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HomeMy WebLinkAboutAPA2747SUSITNA HYDROELECTRIC PROJECT FEDERAL ENERGY REGULATORY COMMISSION PROJECT No. 7114 o ------, 1984-1985 SUSITNA RIVER ICE STUDY P EP'ARED B Y -~~~~========---===- R S. M CONSULTANTS, INC. t! ;j£WINi£1!h~ ti i!CL.OC318TS PL.ANNeR8 SUAVE VCRS ~HUl ER CONTRACT TO , 1 [l~L~~t£~=~~~@(Q;@ i tHJSI TNA JOINT VENTURE I I • J I I -... _AI SK 0 L~~-~-:• ,._A A P WER FINAL REPORT JUNE 1985 DOCUMENT NO. 274J AUTHORITY=---___, ~- L L L L [ [ L L L L Document No. Susitna File No. 2747 4.2.2.1 T\\ \1..\~ 5fj SUSITNA HYDROELECTRIC PROJECT F"L\1-2._, no ;2=-t~=t- SUSITNA RIVER ICE STUDY 1984-1985 Prepared by R&M Consultants, Inc. Carl Schoch Under Contract To Harza-Ebasco Susitna Joint Venture Prepared for Alaska Power Authority Final Report June 1985 ARLIS Alaska Resources Library & Information Ser\1ces Auachorage,JUaska NOTICE ANY QUESTIONS OR COMMENTS CONCERNING THIS REPORT SHOULD BE DIRECTED TO THE ALASKA POWER AUTHORITY SUSITNA PROJECT OFFICE l_ r - l > r- I L_ i L_ r r M15/31 2 U.l ('I) N 1""--co ('I) 0 0 0 LO LO 1""-- ('I) ('I) I Section 1.0 2.0 3.0 4.0 5.0 6.0 TABLE OF CONTENTS Title Page List of Tables ii List of Figures v INTRODUCTION SUMMARY 2 CHRONOLOGY OF 1984 SUSITNA RIVER FREEZEUP 4 METEOROLOGY AND DATA COLLECTION 13 4.1 Meteorology 4.2 Lower River Cross Sections 4.3 Porosity Measurements of Slush Ice 4.4 Observations at Lower River Fish Habitat Study Areas 4. 5 Ice Bridge Formation Near Cook Inlet CHRONOLOGY OF 1985 BREAKUP REFERENCES APPENDIX A Monthly Meteorological Summaries From Weather Stations at Denali, Watana and Talkeetna. River Ice Observations and Weather Data From Gold Creek. APPENDIX B 1984 Lower River Cross Section Plots APPENDIX C Blueline Photomosaic Maps of Lower River Showing Locations of Cross Sections and Fisheries Habitat Study Areas ARLIS 13 14 15 17 18 65 69 Alaska Resources Library & Information SerVices . Anchorage, Alaska f ' M15/31 3 c-~ t L LIST OF TABLES Number Title Page L 3.1 1984 Leading Edge Progression Summary 11 [ 4.1 Gold Creek Water Levels and Computed 21 Discharges -October, 1984 4.2 Gold Creek Water Levels and Computed 22 L Discharges -November, 1984 4.3 Gold Creek Water Levels and Computed 23 L Discharges -December, 1984 4.4 Delta Islands Air Temperature and 24 L Freezing -Degree Days Summary October, 1984 4.5 Delta Islands Air Temperature and 25 L Freezing -Degree Days Summary November, 1984 [ 4.6 Delta Islands Air Temperature and 26 Freezing -Degree Days Summary December, 1984 f~ 4.7 Talkeetna Weather Station Air Temperature 27 ' L and Freezing -Degree Days Summary September, 1984 L 4.8 Talkeetna Weather Station Air Temperature 28 and Freezing -Degree Days Summary r October, 1984 4.9 Talkeetna Weather Station Air Temperature 29 L and Freezing -Degree Days Summary November, 1984 4.10 Talkeetna Weather Station Air Temperature 30 L and Freezing -Degree Days Summary December, 1984 L 4.11 Watana Weather Station Air Temperature and 31 Freezing -Degree Days Summary September, 1984 L L ! ii l ' M15/31 4 LIST OF TABLES (Continued) Number Title Page 4.12 Watana Weather Station Air Temperature and 32 Freezing -Degree Days Summary October, 1984 4.13 Watana Weather Station Air Temperature and 33 r-~ Freezing -Degree Days Summary November, 1984 4.14 Watana Weather Station Air Temperature and 34 '-Freezing -Degree Days Summary I l_ December, 1984 1-4.15 Watana Streamgage Site, Air Temperature and 35 Freezing -Degree Days Summary ' -September, 1984 r-4.16 Watana Streamgage Site, Air Temperature and 36 I l-Freezing -Degree Days Summary October, 1984 I 4.17 Watana Streamgage Site, Air Temperature and I 37 l - Freezing -Degree Days Summary I November, 1984 l -4.18 Watana Streamgage Site, Air Temperature and 38 r ~ Freezing -Degree Days Summary December, 1984 4.19 Denali Weather Station Air Temperature and 39 f-Freezing -Degree Days Summary l_ September, 1984 r- 4.20 Denali Weather Station Air Temperature and 40 Freezing -Degree Days Summary October, 1984 r 4.21 Denali Weather Station Air Temperature and 41 I l_ Freezing -Degree Days Summary 1\Lr'\\/t:>rnhc,. 1QRLI. ' • ._ Y -•••--• I ·--I ' 4.22 Denali Weather Station Air Temperature and l_ 42 Freezing -Degree Days Summary l December, 1984 l t " iii 1- r- i i l_- r - I l ~ L L L M15/31 5 Number 4.23 4.24 4.25 4.26 LIST OF TABLES (Continued) Title Susitna River Freezeup, 1984 Slush Ice Porosity (%) Published Porosity Values for Various Materials Juvenile Anadromous Habitat Study Sites Times and Heights of High and Low Tides at Anchorage, Alaska 1984 iv Page 43 44 45 46 r·· l L r· L L L M15/31 6 Number 3.1 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 LIST OF FIGURES Title 1980-84 Susitna Freezeup Flow Summary Upper Susitna River Basin Air Temperature Variation September-December, 1984 Stage and Discharge Data, Cross Section at River Mile 40.0 Stage and Discharg·e Data, Cross Section at River Mile 47.9 (west) Stage and Discharge Data, Cross Section at River Mile 47.9 (east) Stage and Discharge Data, Cross Section at River Mile 59.7 (west) Stage and Discharge Data, Cross Section at River Mile 59.7 (east) Stage and Discharge Data, Cross Section at River Mile 76.8 Stage and Discharge Data, Cross Section at River Mile 84.6 Stage and Discharge Data, Cross Section at River Mile 86.3 Stage and Discharge Data, Cross Section at River Mile 87.8 Stage and Discharge Data, Cross Section at River Mile 90.0 Stage and Discharge Data, Cross Section at River Mile 91.7 Stage and Discharge Data, Cross Section at River Mile 93.3 Stage and Discharge Data, Cross Section at River Mile 95.9 (LRX-0.7) Stage and Discharge Data, Cross Section at River Mile 97.1 (LRX -1.0) v Page 12 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 r, I ' i l.~ r, I I" r' t. I , l. f ' l_ L L L I \._ .~ M15/31 7 Number 4.16 4.17 4.18 LIST OF FIGURES (Continued) Title Stage and Discharge Data, Cross Section at River Mile 98.0 (LRX -2.0) Susitna River Freezeup 1984, Slush Ice Porosity Values vs. Travel Time Published Porosity Values for Various Materials vi Page 62 63 64 I l_ M15/31 8 1.0 INTRODUCTION The 1984 lower Susitna River freezeup (below Talkeetna) was documented by visual observations, ground measurements and aerial photography. These methods are similar to those used during the previous 4 years of the on-going ice processes study. Emphasis during 1984 was placed on identifying dominant" ice processes influencing lower river ice cover formation. Hydraulic data were collected at several locations for use in modelling analyses. Several potential fish habitats were identified prior to the freezeup and were monitored as the ice front progressed through the lower river reach. General conclusions regarding low-er river freezeup based on data contained in this report should be avoided due to the unusual nature of ice cover progression attributed to mild weather during the 1984 freeze up. This report describes the chronology of ice cover development in Section 3, and presents miscellaneous data pertinent to ice modelling in Section 4 and in Appendices A and B. Most of the specific processes controlling freezeup, as well as those of ice cover progression, were previously reported in a series of ice study reports (R&M 1980, 1981, 1982 and 1983). Users of the data contained herein who are not familiar with Susitna River ice processes are referred to these published reports. This report refers to river mile (RM) numbers for identification of specific sites on the river mainstem, with the river mouth at Cook Inlet corresponding to RM 0. River Mile numbers have been annotated on the blueline photomosaic maps in Appendix C. -1- r, I l ~ I L ~ M1 5/31 9 2.0 SUMMARY The 1984 Susitna River freezeup was characterized by: 1. Low initial discharges and stage levels 2. Multiple ice bridges 3. Rapid lower river ice front progression 4. Middle river ice bridge at River Mile 105 5. Long reaches of open water between ice bridges, after ice cover progression 6. Thick anchor ice deposits Unusually mild weather during September and early October delayed formation of significant frazil ice volumes until the fourth week in October. The lack of late summer rainfall resulted in low freezeup stages compared to previous years. The ice bridge near Cook Inlet formed on October 27, 1984. The river stage was so low that within 48 hours of the initial bridge, a series of ice bridges formed in quick succession between river mile (RM) 5 and RM 52. These closures resulted primarily from grounding of large slush ice floes in shallow water. After the last ice bridge formed at RM 52, a continuous ice cover progressed on the lower river up to RM 88. On about November 2, formation of a middle river ice bridge at RM 105 blocked ice from continuing down to the lower river. The rate of middle river ice cover progression was subsequently rapid compared to previous years due to low water levels, large volumes of slush ice entering the reach from upstream, and early initiation of ice cover development. The middle river ice bridge cut off the upper Susitna slush ice contribution to the lower river ice front, and lower river progression significantly slowed, During November, the Chu!itna '"!tor"\rl T-.11 .... -.-+-.... ~II"" IOI~~C ... IIQ tributaries supplied some ice to the lower river ice front. Ice front progression eventually stopped completely after ice bridges developed on these tributaries in mid-November. The remaining open water between the lower river leading edge and the RM 105 ice bridge was of insufficient length for generation of substantial frazil ice volumes. -2- r - l ~ r, I l. I L -· M15/31 10 The middle river ice front progressed continuously, reaching Sherman (RM 130) in early December. Unusually cold air temperatures in November brought the number of accumulated freezing degree-days to the average total and also caused large volumes of frazil ice on the middle and upper Susitna, as well as on the Chulitna and Talkeetna Rivers. Although most of this ice contributed directly to the upstream advance of the two ice fronts, a secondary consequence was rapid and massive accumulations of anchor ice. The anchor ice was readily visible, since it accumulated sediment and acquired a light brown tint. Upstream of Curry (RM 120) the anchor ice formed thick layers on the channel bed in shallow areas. By ea.rly December, many of these formations were near the water surface, effectively changing local hydraulics of the channel by damming flow. The resulting backwater caused local stage increases which fractured shore ice along flow margins as buoyant lifting forces separated ice from the channel banks. Fragments of shore ice were often seen floating downstream during December. On about December 15 several shore ice fragments lodged on an anchor ice dam near RM 135.5. This ice jam prevented slush from continuing downstream and thus developed into a new ice front. The progression from this point was relatively short-lived, extending only up to RM 137 before the slush ice volume generated upstream was so minimal that sufficient thickening for continued upstream progression was no longer possible. The remaining open water gradually diminished as shore ice extended to- wards the channel center. As of late December the following reaches remained open, some containing intermediate ice bridges: RM 24 -26 RM 43 -46 (West channel) RM 49 -52 (East channel) -3- RM 92 -105 RM 131 -135 RM 137 -147 L L M15/31 11 3.0 CHRONOLOGY OF 1984 SUSITNA RIVER FREEZEUP On October 16, 1984, slush ice was first observed flowing down the mainstem at Gold Creek. Variable concentrations of ice were observed until the afternoon of October 22, when air temperatures warmed to 3°C and all ice disappeared. A full 6 feet of accumulated border ice disintegrated at Gold Creek during the following two days. Slush ice concentrations began to increase on