1,400 12,600 1,400 o 1,100 oO 1,100 ° 3,800 ° 1,510 101,170 110 990 400 600 TOTAL COST FOR 2 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 192,600 0 o o ° 94,500 25,200 o oO oO °o 194,970 2,880 4,800 $515,000 $257,500 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILINCCEXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X~-FRAME LINK 10 NORTHWEST ROUTE QUANTITY 39 44 39 333 44 10.0 LABOR UNIT SUBTOTAL 7,000 273,000 8,500 ° 10,000 oO 11,000 o 13,000 65,000 13,000 572,000 1,400 54,600 1,700 ° 1,900 ° 2,300 ° 3,200 16,000 1,400 466,200 210 9,240 2,000 20,000 MATERIAL UNIT SUBTOTAL 14,400 561,600 15,600 ° 18,000 ° 21,600 °O 25,200 126,000 5,000 220,000 1,400 54,600 1,400 ° 1,100 ° 1,100 ° 3,800 19,000 1,510 502,830 110 4,840 400 4,000 TOTAL COST FOR 10 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 634,600 ° 0 ° 191,000 792,000 109,200 oO ° ° 35,000 969,030 14,080 24,000 $2,969,000 $296,900 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) (PER STRUCTURE) H-PILING, HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 11 NORTHWEST ROUTE QUANTITY 400 53 12.0 LABOR UNIT SUBTOTAL 7,000 329,000 8,500 17,000 10,000 30,000 11,000 Oo 13,000 13,000 8,000 424,000 1,400 65,800 1,700 3,400 1,900 5,700 2,300 0 3,200 3,200 1,400 560,000 210 11,130 2,000 24,000 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 676,800 15,600 31,200 18,000 54,000 21,600 ° 25,200 25,200 2,500 132,500 1,400 65,800 1,400 2,800 1,100 3,300 1,100 oO 3,800 3,800 1,510 604,000 110 5,830 400 4,800 TOTAL COST FOR 12 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 10,500 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 1,005,800 48,200 84,000 oO 38,200 556,500 131,600 6,200 9,000 oO 7,000 1,164,000 16,960 28,800 $3,096,000 $258,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENCTH), (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS(MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 12 NORTHWEST ROUTE QUANTITY 64 670 91 20.1 LABOR UNIT — SUBTOTAL 7,000 588,000 8,500 17,000 10,000 20,000 11,000 22,000 13,000 13,000 13,000 1,183,000 1,400 117,600 1,700 3,400 1,900 3,600 2,300 4,600 3,200 3,200 1,400 938,000 210 19,110 2,000 40,240 COST/MILE MATERIAL UNIT SUBTOTAL 14,400 1,209,600 15,600 31,200 18,000 36,000 21,600 43,200 25,200 25,200 5,000 455,000 1,400 117,600 1,400 2,800 1,100 2,200 1,100 2,200 3,800 3,800 1,510 1,011,700 110 10,010 400 8,048 TOTAL COST FOR 20.12 MILES LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 1,797,600 48,200 56,000 65,200 38,200 1,638,000 235,200 6,200 6,000 6,600 7,000 1,949,700 29,120 48,288 $5,932,000 $294,831 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE (LICHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENGTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE) INSULATORS (HEAVY ANGLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X~-FRAME LINK 12A NORTHWEST ROUTE PUMP 11 TAP SINGLE CIRCUIT QUANTITY onvovnoso0 oO = 120 1.8 LABOR UNIT SUBTOTAL 7,000 42,000 8,500 oO 10,000 10,000 11,000 oO 13,000 26,000 13,000 117,000 1,400 8,400 1,700 o 1,900 1,900 2,300 oO 3,200 6,400 1,400 168,000 210 1,890 2,000 3,600 MATERIAL UNIT SUBTOTAL 14,400 86,400 15,600 o 18,000 18,000 21,600 0 25,200 50,400 5,000 45,000 1,400 8,400 1,400 Oo 1,100 1,100 1,100 0 3,800 7,600 1,510 161,200 110 990 400 720 TOTAL COST FOR 1.8 MILES COST/MILE LABOR AND MATERIAL UNIT 21,400 24,100 28,000 32,600 38,200 18,000 2,800 3,100 3,000 3,400 7,000 2,910 320 2,400 SUBTOTAL 128,400 0 28,000 0 76,400 162,000 16,800 ° 3,000 o 14,000 349,200 2,880 4,320 $785,000 $436,111 SINGLE SINCLE 2 POLE 2 POLE 2 POLE H-PILING, STEEL STEEL STEEL STEEL STEEL HARDWARE AND HARDWARE AND HARDWARE AND HARDWARE AND HARDWARE AND CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHOW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING UNIT DESCRIPTION POLE STRUCTURE (TANGENT ) POLE STRUCTURE (LIGHT ANCLE) STRUCTURE (MEDIUM ANGLE) STRUCTURE (HEAVY ANGLE) STRUCTURE (DEAD END) (PER STRUCTURE) INSULATORS (TANCENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANCLE) INSULATORS (HEAVY ANCLE) INSULATORS (DEAD END) COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE SINCLE STEEL POLE LINK 13 NORTHWEST ROUTE(DOUBLE CIRCUIT) QUANTITY 48 53 48 779 130 53 11.7 LABOR UNIT SUBTOTAL 10,000 480,000 11,500 11,500 13,000 13,000 14,500 14,500 17,000 34,000 13,000 689,000 1,400 67,200 2,500 2,500 3,000 3,000 3,300 3,300 4,500 9,000 1,400 1,090,600 600 104,000 210 11,130 2,000 23,400 COST/MILE MATERIAL UNIT SUBTOTAL 21,000 1,008,000 22,000 22,000 24,000 24,000 29,000 29,000 33,500 67,000 5,000 265,000 2,800 134,400 2,800 2,800 2,200 2,200 2,200 2,200 7,600 15,200 1,510 1,176,290 250 32,500 110 5.830 400 4,680 TOTAL COST FOR 11.7 MILES LABOR AND MATERIAL UNIT — SUBTOTAL 31,000 1,488,000 33,500 33,500 37,000 37,000 43,500 43,500 50,500 101,000 18,000 954,000 4,200 201,600 5,300 5,300 5,200 5,200 5,500 5,500 12,100 24,200 2,910 2,266,890 1,050 136,500 320 16,960 2,400 28,080 $5,347,000 $457,009 SINCLE SINCLE 2 POLE 2 POLE 2 POLE UNIT DESCRIPTION STEEL POLE STRUCTURE (TANCENT ) STEEL POLE STRUCTURE(LICHT ANCLE) STEEL STRUCTURE (MEDIUM ANGLE) STEEL STRUCTURE (HEAVY ANCLE) STEEL STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS (LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR \-FRAME LINK 13A NORTHWEST ROUTE CLKONA JCT. TAP(DOUBLE CIRCUIT) QUANTITY ecco oC CCC COCO OC OO CO Oo LABOR. UNIT 10,000 11,500 13,000 14,500 17,000 10,000 1,400 2,500 3,000 3,300 4,500 1,400 800 210 2,000 SUBTOTAL cooeo oo oC OC OC OOO Oo MATERIAL UNIT 21,000 22,000 24,000 29,000 33,500 3,500 2,800 2,800 2,200 2,200 7,600 1,510 250 110 400 SUBTOTAL (|) TOTAL COST FOR O MILES COST/MILE LABOR AND MATERIAL UNIT SUBTOTAL 31,000 33,500 37,000 43,500 50,500 13,500 4,200 5,300 5,200 5,500 12,100 2,910 1,050 320 2,400 cooo ooo OC OOOO OO $o $o UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE CUYED STRUCTURE(MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(CEXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANGLE ) INSULATORS (HEAVY ANGLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHGW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 14 NORTHWEST ROUTE QUANTITY 34 29 255 85 34 The) LABOR UNIT SUBTOTAL 7,500 217,500 8,500 34,000 11,000 o 11,500 o 14,500 14,500 13,000 442,000 1,400 40,600 1,700 6,800 1,900 o 2,300 ° 3,200 3,200 1,400 357,000 800 68,000 210 7,140 2,000 15,300 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 452,400 16,800 67,200 19,200 ° 22,800 oO 26,400 26,400 5,000 170,000 1,400 40,600 1,400 5,600 1,100 ° 1,100 0 3,800 3,800 1,510 385,050 250 21,250 110 3,740 400 3,060 TOTAL COST FOR 7.65 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 18,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 669,900 101,200 ° oO 40,900 612,000 81,200 12,400 ° ° 7,000 742,050 89,250 10,680 18,360 $2,385,000 $311,765 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(MULTIBLE PILES), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANCENT ) INSULATORS (LIGHT ANGLE) INSULATORS (MEDIUM ANCLE ) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X~-FRAME LINK 15 NORTHWEST ROUTE QUANTITY 200 67 27 6.0 LABOR UNIT SUBTOTAL 7,500 157,500 8,500 8,500 11,000 22,000 11,500 23,000 14,500 14,500 15,000 405,000 1,400 29,400 1,700 1,700 1,900 3,800 2,300 4,600 3,200 3,200 1,400 280,000 800 53,600 210 5.670 2,000 12,000 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 327,600 16,800 16,800 19,200 38,400 22,800 45,600 26,400 26,400 7,500 202,500 1,400 29,400 1,400 1,400 1,100 2,200 1,100 2,200 3,800 3,800 1,510 302,000 250 16,750 110 2,970 400 2,400 TOTAL COST FOR 6 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 22,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 485,100 25,300 60,400 68,600 40,900 607,500 58,800 3,100 6,000 6,800 7,000 582,000 70,350 8,640 14,400 $2,045,000 $340,833 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILINC(EXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANGLE) INSULATORS (MEDIUM ANCLE) INSULATORS (HEAVY ANGLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 16 NORTHWEST ROUTE QUANTITY 56 45 420 140 56 12.6 LABOR UNIT SUBTOTAL 7,500 337,500 8,500 8,500 11,000 55,000 11,500 34,500 14,500 29,000 13,000 728,000 1,400 63,000 1,700 1,700 1,900 5,700 2,300 6,900 3,200 6,400 1,400 588,000 800 112,000 210 11,760 2,000 25,200 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 702,000 16,800 16,800 19,200 96,000 22,800 68,400 26,400 52,800 5,000 280,000 1,400 63,000 1,400 1,400 1,100 3,300 1,100 3,300 3,800 7,600 1,510 634,200 250 35,000 110 6,160 400 5,040 TOTAL COST FOR 12.60 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 18,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 1,039,500 25,300 151,000 102,900 81,800 1,008,000 126,000 3,100 9,000 10,200 14,000 1,222,200 147,000 17,920 30,240 $3,988,000 $316,508 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING(MULTIBLE PILES), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANGLE) INSULATORS (MEDIUM ANCLE ) INSULATORS (HEAVY ANCLE ) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 17 NORTHWEST ROUTE LABOR QUANTITY UNIT SUBTOTAL 3 7,500 22,500 1 8,500 8,500 1 11,000 11,000 ° 11,500 oO ° 14,500 0 5 15,000 75,000 3 1,400 4,200 1 1,700 1,700 1 1,900 1,900 ° 2,300 oO ° 3,200 ° 34 1,400 47,600 12 800 9,600 5 210 1,050 1.0 2,000 2,000 MATERIAL UNIT SUBTOTAL 15,600 46,800 16,800 16,800 19,200 19,200 22,800 ° 26,400 ° 7,500 37,500 1,400 4,200 1,400 1,400 1,100 1,100 1,100 ° 3,800 ° 1,510 51,340 250 3,000 110 550 400 400 TOTAL COST FOR 1 MILE COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 22,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 69,300 25,300 30,200 o oO 112,500 8,400 3,100 3,000 Oo o 98.940 12,600 1,600 2,400 $367,000 $367,000 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING(EXTRA LENCTH), (PER STRUCTURE) HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE AND AND AND AND AND INSULATORS (TANGENT ) INSULATORS (LICHT ANCLE) INSULATORS (MEDIUM ANCLE ) INSULATORS (HEAVY ANCLE) INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 18 NORTHWEST ROUTE LABOR QUANTITY UNIT — SUBTOTAL 4 7,500 30,000 2 8,500 17,000 ° 11,000 o Oo 11,500 ° ° 14,500 ° 6 13,000 78,000 4 1,400 5,600 2 1,700 3,400 o 1,900 ° ° 2,300 ° o 3,200 ° 40 1,400 56,000 4 800 11,200 6 210 1,260 1.2 2,000 2,400 MATERIAL UNIT SUBTOTAL 15,600 62,400 16,800 33,600 19,200 ° 22,800 ° 26,400 °o 5,000 30,000 1,400 5,600 1,400 2,800 1,100 ° 1,100 ° 3,800 ° 1,510 60,400 250 3,500 110 660 400 480 TOTAL COST FOR 1.2 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 18,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 92,400 50,600 ° o o 108 ,000 11,200 6,200 ° ° ° 116,400 14,700 1,920 2,880 $404,000 $336,667 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE (HEAVY ANGLE) 3 POLE QGUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LICHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHGW ASSEMBBLY(3/8 E£.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X-FRAME LINK 19 NORTHWEST ROUTE QUANTITY 157 53 21 4:7 LABOR UNIT SUBTOTAL 7,500 120,000 8,500 17,000 11,000 33,000 11,500 oO 14,500 ° 8,000 168,000 1,400 22,400 1,700 3,400 1,900 5,700 2,300 0 3,200 o 1,400 219,800 800 42,400 210 4,410 2,000 9,400 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 249,600 16,800 33,600 19,200 57,600 22,800 ° 26,400 oO 2,500 52,500 1,400 22,400 1,400 2,800 1,100 3,300 1,100 oO 3,800 ° 1,510 237,070 250 13,250 110 2,310 400 1,880 TOTAL COST FOR 4.7 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 10,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 369,600 50,600 90,600 0 ° 220,500 44,800 6,200 9,000 Oo Oo 456,870 55,650 6,720 11,280 $1,322,000 $281,277 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE (LICHT ANGLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE CUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANCLE) HARDWARE AND INSULATORS (HEAVY ANGLE ) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCGW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 20 NORTHWEST ROUTE QUANTITY ° oO 14 1 104 35 14 3.1 LABOR UNIT SUBTOTAL 7,500 82,500 8,500 6,500 11,000 o 11,500 ° 14,500 29,000 7,000 98,000 1,400 15,400 1,700 1,700 1,900 ° 2,300 ° 3,200 6,400 1,400 145,600 800 28,000 210 2,940 2,000 6,200 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 171,600 16,800 16,800 19,200 ° 22,800 o 26,400 52,800 1,500 21,000 1,400 15,400 1,400 1,400 1,100 ° 1,100 ° 3,800 7,600 1,510 157,040 250 8.750 110 1,540 400 1,240 TOTAL COST FOR 3.1 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30, 200 34,300 40,900 8,500 2,800 3,100 3,000 3,400 7,000 2.910 1,050 320 2,400 SUBTOTAL 254,100 25,300 0 ° 81,800 119,000 30,800 3.100 ° ° 14,000 302,640 36,750 4,480 7,440 $879,000 $283,548 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS (LICHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X~-FRAME LINK 21 NORTHWEST ROUTE QUANTITY = NN 20 15 147 49 20 4.4 LABOR UNIT SUBTOTAL 7,500 112,500 8,500 17,000 11,000 22,000 11,500 11,500 14,500 ° 8,000 160,000 1,400 21,000 1,700 3,400 1,900 3,800 2,300 2,300 3,200 ° 1,400 205,800 800 39,200 210 4,200 2,000 8,800 COST/MILE MATERIAL UNIT — SUBTOTAL 15,600 234,000 16,800 33,600 19,200 38,400 22,800 22,800 26,400 ° 2,500 50,000 1,400 217000 1,400 2,800 1,100 2,200 1,100 1,100 3,800 ° 1,510 221,970 250 12,250 110 2,200 400 1,760 TOTAL COST FOR 4.4 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30, 200 34,300 40,900 10,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 346,500 50,600 60,400 34,300 o 210,000 42,000 6,200 6,000 3,400 ° 427,770 51,450 6,400 10,560 $1,256,000 $285,455 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANCLE) 3 POLE QUYED STRUCTURE(MEDIUM ANCLE) 3 POLE CUYED STRUCTURE(HEAVY ANGLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING,PRE DRILLED (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANGLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 22 NORTHWEST ROUTE QUANTITY 268 18 13 312 268 18 13 2,361 787 312 71.0 LABOR UNIT SUBTOTAL 7,500 2,010,000 6,500 153,000 11,000 143,000 11,500 69,000 14,500 101,500 18,000 5,616,000 1,400 375,200 1,700 30,600 1,900 24,700 2,300 13,800 3,200 22,400 1,400 3,305,400 800 629,600 210 65,520 2,000 142,000 MATERIAL UNIT — SUBTOTAL 15,600 4,180,800 16,800 302,400 19,200 249,600 22,800 136,800 26,400 184,800 5,000 1,560,000 1,400 375.200 1,400 25,200 1,100 14,300 1,100 6,600 3,800 26,600 1,510 3,565,110 250 = 196,750 110 34,320 400 28,400 TOTAL COST FOR 71 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 23,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 6,190,800 455,400 392,600 205,600 286,300 7,176,000 750,400 55,800 39,000 20,400 49,000 6,870,510 826,350 99,840 170,400 $23,589,000 $332,239 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANCLE) HARDWARE AND INSULATORS (HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHGW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 23 NORTHWEST ROUTE QUANTITY 90 as we 99 90 747 249 99 22.5 LABOR UNIT SUBTOTAL 7,500 675,000 8,500 8,500 11,000 33,000 11,500 23,000 14,500 43,500 8,000 792,000 1,400 126,000 1,700 1,700 1,900 5,700 2,300 4,600 3,200 9,600 1,400 1,045,800 800 199,200 210 20,790 2,000 44,900 COST/MILE MATERIAL UNIT SUBTOTAL 15,600 1,404,000 16,800 16,600 19,200 57,600 22,800 45,600 26,400 79,200 2,500 247,500 1,400 126,000 1,400 1,400 1,100 3,300 1,100 2,200 3,800 11,400 1,510 1,127,970 250 62,250 110 10,890 400 8,980 TOTAL COST FOR 22.45 MILES LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 10,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 2,079,000 25,300 90,600 68,600 122,700 1,039,500 252,000 3,100 9,000 6,800 21,000 2,173,770 261,450 31,680 53,680 $6,238,000 $277,862 COST ESTIMATE ALASKA POWER AUTHORITY APA NORTHEAST INTERTIE CARNEY TO NORTH POLE 138 KV WOOD TRANSMISSION LINE SINGLE POLE WITH FUTURE/UB LABOR MATERIAL LABOR AND MATERIAL UNIT DESCRIPTION QUANTITY UNIT SUBTOTAL UNIT SUBTOTAL UNIT SUBTOTAL WOOD POLE (TANCENT W/OHCW,80°- H1) 366 2,500 915,000 2,000 732,000 4,500 1,647,000 WOOD POLE (DEADEND/HEAVY ANGLE W/ OHCW 85°- H2) 22 3,000 66,000 2,300 50,600 5,300 116,600 HARDWARE AND INSULATORS (TANCENT ) 366 1,000 366,000 3,300 1,207,800 4,300 1,573,800 HARDWARE AND INSULATORS (DEADEND/HEAVY ANGLE ) 22 3,000 66,000 4,000 88,000 7,000 154,000 CONDUCTOR ASSEMBLY(DRAKE 795 AAC) 366 2,000 732,000 1,540 563,640 3,540 1,295,640 OHCW ASSEMBBLY(3/8 E.H.S.STEEL) 122 600 97,600 250 30,500 1,050 128,100 GROUNDING ASSEMBLY 388 210 61,480 110 42,680 320 124,160 RIGHT OF WAY CLEARING 22 6,000 132,000 ° ° 6,000 132,000 SUBTOTAL TOTAL COST 22 MILES $5,171,000 COST PER MILE 235,045 XIll. SCHEDULE POWER Engineers, Incorporated aa ALASKA POWER AUTHORITY a NORTHEAST TRANSMISSION INTERTIE i NOTICE TO PROCEED (ER ENGINEERS, Inc 7 see roe ne 387989 [1990 7390 [1994 3391 | 1990 qos | 1985, 1993 [1994 cn ree Tan [ape [oar Te Tax [ave Tsar Toor [rv [vec | san Tree Town Tarn Tuay Ton [wx [ave [ser [ocr [nov [oec [van [FEB [wan [opm [ear [on | ma [WG [SEP [ocr [wow | pec | an [FES [WA] Om [may [ww] an] ame [SEP | OCT [MOV] beCL aan [FEB [wan [OPA [ea [ANI [we [SEPT oer [ov] vee [ae oe an a TTT me TST TASK PROJECT INITIATION 3a it | ; | {ped | | | | Hd 1 atl |e 1 sl | ) | | | PHASE I | HITT! | ENVIRONMENTAL SERVICES TASK DATA ACQUISTTION/PEAMITS TASK ROUTING § SITING/GEOTECH INVESTIGATION TASK — ENVIRONMENTAL STUDIES | | | PRELIMINARY ENGINEERING TASK ENGINEERING STUDIES TASK — PRELIMINARY DESIGN TASK PHASE I REVIEW | | | | | | | | | | | | | | ] | | | t | | T | 1 | | | | | PHASE II LANDS SERVICES TASK — LANDS INITIATION TASK PRELIMINARY ACTIVITIES TASK NEGOTIATIONS | LINE DESIGN TASK FIELD ACTIVITIES TASK — LINE DESIGN TASK — STRUCTURE DETAILS TASK STRUCTURE SPOTTING TASK — STRUCTURE STAKING TASK LINE REVIEW & CONSTR ACTIVITY STATION DESIGN TASK — MAJOR EQUIPMENT TASK SITE INVESTIGATION TASK — STATION LAYOUT TASK INSTR & RELAYING TASK — SCADA & COMM TASK