October 25. On October 26, at river mile ( RM) 9, near the mouth of the Susitna River, a dense concentration of ice floes had accumulated during the high tide of 32.4 feet (Anchorage reference station) a.t about 7:30 a.m. (see Section 4.5). At RM 9 the tidal fluctuation was measured to range over 6 feet during this particular cycle. Tidal measurements were made using an overlapping series of staff gages installed on October 19, prior to the extreme monthly tide cycle. Slush ice floes on the Susitna River generally consisted of large pans of tightly packed but poorly bonded clusters of sintered ice crystals. Near the river mouth the ice pans had partially solidified, forming a rigid sheet 1-2 inches thick on the surface. Under this sheet, up to 3 feet of slush ice had not frozen solid. This condition of a solid surface layer was observed only on the reach near RM 9. Pan size was variable with average diameters ranging from 2 feet to over 6 feet. The surface water velocity during the high tide was less than 1 foot/sec. and at low tide about 2.5 feet/sec at center channel. Ice floes that drifted into the flow margin along the east bank became grounded when the tide receded. The following day, October 27, the ice concentration below RM 9 again increased during high tide. With substantially higher volumes of ice floes coming into this area from upstream due to cold air temperatures, an ice bridge developed near RM 5. Although the actual development was not observed, evidence of the formation process suggested the following scenario. The high tide on October 27 was near 33.0 feet at Anchorage. At that level it would have significantly decreased the water velocity in the reach of river near RM 9. Drifting ice entering this reach of near-zero velocity would quickly accumulate. A continuous unconsolidated -4- M15/31 12 ice cover was probably present from Cook Inlet up to about RM 12 at the high tide. As the tide receded, ice floes started flowing out to sea. However, before ice at RM 5 began moving, the water level had dropped sufficiently so that most floes grounded at the channel margin, resulting in a stable bottleneck which prevented movement of ice floes near center channel. Backwater diminished as the tide continued to recede. The increased water velocity stressed unconsolidated ice at RM 9, which eventually moved. However, because of the stable ice bridge at RM 5 the downstream ice cover only compressed, increased in thickness and created a backwater area. This backwater area stabilized the remaining ice above RM 9 so that no further movement took place. Since no direct observations were made of this, there is no way of knowing the upstream extent of the initial ice cover, but assuming a continuous inflow of slush, the cover would have rapidly lengthened. On October 29, an overflight revealed a complex and rapid ice cover development on the lower reach. From RM 5 a somewhat continuous cover extended to RM 19, adjacent to the entrance of Alexander Slough. The predominant process of advance was juxtaposition. Large areas of open water were present throughout the cover, indicating that little pressure was acting on the ice and no compression had occurred. By 10:30 a.m. on October 29, the leading edge was located at RM 19. No further advancement occurred due to insufficient ice from upstream. The leading edge consisted of thin layers of fine slush that accumulated diagonally across the channel from the area of high water velocity on the outside of the river bend to low velocity on the inside of the bend. Open water with no slush was noted from RM 19 to RM 25.9 at Susitna Station (USGS gage site) where a second ice bridge had formed. A continuous ice cover occurred upstream from RM 25.9 to RM 43 of the Delta Islands. An ice cover had also progressed up the Yentna River about 12 miles. The west channel through the Delta Islands, from RM 42.5 to RM 46, was entirely open. On the west channel a third ice bridge had formed at RM 46. This obstruction had prevented slush ice from drifting downstream to advance the ice cover above RM 42.5. From the ice bridge -5- I l- I- ! r- I L- f l r- I l ~ f L M15/31 13 at RM 46, an ice cover had progressed up the west channel to RM 51. At this point the main channel bifurcates creating the west and east channels. The ice cover progression had stopped here and there was open water up to RM 52. The east channel was open from RM 43 to RM 52. At RM 52 a fourth ice bridge had formed. Very little slush ice emerged from under the downstream edge of the bridge, indicating that most of the ice floes were retained by the advancing ice cover near the leading edge. This ice cover had progressed up to RM 55. Visual estimates of slush concen- trations at Gold Creek, 4 days before the initial ice bridge formed, were never less than 50% of the total open water surface a rea. On November 3, the leading edge of ice accumulation had progressed to RM 71.5 at an average rate of 4.1 miles/day from the ice bridge at RM 52'. At the three rivers' confluence, the Chulitna and Talkeetna Rivers appeared to be contributing most of the slush ice to the lower Susitna. At RM 105, slush ice had bridged the shallow channel. This bridge remained stable long enough to initiate an upstream progression of ice on the middle reach. The consequence of this new progression was a decreased supply of slush ice to the lower river ice front, ultimately delaying ice cover formation below RM 105. The leading edge progression rate slowed to under 2 miles/day on the lower river, being entirely dependent on slush from the Chulitna and Talkeetna Rivers and frazil generated below the ice bridge at RM 105. A warm weather period began on November 5 and lasted until the 10th. Ice concentrations sharply decreased during this period to less than 10% at Gold Creek on November 8. This subsequently decreased the rate of leading edge progression to 0.5 miles/day on the middle river and 0.2 miles/day on the lovter river. The open v.:~ter reaches befo;.v R~v1 105, through the east channel of the Delta Islands and between RM 26 and RM 20, remained open during this period. On November 10, cold air temperatures once again increased the ice concentrations. On November 13 the surface coverage was estimated at -6- r, i L- M15/31 14 80% by the Gold Creek observer. The middle river ice front advanced 6 miles (up to RM 121) and the lower river front moved upstream about 2 miles1 (up to RM 86). The middle river ice front progressed more rapidly due to a larger volume of slush ice generated in available open water reaches between Gold Creek and Watana. Open water leads on the lower river were slowly freezing over by a combination of upstream cover progression and border ice growth. The slush ice contributing to these processes originated from within open water reaches and from underneath the downstream edge of existing covers upstream. At that time, an estimated 75% of the slush forming the lower river ice cover above the Yentna River confluence originated from the Chulitna and Talkeetna Rivers. The Chulitna and Talkeetna Rivers formed ice bridges several miles upstream of the Susitna confluence on November 14. These ice bridges prevented slush from entering the Susitna and ice cover progression (on the Susitna) stopped at RM 88. An insufficient supply of slush prevented further upstream progression at the rates previously observed. In Slough 8A, ponds with black ice about 4-6 inches thick overflowed and the surrounding snow cover flooded on November 16, when the leading edge was located at RM 127. This indicated that groundwater levels rose. The entrance berm at RM 127 had not yet been overtopped. However, the berm at RM 126.1 had been flooded. Ice floes about 1 foot thick had partially breached the entrance berm and had become stranded, indicating that a depth slightly less than this had occurred over the berm. Using a minimum overtopping depth of 8 inches and an estimated flow width of 50 feet, then about 50 cfs could have entered the slough with a velocity of 2 fps. The ponds in Slough 8A increased in size prior to overtopping of the upper berm at RM 127, indicating a local increase in the height of the water table, due to the staged mainstem. The upper entrance to Slough 8A began overtopping on November 19 when the leading edge was at RM 128. This event was not nearly as dramatic as the overtopping observed in 1982. From the air it was difficult to tell that overtopping had -7- l ' I. I I l- M15/31 15 occurred. The snow cover was about 1 foot thick at the time, and mainstem water only seeped through the snow pack. On November 21, the leading edge on the middle river reached RM 129, near the entrance to Slough 9. No overtopping of the entrance berm occurred. By this time the river upstream of Devil Canyon had become ice covered, severely limiting the volume of frazil capable of being generated. The leading edge advance rate subsequently slowed to about 0.2 miles/day. The origin of the slush responsible for maintaining this rate of advance was primarily the open water reach from Devil Canyon to Sherman. This reach also developed massive anchor ice deposits. Anchor ice dams oc- curred at several areas throughout this reach, often forming to such thicknesses that backwater areas developed. The increased water surface elevation strained the border ice along flow margins, in many places causing it to fracture and float downstream to become incorporated in the ice cover. Anchor ice accumulated on the bottom in massive proportions. Thick layers often broke free from the bottom and floated downstream to also become part of the downstream ice cover. On December 15, staging induced by anchor ice growth at RM 135 caused a fracturing of upstream border ice. A large so·lid fragment drifted downstream but instead of floating down to the leading edge at RM 131 it became lodged at an anchor ice dam near RM 135, creating a new ice bridge. This ice bridge accumulated slush ice at the upstream edge. The new ice front prevented slush from continuing downstream to advance the previous leading edge. By December 20, the river under the Gold Creek bridge had frozen over and the leading edge was approaching RM 137. The open water below the ice dam at RM 135 remained as it appeared a week earlier. On the final observation flight, December 20, 1984, the leading edge on the Susitna River below the three rivers' confluence had reached RM 92, at -8- M15/31 16 a rate of 0.12 miles/day. The Talkeetna River was frozen over above the railroad bridge. The Chulitna River was open at the confluence but frozen over about three miles upstream. Extensive open leads existed in the Susitna main stem ice cover below Talkeetna. Open water still persisted on the east channel of the Delta Islands, although the flow velocity had diminished in many places and border ice was beginning to close the open channel in several areas. The leading edge progression is summarized in Table 3.1. The 1984 ice cover development had several interesting and different features which contrasted to those of previous years. In 1984, a large volume of anchor ice was observed from near Talkeetna to upstream beyond the Watana area. The onset of extremely cold weather early during freezeup, from November 10 through November 13, cooled the middle river below Gold Creek sufficiently to generate frazil ice, which due to the turbulent nature of this reach adhered to the bottom, forming anchor ice. When anchor ice covered the channel bed, saltating sediment particles and suspended sediment became entrained in the ice, giving it a brown coloration. Anchor ice often continues gaining mass by accumulating frazil. Eventually a critical thickness is attained giving the ice mass sufficient buoyancy to float, often taking with it entrained sediment and possibly bed material of various sizes. Rafts of anchor ice were frequently observed floating downstream. These rafts become incorporated in the ice cover further downstream. The rafts varied considerably in size. Some were quite large, with diameters of about 4-5 feet, but the most common anchor ice rafts observed were generally 1-2 feet across. Anchor ice generally develops every year to some extent upstream of Curry (RM 120), and during cold weather, in many areas between Ta! keetna and Gold Creek_ The cold ::1 i r +<>mn<> r::~t11 r<><> ,...,; -·· ~-···..