STRUCTURES TASK STATION REVIEW & CONSTR ACTIVITY PHASE IIT PROCUREMENT CONSTRUCTION MGHT TASK CM INITIATION TASK — CONTRACTOR SELECTION TASK — MOBILIZATION TASK TESTING & STARTUP TASK — CONSTRUCTION MANAGEMENT | | | may | wn ] we | aus | sep [oct [nov | dec | san [FEB | man [APR T May [JUN | JUL | AUG | SEP | OCT | NOV | OC | JAN | FEB | WAR | APA [MAY | JUN AL | AUG | SEP | OCT | NOV WAN | FEB | MAR | APR $98 1989 11990 4990 [199% saa | 1992 3992 ] 1993, 3993 [1994 | | | | | | 1 MAY | JUN ML | AUG XII-1 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE QUYED STRUCTURE(MEDIUM ANCLE) 3 POLE QUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING PRE DRILLED (PER STRUCTURE) HARDWARE AND INSULATORS (TANCENT ) HARDWARE AND INSULATORS(LICHT ANGLE) HARDWARE AND INSULATORS(MEDIUM ANCLE) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X-FRAME LINK 24 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 96 7,500 720,000 9 8,500 76,500 6 11,000 66,000 2 11,500 23,000 2 14,500 29,000 115 18,000 2,070,000 96 1,400 134,400 9 1,700 15,300 6 1,900 11,400 2 2,300 4,600 2 3,200 6,400 865 1,400 1,211,000 289 800 231,200 115 210 24,150 26.0 2,000 52,000 MATERIAL UNIT SUBTOTAL 15,600 1,497,600 16,800 151,200 19,200 115,200 22,800 45,600 26,400 52,800 5,000 575,000 1,400 134,400 1,400 12,600 1,100 6,600 1,100 2,200 3,800 7,600 1,510 1,306,150 250 72,250 110 12,650 400 10,400 TOTAL COST FOR 26 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 23,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 2,217,600 227,700 181,200 68,600 81,800 2,645,000 268,800 27,900 18,000 6,800 14,000 2,517,150 303,450 36,600 62,400 $8,677,000 $333,731 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANCENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANGLE) 3 POLE CUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) AND INSULATORS (TANCENT ) AND INSULATORS (LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) AND INSULATORS (HEAVY ANGLE) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHGW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GCUYED TUBULAR X-FRAME LINK 23 SOUTHEAST ROUTE LABOR QUANTITY = UNIT SUBTOTAL 12 7,500 90,000 1 8,500 8,500 1 11,000 11,000 o 11,500 o ° 14,500 ° 14 7,000 98,000 12 1,400 16,800 1 1,700 1,700 1 1,900 1,900 ° 2,300 ° ° 3,200 oO 100 1,400 140,000 34 600 27,200 14 210 2,940 3.0 2,000 6,000 TOTAL COST FOR 3 MILES COST/MILE MATERIAL UIT SUBTOTAL 15,600 187,200 16,800 16,800 19,200 19,200 22,800 ° 26,400 ° 1,500 21,000 1,400 16,800 1,400 1,400 1,100 1,100 1,100 oO 3,800 0 1,510 151,000 250 8,500 110 1,540 400 1,200 LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 8,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 277,200 25,300 30,200 ° ° 119,000 33,600 3,100 3,000 oO ° 291,000 35,700 4 480 7,200 $830,000 $276,667 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANGLE) 3 POLE CUYED STRUCTURE(DEAD END) H-PILING PRE DRILLED (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT) HARDWARE AND INSULATORS(LIGHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANGLE) HARDWARE AND INSULATORS(HEAVY ANCLE) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE GUYED TUBULAR X~-FRAME LINK 26 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 42 7,500 315,000 2 6,500 17,000 4 11,000 44,000 11,500 ° 14,500 29,000 49 18,000 882,000 42 1,400 58,800 1,700 3,400 1,900 7,600 ° 2,300 ° a 3,200 6,400 366 1,400 512,400 134 800 107,200 45 210 9,450 11.0 2,000 22,000 MATERIAL UNIT SUBTOTAL 15,600 655,200 16,800 33,600 19,200 76,800 22,800 ° 26,400 52,800 5,000 245,000 1,400 58,800 1,400 2,800 1,100 4,400 1,100 ° 3,800 7,600 1,510 552,660 250 33,500 110 4,950 400 4,400 TOTAL COST FOR 11 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 23,000 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 970,200 50,600 120,800 o 81,8600 1,127,000 117,600 6,200 12,000 ° 14,000 1,065,060 140,700 14,400 26,400 $3,747,000 $340,636 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LICHT ANGLE) 3 POLE GUYED STRUCTURE(MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) ROCK ANCHORS, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS (LICHT ANGLE) HARDWARE AND INSULATORS (MEDIUM ANCLE) HARDWARE AND INSULATORS (HEAVY ANCLE ) HARDWARE AND INSULATORS(DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) CROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE QUYED TUBULAR X-FRAME LINK 25 SOUTHEAST ROUTE LABOR QUANTITY == UNIT SUBTOTAL 30 7,500 225,000 o 8,500 o 1 11,000 11,000 ° 11,500 ° ° 14,500 o 31 7,000 217,000 30 1,400 42,000 Oo 1,700 oO 1 1,900 1,900 Oo 2,300 oO o 3,200 Oo 232 1,400 324,800 78 800 62,400 31 210 6,510 7.0 2,000 14,000 TOTAL COST FOR 7 MILES COST/MILE MATERIAL UNIT SUBTOTAL 15,600 468,000 16,800 oO 19,200 19,200 22,800 ° 26,400 ° 1,500 46,500 1,400 42,000 1,400 0 1,100 1,100 1,100 Oo 3,800 oO 1,510 350,320 250 19,500 110 3,410 400 2,800 LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 8,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 693,000 o 30,200 ° ° 263,500 84,000 ° 3,000 ° ° 675,120 61,900 9,920 16,800 $1,857,000 $265,286 COST ESTIMATE ALASKA POWER AUTHORITY APA NORTHEAST INTERTIE CARNEY TO NORTH POLE 138 KV WOOD TRANSMISSION LINE SINCLE POLE WITH FUTURE/UB LABOR MATERIAL LABOR AND MATERIAL UNIT DESCRIPTION QUANTITY UNIT SUBTOTAL UNIT SUBTOTAL UNIT SUBTOTAL WOOD POLE (TANGENT W/OHCW,80°- H1) 366 2,500 915,000 2,000 732,000 4,500 1,647,000 WOOD POLE (DEADEND/HEAVY ANGLE W/ OHCW 65°- H2) 22 3,000 66,000 2,300 50,600 5,300 116,600 HARDWARE AND INSULATORS (TANCENT ) 366 1,000 366,000 3,300 1,207,800 4,300 1,573,600 HARDWARE AND INSULATORS (DEADEND/HEAVY ANCLE) 22 3,000 66,000 4,000 68,000 7,000 154,000 CONDUCTOR ASSEMBLY(DRAKE 795 AAC) 366 2,000 732,000 1,540 563,640 3,540 1,295,640 OHCW ASSEMBBLY(3/8 E.H.S.STEEL) 122 800 97,600 250 30,500 1,050 128,100 GROUNDING ASSEMBLY 388 210 61,460 110 42,680 320 124,160 RIGHT OF WAY CLEARING 22 6,000 132,000 ° o 6,000 132,000 SUBTOTAL TOTAL COST 22 MILES $5,171,000 COST PER MILE 235,045 UNIT DESCRIPTION X-BRACED TUBULAR STRUCTURE (TANGENT ) X-BRACED TUBULAR STRUCTURE(LIGHT ANGLE) 3 POLE GUYED STRUCTURE (MEDIUM ANCLE) 3 POLE GUYED STRUCTURE(HEAVY ANCLE) 3 POLE GUYED STRUCTURE(DEAD END) H-PILING, (PER STRUCTURE) HARDWARE AND INSULATORS (TANGENT ) HARDWARE AND INSULATORS(LIGHT ANCLE) HARDWARE AND INSULATORS (MEDIUM ANCLE ) HARDWARE AND INSULATORS (HEAVY ANGLE ) HARDWARE AND INSULATORS (DEAD END) CONDUCTOR ASSEMBLY(RAIL 954 ACSR) OHCW ASSEMBBLY(3/8 E.H.S.STEEL) ROUNDING ASSEMBLY R-O-W CLEARING COST ESTIMATE 230KV TRANSMISSION LINE APA NORTHEAST INTERTIE CUYED TUBULAR X~-FRAME LINK 27 SOUTHEAST ROUTE LABOR QUANTITY UNIT SUBTOTAL 61 7,500 457,500 2 8,500 17,000 1 11,000 11,000 2 11,500 23,000 2 14,500 29,000 68 8,000 544,000 61 1,400 65,400 2 1,700 3,400 1 1,900 1,900 2 2,300 4,600 2 3,200 6,400 508 1,400 711,200 170 800 136,000 68 210 14,280 15.3 2,000 30,500 MATERIAL UNIT SUBTOTAL 15,600 951,600 16,800 33,600 19,200 19,200 22,800 45,600 26,400 52,800 2,500 170,000 1,400 85,400 1,400 2,800 1,100 1,100 1,100 2,200 3,800 7,600 1,510 767,080 250 42,500 110 7,480 400 6,100 TOTAL COST FOR 15.25 MILES COST/MILE LABOR AND MATERIAL UNIT 23,100 25,300 30,200 34,300 40,900 10,500 2,800 3,100 3,000 3,400 7,000 2,910 1,050 320 2,400 SUBTOTAL 1,409,100 50,600 30,200 68,600 81,800 714,000 170,800 6,200 3,000 6,800 14,000 1,478,280 178,500 21,760 36,600 $4,270,000 $280,000 XIV. TABLES POWER Engineers, Incorporated TABLE 1 LOAD SUMMARY BY UTILITY CURRENT YEAR 10 PROJECTIONS YEAR 20 PROJECTIONS UTILITY WINTERPEAK SUMMER VALLEY WINTER PEAK SUMMER VALLEY WINTER PEAK SUMMER VALLEY DESIGNATION MW MVAR MW MVAR MW MVAR MW MVAR MW MVAR MW MVAR CEA MLP MEA LAWING HEA GVEA MUS TOTAL WO/CVEA 8 CVEA TOTAL W/CVEA 4 UG 1361 (08/09/89) XIV-1 9LUG 1361 (08/09/89) Table 2 Generation Schedule Cases HW88 100MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake AMLP Station 1 and 2 Eklutna Bradley Lake 4MW Solomon Gulch Healy North Pole Co-Gen (Fairbanks) XIV-2 SLUG 1361 (08/09/89) Table 3 Generation Schedule Cases HW88 72MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake AMLP Station 1 and 2 193MW Eklutna 30MW Bradley Lake --- Solomon Gulch 4Mw 18MW Healy 22MW North Pole 33MW Co-Gen (Fairbanks) XIV-3 Table 4 Generation Schedule Cases LS88 17MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake Eklutna Bradley Lake Solomon Gulch Healy North Pole Co-Gen (Fairbanks) QLUG 1361 (08/09/89) XIV-4 Table 5 Generation Schedule Cases HW08 98MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake AMLLP Station 1 and 2 Eklutna Bradley Lake Solomon Gulch Healy North Pole Co-Gen (Fairbanks) 9LUG 1361 (08/09/89) XIV-5 SLUG 1361 (08/09/89) Table 6 Generation Schedule Cases HW08 70MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake AMLP Station 1 and 2 Eklutna Bradley Lake Solomon Gulch Healy North Pole Co-Gen (Fairbanks) XIV-6 9LUG 1361 (08/09/89) Table 7 Generation Schedule Cases HW08 150MW Transfer to Fairbanks GENERATION OUTPUT Beluga Bernice Lake Cooper Lake AMLP Station 1 and 2 279MW Eklutna 30MW Bradley Lake 116MW Solomon Gulch 4MW 20MW Healy 25MW North Pole 30MW Co-Gen (Fairbanks) 15MW XIV-7 9LUG 1361 (08/09/89) Table 8 Generation Schedule Cases LSO8 17MW Transfer to Fairbanks GENERATION OUTPUT Beluga 224MW Bernice Lake 27MW Cooper Lake AMLP Station 1 and 2 27MW Eklutna Bradley Lake Solomon Gulch Healy North Pole Co-Gen (Fairbanks) XIV-8 9LUG 1361 (08/09/89) GENERATION AREA MW ~~ MVAR CHUGACH 295 16 AMLP 181 68 MEA 30 4 SEWARD 0 0 HEA 40 7 GVEA 86 16 FMUS 21 _8 TOTAL: 653 120 Table 9 Original U of A Database Peak Load 40 MW North LOAD LOSSES MW ~~ MVAR MW 172 61 6.679 146 48 0.712 88 18 1.447 6 1 0.011 86 25 2.324 110 43 4.244 30 _9 0.013 637 205 15.431 XIV-9 INTERCHANGE MW MVAR 116 18 34 1 -58 -11 -5 0 -47 -17 -27 8 8 5 0 0 Table 10 Original U of A Database With The N.E. Intertie GENERATION LOAD LOSSES INTERCHANGE AREA MW MVAR MW ~~ MVAR Mw Mw MVAR CHUGACH 300 1 172 61 6.908 121 2 AMLP 181 65 146 48 0.713 34 3 MEA 30 4 88 18 2.323 -59 1 SEWARD —0 0 6 1 0.011 5 0 HEA 40 7 86 25 2.321 -47 “17 GVEA 86 “1 110 43 1.968 -24 10 FMUS 21 7 30 9 0.013 8 4 CVEA ra: -25 10 2 0.142 mes) ws; TOTAL: 662 56 648 207 14.400 0 0 9LUG 1361 (08/09/89) XIV-10 Table 11 APA - NE. Intertie - Case 2 HW88 GENERATION LOAD LOSSES INTERCHANGE AREA MW MVAR Mw MVAR MW Mw MVAR CHUGACH 370 13 172 61 8.620 190 5 AMLP 229 69 146 48 0.708 82 -4 MEA 30 9 88 18 4.982 -62 “11 SEWARD 0 0 6 1 0.011 5 0 HEA 0 0 86 25 2.923 -87 7 GVEA 22 13 110 43 7.141 -94 5 FMUS 18 16 30 9 0.023 -11 13 CVEA _4 _t =n _2 0.711 427. 24 TOTAL: 673 120 648 207 25.120 0 0 9LUG 1361 (08/09/89) XIV-1 1 Table 12 APA -N.E. Intertie - Case 10 HW88 GENERATION LOAD LOSSES INTERCHANGE AREA MW MVAR MW MVAR MW MW MVAR CHUGACH 367 6 172 61 8.202 187 -7 AMLP 193 64 146 48 0.733 46 -6 MEA 30 7 88 18 2.805 -60 0 SEWARD 0 0 6 1 0.011 -5 0 HEA 0 0 86 25 2.922 -87 -7 GVEA 55 6 110 43 3.936 -58 6 FMUS 18 11 30 9 0.018 -11 7 CVEA 4 1B 4 2 0.368 aa TOTAL: 667 75 648 207 18.994 0 0 QLUG 1361 (08/09/89) XIV-12 Table 13 APA -N.E. Intertie - Case 2 LS88 GENERATION LOAD LOSSES INTERCHANGE AREA MW ~ MVAR Mw MVAR MW Mw MVAR CHUGACH 211 -67 53 19 5.037 153 10 AMLP 0 0 58 19 0.213 -58 -16 MEA 0 0 23 6 0.282 -22 20 SEWARD —O 0 4 1 0.004 3 1 HEA 0 4 50 14 0.692 -50 8 GVEA 20 -21 30 12 1.895 “11 7 FMUS 0 0 8 2 0.004 ef -2 CVEA 12 -23 i) 2 0.184 mea _-8 TOTAL: 243 “117 235 75 8.312 0 0 9LUG 1361 (08/09/89) XIV-1 3 Table 14 APA -N.E. Intertie - Case 1 HW08 GENERATION LOAD LOSSES INTERCHANGE AREA MW ~~ MVAR MW MVAR MW MW MVAR CHUGACH 374 88 235 83 21.649 118 “11 AMLP 261 100 186 61 0.786 74 12 MEA 30 13 109 22 6.516 -85 “19 SEWARD 0 0 9 2 0.026 8 0 HEA 116 14 86 25 8.326 21 17 GVEA 100 58 , 170 67 9.500 -78 =2 FMUS 20 23 44 13 0.056 -23 14 CVEA ara 03) 20 _4 0.919 16 _29 TOTAL: 905 299 858 277 47.778 0 0 9LUG 1361 (08/09/89) XIV-14 Table 15 APA -N.E. Intertie - Case 2 HW08 GENERATION LOAD LOSSES INTERCHANGE AREA MW ~~ MVAR Mw MVAR Mw MW MVAR CHUGACH 311 40 235 83 11.504 65 -14 AMLP 261 92 186 61 0.785 74 5 MEA 30 9 109 22 3.408 -81 -4 SEWARD 0 0 9 2 0.027 8 0 HEA 116 14 86 25 7.416 22 “14 GVEA 145 13 170 67 5.590 -29 5 FMUS 20 15 44 13 0.046 -23 6 CVEA _4 _0 20 _4 0.511 15 19 TOTAL: 887 182 858 277 29.285 0 0 ILUG 1361 (08/09/89) XIV-15 9LUG 1361 (08/09.89) AREA CHUGACH AMLP MEA SEWARD HEA GVEA FMUS CVEA TOTAL: GENERATION MW MVAR 394 98 279 104 30 15 0 0 116 14 70 79 20 24 4 2 913 354 Table 16 APA - N.E. Intertie - Case 13 HW08 MW 235 186 109 86 170 44 858 LOAD MVAR 83 61 22 25 67 13 |. 277 XIV-16 LOSSES MW 21.636 0.621 9.625 0.026 7.974 13.749 0.058 INTERCHANGE Mw MVAR 138 “11 93 17 -88 -36 -8 0 22 -16 “112 5 -23 15 a16 42 0 0 Table 17 APA -N.E. Intertie - Case 2 LS08 GENERATION LOAD LOSSES INTERCHANGE AREA MW MVAR Mw MVAR Mw Mw MVAR CHUGACH 251 -58 73 26 6.443 172 -4 AMLP 27 3 74 24 0.319 -47 -21 MEA 0 0 28 6 0.999 -28 16 SEWARD 0 0 6 1 0.010 5 0 HEA 0 0 51 15 0.519 -50 2 GVEA 40 6 46 18 2.173 7 "1 FMUS 0 0 12 4 0.009 “11 3 CVEA m2. -23 _30 _6 0.331 17 LA TOTAL: 330 -85 319 99 10.803 0 0 9LUG 1361 (08/09/89) XIV-17 Sutton to Glennallen Waterfowl Nesting Trumpeter Swan Nesting Glennallen to Isabel Pass Waterfowl Nesting Eagle Nesting Trumpeter Swan Nesting Caribou Migration Dall Sheep Lambing (Alaska Range) lsabel Pass to Delta Junction Waterfowl Nesting Sutton to Glennallen Granite Greek Crossing Kings River Crossing Chickaloon River Crossing Mendeltna River Crossing Tolsona River Crossing Moose Creek (both routes) Glennallen to Isabel Pass Gulkana River (both routes) Haggard Creek (both routes) Gillespie Creek (NE route) Fish Creek (SE route) Gunn Creek (SE route) Upper Gulkana River (NW route) © - Open for construction o/ - Open for construction first half of month /o - Open for construction second half of month ABD arena) TABLE 18 CONSTRUCTION WINDOWS Recommended Construction Windows - Both Routes J F M A M ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° lo ° o/ /o ° oO ° ° ° ° ° ° ooo0o0o°0 oooo0o°o VIN. eooooo0o$°o ooo0o°o ooo0o0o°o oooo°o eooo0o0°o oooo0o°o o/ o/ J oooo0o°o ooo oooo°o ooo ooo0o0o°o ooooo ooo eooo0o0o°o eooo°o TABLE 19 KNOWN CULTURAL RESOURCE SITES ALONG PROPOSED INTERTIE CORRIDOR SOURCE SITENO. NAME DIRECTLY CROSSED BY NW OR SE ROUTE Anchorage Quadrangle AHRS* ANC-019 Matanuska Glacier Wayside ANC-252 Bug Lake ANC-255- Gulkana Quadrangle AHRS* GUL-030 = Xei Tcai bene’ GUL-128 Gulkana River Site XXX-005 Meier Roadhouse Trail Mt. Hayes Quadrangle AHRS XMH-219 Timberline Roadhouse XMH-229 - XMH-273 - DIRECTLY CROSSED BY SUGGESTED ROUTE Gulkana Quadrangle AHRS* GUL-008 Dry Creek Wayside GUL-054 Dry Creek Roadhouse XXX-001 Sourdough Trail Extension XXX-002 WAMCATS XXX-003 Gulkana-Fish Lake Summer Trail XXX-004 Sourdough Trail XXX-007 = Paxson-Chistochina Trail XXX-008 = Erueka Creek Trail 9LUG 1361 (08/09/89) XIV-19 DESCRIPTION Prehistoric Site Prehistoric Site File Not Located Reported Ahtna settlement Prehistoric Site Historic summer and winter mining trail Historic Site Prehistoric Site Prehistoric Site Historic site Historic Site Ahtna subsistence and _ historic mining trail Military telegraph and transportation route Historic Mining Trail Historic Winter Mining Trail Historic Mining Trail Historic Summer Mining Trail SOURCE SITENO. NAME DESCRIPTION Mt. Hayes Quadrangle AHRS XMH-014 XMH-221 XMH-222 XMH-224 XMH-227 XMH-287 XMH-288 XMH-317 XMH-389 XMH-392 Big Delta Quadrangle AHRS XBD-091 IN POTENTIAL ACCESS ROAD ZONE FOR NW OR SE ROUTE Gunnysack Creek Miller Roadhouse Black Rapids Lodge Fish Creek Yost Trail Jarvis Hearth Anchorage Quadrangle AHRS* ANC-016 ANC-017 ANC-041 ANC-256 ANC-257 ANC-266 ANC-486 Gulkana Quadrangle AHRS* GUL-056 GUL-063 GUL-064 GUL-071 GUL-077 GUL-096 GUL-131 9LUG 1361 (08/09/89) Eska Station Long Lake Wayside Weiner Lake Sutton Coal Washing Plant Long Lake Sourdough Roadhouse Woods Creek Mendeltna River Crossing Hogan Telegraph Station Ringling Site Ewan Cabin and Cemetery Cuuyi ak’re XIV-20 Prehistoric Site Prehistoric Site Historic Site Historic Site Prehistoric Site Prehistoric Site Prehistoric Site Prehistoric Site Historic Mining Trail File Not Located Prehistoric Site Associated with Matanuska RR Prehistoric Site Prehistoric Site Historic Structure and Settlement Collapsed Log Structure Prehistoric Site File Not Located Historic Site Prehistoric Site Prehistoric Site Associated with WAMCATS Prehistoric Village Site Ethnohistoric Site Ethnohistoric Site SOURCE SITE NO. NAME Mt. Hayes Quadrangle AHRS XMH-019 XMH-230 XMH-334 IN POTENTIAL ACCESS ROAD ZONE FOR SUGGESTED ROUTE Miller Roadhouse Anchorage Quadrangle AHRS* ANC-005 ANC-009 ANC-020 ANC-094 ANC-259 ANC-260 ANC-261 ANC-262 Gulkana Quadrangle AHRS* GUL-045 BUL-054 GUL-062 GUL-069 GUL-070 GUL-072 GUL-078 GUL-080 GUL092 9LUG 1361 (08/09/89) Bridge No. 36 Chickaloon King Mountain Wayside Castle Station T.L. Cotter Grave Chickaloon Gravesite No. 2 Chickaloon Gravesite No. 1 Meier's Roadhouse Dry Creek Roadhouse St. Nicholas Chapel Poplar Grove Roadhouse Our Home Roadhouse Paxson Radio Site Hogan Hiss No. 1 Gulkana River No. 1 Haggard Creek XIV-21 DESCRIPTION Prehistoric Site Historic Site File Not Located Historic Structure Historic Community Collapsed Cabins Associated With Matanuska RR Marked With Log Cross Cemetery Associated With Historic Settlement Cemetery Associated With Historic Settlement Collapsed Cabin Historic Site Historic Site Historic Site Historic Site Historic Site Prehistoric Site Possible Early Prehistoric Site Prehistoric Site Historic Creek SOURCE SITE NO. NAME DESCRIPTION GUL-093 RCA Station Site Prehistoric Site GUL-094 Gulkana Weir Prehistoric Site Mt. Hayes Quadrangle AHRS XMH-021_ - Prehistoric Site XMH-022-—- Prehistoric Site XMH-218 Paxson Roadhouse Historic Structure and Settlement XMH-223 Rapids Roadhouse Historic Site XMH-229_ - Prehistoric Site XMH-252 = Yardang Flint Station Prehistoric Site XMH-253_- Prehistoric Site XMH-335- File Not Located XMH-336~ - File Not Located XMH-337- File Not Located XMH-338- File Not Located XMH-339_ - File Not Located 9LUG 1361 (08/09/89) XIV-22 TABLE 20 NORTHEAST INTERTIE LAND OWNERSHIP PREFERRED ROUTE ALTERNATIVE TOWN RANGE LM | SECTIONS LAND OWNERSHIP Pen [oe Ss [eC MatSuBorough 20N O5E 29, 20, 21, 22, 23, 24 20N_[_5€ | 5 [23Gwie) Ww Oo P20n[_06e_| 20N O7E 30 ,19, 20, 21, 22, 23, State Selected-Tentatively Approved zon |_08e_[ 5 _[27(NW v4 of NE VA) 20N 10E 30, 19, 17, 16, 9, 10 N n ON ON 21N 21N 21N 30(5 12 of WW 14) 30, 29, 28, 27, 26, 25, Regional Corporation Selection Ahtna Corporation 19, 18, 17, 16, 9, 10, 11, | Regional Corporation Selection 2,1 Ahtna Corporation N = OE Ss Ss 10E 11E N Ww N 21N 12E S G 1361 (08/09/89) XIV-23 TOWN | RANGE | M SECTIONS LAND OWNERSHIP 36 11W C 424, 13 State Selection - Tentatively Approved 02N 10W 18, 7,8,5,4 State Selection - Tentatively Approved 03N Cc C | 33, 34, 35, 36 State Selection - Tentatively Approved ols] oa 03N Homestead Patent 03N 03N 35 (SW 1/4 of SE 1/4) 36 (Sw 1/4 of SW 1/4) 31, 32,,33,,34,35, 36 Native Allotment Application 3 = State Selection - Tentatively Approved 32,33 Native Allotment 31, 30, 20, 16, 10, 11, w = °o © Oo 2 & =|= State Selection - Tentatively Approved 03N S 7,8;9;,3 State Selection - Tentatively Approved 35, 36 State of Alaska 30, 29, 28, 27,26,25, |State Selection - Tentatively Approved = N 8 19, 20, 21, 15, 11, 12 State Selection - Tentatively Approved C | 18; 17,20, 21,22, 23, State Selection - Tentatively Approved a = 04N g g 18, 17, 16, 15, 14, 13, 19, 17, 16, 15, 14, 13 19, 18;7,6 Ahtna Regional Corporation Ahtna Regional Corporation State of Alaska and State Selections rr Ahtna Regional Corporation State of Alaska Ahtna Regional Corporation oO N O5N 31, 30, 19 18,7,6 311,30; 19; 18; 7,6 31, 30,7 19, 18, 6 O1E Cc O7N O1E 0O7N O1E Ahtna Regional Corporation NY Oo 2 N : | w N Ahtna Regional Corporation G Regional Corporation Selection/State Selection O1E 31, 30, 19, 18, 7,6 Ahtna Regional Corporation LUG 1361 (08/09/89) XIV-24 | Town | RANGE | | SECTIONS LAND OWNERSHIP es a 36, 25, 24 US Bureau of Land Management 02W C | 24, 1336(N 1/4) State Selection - Tentatively Approved | O9N | O1E | C | 19,18, 7,5 US Bureau of Land Management 7 (NW 1/4) Native Allotment Application 32,33;,28,30, 17,8 U.S. Bureau of Land Management 33,34,27,22, 15, 10, 9,4] US Bureau of Land Management 33,34,,27, 22, 15,165, 98,5 33528721), 16;,9,/4 10N 11N 12N O1W 01 EE = C US Bureau of Land Management 13N 4 2S 21S US Bureau of Land Management 2 US Bureau of Land Management nN F F 34,27, 22, 15, 10, 3 33,28; 29;.20, 17,,8,:5 US Bureau of Land Management 12E State Selection - Tentatively a|o}o = S mi Sis Ww Approved 20S 12E F |32,29,20,17,18,7,6 |State Selection - Tentatively Approved 20S O5W11E 1,2; 354 State Selection - Tentatively Approved 29S 11E 33, 28, 29, 20,17,8,5 |State Selection - Tentatively Approved 18S F 2,29, 30, 19, 18,7,6 |US Bureau of Land Management w 17S 11E F | 36,25, 24, 23, 14, 10, 3, |State Selection 4 17S 11E F |23,14 Homestead Patent State Selection Military Withdrawal Homestead Patent 16S 16S 16S 51S 14S 10E 14S 10E a 33,,32,,29, 20) 17,'8,5 C F } 20, (1/2), 27 (SE 1/4) 10E 32,29, 20, 17,8, 9,4 33, 28, 21, 16 1571053 US Bureau of Land Management US Bureau of Land Management State Selection - Tentatively Approved 34, 27, 26, 23, 14, (S State Selection - Tentatively 1/4) Approved = N 13S mn 3 1361 (08/09/89) XIV-25 TOWN RANGE | M | SECTIONS LAND OWNERSHIP [35] toe | F fsas4 [Us Bureau of tand Management P05 | 10 [0s] 10 | UG 1361 (08/09/89) XIV-26 XV. EXHIBITS POWER Engineers, Incorporated EXHIBIT | EXHIBIT I Trumpeter Swan Survey Data SCALE 11250000 ————— SYMBOL KEY: SINGLE ADULT BREEDING PAIR BROOD NEST OR EGGS FLOCK (9 OR LESS) FLOCK (10 OR MORE) BUFFER ZONE AROUND BROODS: RADIUS = 1-00 MILES Bix od DATE PLOTTED: 12/18/85 EXHIBIT II EXHIBIT II CULTURAL RESOURCES REFERENCES AHRS (Alaska Heritage Resources Survey) 1988 Alaska Heritage Resources Survey Site Listing. Alaska Department of Natural Resources, Office of History and Archaeology, Anchorage. Ahtna, Inc. 1988 Preliminary Distribution Maps and Index of Ethnohistoric Cultural Resources in the ARS OTH’B Gulkana Study Area, Alaska. Submitted to Hart Crowser, Inc., Anchorage. Bacon, G. 1978 The Denali Complex as seen from Long Lake, Southcentral Alaska. Paper presented at the Fifth Annual Meeting of the Alaska Anthropological Association, Anchorage. 1975 Preliminary Testing at the Long Lake Archeological Site. Paper presented at the Second Annual Meeting of the Alaska Anthropological Association. 1980 Archaeological Survey and Inventory of Cultural Resources at Fort Greely, Alaska, 1979. Final report prepared by Alaskarctic for Alaska District, U.S. Army Corps of Engineers, Contract DACA85-78-C-0045, Anchorage. Clark, G. 1974 Archaeological Survey and Excavations Along the Southernmost Portion of the Trans-Alaska Pipeline System, 1974. Final report to Alyeska Pipeline Company. Ms. on file, University of Alaska Museum Fairbanks. Cohen, K.K. 1980 A History of the Gulkana River. Edited by G.C. Stein, Alaska Department of Natural Resources, Division of Research and Development, Anchorage. Cook, J.P. (editor) 1977 Pipeline Archeology. Institute of Arctic Biology, University of Alaska, Fairbanks. 9LUG 1361 (0809 89) 1 Cook, J.P., R.R. Newell, and W.E. Wiersum 1977 Fish Creek Site (XMH-219). In Archeological Investigations Pek the Trans-Alaska Pipeline, Book lr Edited by J.P. Cook, pp. 70-180. Institute of Arctic Bisloay, University of Alaska, Fairbanks. Cox, R., C. Hulquist, B. Loudat, and J.Maniery 1978 Archaeological Excavations at 49-GUL-79 on Paxon Lake, Alaska. Edited by J. Beck, Bureau of Land Management, Anchorage District Office. De Laguna, F. 1970 Sites in Ahtna Territory, Copper River Basin. Manuscript prepared for Alyeska Pipeline Service Company and Alaska Methodist University. Dessauer, R.F., and D.W. Harvey 1980 An Historical Resource Study of the Valdez Creek Mining District, Alaska - 1977. Scant District Office, Bureau of Land Management, Anchorage. Dixon, R.G. and W.F. Johnson 1973 Survey of Prehistoric and Historic values of 48 Waysides of the Alaska Park System. Alaska Office of History and Archaeology, Anchorage. Gibson, D., and C. Mishler 1984 Cultural Resources Survey: Northwestern Portion of the Ringling Site (49 GUL 077), Gulkana, Alaska. Unpublished report, Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys, Anchorage. Gibson, D.E. and S.F. Sterling 1981 Cultural Resources Survey along the Glenn Highway, Mileposts 60-85, 92-106, and 108-118. In Archagological Survey Projects, 1979, edited by D. Gibson, pp 74-98. History and Archaeology eae 28. Alaska Office of History and Archaeology, Anchorage. Hanson, S.E. 1982 Historic and Contemporary Uses of the Gakona River. Ms. on file, Alaska Department of Natural Resources, Division of Research and Development, Policy Research and Land Entitlement, Anchorage. 1979 Report of Archaeological Reconnaissance: Withdrawal Areas, Fort Greely, Alaska. Preliminary report to U.S. Army Cons of Engineers, Contract DACA85-79-M-0001, Anchorage. Holmes, C.E. and W. Workman 1974 McKay, J.E. 1981 Cultural Resources Investigations of the Denali Highway Project. In, Archaeological Survey Projects, 1979, edited by D. Gibson, pp 210-236. Alaska Office of History and Archaeology, Miscellaneous Publications, History and Archaeology Series 28, Anchorage. Phillips, W.T., Sr. n.d. Roadhouses of the Richardson Highway: First Quarter Century 1898 to 1923. Alaska Historical Commission, Anchorage. Quirk, W.A. 1974 Historical Aspects of the Building of the Washington, D.C.-Alaska Military Cable and Telegraph System, With Special Emphasis on the Eagle-Valdez and Goodpaster Telegraph Lines 1902'1903. U.S. Department of the ear Bureau of Land Management, Fairbanks District Office. Rainey, F.G. 1939 Archaeology in Central Alaska. Anthropological Papers of the American Museum of Natural History 36(4):351” 405. Reger, R.D., T.L. Pewe, F.H. West, and |. Skarland 1964 Geology and Archaeology of the Yardang Flint Station. Anthropological Papers of the University of Alaska 12(2):92-100. Stern, R.O. (editor) 1982 Cultural Resource Surveys, 1981. Office of History and Archaeology, Miscellaneous Publications, History and Archaeology Series 31, Anchorage. Workman, W. 1976 Archaeological Investigations at GUL-077, A Prehistoric Site Near Gulkana, Alaska. Unpublished report, Alaska Methodist University, Anchorage. West, F.H. 1967 The Donnelly Ridge Site and the Definition of an Early Core and Blade Complex in Central Alaska. American Antiquity 32(3):360-382. Yarborough, L. 1976 Archeology in the Delta Land Management Planning Study Area. Final Report for the Alaska State Division of Parks and the U.S. Government, Contract No. CC10-0825. 9LUG 1361 (0809.89) 3 EXHIBIT Ill EXHIBIT Ill REFERENCES Alaska Dept. of Fish and Game, Habitat Div. 1983. State of Alaska game refuges, critical habitat areas and game sanctuaries. 