--· _ .. _. ---· and low water levels caused early formation of this ice, which subsequently led to very thick and widespread deposits, with volumes exceeding those observed in previous years. -9- M15/31 17 The frequency of ice bridge formation in 1984 is most likely a direct effect of the low river flows during freezeup (Figure 3.1). The resulting shallow water in many places provided natural lodgement points which at higher water would be negotiable by the Ice floes. Observations during the 1984 freezeup confirmed the critical importance of large slush ice volumes to initiate and continue ice cover development. When open water contacts air colder than about -10°C, frazil ice forms. A steep, turbulent river reach can generate much more ice than a reach of lesser gradient due to a higher rate of cooling. Little new frazil will form once the open water surface area is about 70% covered by floating slush, since this interferes with heat exchange to the atmosphere. The length of open water required to generate a 70% slush coverage is dependent on the degree of turbulence and the prevailing air temperature. When the ice bridge formed at RM 105, very little frazil ice was generated in the open water reach downstream to the leading edge at RM 73. Much of the ice supplying the lower river leading edge after November 3 originated from the Chulitna and Talkeetna Rivers. This was eliminated on November 14 when ice bridges formed on the tributaries. Consequently, the lower river ice front received only minimal ice volumes which did not advance the leading edge. By the last field trip the remaining open water downstream of RM 105 (a length of approximately 13 miles in mid-December), was gradually freezing over by shore ice growing laterally out from the river banks. -10- M15/31 18 Table 3.1 1984 Susitna River Freezeup Leading Edge (LE) Progression Summary Date Location Rate of Advance 10/27/84 Ice Bridge RM5 Discontinuous Ice Cover 10/30/84 LE RM19 Discontinuous Ice Cover Ice Bridge RM26 Discontinuous Ice Cover LE RM43 D i sconti n uou s Ice Cover LE RM51 Discontinuous Ice Cover Ice Bridge RM52 Discontinuous Ice Cover LE RM55 Discontinuous Ice Cover 11/03/84 LE RM71.5 4.1 miles/day i Ice Bridge RM105 l_ r-11/05/84 LE RM73 0. 75 miles/day I LE RM109 2.0 miles/day L_o 11/07/84 LE RM74 0. 5 miles/ day l ' LE RM111 1.0 miles/day 11/09/84 LE RM74.5 0.25 miles/day l-LE RM112 0.5 miles/day 11/11/84 LE RM80 2. 75 miles/day [-~ . LE RM114 1.0 miles/day 11/13/84 LE RM86 3.0 miles/day LE RM121 3.5 miles/day [- l -11/14/84 LE RM88 2.0 miles/day LE RM123 2.0 miles/day r - 0 miles/day I 11/16/84 LE RM88 L_ LE RM127 2.0 miles/day L 11/19/84 LE RM90 0.67 miles/day LE RM128 0.33 miles/day L 11/21/84 LE RM91 0.5 miles/day LE RM129 0.33 miles/day L 11/27/84 LE RM92 0.17 miles/day LE RM130.5 0.25 miles/day L r -11-l~ 1980 USGS STREAMFLOW RECORD GO LD CREEK 15,000 (/) 1J.. (.) w 10,000 <!) a:: <t :z: 5,000 (.) (/) a 0 OCTOBER NOVEMBER DECEMBER 1982 USGS STREAMFLOW RECORD GOLD CREEK 15,000 (/) 1J.. (.) w 10,000 <!) a:: <t :z: (.) 5,000 ~ a OCTOBER NOVEMBER DECEMBER J J J 15 ,000 (/) 1J.. (.) w 10 ,000 <!) a:: <t :z: (.) (/) 0 (/) 1J.. (.) 5,000 0 15,000 w 10,000 <!) a:: <t ~ 5,000 (/) a 1981 USGS STREAMFLOW RECORD GOLD CREEK OCTOBER NOVEMBER DECEMBER 198 3 R BM CONSULT ANTS STREAMFLOW RECORD GOLD CREEK (BASED 01~ WIRE WEIGHT READINGS) liCE EFFECTED (ESTIMATED) ----------- 0~--------------~------~-------r---------------- OCTOBER NOVEMBER DECEMBER FIGORE 3.1 SUSITNA RIVER ICE PROCESSES 12 (/) 1J.. (.) - 15,000 w 10,000 <!) 1984 R BM CONSULTANTS STREAMFLOW RECORD GOLD CREEK (BASED ON WIRE WEIGHT READINGS) ~ ~ (.) 5,00 (/) a (ESTIMATED) ---------------- 0~---------------~--------------.---------------OCTOBER NOVEMBER DECEMBER ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT PRE PARE D FOR: R&M CONSULTANTS, INC. SUSITNA JOINT VENTURE M15/31 19 4.0 METEOROLOGY AND DATA COLLECTION 4.1 Meteorology Daily measurements of ice and meteorological parameters were made at the Gold Creek Bridge by Nancy Larson. Twice per day, usually at sun-up and sun-down, she obtained data on the current air temperature at the water surface, minimum and maximum daily air temperatures, water temper- ature, water velocity, stage, shore ice width and thickness, ·and estimated slush. ice concentration on the water surface. These data are listed in Appendix A. Daily flows are tabulated in Tables 4.1 to 4.3. Weather data from the Talkeetna Flight Service Station (National Weather Service), Watana (R&M Consultants) and Denali (R&M) for September through December 1984 are included in Appendix A. Air temperature data from these stations were summarized and are listed in Tables 4.4 to ·4.22, along with accumulated freezing-degree days. Plots of mean daily air temperatures in Figure 4.1 show relative temperature variations between stations, as well as temperature trends for the four months. As shown on the graphs, air temperatures generally decreased steadily through October. In November air temperatures began fluctuating considerably, with this trend continuing through December. November 1984 was colder than normal, while September, October and December all had above-normal temperatures. By the end of December, total accumulated freezing-degree days were far short of the historical average. Additional air temperature data from a site located in the Delta Islands (RM 47 .8) are shown. in Tables 4. 4 to 4. 6. In order to quantify the variation in air temperature between the Watana weather station, located on the high plateau adjacent to the river: and the r~ir temperature near the water surface, a thermograph recorded air temperatures at the streamgaging site since September, 1984. The data from this recorder are listed in Tables 4.15 to 4.18, along with the mean daily deviation from the Watana station. -13- [ l~ [ ~ [ ~ L L L L L L M15/31 20 4.2 Lower River Cross Sections In September, 1984, a total of 13 sections were surveyed on the lower river below Talkeetna. Six new cross-sections were located between Talkeetna and the Parks Highway Bridge at the following river miles: 84.6 86.3 87.8 90.0 91.7 93.3 Three cross-sections, originally surveyed in 1982, were re-surveyed in order to have recent data for sediment modelling. These sections were located at river miles: 95.9 (LRX-0. 7) 97.1 (LRX-1.0) 98 . 0 ( L RX -2 . 0) The primary purpose of these 9 sections is for the on-going river aggradation study, which will analyze potential aggradation between the Chulitna confluence and the Parks Highway Bridge. Details pertaining to the cross-section survey and field data collected were reported by R&M Consultants (1984). Four additional cross-sections were surveyed below the Parks Highway Bridge at river miles: 40.0 47.8 59.7 76.8 9.0 These sections will be used for estimating ice volumes and ice front pro- gression rates under with-project conditions. These four sections are not tied in to project datum. The elevations are based on an altimeter survey which established approximate elevations on all the east bank bench rna rks. -14- ~~ i r , ! l ~ ~ [ L L L Ml5/31 21 In addition to the 13 sections surveyed by R&M Consultants, two (2) cross-sections from the U.S. G. S. streamgage sites at Sunshine and Susitna Station were plotted and are included with the tabulated cross-section data in Appendix B. Cross-section locations have been delineated on the blueline photomosaic maps in Appendix C. Measurements of along the four stage, water velocity, sections below the and-ice thicknesses were made Parks Highway Bridge. Stage measurements were made along the 9 sections above the bridge. These data are included in Figures 4.5 to 4.19. Ice thicknesses are listed below. Lower Susitna River Ice Thicknesses River Mile Date 40 02/06/85 48 02/06/85 02/06/85 60 02/06/85 77 02/06/85 Solid Ice Thickness (feet) 3.0 2.0 2.0 2.5 2.0 Slush Ice Thickness (feet) 0.0 2.5 0.5 1.0 7.0 4.3 Porosity Measurements of Slush Ice Numerous measurements were made during the freezeup period in 1984 to quantify porosity of slush ice formed from frazil crystals. The value of this parameter is necessary for accurately determining the volume of ice generated with in a specific open water reach. The length of open water upstream of the measurement site, as well as the air temperature, to a great extent determine the porosity. During October 1984, a locations on the Susitna series River of measurements between Denali -15- were taken at several and Cook Inlet. The M15/31 22 objective was to document a change in porosity of slush ice relative to travel time since frazil formation. Recorded air temperatures in October at Denali and Watana were sufficiently low for substantial frazil generation, but at other river locations further downstream air temperatures remained generally too warm for much additional ice to form. Theoretically, this condition would lead to high porosities near Denali where the frazil is relatively new, and decreasing porosity values further downstream as the frazil crystals metamorphose from very small flat disc shapes to coarser, rounded particles consisting of several crystals sintered together. The slush was sampled with a wire basket, allowed to drain and then weighed on a balance beam scale. The resultant weight of slush was then compared to the weight of solid ice to obtain a value for the percentage of ice in the sample. The slush porosity is the difference between the percentage of ice in the sample and 100. The tabulated data are shown in Table 4.23 and plotted in Figure 4.20. As expected, the plot shows a decrease in porosity over time, and a slight increase with the slush contribution from the tributaries. Theoretical values for porosity of frazil are generally considerably higher than those measured on the Susitna. Published ice porosity values generally range from 40-70 percent. The range of values measured on the Susitna is slightly lower, between 29 and 55 percent. This could be explained by the long residence time of slush in the river, which early during freezeup corresponds to the travel time required to ne.gotiate the upper and middle river reaches, a distance of over 200 miles. As freezeup continues, more and more of the river begins generating frazil as air temperatures drop below freezing all along the river down to Cook 1~1~+ ····~~- Tt..~ I IIC ieach above Talkeetna probably generates the most frazi i due to the high degree of turbulence resulting in more mixing with cold air. Originating far upstream, the low porosity old slush has developed into a mass of relatively coarse-grained and rounded particles mixed with new high porosity frazil, which are generally very small discs. The resultant ice mass has the interstices between the old coarse grains occupied by -16-, r- L L M15/31 23 newer frazil. This arrangement produces very dense slush rafts with low porosities. For this reason, porosity values measured on the Susitna tend to decrease as freezeup progresses. Materials such as unconsolidated sediments (gravels and sands) show similar tendencies towards lower porosities with increasing grain size and also for poorly-sorted (coarse particles mixed with fines) sediment compared to well-sorted (uniform size) sediments. Porosity is dependent on particle shape, packing, and size distribution (Davis and DeWiest, 1966). Highly angular particles tend to be held apart by irregular, sharp corners, producing high valu·es of porosity for a given grain size. Subangular particles will contact along flat faces and have maximum compaction, while rounded particles will be less compact. Tabular particles (i.e., frazil discs) tend to form box-like openings, particularly in fine grained particles, resulting in high porosities. Porosities of materials other than ice are tabulated in Table 4.24 and plotted in Figure 4.21. 