24 pp. 1985a. Alaska habitat management guide. Reference maps. Southcentral region volume |: Distribution and human use of mammals. Juneau, AK. 1 vol. 1985b. Alaska habitat management guide. Reference maps. Southcentral region volume II: Distribution and human use of birds and fish. Juneau, AK. 1 vol. 1985c. Alaska habitat management guide. Southcentral region. Map atlas. Juneau, AK. 1 vol. 1986a. Alaska habitat management guide. Western and interior regions. Vol. 1. Distribution of mammals. Juneau, AK. 1 vol. 1986b. Alaska habitat management guide. Western and interior regions. Vol. Il. Distribution of birds and human use of mammals. Juneau, AK. 1 vol. 1986c. Alaska habitat management guide. Western and interior regions. Vol. Ill. Distribution of freshwater fish, marine fish, and shellfish. Juneau, AK. 1 vol. 1986d. Alaska habitat management guide. Western and interior regions. Vol. Ill. Distribution of anadromous fish and human use of fish. Juneau, AK. 1 vol. Alaska Dept. of Natural Resources. 1985. Tanana basin area plan for state lands. Fairbanks, AK. 1 vol. Alaska Dept. of Natural Resources and Alaska Dept. of Fish and Game. 1986. Copper River basin area plan. 1 vol. Alaska Dept. of Natural Resources, Alaska Dept. of Fish and Game, and Matanuska Susitna Borough. 1985. Susitna area plan. Anchorage, AK. 1 vol. Alaska Dept. of Natural Resources, Div. of Parks, Park Planning Section. 1982a. Alaska state park system: Southcentral region plan. 153 pp. 1982b. Alaska state park system: Statewide framework. 39 pp. Alaska Land Use Council. 1983. A study to determine the desirability of creating the Denali National Scenic Highway. 1 vol. 3 1361 (08/09 1 Batin, C. 1987. Hunting in Alaska; a comprehensive guide. Alaska Hunter, Fairbanks, AK 415 pp. Cooper, B.A., et al. 1988. OTH-B avian survey field program; spring 1988; final report. Alaska Biological Research, Fairbanks, AK. Report for Metcalf and Eddy/Holmes and Narver and SRI International. 279 pp. McMillan, P.O., and S.V. Cuccarese. 1988. Alaska over-the-horizon backscatter radar system: Characteristics of contemporary subsistence use patterns in the Copper River basin and upper Tahana area. Report for Hart Crowser, Inc. Arctic Environmental Information and Data Center, Univ. of Alaska, Anchorage, AK. 2 vols. Boies, B.B., et al. 1979. Environmental impact assessment guidelines for new source fossil fueled steam electric generating stations. U.S. Environmental Protection Agency. Report EPA-130/6-79-001. 114 pp. Hemming, J.E., and K.A. Morehouse, eds. 1976. Wildlife atlas: Trans-Alaska oil pipeline, Valdez to Prudhoe Bay. Alaska Interagency Fish and Wildlife Team and Joint State/Federal Fish and Wildlife Advisory Team. Special Report 3. 30 pp. Stratton, L., and S. Georgette. 1984. Use of fish and game by communities in the Copper River basin, Alaska: A report on a 1983 household survey. Div. of Subsistence, Alaska Dept. of Fish and Game, Anchorage, AK. Technical Paper 107- 212 pp. . 1985. Copper Basin resource use. Map indes and methodology Div. of Subsistence, Alaska Dept. of Fish and Game, Anchorage, AK. Technical Paper 124. 28 pp. U.S. Bureau of Land Management. 1974. Multimodal transportation and utility corridor systems in Alaska. A preliminary, conceptual analysis. 1 vol. 1974. Multimodal transportation and utility corridor systems in Alaska. Generalized description of the 40 primary corridors: locations, modes, identifying agencies, purposed, environmental impacts, and status of lands crossed. A preliminary, conceptual analysis. 184 pp. U.S. Bureau of Land Management, Alaska State Office, Div. of Pipeline. 1973. Proposed trans-Alaska pipeline system. Environmental assessment atlas. U.S. Bureau of Land Management and U.S. Army Corps of Engineers. 1987. Draft environmental impact statement for the proposed trans-Alaska gas system. 1 vol. U.S. Dept. of the Air Force, Air Force Systems Command, Electronic Systems Div. 1986. Draft environmental impact statement. Proposed Alaskan radar system. Over-the-horizon backscatter radar program. 1 vol. 9LUG 1361 (08 09.89) 2. U.S. Dept. of Energy. 1980. 230kV international transmission line. San Diego County, California to Tiajuana, Mexico. Draft environmental impact statement. Report DOE/EIS-0067. 1 vol. U.S. Dept. of Energy, Bonneville Power Administration, Biological Studies Task Team. 1982. Electrical and biological effects of transmission lines: A review. Portland, OR 79 pp. Univ. of Alaska, Active Environmental Information and Data Center. 1974. Alaska regional profiles. Southcentral region. 255 pp. 1976. Alaska regional profiles. Yukon region. 346 pp. AGENCY CONTACTS Alaska Dept. of Environmental Conservation, Anchorage, Bob Flint. Alaska Dept. of Fish and Game, Habitat Div., Anchorage, Gary Liepitz, Don McKay Alaska Dept. of Fish and Game, Subsistence Div., Anchorage, Jim Fall Alaska Dept. of Natural Resources, Div. of Land and Water Mangement, Area Office, Wasilla, Keith Quinteville Alaska Dept. of Natural Resources, Div. of Parks, Anchorage, Nat Goodhue Alaska Dept. of Transportation and Public Facilities, Planning Section, Anchorage, Roger Maggard Alaska Railroad Corporation, Anchorage, Jack Swanson Matanuska-Susitna Borough, Planning Dept., Palmer, Rod Schulling U.S. Bureau of Land Management, State Office, Anchorage, Gene Terlin U.S. Bureau of Land Management, Anchorage District Office, Mike Kasterin U.S. Bureau of Land Management, Glennallen District Office, Larry Kajden, Dave Mushovic U.S. Army Corps of Engineers, Regulatory Branch, Anchorage, Joel Ward U.S. Fish and Wildlife Sercie, Western Alaska Ecological Services, Anchorage, Mike Amaral, Hank Hosking ) 61 (08:09 39) 3 EXHIBIT IV EXHIBIT IV alae i Sric (9) | A f\ (C3, i i \ i| ip () ic | A\ I h\ “ i} STEVE COWPER, GOVERNOR USS Yi inhibin wie: DEPARTMENT OF FISH AND GAME 333 RASPBERRY ROAD ANCHORAGE, ALASKA 99518-1599 PHONE: (907) 344-0541 January 25, 1989 Hart Crowser, Inc. Attn: Mr. James D. Gill Project Manager 2550 Denali Street, Suite 900 Anchorage, Alaska 99503 Dear Mr. Gill: The Alaska Department of Fish and Game (ADF&G) has reviewed your proposed alternative route alignments for the installation of a 230 Kv transmission line from Sutton through Glennallen to Delta Junction. The following comments are provided for your consideration during the study of the feasibility of this project. Fisheries Resources Each of the two alternative routes would require numerous crossings of specified anadromous and resident fish streams. These streams have been identified in the Trans Alaska Pipeline (TAPS) and Trans Alaska Gas (TAGS) environmental impact analyses. The ADF&G recommends you review these documents for fish inventory information. Stream crossings for the construction of an aerial transmission line should pose minimal potential fisheries impacts. Any inwater work er crossings of specified anadromous fish streams will require a permit from the ADF&G pursuant to AS 16.05.8700. Timing constraints to avoid affecting spawning anadromous fish or affecting migrating salmon may also be required depending on the methods of construction to be used. Wildlife Resources 1. Sheep. Dall sheep occur at Sheep Mountain and from about Rainbow Mountain north to Ober Creek. The TAPS Wildlife Atlas (JFWAT) mapped lambing/nursery areas east of the Delta River above approximately the 3,500-ft. contour from Castner Glacier north to Ober Creek and west of the Delta above approximately the 2,500-ft. contour from Black Rapids Glacier north to Mount Pillsbury. Construction activity and aircraft flights should be restricted in the vicinity of Hart Crowser, Inc. -2- January 25, 1989 lambing and nursery areas from May 5 through June 20. This restriction should include: no minor ground activity within 1 mile; no major ground activity within 0.25 mile and no aircraft operations less than 0.5 mile horizontal or 1,000 feet AGL vertical. Any structures or other facilities associated with power line construction or operation should be located at least 1 mile from lambing areas. No habitat alteration should occur within 0.25 mile of lambing areas. Another area where the proposed transmission line alternatives could adversely affect sheep is the proposed northern or western alignment alternative at Sheep Mountain. The valley between Fortress Ridge and Sheep Mountain is used extensively by sheep and caribou during fall and winter. The ADF&G would prefer the transmission line follow the existing highway corridor to avoid unnecessary impacts on sheep fall and winter range. 2s Bears. A known spring concentration area and berry-feeding concentration area for grizzly bears is traversed by the western route alternative from Darling Creek north to Donnelly. A human-carnivore interaction plan is required prior to construction to mitigate potential conflicts. Sis Moose. A known moose winter concentration area is traversed by both route alternatives from Darling Creek north to about TAPS Pump Station #9. 4. Caribou. The range of the Macomb Plateau Caribou Herd is traversed by both route alternatives from Darling Creek north to the communication site road north of Donnelly Dome. Both routes are within the range of the Nelchina Caribou Herd south of Cantwell Glacier and west to about Gunsight Mountain. The Hogan Hill area is a known caribou over wintering area. Spring and fall concentrations occur from south of Sourdough to Paxson Lake and at Eureka near Glennallen. 5. Bison. Bison are distributed along the route alternatives from Darling Creek north to the Delta terminus. Winter range is located at the north end and calving occurs at the south end of this distribution. 6. Waterfowl. Mapped waterfowl concentrations include the Bolio Lake area (north of Donnely Dome), the area between the Dome and upper Ober Creek, and the Summit Lake area. The Delta River is a goose migration area. From 150,000 to 200,000 lesser sandhill cranes migrate along the Tanana River valley (between the Alaska Range and Yukon-Tanana Uplands) in spring and fall, crossing the proposed transmission lines route primarily between Donnelly Dome and Hart Crowser, Inc. -3- January 25, 1989 Delta Junction. Additional intensive migratory bird use occurs in the vicinity of both transmission line alternative routes from Paxson Lake to Glennallen and west to the Little Nelchina River. The potential for bird strikes is great throughout for either route alternative. 7. Raptors. Golden eagle and peregrine falcon nesting has occurred in the Alaska Range east of the proposed routes and east of TAPS Isabel Camp, respectively. Again, bird strikes and electrocution of raptors must be considered and mitigated. General Comments: Summit Lake Area. The ADF&G recommends that the easterly route alternative be identified as the preferred alternative. The undeveloped area west of Summit Lake should be preserved for its scenic value and left unroaded. Sutton to Glennallen. The ADF&G recommends the transmission line follow an alignment close to the Glenn Highway. This will provide ease in maintenance inspection and access and reduce aesthetic impacts and sheep and caribou disturbance. Sincerely, eda 1 Gary S. Liepitz Habitat Biologist Region II Habitat Division Telephone (907) 267-2284 cc: A. Ott, ADF&G K. Roberson, ADF&G B. Tobey, ADF&G Matanuska-Susitna Borouéh P.O. BOX 1608, PALMER, ALASKA 99645-1608 © PHONE 745-9661 PLANNING DEPARTMENT January 9, 1989 Ms. Linda Dwight P05 BOX 4112591 Anchorage, Alaska 99511 Re: Northeast Intertie Dear Ms. Dwight: We have the following staff comments relative to environmen- tal concerns involved with the two routes proposed for the Northeast Intertie: We would request that a substation or substations be includ- ed in the design of the project - sufficient to at least provide power to currently unserved areas along the route. This would apply specifically to the area between Miles 109 and 113.5 of the Glenn Highway, and to the Lake Louise area if a substation would facilitate the extension of electrical service to Lake Louise. By Resolution 88-060, the Borough Assembly has supported funding Copper Valley Electric Association through the Alaska Power Authority to extend electrical service to both of these areas (a copy of that resolution is enclosed). The northern route, or that proposed to be north of the Glenn Highway would appear to be much less obtrusive into the viewshed along the Glenn. The portion of the Glenn Highway between Sutton and Glennallen affords spectacular views - especially to the south into the broad Matanuska valley. Our Public Lands Division finds that no Borough-owned lands would be affected be either of the proposed alignments. There are currently two community councils recognized by the Borough which would be affected by this project. They are the Sutton/Alpine Civic Club and the Chickaloon Community Council. Maps and the names and addresses of contact persons are enclosed. We have forwarded maps of the routes to each for comment, but have received none at this writing. Planning Platting Public Lands Parks & Recreation Code Compliance Cultural Resources 745-9661 745-9650 745-9652 745-9663 745-9845 745-9681 These councils should be kept advised of progress on this project. Numerous trails would be involved with the proposed northern route. These trails are historically significant and are currently very important for access and recreational purpos- es. Most are associated with the historic Chickaloon- Nelchina trail system. The Borough is interested in seeing that easements or rights-of-way for these trails are pre- served through any utility corridor that may be created through the area. We have enclosed maps showing the more significant trails of concern. Our Cultural Resources Division is concerned with the protection of historical and archaeological sites in the Borough. Please find enclosed a copy of their memo on this subject. Please note their concluding concern that a cultural resources survey be completed for the routes. This would appear to be a very worthwhile project. We appreciate the opportunity to comment and would like to continue to be involved in its development. Sincerely, Rice eine Sr. Planner RS/pmg1175 cc: John Duffy, Director of Planning Matanuska:Susitna Boroush BOX 1608, PALMER, ALASKA 99645 e@ PHONE 745-9661 DEVELOPMENT SERVICES DEPARTMENT MEMORANDUM DATE: December 29, 1988 TO: Planning Division - Rodney Schulling FROM: Cultural Resources - Vickie Cole SUBJECT: Northeast Intertie We have reviewed the proposed route alignments for the "Northeast Intertie" and have the following comments: 1. More detail of the proposed routes is needed in order to pinpoint the alignments in spatial relationship to known/recorded cultural resource sites along the routes. 2. The Northern route transects the following sections for which there are recorded sites - T19N R3E Sec. 27 Chickaloon Bunkhouse Anc. 718 Sutton Indian Grave Yard ANCGs 255 Old Sutton Post Office Anc. 016 Sutton Coal Washery Anc. 256 T20N R5E Sec. 25 Chickaloon Grave Site #2 Anc. 260 Chickaloon Grave Site #1 Anc. 261 Chickaloon Village and Grave Site Anc. 562 Chit Z'uu's House Site Anc. 563 T21N R12E Sec. 1 Eureka Roadhouse Anc. 486 3. The Southern route crosses several sections which have recorded sites - T19N R3E Sec. 27 Chickaloon Bunkhouse Anc. 718 Sutton Indian Grave Yard Anc. 255 Old Sutton Post Office Anc. 016 Sutton Coal Washery Anc. 256 Planning Platting Public Lands. Parks & Recreation Code Compliance Cultural Resources 745-9661 745-9650 745-9652 745-9663 745-6845 745-9681 T19N R4E Sec. 17 King Mountain Wayside Anc. 020 T19N RSE Sec. 5 Castle Station Anc. 094 4. The Matanuska-Susitna Borough cultural resources inventory of sites is far from complete. Nearly 700 townships within the Borough have yet to be surveyed for sites. In view of the lack of collected data about sites within the proposed intertie routes, this Division requests that a cultural resources survey be completed for the routes before a final choice is made. This is especially important because the same basic route was used by Natives in pre-contact times and by early explorers, miners and trappers. If there are any furthers questions please feel free to contact us. Thank you for your cooperation in helping us to document Borough history. a g Li CLLE Cole, Chief Division of Cultural Resources MATANUSKA-SUSITNA BOROUGH Resolution 88-((,0 A RESOLUTION OF THE ASSEMBLY OF THE MATANUSKA-SUSITNA BOROUGH SUPPORTING THE REQUEST OF COPPER VALLEY ELECTRIC ASSOCIATION FOR THE FUNDING OF TWO PROJECTS WITHIN THE BOROUGH. WHEREAS, the Copper Valley Electric Association (CVEA) has requested that the Alaska Power Authority seek funds for two vrojects within the Matanuska-Susitna Borough - $250,000 for Phase II of the Sheep Mountain line extension and $1,500,000 for the extension of a power line into the Lake Louise area; and WHEREAS, CVEA has completed Phase I of the Sheep Mountain project and has a balance of funds remaining from that project, which could be applied toward the completion of Phase II; and WHEREAS, completion of the Sheep Mountain line extension would, in effect, complete the electrification of the entire length of the Glenn Highway within the Borough; and WHEREAS, extension of electrical service to the Lake Louise area would provide conventional electric power to a currently unserved area of the Borough, and one that has significant economic development potential based upon its 1 recreational assets; and WHEREAS, the Borough's Planning Commission, through public hearings, including a teleconference in the areas -l- hos Q§ - Clo affected, has determined that there is a need and support for both of these projects; and WHEREAS, while both of these ovrojects are highly dantretln, the completion of the Sheep Mountain Line Extension should have the higher priority if funds for both are not available; NOW THEREFORE BE IT RESOLVED, that the Assembly of the Matanuska-Susitna Borough supports the r2quest of the Copper Valley Electric Association for the funding through the Alaska Power Association of the completion of the Sheep Mountain Line Extension (from Mile 113.5 to Mile 109 of the ‘Glenn Highway) and of the extension of electrical service to the Lake Louise area - both projects serving interests within the Matanuska-Susitna Borough; BE IT FURTHER RESOLVED, that the Assembly recommends the Rail Belt Energy Fund as the source of funding for these projects; and BE IT FURTHER RESOLVED, that the Assembly recommends that if both of these projects cannot be funded during the next legislative session, that the Sheep Mountain Line Extension be given priority for araliatine funds, and that monies for the extension of service to the Lake Louise area be sought the following session. PASSED AND APPROVED by the Assembly of the A 4). Matanuska-Susitna Borough this SE day of lites ? 