4.4 Observations at Fish Habitat Study Areas During the summer of 1984, Alaska Department of Fish and Game identified a series of sites between the Yentna River confluence and Talkeetna for the Resident Juvenile Habitat Study. Table 4.25 lists the study sites and river mile locations, as well as any documented effects on the sites during ice cover development. As indicated by the table, the majority of the listed study sites were not affected by mainstem river ice processes. Only side channels at Rustic Wilderness and Goose Creek were overtopped. Several sites were flooded by backwater as the mainstem became choked with ice, and as the main stem caused water to inundate the snowpack, eventually freezing solid. The result is similar in appearance to the mainstem ice cover, but snow ice rests on the channel bottom and has a generally smoother surface than the h ummocked texture typical of the main stem. -17- ' l l-' l_ r- I I~ r. I l~ M15/31 24 Several areas other than those listed in Table 4.25 were affected somewhat by ice-induced staging. Sunshine Slough at RM 86.7 was overtopped in mid-November, 1984, but not to the degree observed in previous years. A backwater area was also seen at the confluence of Sunshine Creek/Slough and the Susitna mainstem at RM 84.0. This backwater extended up the side channel approximately 200 yards. The side channel downstream of Goose Creek was overtopped by a substantial volume of water on November 3, 1984. The overtopping continued for about 10 days. Anchor ice was seen forming on the side channel bed and an ice front progressed slowly up the side channel from about RM 69.5. Mainstem stage eventually subsided at the side channel entrance and the overtopping flow was minimal by November 14. The interconnecting channel between the mainstem and east bank side channel at RM 51 was overtopped and the water inundated the side channel, regaining the mainstem at RM 50 and at Willow Creek. Several of the intermediate channels through the Delta Islands contained open water. Since no slush ice entered these channels, they remained essentially open until cold air temperatures caused closure by shore ice growth. Kroto Slough at RM 40.1 was slightly overtopped, but not nearly to the degree of previous years. Alexander Slough was not overtopped during the 1984 freezeup. In general, the 1984 lower river freezeup was marked by a minimal degree of flooding, with few sloughs or side channels overtopped. This resulted primarily from the low initial freezeup stages and water velocities, attributed to the relatively low discharges during ice cover progression. 4.5 Ice Bridge Formation Near Cook Inlet Downstream of R.M 15 in Cook Inlet. These tides often range over 30 feet above the datum for the Anchorage tide reference station. The local Anchorage tide datum, from which the high and low tide levels are calculated, is 16.4 feet below local mean sea level. The local datum should not be confused with the National Geodetic Vertical Datum of mean sea level which is referenced for, -18- M1 5/31 25 among other things, map elevations. For instance, the highest tides of about 34 feet (referenced to mean low water) corresponds to 17.6 feet above mean sea level. During a high tide cycle, water velocities are reduced considerably on the lower 10-15 miles of the Susitna River. The high tide in Cook Inlet restricts the normal flow of the river, raising the water level and reducing the velocity. Ice floes entering the backwater tend to accumulate rapidly since they are not conveyed through this reach at the same rate as they enter.. The accumulations often attain extensive proportions, resembling a continuous ice cover but still moving at a slow rate. When the tide begins to recede the water level drops and flow velocity increases. However, as the backwater effect is removed, the surface area of the river decreases. The river can no longer transport the accumulated volume of ice floating on the surface, and a jam results. The ice jam gains stability as the water level drops and more ice floes become grounded. This ice jam bridges the water surface, preventing other ice floes from passing out to sea. It has not been ascertained what critical volume of ice is required for an ice bridge to form in this manner. At low ice concentrations a bridge will not develop and accumulated ice will be flushed out to sea. Ice bridges have been observed to form at RM 5 and RM 9 during the 3 years (1982-1984) of ice study on the lower river. This has usually occurred during the latter half of October, corresponding to a period of extreme tide fluctuations (greater than 30 feet). Usually by this time air temperatures have dropped sufficiently throughout the watershed so that upper and middle Susitna reaches and major tributaries are generating substantial volumes of ice. When a high tidal cycle and low air temperatures coincide, the result is the formation of ice bridges at the observed locations. Staff gage measurements were obtained at RM 9 prior to formation of the ice bridge at RM 5 in 1984. The RM 9 site was selected since the ice bridge formed near this area in previous years. The objective was to monitor the rise and fall of river water and correlate the observations with -19"" i '-" r I l ~ r- l" [- L l M15/31 26 the Anchorage tide cycle. On October 19, three gages were set with the lower staff reading 2.0 feet at 1630 hours, about 2t hours after the daily high-high tide of 26.1 feet. The following low tide would occur at 2011 hours at a height of 8.8 feet. The surface flow velocity at 1630 hours was about 2 feet/second in mid-channel. On October 26 the preceding high tide level was demarcated on the upper staff gage at about 8.0 feet. The Anchorage high tide at 0716 hours was 32.4 feet. For a tidal variation of about 15 feet in Cook Inlet, the river water level at RM 9 fluctuated about 6 feet. The relationship is not linear, however, and to accurately correlate the affects of tides on water level at RM 9, a continuous recorder should be installed. However, the chances of recovering such a recorder after the start of slush ice movement during freezeup is minimal. Table 4. 26 is a reproduction from the 1984 Tide Tables of the National Oceanic and Atmospheric Administration showing the times and heights of high and low waters for the Anchorage area. -20- ~~ M15/31 27 l I. [_, Table 4.1 Gold Creek Water Levels ~ and Computed Discharges October, 1984 Date Wire Weight ( ft) Flow (cfs) I l ~ 1 2 3 4 6.84 7320 5 6.80 7200 l ~ 6 6.72 6960 7 6.66 6780 8 6.66 6780 l ~ 9 6.64 6720 10 6.70 6900 11 6.62 6660 12 6.52 6360 ~. ~ 13 6.49 6270 14 6.22 5550 15 5.99 5000 r ~ 16 5.99 5000 17 5.77 4430 18 5.71 4280 [- 19 5.43 3800 20 5.41 3700 21 5.63 3900 22 5.74 4300 ~ ~ 23 5.91 4500 24 5.96 4800 25 5.65 4000 r ~ 26 5.15 3080 ,_ 27 4.75 2650 28 4.51 2410 29 4.29 2230 [ 30 4.21 2170 31 4.22 2190 [ [ L L L -21- I . Ml5/31 28 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Table 4.2 Gold Creek Water Levels and Computed Discharges November, 1984 Wire Weight (ft) 3.84 Flow (cfs)* 1870 1900 2200 2340 2580 3120 3030 3010 3080 2980 2780 2610 2820 2880 2790 2970 2910 3010 2960 3820 3170 3270 3270 3150 3350 3040 2890 3100 3130 3240 3.88 4.25 4.43 4.68 5.18 5.11 5.09 5.15 5.07 4.88 4.71 4.92 4.78 4.89 5.06 5.01 5.09 5.05 5.65 5.22 5.29 5.29 5.21 5.35 5.12 4.99 5.19 5.19 5.27 Water Surface Elevation (Surveyed) 4.66 (2550cfs) 4.92 (2800cfs) 4.88 (2750cfs) 5.08 (3000cfs) * Stage levels are affected by anchor ice and shore ice from November 3 through December 15. -22- M15/31 29 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Table 4.3 Gold Creek Water Levels and Computed Discharges December 1984 Wire Weight (ft) 5.32 5.35 5.39 5.38 5.39 5.27 5.33 5.33 5.36 5.39 5.46 5.90 8.49 Ice Covered Flow (cfs) * 3310 3350 3410 3390 3410 3240 3320 3320 3360 3410 3520 4300 * Stage levels are affected by anchor ice and shore ice from November 6 th rr\11,-,h llo..-o.n-oho.-1 t;. ... ,,, --:;:,•• ----•••-v• . ....,. -23- M15/31 30 Table 4.4 Delta Islands. Air Temperature and Freezing Degree-Days Summary October 1984 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Minimum (°C) 6.0 -3.8 -2.5 1 . 1 1.0 1.0 -2.5 -3.1 -5.0 -3.5 -4.4 -7. 1 -9.0 -9.3 -8.9 -12.0 -8.5 -11. 1 -3.6 -1.9 -3.8 -7.9 -10.0 -15.2 -17.3 -19.0 -23.0 -12.0 -13.0 Mean Monthly Air Temperature Tn+~l ~Ann+hJ,, C .... .a~.,.i""'-1'"'\--.... --_n ..... ,,,.. 1 _.'-_1 lrl-11'-111 1 I I '-'-£-III::J .....,V:::;11 CC L.,./Qy~ Maximum (°C) 13.2 11.5 8.5 9.2 5.0 2. 1 4.5 3.9 0.8 4.9 6.5 4.0 3.5 5.5 4.5 1.5 3.7 -1.0 -1.9 -0.8 0.4 -1.0 1.0 -1.7 -3.5 -3.7 -7.7 -6.0 -4.0 11'"\''l c:: JVk.v Total Accumulated Freezing Degree-Days 102.5 -24- Average ( °C) 9.6 3.9 3.0 5.2 3.0 1. 6 1:0 0.4 -2.1 0.7 1 . 1 -1.6 -2.8 -1.9 -2.2 -5.3 -2.4 -6.1 -2.8 -1 .4 -1.7 -4.5 -4.5 -8.5 -10.4 -11.4 -15.4 -9.0 -8.5 M15/31 31 Table 4.5 Delta Islands Air Temperature and Freezing Degree-Days Summary -J November 1984 Date Minimum (°C) Maximum (°C) Average (°C) 1 -20.0 -6.5 -13.3 2 -22.0 -8.0 -15.0 3 -21.5 -8.5 -15.0 4 -20.5 -8.5 -14.5 5 -12.0 -3.5 -7.8 6 -10.5 -2.8 -6.7 7 -15.0 -5. 1 -10. 1 8 -20.5 -8.7 -14.6 9 -23.0 -11.5 -17.3 10 -26.0 -13.5 -19.8 11 -28.0 -17.0 -22.5 12 -30.0 -18.0 -24.0 13 -30.0 -19.0 -24.5 14 -29.0 -10.5 -19.8 15 -12.5 -7.5 -10.0 16 -19.0 -10.0 -14.5 17 -20.5 -10.5 -15.5 18 -19.0 -8.5 -13.8 19 -22.0 -10.0 -16.0 20 -10.0 0.0 -5.0 21 -10.0 -1.5 -5.8 22 -10.0 -4.5 -7.3 23 -9.5 -9.0 -9.3 24 -12.0 -9.5 -10.8 25 -19.0 -11.0 -15.0 26 -24.0 -12.5 -18.3 27 -27.0 -13.5 -20.3 28 -15.0 -10.0 -12.5 29 -16.0 -9.0 -12.5 30 -10.5 -7.5 -9.0 Mean Monthly Air Temperature -14. 0°C Total Monthly Freezing Degree-Days 420.5 Total Accumulated Freezing Degree-Days 523.0 -25- L r- ~~ [ l ' L L L L L L L [ L L r "'" L L L M15/31 32 Table 4.6 Delta Islands Air Temperature and Freezing Degree-Days Summary December 1984 Date Minimum (°C) Maximum (°C) 1 -10.0 -6.0 2 -17.0 -3.5 3 -5.0 -4.5 4 -8.0 -4.2 5 -8.0 -2.5 6 -11.0 -7.1 7 -10.0 -7.8 8 -14.5 -7.5 9 -26.0 -17.5 10 -27.0 -16.0 11 -24.0 -16.0 12 -28.0 -22.0 13 -28.0 -21.0 14 -30.0 -25.0 15 -25.0 -13.5 16 -13.5 -10.5 17 -11.5 -7.5 18 -7.5 -4.5 19 -20.0 -6.0 20 -23.0 -19.0 21 -20.0 -12.5 22 -12.5 -9.0 23 -12.0 -8.0 24 -18.0 -12.0 25 -17.0 -10.5 26 -17.0 -10.0 27 -23.0 -17.0 28 -26.0 -20.0 29 -20.0 -12.5 30 -12.5 -7.5 31 -7.0 -5.5 Mean Monthly Air Temperature -14.2°C 441.1 Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days -26- aaA 1 vVIo I Average (°C) -8.0 -10.3 -4.8 -6. 1 -5.3 -9. 1 -8.9 -11.0 -21.8 -21.5 -20.0 -25.0 -24.5 -27.5 -19 .. 3 -12.0 -9.5 -6.0 -13.0 -21.0 -16.3 -10.3 -12.0 -15.0 -13.8 -13.5 -20.0 -23.0 -16.3 -10.0 -6.3 M15/31 33 Table 4. 7 Talkeetna Weather Station Air Temperature and Freezing Degree-Days Summary September 1984 Day Minimum (oC) Maximum (oC) Average (°C) 1 0.6 17.8 2 0.0 18.9 3 1.1 18.3 4 1.1 18.3 5 0.6 18.3 6 3.9 17.2 7 5.6 16.1 8 6.7 20.0 9 2.2 18.9 10 0.6 20.6 11 1.1 18.3 12 2.2 14.4 13 6.7 11 . 1 14 4.4 16. 1 15 4.4 16.7 16 1.1 16.7 17 5.6 12.8 18 5.6 12.2 19 2.2 11 . 1 20 0.6 13.9 21 -4.4 14.4 22 -2.8 11. 1 23 1.1 12.8 24 5.0 11 . 1 25 6. 1 14.4 26 2.2 15.6 27 2.2 16.7 28 0.0 13.9 29 6.7 14.4 30 7.2 14.4 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -27- 9.4 9.4 10.0 10.6 9.4 10.6 11.1 13.3 10.6 10.6 10.0 8.3 8.9 10.6 10.6 8.-9 9.4 8.9 6.7 7.2 5.0 7.2 6.1 8.9 8.9 8.3 8.9 8.3 10.6 11.1 () () v.v 0.0 M15/31 34 Table 4.8 Talkeetna Weather Station Air Temperature and Freezing Degree-Days Summary October 1984 Day Minimum (oC) Maximum (oC) Average (°C) 1 2.2 15.0 2 3.9 13.3 3 -1 . 1 12.2 4 -3.9 11. 1 5 -2.2 11. 1 6 2.2 12.2 7 0.6 8.9 8 0.6 5.0 9 -1.1 7.2 10 -4.4 7.2 11 -6.1 4.4 12 -2.2 6.1 13 -3.3 7.8 14 -7.2 5.0 15 -7.2 2.9 16 -6.7 10.6 17 -6.7 8.9 18 -9.4 5.0 19 -8.3 5.0 20 -2.8 2.2 21 0.6 2.2 22 1.1 8.3 23" -0.6 2.2 24 -5.6 1 . 1 25 -4.4 3.9 26 -8.9 3.9 27 -1 1 . 1 1 . 1 28 -13.3 2.8 29 -12.2 -2.2 30 -8.9 -2.8 31 -6.1 0.6 MQ.:ln ftl11"\n+hl,, A.i.,.. To.t"''"'',.....L\.~"':"1-4--....... - '"'--·· ,,,_.,l'-1111 1"11 1'-IIII"""'~IQ\o.\..III'C' Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -28- 8.9 8.9 5.6 3.9 4.4 7.2 5.0 2.8 3.3 1. 7 0.6 2.2 2.2 -1 . 1 -2.2 2.2 1 . 1 -2.2 -1.7 0.0 1.7 5.0 1 . 1 -2.2 0.0 -2.2 -5.0 -5.0 -7.2 -5.6 -2.8 1 AO ,-.. J.V \.., 37.2 37.2 72.0 M15/31 35 Table 4.9 Talkeetna Weather Station Air Temperature and Freezing Degree-Days Summary November 1984 Day Minimum (oC) Maximum (oC) Average (°C) 1 -12.2 1.1 2 -13.9 1.1 3 -15.6 -1.7 4 -15.0 -2.8 5 -5.6 1.1 6 -6. 1 1. 7 7 -8.9 -1.7 8 -15.0 -2.8 9 -17.2 -8.9 10 -19.4 -7.8 11 -21 . 1 -10.6 12 -19.4 -7.2 13 -20.5 -7.2 14 -15.0 -6.7 15 -6.7 -1.7 16 -13.3 -2.2 17 -14.4 -3.9 18 -6. 1 -2.2 19 -13.9 -2.8 20 -3.9 2.8 21 -1. 1 1 . 1 22 -13.9 -1 . 1 23 -10.0 -8.3 24 -8.9 -6.7 25 -15.0 -8.9 26" -22.2 -10.6 27 -21. 1 -7.8 28 -8.3 -5.6 29 -8.3 -4.4 30 -6. 1 -3.9 Mean Monthly Air Temperature Totai Monthiy Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -29- -5.6 -6.1 -8.3 -8.9 -2.2 -2.2 -5.0 -8.9 -12.8 -13.3 -15.6 -13.3 -13.9 -10.6 -3.9 -7.8 -8.9 -3.9 -8.3 -0.6 0.0 -7.2 -8.9 -7.8 -11 . 7 -16.1 -14.4 -6.7 -6. 1 -5.0 -8.1 °C 244.0 281.2 263.0 I ~ L M15/31 36 Table 4.10 Talkeetna Weather Station Air Temperature and Freezing Degree-Days Summary December 1984 Day Minimum (oC) Maximum (oC) Average (°C) 1 -3.9 -0.6 2 -3.3 0.6 3 0.0 2.8 4 -0.6 3.9 5 -2.2 2.2 6 -7.2 -2.2 7 -5.6 -3.3 8 -8.9 -3.9 9 -23.3 -7.2 10 -23.9 -10.0 11 -21.7 -10.0 12 -25.0 -16. 1 13 -26.7 -11.7 14 -26.7 -9.4 15 -20.0 -9.4 16 -9.4 -6.7 17 -6.7 -4.4 18 "-4.4 -1.1 19 -11.1 -1 . 1 20 -22.8 -10.0 21 -22.2 -8.9 22 -11.7 -4.4 23 -15.0 -3.9 24 -21.7 -15.0 25 -16.7 -7.8 26 -22.2 -8.9 27 -23.3 -12.2 28 -23.3 -12.8 29 -13.3 -8.9 30 -8.9 -2.8 31 -2.2 1.7 Mean Monthiy Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -30- -2.2 -1.1 1. 7 1.7 0.0 -4.4 -4.4 -6.1 -15.0 -16.7 -15.6 -20.6 -19.4 -18.3 -14.4 -7.8 -5.6 -2.8 -6. 1 -16.0 -15.6 -7.8 -9.4 -18.3 -12.2 -15.6 -17.8 -18.3 -11 . 1 -5.0 0.0 -9. 8°C 307.7 588.9 670.0 I I. M1 5/31 37 Table 4.11 Watana Weather Station Air Temperature and Freezing Degree-Days Summary September 1984 Day Minimum (oC) Maximum (oC) 1 0.1 14.3 2 0.0 . 13.5 3 -1.6 12.8 4 4.4 13.1 5 4.6 14.0 6 4.5 11 . 9 7 3.1 11.8 8 -0.3 13.2 9 -0. 1 15.5 10 0.3 15.4 11 -1.2 14.4 12 0.8 12.5 13 2.9 9.5 14 3.3 13. 1 15 5.3 13.2 16 -0. 1 13.9 17 0.4 11.0 18 1. 9 7.7 19 0.0 6.5 20 -0.5 8.5 21 -3.0 14.4 22 -2.7 11.9 23 -0.3 10.2 24 1.8 9.2 25 2.6 10. 1 26 0.3 10.4 27 -1.7 11.4 28 -0.2 10.3 29 3.2 9.4 30 4.7 10.8 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -31- Average (°C) 7.2 6.8 5.6 8.8 9.3 8.2 7.5 6.5 7.7 7.9 6.6 6.7 6.2 8.2 9.3 6.9 5.7 4.8 3.3 4.0 5.7 4.6 5.0 5.5 6.4 5.4 4.9 5. 1 6.3 7.8 ' l ~ ~~ [: I' I l ~ '-i I . r I I . M15/31 38 Table 4.12 Watana Weather Station Air Temperature and Freezing Degree-Days Summary October 1984 Day Minimum (oC) Maximum 1 2.9 10.7 2 0.5 8.9 3 -2.5 8.3 4 -5.8 7.8 5 -1.1 6.1 6 0.1 6.8 7 -2.2 7.2 8 0.1 6.7 9 -2.4 3.4 10 -5.0 5.5 11 -4.5 5.2 12 -1.9 2.4 13 -3.2 4.2 14 -5.5 0.2 15 -8.4 0.5 16 -5.0 2.0 17 -11 . 1 3.3 18 -7.6 4.2 19 -6.6 1. 5 20 -7.5 -2.2 21 -2.2 3.2 22 0.3 4.5 23 -5.3 1. 2 24 -10.8 0.0 25 -12.7 -0.7 26 -14.0 -2.0 27 -14. 1 -1 . 1 28 -14.3 -4.5 29 -16.2 -8.3 30 -15.8 -9.4 31 -11.7 -4.6 Mean Monthly Air Temperature Tolai Monthiy Freezing Degree-Days Total Accumulated Freezing Degree-Days (oC) Average Historical Accumulated Freezing Degree-Days -32- Average (°C) 6.8 4.7 2.9 1.0 2.5 3.5 2.5 3.4 0.5 0.3 0.4 0.3 0.5 -2.7 -4.0- -1.5 -3.9 -1.7 -2.6 -4.9 0.5 2.4 -2.1 -5.4 -6.7 -8.0 -7.6 -9.4 -12.3 -12.6 -8.2 -2.0°C 93.6 93.6 140.0 r L L L r ( ~ L L L [" - L [ f~ [ l_- M15/31 39 Table 4.13 Watana Weather Station Air Temperature and Freezing Degree-Days Summary November 1984 Day Minimum (oC) Maximum (oC) 1 -14.9 -1.5 2 -14.3 -5.9 3 -14.2 -2.6 4 . -14.6 -8.1 5 -9.2 -3.5 6 -4.8 -2.0 7 -7.7 -3.3 8 -7.9 -3A 9 -17.0 -6.6 10 '-21.3 -12.8 11 -23.4 -16.8 12 -25.0 -15.9 13 -22.0 -13.5 14 -20.7 -13.5 15 -13.3 -7.4 16 -14.3 -7.5 17 -16.3 -10.3 18 -14.9 -8.5 19 .:.16.2 -10.5 20 -12.0 0.4 21 -4.9 1 .3 22 -10.7 -4.6 23 -11.0 -7.6 24 -12.7 -9.6 25 -17. 1 -12.6 26 -22.1 -17.8 27 -23.2 -12. 1 28 -14.7 -11.7 29 -13.3 -10.4 30 -13.3 -8.3 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total .Aaccumu!ated Freezing Degt·ee-Days Average Historical Accumulated Freezing Degree-Days -33- Average (°C) -8.2 -10. 1 -8.4 -11 .4 -6.4 -3.4 -5.5 -5.7 -11.8 -17. 1 -20.1 -20.5 -18.2 -17. 1 .-10.4 -10.9 -13.3 -11.7 -13.4 -5.8 -1.8 -7.7 -9.3 -11 . 2 -14.9 -20.0 -17.7 -13.2 -11.9 -10.8 -11.2°C 347.5 44i. i 420.6 [ L L L [ L L L L L L L M15/31 40 Table 4.14 Watana Weather Station Air Temperature and Freezing Degree-Days Summary December 1984 Day Minimum (oC) Maximum 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 -8.5 -8.7 -4.9 -2.9 -6.7 -10. 1 -9.5 -9.3 -19.3 -20.6 -21.6 -24.5 -11.3 -8.4 -12.9 Mean Monthly Air Temperature Tl"'lt:=~l Ml"'lnthlu l=roo7in..., !'),.....,,...,..,._f)~.,~ · ---· ···-··-···r · · ---·••.:::J ...... -~· ""'""' LJQY~ -5.8 -4.1 -2.9 0.0 -1.0 -6.7 -6.7 -6.7 -9.4 -15.5 -16.5 -18.7 -7.9 -4.0 -3. 1 (oC) Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days *Estimates based on linear regression with Talkeetna (NWS) -34- Average ( °C) -7.2 -6.4 -3.9 -1.5 -3.9 -8.4 -8. 1 -8.0 -14.4 -18.1* -17.9* -22 .4* -19. 1 -21.6 .-16. 8* -10. 9* -9.6 -6.2 -8.0 -18.4* -17.9* -10.9* -12 .3* -20.3* -14.8* -17.9* -19.9* -20.3* -13.9* -8.4* -3.9* ,.,1"\., , .:J;J I • .:J . 822.4 874.4 r .. I l_ I l ~ [ L L L L L M15/31 41 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Table 4.15 Watana Streamgage Site Air Temperature and Freezing Degree-Days Summary September 1984 Minimum (°C) Maximum (°C) Average (oC) -1.0 12.4 5.7 -0.9 3.2 1.2 -1.0 10.1 4.6 3.8 12.0 7.9 5.0 11 . 7 8.4 5.0 10.5 7.8 5.0 10.5 7.8 0.5 13.0 6.8 -1.5 13.0 5.8 -1.0 12.0 5.5 -2. 1 13.2 5.6 1.2 11.5 6.4 3.8 7.2 5.5 2.9 10.2 6.6 6.1 13.2 9.7 0.4 14.0 7.2 -0.2 8.7 4.3 3.0 6.6 4.8 2.8 5.5 4.2 0 9.0 4.5 -4.1 9.0 2.5 -4.0 10. 1 3.1 -2.3 8.0 2.9 -1.3 7.2 3.0 3.0 8.8 5.9 1 .0 17. 1 9. 1 -2.0 11.0 4.5 -1.0 8.0 3.5 4.0 7.5 5.8 3.2 10.5 6.9 Mean Monthly Air Temperature 5.6°C Total Monthly Freezing Degree-Days 0 Total Accumulated Freezing Degree-Days 0 -35- Deviation From Watana Weather Station (oC) -1.5 -5.6 -1.0 -0.9 -0.9 -0.4 0.3 0.3 -1.9 -2.4 -1.0 -0.3 -1.7 -1.6 0.4 0.3 -1 .4 0 0.9 0.5 -3.2 -1.5 -2. 1 -2.5 -0.5 3.7 -0.4 -1.6 -0.5 -0.9 Avl'!r;~al'! -0 qor: --·-·-·...;,----- l ~ M15/31 42 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Table 4.16 Watana Streamgage Site Air Temperature and Freezing Degree-Days Summary October 1984 Minimum (°C) Maximum (°C) Average (°C) 3.0 11 .4 7.2 1. 2 7.9 4.6 -1.2 7.9 3.4 -6.2 8.0 0.9 -2.0 5.0 1.5 0.9 5. 1 3.0 -1.7 4.8 1. 6 1.0 5.0 3.0 -0.3 3.0 1.4 -6. 1 5.7 -0.2 -4.3 3.5 -0.4 -1.0 3.1 1.1 -3.0 4.8 0.9 -4.9 0.5 -2.2 -7. 1 -2.0 -4.6 -5. 1 3.0 -1. 1 -8.8 1.2 -3.8 -7.5 1.1 -3.2 -3.5 -0.5 -2.0 -6.3 -2. 1 -4.2 -2.9 3.5 0.3 0.0 3.1 1.6 -1.8 2.5 0.4 -9.5 -3.0 -6.3 -13.5 -8.0 -10.8 -13.0 -6.0 -9.5 -14.0 -6.0 -10.0 -14.9 -9.5 -12.2 -15.5 -7.8 -11.7 -15.2 -10.5 -12.9 -16.3 -9.1 -12.7 Mean Monthly Air Temperature -2.5°C Total Monthly Freezing Degree-Days 107.8 Total Accumulated Freezing Degree-Days 107.8 -36- Deviation From Watana Weather Station (oC) 0.4 -0.1 0.5 -0. 1 -1.0 -0.5 -0.9 -0.4 0.9 -0.5 -0.8 0.8 0.4 0.5 -0.6 0.4 0.1 -1.5 0.6 0.7 -0.2 -0.8 1.7 -0.9 -4.1 -1.5 -2.4 -2.8 0.6 -0.3 -4.5 Average -0.5°C I, r ~ l' [ ~ L L L L M15/31 43 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Table 4.17 Watana Streamgage Site Air Temperature and Freezing Degree-Days Summary November 1984 Minimum (°C) Maximum (°C) Average (°C) -13.5 -9.0 -11 .3 -15.2 -11.0 -13. 1 -15.0 -10.0 -12.5 -17.5 -13.0 -15.3 -13.5 -5.7 -9.6 -6.0 -4.8 -5.4 -6.5 -4.5 -5.5 -9.0 -7.0 -8.0 -16.0 -9.5 -12.8 -22.0 -17.0 -19.5 -26.0 -22.0 -24.5 -'27.0 -22.0 -24.0 -24.0 -18.0 -21.0 -20.0 -15.0 -17.5 -15.0 -9.5 -12.3 -17.0 -10.0 -13.5 -20.0 -14.0 -17.0 -15.0 -9.5 -14.0 -19.0 -15.0 -17.0 -14.0 -3.5 -8.8 -6.0 -1.5 -3.8 -12.0 -6.0 -9.0 -13.0 -11.5 -12.3 -12.5 -11.5 -12.0 -14.0 -12.0 -13.0 -22.0 -14.0 -18.0 -27.0 -15.0 -21.0 -16.0 -14.5 -:15.3 -15.0 -12.0 -13.5 -13.5 -12.0 -12.7 Mean Monthly Air Temperature -13.8°C Total Monthly Freezing Degree-Days 413.2 Total Accumulated Freezing Degree-Days 521.0 -37- Deviation From Watana Weather Station (oC) -3. 1 -3.0 -4.1 -3.9 -3.2 -2.0 0 -2.3 -1.0 -2.4 -3.9 -4.4 -2.9 -0.4 -1.9 -2.6 -3.7 -2.3 -3.6 -3.0 -2.0 -1.3 -3.0 -0.8 1. 9 2.0 -3.3 -2. 1 -1.6 -1.9 Average -2.2°C r, I l' L L L L M15/31 44 Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Table 4.18 Watana Streamgage Site Air Temperature and Freezing Degree-Days Summary December 1984 Minimum (°C) Maximum (°C) Average (°C) -11.5 -7.0 -9.3 -7.0 -4.5 -5.8 -4.5 -2.5 -3.5 -9.0 -4.0 -6.5 -11.7 -9.0 -10.4 -11.5 -10.5 -11.0 -9.5 -8.5 -9.0 -25.0 -11.0 -18.0 -24.0 -17.0 -20.5 -:24.0 -17.0 -20.5 -27.0 -22.0 -24.5 -25.0 -21.0 -23.0 -28.0 -25.0 -26.5 ·-28.0 -16.0 -22.0 -15.5 -13.5 -14.5 -15.0 -10.5 -12.8 -10.5 -7.0 -8.8 -21.0 -7.0 -14.0 -23.0 -20.0 -21.5 -23.0 -17.0 -20.0 -17.0 -11.5 -14.3 -11.5 -9.0 -10.3 -25.0 -10.0 -17.5 -25.0 -9.0 -17.0 -25.0 -8.5 -16.8 -27.0 -23.0 -25.0 -23.0 -22.0 -22.5 -20.0 -15.0 -17.5 -15.0 -7.0 -11.0 -7.5 -3.0 -5.3 -4.5 -3.8 -3.0 Mean Monthly Air Temperature -14.9°C Total Monthly Freezing Degree-Days 463.1 Total Accumulated Freezing Degree-Days 984.1 -38- Deviation From Watana Weather Station (oC) -2. 1 0.6 0.4 -5.0 -6.5 -2.6 -0.9 -10.0 -6.1 -2.4 -6.6 -0.6 -7.4 -0.4 2.3 -1.9 0.8 -7.8 -13.5 -1 .6 3.6 0.6 -5.2 3.3 -2.3 -7.1 -2.6 -2.8 2.9 3.1 0.9 Average -2.5°C i 0 ! r ~ L - l L l_ M15/31 45 Table 4.19 Denali Weather Station Air Temperature and Freezing Degree-Days Summary September 1984 Day Minimum (oC) Maximum (oC) 1 -3.1 12.0 2 -0.1 1 1. 9 3 -2.3 10.8 4 1.7 11.9 5 1.3 12.8 6 3.3 10.8 7 3.5 11.5 8 0.5 13.7 9 -1.2 14.7 10 -1.6 13.0 11 -0.5 13.1 12 -1.6 10.8 13 2.3 8.4 14 -0.4 13.5 15 1. 5 10.6 16 -0.5 12.2 17 3.5 10.5 18 1.6 8.8 19 0.4 5.7 20 -1 . 1 6.0 21 -5.0 9.5 22 -3.1 11. 1 23 -1.4 11.2 24 0.9 9.7 25 0.9 8.7 26 1.5 8.7 27 -2.7 10.4 28 -2.9 9.3 29 2.1 11.5 30 3.0 9.7 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezina DeareP--IJ;w~ --· ----·,- Average Historical Accumulated Freezing Degree-Days -39- Average (°C) 4.5 5.9 4.3 6.8 7. 1 7.1 7.5 7. 1 6.8 5.7 6.3 4.6 5.4 6.6 6. 1 5.9 7.0 5.2 3.1 2.5 2.3 4.0 4.9 5.3 4.8 5.1 3.9 3.2 6.8 6.4 5.4°C 0.0 0.0 23.0 M15/31 46 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Table 4.20 Denali Weather Station Air Temperature and Freezing Degree-Days Summary Minimum (°C) 2.6 1 .2 -3.5 -6.7 -3.8 -1.5 -2.2 -1.0 -4.0 -7.9 -8.4 -1. 1 -5. 1 -6.7 -10. 1 -9.9 -15.5 -14.9 -11 . 1 -11.3 October 1984 Maximum (°C) 9.9 7.7 7.0 6.7 6.1 8.4 5.5 7.5 2.9 3.1 2.3 1.7 2. 1 -2.7 -1.6 0.3 -1.2 1. 9 -1.9 -4.3 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days Average (°C) 6.3 4.5 1.8 0.0 1. 2 3.5 1.7 3.3 -0.6 -2.4 -3.1 0.3 -1.5 -4.7 -5.9 -4.8 -8.4 -6.5 -6.5 -7.8 -1.4* 0.8* -4.4* -8.2* -9.7* -11.2* -10. 7* -12.8* -16.1* -16.5* -11 .4* -4.2°C 144.6 144.6 208.0 * Estimate based on linear regression with Watana Weather Station -40- I l __ ~ M15/31 47 Table 4.21 Denali Weather Station Air Temperature and Freezing Degree-Days Summary November 1984 Day Minimum (°C) Maximum (oC) 1 2 -15.1 -10.1 3 -18.5 -7.6 4 -14.3 -9.2 5 -13.0 -3.1 6 -7.8 -1.5 7 -8.3 -3.6 8 -8.7 -7.5 9 -13.9 -8.5 10 -21.4 -11.8 11 -28.4 -16.8 12 -28.7 -19.4 13 -32.3 -17.1 14 -29.4 -16. 