1983 ey - GW, a. Qe Dorothy A. Jones, Mayor ATTEST: Jt, py f e#! Lt wv le bed an Linda Dahl, Borough Clerk 7 (SEAL) ~3- eso. 93-060 EXHIBIT V SUBSTATION we 21* vA EXHIBIT V NORTH POLE GVEA 138 kV Transmission Line INDEX TO SHEETS DETAILING * ADL PERMIT APPLICATIONS FOR GVEA NORTH POLE - CARNEY 25 T2s aC iN > ‘ ie 3 . 138 kV TRANSMISSION LINE Z| 3 3 T3S LI ' Johnson Road \ ‘ \ , 49 CARNEY \ SUBSTATION a = w Ww Sox EIELSON AG PARCEL 7006 ADL 408478 AND W1/2 SECTION 36, T.2S, R.2E, F.M. 4° =1 mile (easements not to scale) Application for GVEA Permit area = 7.09 acres Eleison Ag 7006 Elelson Ag 7007 30°GVEA SH-"" A EIELSON AG PARCEL 7007: Application for GVEA Permit ADL 408479 area = 3.62 acres scale as dimensioned t- anchor key wow NLoO 1 ajc . Elelson Ag 7011 Eleison Ag 7010 SHEET B EIELSON AG PARCEL 7012 ADL 408484 GVEA Application for ADL Permit .EIELSON AG PARCEL 7010 ADL 408482 area = 3.68 acres scale as dimensioned 30'GVEA easement 50' section line easement Elelsum Ag 7009 4 SHEET C EIELSON AG PARCEL 7009 . Application for GVEA Permit ADL 408401 area = 3.57 acres * 4° =1 mile (easements not to scale) 30'GVEA easement Elelson Ag 7010 Elelson Ag 7008 Elelson Ag 7014 T.3S, R.3E, F.M. SHEET D \ EIELSON AG PARCEL 7008 Application for GVEA Permit ADL 408480 area = 0.14 acres scale as dimensioned Elelson Ag 7009 50° section line easement Elelson Ag 7016 "S.1/4C, sec. 4 T.3S, R.3E, F.M, SHFFT E Application for GVEA Permit EIELSON AG PARCEL 7016 area = 3.57 acres ADL 408488 scale as dimensioned 50° section line easement 30'GVEA easement Eleison Ag 7015 S.1/4C, sec. 9 SHEET F EIELSON AG Il PARCEL 7033 Application for GVEA Permit ADL 411228 area = 1.75 acres scale as dimensioned Elelson Ag II 7032 30'GVEA easement TA 17 | 16 20] 21 T.3S, R.3E, FM, SHEET G 23 MILE SLOUGH PARCEL 7056 ADL 409425 Application tor GVEA Permit 23 MILE SLOUGH TRACT B area = 2.79 acres oe scale as dimensioned —_ Prop, cor, prop. cor. T.3S R.3E 9 SHEET H SALCHA AG PARCEL 7006 . Application for GVEA Permit SALCHA AG PARCEL 7007, ADL 407085 NE1/4 NW1/4 Sec. 8 area = 7.07 acres NE1/4 NE1/4 Sec. 9 ; T.4S, R.4E, F.M. scale as dimensioned Saicha Ag 7008 roeoccccce Salcha Ag 7007 30° platted easement 10 SHEET | ee ean SALCHA AG PARCEL 7008 ADL 407086 NW1/4 Section 10, T.4S, R.4E Application for GVEA Permit SW1/4 Section 3, T.4S,R.4E area = 7.37 acres NW1/4 Section 3, T.4S, R.4E scale as dimensioned 30'x100' GVEA anchor key Saicha Ag 7009 5 ze Qo < £ s « a ix — 30'GVEA easement 1 cnet ee wg eel Ie a sarc a a 30'x100' GVEA / oo anchor key 1j 11 SHEET J ‘STATE LANDS SECTION 11, T.4S,R.4E, F.M. Application for GVEA Permit ° area = 3.57 acres scale as dimensioned 30° GVEA easement Saicha Ag 7008 50’ section line easement 12 SHEET K: SALCHA AG PARCEL 7010 ADL 407088 SW1/4 Section 12, T.4S, R.4E . Application for GVEA Permit $W1/4 Section T.4S, R.5E _—— =3.66 acres f ame 30’ GVEA easement 30'x100° 30’ platted easement GVEA anchor key 610° scale as dimensioned » £3 SHEET L Section 18, 19, T.4S, R.SE Application for GVEA Permit : area = 6.71 acres scale as dimensioned ‘1<——— 30' GVEA easement U.S. Survey No. 4336 GVEA Property 14 SHEET M - R.4E R.5E GVEA TRANSMISSION LINE 14 ‘ JOHNSON CARNEY SUBSTATION PUMP STATION 8 alas) GVEA PERMIT APPLICATION ALYESKA PIPELINE CROSSING Section 12, T.48, R.4E, Section 19, T.4S, R.SE, F.M. 100’ pipeline r.o.w. 50’ section line easement 30'GVEA easement 16 ( “Nes NorPol Carney gorts NorPolCarney S.T.R. Subdv. Lot/Block Owner 16 15,25,2E 21,28, 9E 21,28, 2E 21,28, 2E 27,28, 2£ 22,25,2E 25,28, 2E 25,25, 2E 6,35,3E 36,28, 2E 31,28, 3E BBEBBBBSB S52 Pe eens ww- w BBQ FBBE PRYRRRRRRRR mom = 38,948, 4E 10&15,4S,4E 3410,48,4E 12413, 4S, 4E 28,48, 4€ 26427, 45, 4E 24,48, 4E 26427 , 4S, 4E 35,48, 4€ 16,38, 3E 16&17,38, 3€ 15,35,3€ 22,38, 3E 21,38,3€ 27,38, 3E 27,38,3€ 27,38, 3€ 27,38, 3€ 27,38, 3E 27,38, 3€ 27,38, 3E 27,3, 3€ 27,38,3€ 26,27,3S,3E ~,38,3E 138, 3€ “35,38, 3E 35,38, 3€ 35,35, 3E 35, 35,3 ASLS 84-16 Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Eielson Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Salcha Ag Eielson Ag II Eielson Ag II Eielson Ag Il Eielson Ag II Eielson Ag Il 23 Mile Slough 23 Mile Sough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough 23 Mile Slough Tr .F TL 2100 TL 2101 TL 2102 TL 2700 TL 2212 TL 2500 TL 2501 Tr .B Tr .A,D,C Tr.A Tr.A Tr.B,C,D Block 13 L3,4B12_ Tr.E & BI Li,2 B14,Li L3B14,L2B15 L1,2B12 L1,2,3811 Li ,2B9 Bio L4B11 ,Bé 87 BS B4 B2,L1B3 L2,3,483 Bi PetroStar, lessee to St. Doyon Charles & Virginia Howard Jack Howard Jack Howard Army Bernard Parks State State Carolyn M. Howard Emory W. Bohanan Keith L. Malone Valeda D. Blockcolsky Ralph L. VanReenan Wn.C. & Joyce Whipple Harold D. Worthen Perry D. Sebaugh Larrry M. Petty Thomas L. Simon E. Musgrove & P. Paden Ruth E. Crick David 1. Dicderson State Elaine C. Cederberg Stuart J. Roberts State State State North Pole Wood Products Glenda S. Field Shirley J. Ristow Franklin L. Odonnell Dennis A. Ulvestad Eugene E. Musgrove Thomas W. Maher Brooks R. Smith McGowan, Kathy 2. Forest B. McCahon Sr. Harold E. Stahl Jean L. Petty Roberta L. Barnes Russel E. Crick Dave W. Crick Arden R. Bowne Dwayne H. Hofschulte Dwayne H. Hofschul te Clair D. Markey Frank C. Duncklee Nina S.White Karen C. Bowne William E. Blockcolsky Gary A. Schultz Charles J. Champaine Page 1 Address EsmtReq Grant? Platted Fairbanks PO 55263 PO 55263, NP 99705 PO 55263, NP 99705 3135 Old Rich, Fbks 99 PO 55263, NP 99705 SR 20860, Fbks 99701 8531 E 4th Ave, Anch 9 SR 20860, Foks 99701 SR 80371, Foks 99701 PO 1121, Fbks 99707 SR 2 Box 5850, Chugiak ’ SR 60477, Fbks 99701 SR 20860, Fbks 99701 PO 2705, Fbks 99707 SR 71206, Foks 99701 1508 Fathom Dr. ,Kenai 2730 E SOth Ave, Anch PO 81105 College 99708 1607 Kennedy, Fbks 997 SR 60727-A Fbks 99701 SR 90507 Fbks 99701 PO 622 Valdez 99686 PO 2705 Fbks 99707 PO 648 Fbks 99707 4433 kSan Ernesto #115 SR 60367 Fbks 99701 1580 Pioneer Way Fbks SR 60477 Fbks 99701 PO 81676 College 99708 SR 71206 Fbks 99701 SR 71206 Foks 99701 PO 81210 Fbks 99708 PO 55226 NP 99705 PO 55226 NP 99705 1200 Wildrose Fbks 997 PO 1822 Fbks 99707 PO 55234 NP 99705 PO 81210 Fbks 99708 PO 81481 College 99708 SR 90336 Fbks 99701 Files NorPolCarney Reports NorPol Carney Selections Map # is not blank S.T.R. Map # Owner 16,28, 2E 1 PetroStar 22,25, 2E 2 Army/Wai nur i ght 22,25,2E 3 Army Corps Eng. 25,35,36,25,2E 4 State 1,38, 2E 4 State 3,4,10,45,4E 4 State 11,12,48,4E 4 State 5,48,4E 4 State 7,48,4E 4 State 25,26,38,3E 4 State 31,28, 2E 4 State 18,19,4S,4E 4 State 5&6, 45, 4E 4 State 1,3S,2E 5 36,2S,2E 6 Bohanan/St 31,28, 3E 7 Malone/St 6,38,3€ 8 Howard/St 6, 38,3€ 9 Blockcol sky/St 6,38,3E 10 Windfall Properties 7,38,3E il Whipple/St 5,38,3€ 12 VanReenan/St 8,3S,3E 13 Geverance 8,38,3E 14 Sebaugh/St 4,3S,3E 15 Blockcolksky/St 9,38,3E 16 Musgrove & Paden/St 8,35,3E 17 Petty/St 17,38,3§ 18 Crick/St 16,3S,3E 19 Ulvestad/St 16&17,3S,3E 20 Musgrove/St 21 ,38,3€ 21 15,3S,3€ 22 Maher/St 22,38, 3E 23 Si th/St 27,38,3E 24 McCahon/St 27, 38,3E 24 Stahl/St 27,38, 3€ 24 Petty/St 26,38, 3E 24 White/St 27,38, 3€ 24 State 30,48, 5€ 25 U.S. Air Force 6,45,4E 26 Johnson/FNSB 7,48,4E 28 7,48,4€ 2 6,48, 4E 27 Flodin/FNSB 5,8,9,48,4€ 30 Cederbero/St 10&15,4S,4E 31 Rober ts/St 12,48,5E 32 Alyeska upgrade xst. line upgrade xst line 60’ ,anc 30’ adj.S.L.,anc anc 30’ adj. S.L., 2 anc 30’ adj. S.L. 30’ adj. S.L. 2 anc 30’ adj. S.L. 30’ adj. S.L. 30’ adj. S.L. 30’ adj. S.L. anc 30’ adj. S.L. 30’ adj. S.L.,anc. 30’ adj. S.L. anc anc 30’ adj.S.L. 30’ adj. S.L. 2 anc 30’ adj. S.L. 30’ adj. S.L. 30’ adj. S.L.,anc anc 2 anc 30’ adj. S.L. 30’ adj. S.L./road 30’ adj. S.L./road 30’ adj.S.L./road 30’ adj. road 30’ adj. S.L./road 2 anc 30’ adj. S.L./road 30’ adj. S.L./road 30’ adj. S.L./road 30’ adj. S.L./road 30’ adj.S.L., anc. 30’ adj. S.L., anc. crossing platted platted platted platted platted platted platted platted platted platted platted platted platted