1 15 -17.4 -9.8 16 -18.6 -9.3 17 -19.4 -14.6 18 -21.1 -10.1 19 -23.8 -14.4 20 -15.9 3.3 21 -5.8 3.1 22 -13.3 -5.3 23 24 -15.4 -8.9 25 -21.0 -14.0 26 -24.4 -19.4 27 -28.7 -18.7 28 -25.2 -20.2 29 -21. 1 -15.4 30 -15.4 -12.0 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Total Accumulated Freezing Degree-Days Average Historical· Accumulated Freezing Degree-Days Average ( °C) -8.2* -12.6 -13. 1 -11.8 -8. 1 -4.7 -6.0 -8. 1 -11 . 2 -16.6 -22.6 -24.1 -24.7 -22.8 -13.6 -14.0 -17.0 -15.6 -19. 1 -6.3 -1.4 -9.3 -9.3* -12.2 -17.5 -21.9 -23.7 -22.7 -18.3 -13.7 -14.3°C 430.2 574.8 579.0 *Estimate based on linear regression with Watana Weather Station -41- r- I l l. l ~ I - t i l. l. [ L_ M15/31 48 Table 4.22 Denali Weather Station Air Temperature and Freezing Degree-Days Summary December 1984 Day Minimum (oC) Maximum (oC) 1 -12.9 -6.9 2 -14.6 -7.8 3 -10.9 -3.7 4 -4.8 5. 1 5 -7.3 0.9 6 -12.2 -5.5 7 -13.5 -5.6 8 -8.5 -6.6 9 -22.3 -7.9 10 -30.5 -18.6 11 -26.1 -20.1 12 -30.7 -15. 1 13 -29.6 -16.6 14 -31.0 -16.7 15 -30.4 -17.8 16 -20.7 -14.2 17 -17.6 -8.3 18 -8.9 -5.5 19 -22.0 -3.7 20 -28.3 -22.4 21 -27.4 -18.6 22 -21.9 -12.5 23 -12.2 -5.0 24 -20.5 -9.6 25 -22.7 -13.5 26 -19.5 -11.0 27 -33.0 -17.9 28 -35.7 -21.9 29 -25.9 -13.3 30 -12.8 -2.2 31 -5.6 2.6 Mean Monthly Air Temperature Total Monthly Freezing Degree-Days Totai Accumuiated Freezing Degree-Days Average Historical Accumulated Freezing Degree-Days -42- Average (°C) -9.9 -11.2 -7.3 0.2 -3.2 -8.9 -9.6 -7.6 -15. 1 -24.6 -23.1 -22.9 -23.1 -23.9 -24.1 -17.5 -13.0 -7.2 -12.9 -25.4 -23.0 -17.2 -8.6 -15. 1 -18. 1 -15. 1 -25.5 -28.8 -19.6 -7.5 -1.5 -15.2°C 470.9 1, 045.7 1, 175. 0 M15/31 49 Table 4.23 Susitna River Freezeup 1984 - Slush Ice Porosity Values Location Date 10/19/84 10/26/84 11/03/84 11/14/84 Denali 55 Watana 35 Gold Creek 29 RM 9 37 53 Yentna 53 50 Talkeetna 45 44 Chulitna 51 42 39 RM 60 34 RM 78 38 Curry 42 Near Slough 8 35 Sherman 39 l l ~ [' I_ L L L -43- [- l ~ l~ ~-~ l~ M15/31 50 Table 4.24 Published Porosity Values For Various Materials Material Soils Clay Silt Medium to coarse mixed sand Uniform sand Fine to medium mixed sand Gravel (well-sorted material) Gravel and sand (poorly-sorted material) Sandstone Shale New snow Old snow Firn Glacier ice *Source: Davis and DeWiest, 1966. -44- Porosity (%) 50 -60 45 -55 40-50 35-40 30-40 30-35 30-40 20 -35 10 -20 01 -10 67 -99 35 -78 08 -56 0 - 8 Grain Size (mm) .004 .062 0.5-1.0 0.5 0.25-0.5 4.0 -64.0 0.01 -5.0 0. 5 -3.0' 0.5 - 5 1 -100 •" -- 1 L L L M15/31 51 Table 4.25 Juvenile Anadromous Habitat Study Sites Name Hooligan Side Channel Eagles Nest Side Channel Kroto Slough Head Rolly Creek Mouth Bear Bait Side Channel Last Chance Side Channel Rustic Wilderness Side Channel Caswell Creek -Mouth Island Side. Channel Mainstem West Bank Goose 2 Side Channel Circular Side Channel Sauna Side Channel Sucker Side Channel Beaver Dam Slough Sunset Side Channel Sunrise Side Channel Birch Creek Slough Trapper Creek Side Channel Location (River Mile) 35.2 36.2 36.3 39.0 43.0 45.4 59.5 63.0 63.2 74.4 74.8 75.3 79.8 84.5 86.3 86.9 87.0 88.4 91.6 -45- Observed Ice Effects None Some flooded snow None None None None Overtopped None Flooded snow Some flooded snow Overtopped None None None None None None None None L OCTOBER Time Height Day h m It I 0457 1.0 M 1105 26.8 1704 8.9 2246 26.3 m 0. 3 8.2 2. 7 8.0 2 0551 3.3 1.0 Tu 1229 25.5 7.8 1837 10.9 3.3 3 0013 24.0 7.3 w 0703 4.9 1.5 1401 25.5 7.8 2015 10.0 3.0 4 0142 23.5 7.2 Th 0840 4.8 1.5 1510 26.8 8.2 2125 7.5 2.3 0256 24.5 7.5 0952 3.4 1.0 1602 28.0 8. 5 2218 4.9 1.5 0352 26.2 8.0 Sa 1039 2.0 0.6 1639 28.8 8.8 2303 3.0 0.9 0434 27.7 8.4 Su 1116 1.3 0.4 1710 29.3 8.9 2341 1.8 0.5 8 0514 28.9 8.8 M 1152 1.1 0.3 1735 29.8 9.1 0016 1.2 0.4 Tu 0548 29.6 9.0 1226 1.4 0.4 1759 30.3 9.2 10 0049 0.7 0.2 w 0620 30.0 9.1 1258 2.0 0.6 1825 30.8 .9.4 11 0121 0.2 Th 0654 30.0 1328 2.9 1855 31.0 0.1 9. I 0.9 9.4 12 0153 -0.1 0.0 F 0730 29.6 9.0 1357 3.9 1.2 1922 30.8 9.4 13 0228 -0.2 -0.1 Sa 0803 28.9 8.8 1425 5.1 1.6 1949 30.0 9.1 14 0303 0.1 0.0 Su 0839 27.8 8.5 1455 6.4 2.0 2017 28.9 8.8 Time Day h " 16 0422 Tu 1012 1616 2143 Height ft 1.9 2 5. 2 9. 5 25.6 m 0.6 7. 7 '. 9 7 .B 17 0510 3.0 0.9 w 1118 24.3 7.4 1713 IO.B 3.3 2251 24.1 7.3 1B 060B 3.B 1.2 Th 1247 24.6 7.5 1B30 11.0 3.4 19 0016 24.0 7.3 F 0723 3.7 1.1 140B 26.1 8.0 2011 8.8 2.7 20 0144 25.6 7.8 Sa 0840 2.5 0.8 1509 28.2 8.6 2125 5.4 1.6 21 0259 28.1 8.6 Su 0949 1.0 0.3 1557 30.2 9.2 2228 2 2 0 7 22 0400 30.4 9.3 M 1050 -0.2 -0.1 1640 31.8 9.7 2324 -0.6 -0.2 23 0453 32.0 9.8 Tu 1140 -0.7 -0.2 1719 33.0 10. 1 24 0014 -2.6 -0.8 w 0543 32.7 10.0 1228 -0.6 -0.2 1756 33. 7 10.3 25 0101 -3.9 -1.2 Th 0630 32.8 10.0 1311 0.2 0.1 1833 34.1 10.4 26 014 5 -4.3 -1.3 F 0716 32.4 9.9 1352 1.4 0.4 1910 34.0 10.4 27 0227 -3.8 -1.2 Sa 0803 31.6 9.6 1431 3. I 0.9 1950 33.0 10.1 28 0308 -2.6 -0.8 Su 0850 30.4 9.3 1511 5. I I. 6 2031 31.0 9.4 29 0348 -0.7 -0.2 M 0940 28.8 8.8 1551 7.3 2.2 2116 28.2 8.6 IS 0340 0.8 0.2 30 0428 1.5 0.5 M 0921 26.5 8.1 Tu 1038 27.1 8.3 l53i 7.9 2.4 1638 9.5 2.9 2052 27.4 8.4 2212 25.2 7.7 31 0515 3.6 1.1 w 1143 25.8 7.9 1758 10.9 3.3 2339 23.0 7.0 ' Table 4.26 ANCHORAGE, ALASKA, 1984 Times and Heights of High and Low Waters NOVEMBER Time Day h m 1 0616 Th 1302 1939 Height It 5.3 25.4 9.8 m 1.6 7. 7 3.0 2 0107 22.4 6.8 F 0730 5.8 1.8 1420 26.0 7.9 2048 7.3 2.2 3 0227 23.4 7.1 Sa 0843 5.2 1.6 1513 27.2 8.3 2144 4.6 1.4 0327 25.2 7.7 Su 0944 4.1 1.2 1557 28.2 8.6 2229 2.4 0.7 5 0415 26.8 8.2 M 1031 3.3 1.0 1626 29.0 8.8 2309 0.9 0.3 6 0455 28.0 8.5 Tu 1113 3.0 0.9 1655 29.7 9.1 2348 0.0 o.o 7 0529 28.8 8.8 w 1151 3.3 1.0 1723 30.3 9.2 8 0023 -0~5 -0.2 Th 0604 29.2 8.9 1228 3.9 1.2 1754 30.7 9.4 0056 -0.8 -0.2 0637 29.4 9.0 1301 4.7 1.4 1823 30.8 9.4 10 0132 -1.0 -0.3 Sa 0714 29.2 8.9 1333 5.5 1.7 1851 30.5 9.3 il 0207 Su 0 7 51 1402 1920 -0.9 -0.3 28.7 8.7 6.3 1.9 29.8 9.1 12 0244 -0.5 -0.2 M 0830 27,9 8.5 1437 7.2 2.2 1953 28.7 8. 7 13 0323 0.2 0.1 Tu 0911 26.9 B.2 1516 8.1 2.5 2034 27.3 8.3 14 0404 1.1 0.3 w 0958 26.2 8.0 1606 8.9 2. T 2129 25.8 7.9 Time Day h m 16 0547 F 1206 IBI8 2354 Height ft 2.8 26.1 B. 7 24.7 m 0.9 8.0 2. 7 7. 5 17 0654 3.1 0.9 Sa 1322 27.3 B.3 lg47 6.4 2.0 lB 0117 25.7 7.8 Su OB06 2.7 0.8 1427 2B.9 B.B 2101 3.3 1.0 19 0238 27.5 8.4 M 0912 2.2 0.7 1520 30.6 9.3 2208 0.4 0.1 20 0346 29.3 8.9 Tu 1016 1.9 0.6 1607 31.8 9.7 2306 -2.0 -0.6 21 0444 30.6 9.3 w 1114 1.9 0.6 1650 32.6 9.9 2357 -3.5 -1.1 22 0536 31.2 9.5 Th 1205 2.3 0,7 1729 33.1 10.1 23 0045 -4.2 -1.3 F 0624 31.3 9.5 1251 2.9 0.9 1B07 33.2 10.1 24 0129 -4.0 -1.2 Sa 0708 31.0 9.4 1333 3.8 1.2 IB46 32.7 10.0 25 0210 -3.2 -1.0 Su 0751 30.5 9.3 1413 4.8 1.5 1928 31.6 9.6 26 0249 -1.9 -0.6 M 0834 29.7 9,1 1452 6.1 1.9 2012 29.8 9.1 27 0326 -0.3 -0.1 Tu 0919 28.6 8.7 1532 7.4 2.3 2055 27.5 8.4 28 0401 1.3 0.4 w 1005 27.5 8,4 1614 B.6 2.6 2148 25.1 7.7 29 0443 3.0 0.9 Th 1057 26.4 8,0 1710 9.4 2.9 2251 23.1 7.0 15 0451 2.0 0.6 30 0531 4.5 1.4 Th 1057 25.8 7.9 F 1152 25.B 7.9 iiG5 9.3 2.0 1034 S.i 2.0 2236 24.8 7.6 * Source: NOAA, Tide Tables (1984) Time meridian 150" W. 0000 is midnight. 1200 is noon. 135 * DECEMBER Time Day h m 1 0008 Sa 06 34 1255 1951 Height ft 22. I 5. 7 25.7 7. 2 m 6.7 1.7 7. 8 2.2 2 0128 22.3 6.B Su 0743 6.1 1.9 1356 26.3 8.0 2053 4.8 1.5 3 0253 23.6 7.2 M 0848 5.8 1.8 1451 27.1 B.3 2146 2.6 O.B 4 0353 25.3 7.7 Tu 0944 5.5 1.7 1533 27.9 B.5 2231 0.9 0.3 5 0437 26.6 8.1 w 1034 5.4 1.6 1613 28.6 8.7 2316 -0.2 -0.1 6 0514 27.6 8.4 Th 1120 5.6 1.7 1650 29.2 8.9 2356 -0.9 -0.3 0551 28.2 8.6 1200 5.9 1.8 1724 29.7 9.1 8 0035 -1.3 -0.4 Sa 0626 28,6 8. 7 1236 6.2 1.9 1757 30.0 9.1 9 0113 -1.5 -0.5 Su 0704 28.7 8.7 1312 6.4 2.0 1832 30.0 9.1 10 0151 -1.5 -0.5 M 0741 28.5 8.7 1349 6.5 2.0 1907 29.5 '9.0 II 0231 -1.3 -0.4 Tu 0821 28.1 8.6 1431 6.7 2.0 1946 28.8 8.8 Time Day h m 16 0623 Su 1235 1919 Height ft 2. 5 28.5 3.9 m 0.8 8. 7 1.2 17 0053 25.6 7.8 M 0731 3.5 1.1 1341 29.2 8.9 2033 1.7 0.5 18 0224 26.4 8.0 Tu 0840 4.1 1.2 1443 30.0 9.1 2146 -0.5 -0.2 19 0339 27.8 8.5 w 0949 4.5 1.4 1536 30.7 9.4 2250 -2.2 -0.7 20 0439 29.0 8.8 Th 1054 4.7 1.4 1626 31.1 9.5 2343 -3.4 -1.0 21 0533 29.7 9.1 F 1148 4.7 1.4 1711 31.3 9.5 22 0032 -3.7 -1.1 Sa 0618 29.9 9.1 1236 4.7 1.4 1751 31.4 9.6 23 0116 -3.3 -1.0 Su 0701 29.8 9.1 1320 4.9 1.5 1834 31.1 9.5 24 0155 -2.5 -0.8 M 0740 29.6 9.0 1359 5.2 1.6 1916 30.4 9.3 25 0231 -1.4 -0.4 Tu 0815 29.2 8.9 1439 5.7 1.7 1957 29.2 8.9 26 0303 -0.4 -0.1 w 0852 28.7 8.7 1513 6.1 1.9 2039 27.6 8.4 12 0309 -0.9 -0.3 27 0335 0.7 0.2 W 0900 27.8 8.5 . Th 0929 28.1 8.6 1513 6.8 2.1 1550 6.5 2.0 2029 27.9 8.5 2121 25.9 7.9 13 0351 -0.3 -0.1 Th 0942 27.6 8.4 1601 6.8 2.1 2127 26.9 8.2 14 0435 0.4 0.1 F 1031 27.6 8.4 1657 6.5 2.0 2225 26.1 8.0 28 0412 1.9 0.6 F 1008 27.5 8.4 1633 6.7 2.0 2209 24.3 7.4 29 0451 3.4 1.0 Sa 1054 26.8 8,2 1722 6.7 2.0 2305 22.9 7.0 15 0523 1.4 0.4 30 0539 5.2 1.6 Sa 1128 27.9 8.5 Su 1149 26.2 8.0 l.OU..;J :;)I•U i.•l J.OC.I Ue4 .1.•:7 2333 25.6 7.8 31 0018 22.1 6.7 M 0643 7.0 2.1 1250 25.9 7.9 1946 5.0 1.5 He1ghts are referred to mean lower low water which is the chart datum of soundings. 46 i»l~ ~~ ~ :In -su 62 a u:Ul ~c ~~ n> ~2 L.i lt(J) c~ D <-~2 ~n "'• ~ (/) ~ c:: ~ (/) -'8;) ~ ~ b ~ c._ 20 0 I! -~ lh!l "'-i ~ ~ ~ <! @~ ~ :0 <§?}) Ill (§ r--- l - FIGURE 4. f UPPER SUSITNA RIVER BASI.N AIR TEMPERATURE VARIATION ~ .., 0: ::> .... .. 0: "' G. ::E "' .... 0: :c zo SE_PTEMBER 1984 10 ·10 ·lO-t L 0 10 20 •• DAY NOVEMBER 1184 -•o•,_-------------,oor-------------;,or-------------,,ro------- DAY -TAUillTNA ···-WAUNA -·-· OE.NALI -TALKliTNA ••-• WATANA -··-OINALI 10 .. 0: 0 :::> ~ 0: "' G. ~ .. ,o .... $ .. •10 OCTOBEII 1984 · •.. -TALKIITJIA •···• W.UANA ......... DIHALI -~4-------------,-------------~-------------r-------.. • • DAY 10 DECEMBER 19B4 10 DAY •• .. "" -TALKIUTNA ·--WAUNA ·····-··. DlNALI '' I L L L L L M15/31 57 ·. FtGURE-4.2·.- .. ----. , . Stage: ancfc DTsch.a~ga Data CnJss~ Section, at Ri've.r.-MjJe 40.0 (Oe.shka). Date 09/05/84 09/17/84 09/21/84 10/03/84 10/23/84 10/30/84 Sta~ Ft 6~L€l0 68_4S 69_82 68.25 66.58' 69.55. z IFIQW c.fs. . 25"600' .· 2fl),, 1:0@) 23,.7:00 u~,Jl(()(!) S~,e.<If V'elocity3 Ft/sec 2.9 Temperature oc 3.2 6.6 Ice Covered 1. Elevations based on altfmeten-es.taQ.I:iisHtedi datum on rebar = 75 feet. 2. USGS preliminary estim.ates; ffrrmm. St:llr.T!$1lr.iilil'e gage site. 3. Surface velocity_ · 75- 74- 73- 72- 71 - . -70----69- LLJ (!) 68-<( l-en 67- 66 I I 5000 PREPARED BY: I 10,000 DISCHARGE ( cfs) ~-------------------------~~ 1=1 &M CONSULTANTS, INC. ENQIN •• RB Q&OLOGI8Ta HVOAOl.CGIIiTB 8URV8VDRS I 100,000 PREPARED FOR: [M]£00~& CJ ~00&~©@ SUSI rNA JOINT VENTURE L L L M15/3t 53: Date 09/06/M 09/17/M 09/24/M 10/03/M 10/23/M 10/30/Sfi 11/03/M 11/11/M FJGURE~ 4.~ S.taga-and; IDischiarge Data Cr.as.s: Sedri<:m Ri~er Mile 47.9 Glilelita, lfsiiamd s West) l stage 1Mm.ttu2 Velocity3 1Ft ds Ft/sec t0Jir_9r 2:5,, 6ID(Q) t00..35i !:@),, T!<!JO' 5.2 t00f_44 Zfi»..,.llOO roo_m. r~,.ema 5.2 SiLS.{!)) t~05· S:~ed Top of Ice !fr_a gm_S;t Temperature oc 6.2 0.4 1. IEIIevatrons based on altiinetet; es:t!:all!t4liished datum on reba r = 106 feet. 2. IUJSGS preli:n;ni;r:r.ar.y· e.s.timates: fmmrn S.-umts hi ne gage site. 3 • Stll!trfa.c:er. vel'ccit¥- 106- 105- 104- 103- 102- _101--:::loo- LLJ (.!) 99-<t .... (/) 98- 97 I I 5,000 " / / / I 10,000 " " / / / / / / / / / / / DISCHARGE ( cfs) ~&M CONSULTANTS, INC:. 49' . ' ENOIN •• RS OaDLDCIIBTW HVDRC:tl.DOIBTS .UAVSVDRS I 100,000 PREPARED FOR: [M]&~~& Cl ~~©'@ SUSITNA JOI NT'Xf£f}.f:Tl.JRff I L, l_~ l~ L M15/31 59 Figure 4.4 Stage and Discharge Data Cross Section River Mile 47.9 (Delta Islands East) Stage1 Flow2 Velocity3 Temperature Date Ft cfs Ft/sec oc 09/06/84 105.15 25,600 09/17/84 103.48 20,100 4.5 09/22/84 104. 10 25,200 10/03/84 103.60 18,000 4.8 6.0 10/23/84 102.93 0.6 11/03/84 102.66 11/11/84 103.10 Staging 11/13/84 104.89 Ice Covered 1. Elevations based on altimeter datum established on spike on left bank tree = 115 feet. Rebar on right bank elevation = 108.15 feet. . 2. USGS preliminary estimates from Sunshine gage site. 3. Surface velocity estimates. Inadequate data for stage/discharge curve -50- r , I L_ M15/31 60 Date 09/06/84 09/16/84 09/25/84 10/03/84 10/23/84 11/03/84 11/11/84 FIGURE' 4;..5' Stage and Discharge Data Cross Section River Mile 59.7 (Kashwitna West) Stage 1 Flow2 Velocity3 Ft cfs Ft/sec 147.37 25,600 6.0 146.45 20,700 146.41 19,200 146.13 18,000 5.0 145.46 146.87 Ice Covered 145.88 Temperature oc 0.7 1. Based on altimeter datum established on L. B. alcap elevations here were surveyed off a rebar with computed elevation 153 feet. 2. USGS preliminary estimates from Sunshine gage site. 3. Surface velocity estimates. 154- 153- 152- 151- 150- _149--~ -148- LLJ ~ 147- 1- U) 146- 145 I I s.poo I / / I I I IOPQO I I I I I I I I I / I I I I I DISCHARGE ( cfs) PREPARED BY: ~~~---------------- R&M CONSULTANTS, lr.JC:. £NGINa•Rs 0801.DGI8T8 NVDROL.CWII&TS &URV8VOR8 I 100,000 PREPARED FOR: [}{]£00~& Cl l~~YI~@:@ SUSITNA JOINrXffil>filTfHiE L L L L L M15/31 61 FIGURE 4.6 Stage and Discharge Data Cross Section River Mile 59.7 ( Kashwitna East) Date Stage 1 Ft 2 Flow cfs Velocity3 Ft/sec Temperature oc 09/06/84 09/16/84 09/25/84 10/03/84 10/23/84 11/03/84 146.6 145.75 145.58 145.42 145.17 147.30 145.52 25,600 7.96 20,700 19,200 18,000 5.68 Staged 1. 2. 3. Based on altimeter datum established on alcap = 152 feet. USGS preliminary estimates from Sunshine gage site. Surface velocity estimates. 154- 153- 152- 151 - 150- _149--::: 148- LIJ ~ 147- 1- C/) 146- 145 I I spec I 10,000 I I I I I I I I I I I I I I I I I I DISCHARGE { cfs) I 100,000 PREPARED BY: PREPARED FOR: ~~~----------------- ~&M CONSULTANTS, lrJC. ENGIN •• RB OI!CLCGIIIT. HVDRCLCQUiiT. IIUAVBVDRe 0.7 I l" M15/31 62 .· ... , FIGURE: 4.7· Stage and Discharge Data Cross Section River Mile 76.8 (Montana Creek) Stage1 Flow2 Velocity3 Temperature Date 09/05/84 09/16/84 09/20/84 10/03/84 10/23/84 11/03/84 11/11/84 11/19/84 Ft cfs Ft/ sec °C 234.70 25,600 8.3 233.37 20,700 235.77 31,200 233.42 18,000 8.2 232.69 2.0 229.98 238.31 Staged 0 237 019 Ice Covered 236.66 1. Based on datum established by altimeter on the left bank alcap = 242 feet. 2. 3. USGS preliminary estimates from Sunshine gage site. Surface velocity. 238-. 237- 236- 235- 234- -233--~ -232- LIJ ~ 231-.... C/) 230- 229 I I 5POO / / / / I 10,000 / / / / / / / / DISCHARGE ( cfs) PREPARED BY: ~-----------------~~ ~&M CONSULTANTS, lrJC. 53• IZNQtNaaRS D&OL.DOISTa HVICIROLCOIIiiTS .URV8VDR8 I 100,000 PREPARED FOR:: [}{]£[R1~£.m@1~~©@ SUSITNA JOffl.JTr'V.:Ef!.Jlf.UR£ r , L_ M15/31 63 F'IGURE: 4-..-~: Stage and Discharge Data Cross Section River Mile 84.6 Date 06/14/84 07/28/84 08/15/84 08/27/84 09/05/84 09/16/84 09/20/84 10/03/84 Stage1 Ft 266.60 267.40 264.88 267.80 263.20 261.70 263.90 261.58 Flow2 cfs 69,900 80,300 46,000 81,600 25,700 20,700 31,200 18,000 Velocity .. Temperature Ft/sec °C 1. Water surface elevation referenced to project datum. 2. USGS preliminary estimates from Sunshine gage site. 270 269 / / 268 / 267 266 _265 ---264 L&J (!) 263 <t 1-rn 262 5,000 10,000 100,000 D IS CHARGE ( c fs ) PREPARED FOR; [}{]£m1~& 0 ~liD&~©@ R&M CONSULTANTS, INC. SUSITNA JOINT VENTURE ENOJNa.R& DBOL.CGISTa HVDR0LOGI8TS .URV&VCR& I '-~ M15/3] 04 ,.. ,..._, Date ,,.. -- 06/14/841 07/28184 08/15/M 08/27/M 09/05/M 09/16/84 09/18/M 10/03/M 1 1/19/M .. _ .. · FIGURE· 4;9·; . / . stage< andi Discharge Data Cross. Section. River Mile 86.3 S:t t .age: Ft. ZZ5· .. 7ll zys_ar 2T4Uil: Zl(L08i ZIZ-ffl 212_23; 21TJJO! zz:t_GS: 21:1..66; 69?,.9.@0 8Qi,,3'00 4:&,,000 81;,.600 25:,.700 2fr,700 20,.100 tS',.OOO Velocity . Temperature Ft/sec °C 1. Waite:~ s1:uface elevatiorT! rrefer-er.r.e:ed to project datum. 2. UISG.~.preHmina:ry: es:timates..fr-om Sunshine gage site. 280 279 278 277 276 _275 ---274 LLJ ~ 273 l-en 5,000 10,000 DISCHARGE ( cfs) R&M CONSULTANTS, INC. 55 ENGIN •• RS DeDL.DDI•T• HVDRDL.DQI8TS aUAVBVDR. / / / 100,000 PREPARED FOR: [}{]£00~& 0 ~[ID£®©@ SUSITNA JOINT VENTURE I l .. - c • I I l_. M15/31 65 Date 06/14/84 07/28/84 08/15/84 08/27/84 09/05/84 09/16/84 10/03/84 Stage and Discharge Data Cross Section River Mile 87.8 Stage 1 Flow2 Velocity Ft cfs Ft/sec 282.40 69,900 283.50 80,300 280.60 46,000 282.82 81,600 279.20 25,700 277.50 20,700 276.33 18,000 1. Water surface elevation referenced to project datum. 2. USGS preliminary estimates from Sunshine gage site. -27 L&J ~277 t-en 5,0CXJ 10,000 DISCHARGE ( cfs) . Temperature / / oc 100,000 PREPARED FOR: I=I&M CONSULTANTS, INC. SUSITNA JOINT VENTURE ENOIN •• RB Q&OL.OGISTB HVDROLCGUiiTS BURVSVORa M15/31 66 Date 06/14/84 08/27/84 09/05/84 09/15/84 09/16/84 10/03/84 11/19/84 ·FIGURE: 4~11· Stage and Discharge Data Cross Section River Mile 90.0 Stage 1 . 2 ·Flow Velocity Ft cfs Ft/sec 294.93 69,900 296.60 81,600 294.60 25,700 293.70 22,200 293.70 20,700 293.27 18,000 292.80 1. Water surface elevation referenced to project datum. 2. USGS preliminary estimates from Sunshine gage site. 299- 298- 297- 296- 295- _294----293- LLI (!) <( 292-.... UJ 291- ------ . Temperature oc 290 I I I I I 5000 10,000 I I I I I I I I JOO,OOO DISCHARGE ( cfs) PREPARED BY: PREPARED FOR: ~~--------------------[}{]£00~& c:J ~riD&®©@ 57' SUSITNA JOINT VENTURE 1=1 &M CONSULTANTS, INC. ENDIN •• AS OBCL.DGIBTW HVDRCL.CQIBTS aUAVBVDA8 I, I l~. M15/31 67 Date 06/14/84 07/28/84 08/15/84 09/05/84 09/13/84 09/16/84 10/03/84 11/19/84 Stage and Discharge Data Cross Section River Mile 91.7 Stage 1 Flow2 Velocity Ft cfs Ft/sec 303.10 69,900 304.12 80,300 302.76 46,000 302.22 25,700 301.40 22,600 301.34 20,700 300.97 18,000 301.41 1. Water surface elevation referenced to project datum. 2. USGS preliminary estimates from Sunshine gage site. 309- 308- 307- 306- 305- _304----303- I.&J ~ 302- 1-en 301- Temperature oc ...... .... 300~-.---~ro-.------------~-------.----,----.-,---.. -,-,--------S,OOO 1 I I :o,OOO I I I 1 1 1 1 1 :oO,OOO DISCHARGE ( cfs) PREPARED BY: PREPARED FOR: ~-------------------------~~ [}{]£00~& c ~00&®©@ 58· SUSITNA JOINT VENTURE R&M CONSULTANTS, INC. ENGINa.RS O&OL.OGI&T. HVCROL.OGI1i1T8 •URVBVOR. L _ __, r, I L ~ r , L~ l~ L l M15/31 68 Date 06/14/84 07/28/84 08/15/84 •. 09/05/84 09/11/84 09/16/84 10/03/84 11/19/84 FIGURE:.4.13·· .. ·-·· -- Stage and Di:scftarge Data Cras:s.; Section Rrver Mile 93.3 t Stage. Ft. ar3_oo~ :Il::L96i :rtl_SI am~s& :ltCL20J 309•-gg: 300·-4t 3f}8,._tz. 6$,.90® 8Ql,,3'00 46>, .. 000 25,.'l00 23',.600 20',.70€1 Ta, .. ooo Velocity Temperature Ft/sec °C 1. Water s-ttrface: etevatiun: referer.t:<l:.li!d' to project datum. 2. USGS hlt"eHminary estimate$ from Sunshine gage site. -31 306~~-.-.-.-.--------.-----~--.-~.-.-.-.-ro------ 5,000 10,000 100,000 DISCHARGE { cfs) PREPARED FOR: [}{]Li\00~& 0 ~liD&®©@ 59 SUSITNA JOINT VENTURE ~&M CONSULTANTS, INC. ENGIN •• RS DI!OLOGIBTa MVCROL.CDIBT8 8URVaYOA. l- r- l" r. L- [ ~ r - l ~ l' r- l ~ r - l" [ l ~ L L L M15/31 69 Date 09/16/84 09/26/84 10/03/84 FIGURe: 4.14;· Stage and Discharge Data Cross Section River Mile 95.9 LRX-0.7 Stage1 Flow2 Velocity Ft cfs Ft!sec 323.69 20,700 323.18 18,500 322.81 18,000 1. 2. Water surface elevation referenced to project datum. USGS preliminary estimates from Sunshine gage site. Inadequate data for stage/discharge curve Temperature oc L L [ L L L L L L L M15/31 70 Date 09/11/84 09/16/84 09/26/84 10/03/84 FIGURE: 4.15: / Stage and Discharge Data Cross Section River Mile 97.1 LRX -1.0 Stage 1 Flow2 Velocity Ft cfs Ft/sec 333.22 9,300 332.89 8,200 332.50 7,650 332.30 7,700 1. 2. Water surface elevation referenced to project datum. USGS preliminary estimates from Gold Creek gage site. Inadequate data for stage/discharge curve Temperature oc L . ! - ' L- I L • l ~ [ ~ L l~ l~ Ml5/31 71 Date 09/11/84 09/16/84 09/27/84 10/03/84 FIGUR'E· 4.18· Stage and Discharge Data Cross Section River Mile 98.0 LRX -2.0 Stage 1 Flow2 Velocity Ft cfs Ft/sec 339.00 9,300 338.40 8,200 337.00 7,400 337.26 7,700 1. Water surface elevation referenced to project datum. 2. USGS preliminary estimates from Gold Creek gage site. Inadequate data for stage/discharge curve 82· Temperature oc -i 60 YENTNA RIVER 0 5 ;!. 40 ~ ~:M9 en 0 0:: 0 a.. 30 20 -i SUSITNA RIVER FREEZEUP 1984 SLUSH ICE POROSITY VALUES vs. TRAVEL TIME DENALI 0 CHULITNA RIVER 0 TALKEETNA RIVER 10)0~---------------~~---------------.----------------~---------lbo zJo 3bo SUSITNA RIVER MILE PREPARED BY; PREPARED FOR: --·~---------------------------- (}:{]£00~& Cl @:00&®©@ SUSITNA JOINT VENTURE R&M CONSULTAf\ITS, INC. BNCiUNI!IlRB GBCLDGIBT8 HYDRDLQGIBTS eUAYII.YDRB :--] 3tJnlN3/\ lNIOr \iNliSnS •ttOABI\tln8 B.l.BIDO-,:QtiCAH •.&.BID0"1DBD 9tf •• NIDN3 @@@W@~ c W~lliJW[}:{J •B a.·v ·3Hne>l:l : ~0.:1 03~\1d3~d gJ---~--~--L---L---~--L-~~~---J--~----2 "''E :t> ::::0 -f (") r fTI en N f'TI:--3 3 - 0 p 0 en or zCI'I1 o:::ol> ~<en <m-t 0 I l>:::!!en ;:!-ID --c rl> 1'11:::0 enm en en I~D en 0 :::0 -1 1'11 0 en 1'11 0 3: 1'11 z -1 en "'0 8 :::0 ~ ~ 0 :::0 -1 1'11 0 en 1'11 0 3: 1'11 ~ en z 0 :E ~ I I :J l" r: l" I I_" f -, I L" l 1/9 1 5.0 CHRONOLOGY OF 1985 BREAKUP A breakup drive occurred on May 24, 1985 marking one of the latest breakup dates on record (Table 5.1). A deep snowpack and cool weather during April and early May inhibited snowmelt and ice deterioration until mid-May. Ice conditions were observed twice weekly from April 24 until May 24. During previous years of observation, by the end of April, warm weather has melted most of the snow in the middle al)d lower Susitna basin, increasing river flow and exposing ice to solar radiation. By May 15 the lower river ice has melted and a breakup drive, initiated by the release of upper river ice jams, removes remaining ice from the middle river. The ice cover on April 24, 1985 was little different from the conditions observed on March 4, with the exception of a thicker snow pack in March. Open leads remained in reaches where no ice cover developed. Snow surveys indicated little snow melt in the upper Susitna basin but the snowpack had consolidated noticably. Cold weather throughout the basin during April maintained the existing snowpack, with many areas receiving additional snow during the first week of May. On May 7, the lower river showed significant melting of the snow pack, evident by pooled water and saturated snow in ice cover depressions. The reach between the Parks Highway Bridge at Sunshine and Montana Creek, overall the steepest segment on the lower river, showed ice cover erosion and rapid lead development. Two days later the reach had a continuous open lead down to RM 78 where an ice jam had developed from ice debris accumulating against a solid ice sheet. The lead perimeter was rapidly eroding, adding ice floes to the jam. A jam had also formed at RM 86, from ice released by jams on the Chulitna and Talkeetna Rivers. The Susitna below the Yentna confluence was ice free. -65- L 1/9 2 On May 16, the lower river was open with ice remarn1ng only in some side channels and snow ice along the main channel margin. The middle river had some areas of continuous ice cover, with the most extensive reach located between RM 107 and 109. Open leads separated by short sections of ice cover or ice jams characterized the middle river. With the exception of the ice sheet near RM 107, the entire middle river ice cover was destroyed by May 20. Ice debris had accumulated as jams at the following locations (river miles): 148 145 144 139 135 131 126.5 122 120.5 119 113 These jams continued building as more floes broke from shore fast ice and collected against the jam key. The jam at RM 126.5 created enough backwater to overtop the berm and flood Slough 8A on May 23. On Friday, May 24, at about 7:00a.m., the final removal of ice or break- up drive began, and approximately 8 hours later the Susitna River above Talkeetna was open. An ice jam near the confluence of Devil Creek, holding back essentially all the breakup ice debris from the upper river, failed and released over 2 miles of accumulated slush and ice floes. The large floes were broken up through Devil Canyon Rapids, emerging well rounded instead of angular and generally no larger than 3 feet in diame- ter. These fragments were part of a continuous flow of slush. The primarily effect of this tremendous accumulation was to create a surge or rapid increase in water level due to the displacement of water by ice. This surge knocked loose the ice jams from RM 148 down to RM 126.5 and flooded practically all the sloughs and side channels. Sloughs 22, 21, 16 and the lower portion of 11 were flooded, as well as 9 and 8A. The water rose to within 1 foot of overtopping the entrance berm to Slough 11. This berm generally does not overtop at river flows less than 42,000 cfs. The -66- r I L~ 1/9 3 ice debris was held temporarily by the jam at RM 126. 5, creating a backwater which rapidly rose, sending enough water into Slough 8A so that ice floes and debris were swept through the slough. This channel was quickly clogged with ice. The estimated flow through Slough 8A was 200-300 cfs. By 11 :30 a.m. the jam at RM 126.5 broke loose and the ice did not stop until reaching the intact ice cover at RM 109. This cover had deteriorated so that the surge wave instantly broke it loose. The ice debris from upstream, however, jammed at RM 109 for about 1 hour. This caused the most severe flooding observed during the breakup. Several islands were submerged to the base of mature cottonwood trees. Ice floes and debris were forced laterally out of the channel and into the surrounding vegetation, often 20-40 feet from the mainstem. Much of this ice was weakened and candled so that little damage occurred. The railroad bed between RM 110 and 108 was not damaged this year, but ice came within 3-4 feet of the tracks. A north bound train was delayed for about 1 hour while the jam at RM 109 held, jeopardizing the tracks with flooding. When this jam broke at about 2:30 p.m. the ice debris flowed out of the middle river and continued unobstructed to Cook Inlet. A shear wall measuring about 10 feet high remained at the final jam site. The 1985 breakup, although one of the latest on record, did little damage to vegetation, and no significant morphological changes were noted. It is possible that some habitat areas such as Slough 8A were seriously affected by flooding and ice scour. Much of the ice melted prior to the breakup drive. The ice, weakened by solar radiation, also lacked cohesiveness and rigidity and, therefore, generally little damage was incurred compared to oreviou~ VP;::!r<: _ I . -- ---· -I ---• - - -67- 1/9 4 TABLE 5.1 SUSITNA RIVER HISTORICAL BREAKUP DATES 1975 May 15 1976 May 17 1977 May 16 1978 May 9 1979 May 8 1980 May 13 1981 May 8-9 1982 May 15 1983 May 10 1984 May 8 1985 May 24 I r, l~ r, l_ l~ -68- REFERENCES I l j j M15/31 74 6.0 REFERENCES Davis, Stanley N. and Roger J. M. DeWiest, 1966. Hydrogeology, John Wiley & Sons, Inc. New York. 463 pp. R&M Consultants, Inc. 1981. Ice Observations 1980-81. Anchorage, Alaska. Alaska Power Authority. Susitna Hydroelectric Project. Report for Acres American, Inc. 1 Vol. 1982. Ice Observations 1981-82. Anchorage, Alaska. Alaska Power Authority. Susitna. Hydroelectric Project. Report for Acres American, Inc. 8 Vol. 1983. Susitna River Ice Study 1982-1983. Anchorage, Alaska. Alaska Power Authority. Susitna Hydroelectric Project. Report for Harza-Ebasco Susitna Joint Venture. 1 Vol. 1984 a. Susitna River Ice Study 1983-1984. Anchorage, Alaska. Alaska Power Authority. Susitna Hydroelectric Project. Report for Harza-Ebasco Susitna Joint Venture. 1 Vol. 1984 b. Processed Climatic Data, October 1983 to September 1984. Anchorage, Alaska. Alaska Power Authority. Susitna Hydroelectric Project. Report for Harza-Ebasco Susitna Joint Venture. 6 Vol. 1984 c. Lower Susitna Aggradation Study: Field Data November 1984. Anchorage, Alaska. Alaska Power Authority. Susitna Harza-Ebasco Susitna Joint Hydroelectric Project. Report for Venture. 1 Vol. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Predictions For Ocean Service. 1983. Tide Tables 1984, High and Low Water West Coast of North and South America. National U.S. Geological Survey, 1984. Water resources Data, Water Year 1983. Anchorage, Alaska. Water Resources Division, U.S. Geological Survey. United States Department of the Interior. -69- APPENDICES MlS/31 75 L, APPENDIX A Monthly Meteorological Summaries From Weather Stations at Denali, Watana, and Talkeetna River Ice Observations and Weather Data From Gold Creek .JNTHLY SUMMARY FOR DENALI WEATHER STATION )ATA Tr.-li<EN :OLJR·H~G Se::P.:t:eMber. 19!34 RES. RE"S. AVG. MAX. HAX. HIN. MEAN tmiD WIHD WIND GUST DAY TEMP. iE~P. TEMP. DIR. SPD. SPD. D!R. DEC C DEG C uEG C uEG M/S M/S DEG 12. n 2 11.9 . 3 10.13 4 11.9 5 1V3 b 10 .B 7 11.5 8 13.7 9 14.·7 10 13.0 11 13.1 12 10.8 13 8.4 14 13.5. 15 10.6 lb 12.2 17 10.5 18 B.B 19 5.7 20 &.0 21 9.5 22 11 '1 23 11.2 24 9.7 25 8.7 26 8.7 27 10.4 28 9.3 29 1i .5 3Q 9.7 MONTH 14.7 -3,1 -.1 -2.3 1.7 1.3 3.3 3.5 .5 -1.'2 -1.6 -.5 -1.b 2.3 -.4 1.5 -.5 3.5 l.b -1.1 -5._fi -3.1 -1.4 .9 .9 1.5 -2.7 -2.9 2. i 3.0 -5.0 c:tJt1T 4.5 5.9 4.3 &.B 7' l 7.1 7.5 7.1 1),8 5.7 &.3 4.6 5.~ &.6 6.1 5.9 7.0 5.2 3.1 2.5 '2.3 ~.6 4,9 5.3 4.8 3.9 3.2 6.fl ' d !;\,. 5.~ *** *** *** l!-l!* *** *** *** H·ll *** *** *** *** *** *** *** :H* 167 158 *** *** *** H·l! *** *** *** *** *** *** H·lf *** 166 **** **** **** ***'~ **** **** **** **** :H** **** **** **** **** **** **** 1.1 .a **** **** **** l!·li** **** **** **** **** **** **** **** **** 1.0 !HU **** **** **** **** ·l!l!U **** **** **** **** **** **** **** **** **** **** 1..2 .9 **** **** U·ltl! !!*** **** **** **** ·Hl!-ll **** **** **** **** 1.2 (';'T M(~X I C~tJ~3T *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 174 112 *** *** *** *** *** *** *** *** *** *** *** -~** 174 M ·r 1\JI :<::: tl.\ , ..... ,• ... r ~AX. GUST P'VAL MEAN MEAN SPD. DIR. RH DP PRfCIP M/S % DEG C MH **** *** **** *** **** *** **** *** **** *** ***'* *** **** *** **** *** **** *** **** *** **** *** **** *** **** *** **** *** **** *** **** *** 7.0 s 1.9 s **** *** **** *** **** *** **** *** **** *** **** *** **** *** **** *·H ·:tl!H *** **** **•:f **** *** ·HU l!H 7.0 s 42 45 45 58 67 54 56 59 56 49 44 50 47 45 45 62 b4 67 68 56 54 61 49 65 34 40 66 63 51 58 54 -9.0 -8.3 -9.0 -4.3 -' 1 -4.& -4.6 -3.0 -7.0 -7.6 -8.7 -9.3 -&.1 -8.9 -3.5 -.6 -2.3 -5.2 -8.6 -9.7 -6,2 -8.1 -2.6 -13.1 -10 '9 -5.0 -5.5 -4.8 -3.6 -6.1 n.o 0.0 0.0 0.0 o.o 1.4 .4 0.0 0.0 o.o ') •'- 1.0 0.0 0. 0 2,4 0.0 7.2 4.6 14.2 7.2 0.0 0.0 o.o 0.0 'J •'- 0' 0 0.0 .4 5.2 0. 0 44.4 ~::: "'? ·.J ' .~ GUST V~L. AT MAX. GUST MINUS 1 INTERVAL 6.3 GUST ~tL. AT MAX. GUST PLUS 1 INTERVAL 7.0 GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 6.3 DAY'S SOLAR EtlERGY DAY WH/SQH ****** ****** 2- ****** 3 ****** 4 ****** 5 ****** b ****** 7 >.':·l!H** 8 lFH*** 9 ·)!l!H·H! 10 HH·U 11 ****** 12 ****** 13 ****** 14 ****** 15 ****** 16 ****** 17 ****** 18 ****** 19 ****** 20 ****** 21 *H·l!H 22 ****** 23 f.-l!HH 24 -~·lf\H:H 25 1!-l!HH 2& HUl!l! 27 *·lll!IH 28 ****** 29 :o!·l!**** 30 'ki'HH·)f lTE: REL.ATIVF HUMIDITY READINGS ARE UNREL.IABLE WHEN WIND SPEE:OS ARE LESS THAN ONE M~TER PER SECOND. SUCH REA:OtNGS HAVE NOT BEEN INCLUDED IN THE DAILY OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DFW POINT. NTHL.Y HUI"ii'ir~RY FOR DENr~L.I IJ.JEATHER S'frqTJON .. TA TAKEN DURING Octobf.H"' .' "1984 r , i. I l- r. i l- I L~ ... : 1 2 3 4 & 7 8 9 iO · 11 12 13 14 15 1& 17 18 19 20 21 22 23 24 25 2& 27 29 29 36 31 MONTH RES. AIJG. MAX. MAX. MEAH lHMli GUST P'VAL MF.AN MEAN MAX. TEMP. DtG C HIN. TEMP. DtG C TEMP. DIR. DEG C DF.G RES. IHMD SPD. MiS WIMD GUST SPD. DIR. M/5 . DEG SPD. DIR. RH DP PRECIP 1'1/S % DtG C MH 9.9 7.7 7.0 6.7 &.1 . 8.4 5.5 7.5 2.9 3,1 2.3 1.7 2.1 -2.7 -1.& .3 -1.2 1.9 -1.9 -4.3 ***** ***** ***** ***** ***** ***** ***** ***** l!Hl!lt ***** *"*** 9.9 ?..& 1.2 -3.5 -6.7 -3.8 -1.5 -2.2 -1.0 -4.0 -7:9 -8.4 -1.1 -5.1 -&.7 -10.1 -9.9 -15.5 -14.9 -11.1 -11.3 ***** ***** ***** ***** HH·:t ***** ***** ***** ****~ ***** ***** -15.5 6.3 4.5 1.8 0.0 1.2 3.5 1.7 3.3 -.6 -2.4 -3.1 .3 -1.5 -4.7 -~.9 -4-.B -B.4 -6.5 -b.~ -7.8 ***** ***** HH·:t ***** ***** ***** ***** ***** ***** ·t.*'IBB! ***** -1.5 I-11~'T IIL"t \:J'.,}~;;;.t I V L.l ... , *** *** *** *** 182 178 347 134 353 350 177 902 013 353 359 066 348 026 010 . 358 *** *** *** *** *** *** *** *** *** *** *** 1!07 **** **** **** **** 2.2 2.5 2,0 2.G 1.0 1.3 .9 .9 2.9 3.6 1.7 .2 1.0 • 4 l.ii 1.6 **** ·~*** **** **** liH* '~*** **** **** **** **** **** .7 .'\.7 !lwoC 1\ .. V 1 .. 1 I 1"11'1/\, ·****-*** **** *** **** *** **** *** 2.5 17i 3.3 131 . 2.4 340 3.6 139 1. 7 35b 1.7 342 1.7 172 2.7 351 3. 0 350 .2 349 2.0 356 2.1 357 1.7 343 1. 7 143 ?..2 143 1.7 010 **** *** **** *** **** *** **** *** **** *** ·l!iill ·Hi **** *** **** *** **** *** Hi* *** **** *** 2.4 139 **** *** **** *** **** *** **** *** 9.5 5 12.7 5 7.0 HNW 14.6 SE 5.7 N 3.2 ~mw 10.2 s 7.6 N 7.0 NNE 8.3 N 7.0 N 5.7 s 5.7 NNW 6.3 NNW 8.9 NNE 5.1 N **** *** **** *** **** *** **** *** **** *** **** *** H·H !tilt **** *** **** *** **** *** **** *** 14.6 N ** ** ** ** 56 00 75 76 88 81 81 76 67 66 73 67 66 61 61 76 ** ** ** ** B ** ** ** ** ** ** 71 ***** ***** ***** ***** -5.3 -4.0 -2.4 -.7 -i. 9 -5.9 -4.4 -3.7 -6.8 -iO .2 -9.0 -9.3 -13.2 -13.0 -11.5 -12.2 ***** ***** ***** ***** ***** ***** ***** ***** l!U·:tl! ***** ***** -7.1 GU!:>T V:·:.l ... t1T hAX. GU!:>T MINUS "1 nrn:.RtiAL GUST t)E"i. .. t'T l·'i{,X, CUST Pl..U~3 1 INTER 1)AI... GUST VEL. AT hAX. GUST PLUS 2 INTERVALS **** **** **** **** **** **** **** **** **** **** **** **** **** llllll-lt **** **** HH **** **** **** **** **** H*ll **** Hil! **** **** **** **** ·HH **** 'H'H ".l ".t. 4 ".t4.0 L?.. l DAY'S SOI.AR ENERGY DAY WH/SQI! ****** 1 Hi-l!llf 2 ****** 3 ****** 4 ****** 5 ****** 6 ****** 7 ****** 8 ****** 9 ****** 10 ****** 11 ****** 12 ****** 13 ****** 14 ****** 15 ****** 16 ·:tit*·Hf 17 ****** 18 fHll** 19 ****** 20 ****** 21 ****** 22 HH·H 23 ****** 24 ****** 25 nun 26 ****** 27 ****** 28 **·H·~* 29 ****** 30 ·~***** 31 •)!***** RELATIVE HUMIDITY READINGS ARE UNRELIABL.E WHEN WIND SPEEDS ARE LESS THAN ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAII_Y OR r·i()NTHi .. Y MEr~N FClr< REI..r~TJ 1,)E HUMJDITY i~•ND DEl,.J POINT, :1: N c~ . ~::; I .. J ~::; :t: T i"-.J. A 1··1 Y X) 1:.2: D 1::: 1... 1::: C T t=~ :1: C~ P 1:.2: D .. T 1::: C T ~ 'iONTHLY SUM~1Ar~y FOR DENALI J,.JEATHEI~ STATION .. DATA TAl< EN DUfHNG NoveMber .• 1984 .;... RES. RES. AVG. MAX. MAX. DAY'S MAX. HIN. HEAN WIND WIND WIND GUST GUST P'VAL HEAN MEAN SOLAR DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEG C DEG lt/S H/S DEG MIS % DEG C MH WH/SQH ----------------------------------------------------------------------------------------------------- t ***** Iff*** ***** *** **** **** *** **** l!·lfl! ** ***** **** ****** 2 -10.1 -15.1 -12.6 127 .2 .1 196 2.5 ENE 65 -16.8 **** ****** 2 3 -7.6 -18.5 -13.1 316 .4 1.4 359 3.8 NNW 65 -18.2 **** ****** . 3 4 -9.2 -14.3 -11.8 139 .8 1.4 152 6.3 SE 68 -16.2 **** ****** 4 5 -3.1 -13.0 -a. t 190 2.1 2.6 187 9.5 s 76 -10.6 **** ****** s 6 -1.5 -7.8 -4.7 131 .3 1.1 207 5.1 SSE 81 -7.6 **** ****** 6 7 -3.6 -8.3 -6.0 011 .4 1.1 183 3.2 NNW 36 -7.3 **** ****** 1 s -7.5 -8.7 -B.t 343 .5 1.8 000 6.3 N 85 -10.2 **** ****** B 9 -8.5 -13.9 -11.2 147 .3 .9 178 3.3 s 83 -12.3 **** ****** 9 10 -11.8 -21.4 -16.6 009 1.3 1.4 024 4.4 NNE 78 -17.5 **** ·l!l!fl!H tO 11 -16.8 -28.4 -22.6 009 .5 .a 343 3.2 NNW 73 -27.9 ***' U·lflll!* 11 12 -19.4 -28.7 -24. t 345 1.9 2.1 348 5.7 NNW 71 -28.6 l!Hl! ****** 12 13 -17.1 -32.3 -24.7 002 .3 1.0 000 4.4 N 69 -31.7 **** ****** 13 14 -16.1 -29.4 -22.8 089 1.1 2.3 161 8.3 N 70 -25.8 **** -ll***** 14 15 -9.8 -17.4 -13.6 174 ., 1.7 169 7.6 ssw 75 -16.9 **** ****** 15 'I 16 -9.3 -18.6 -14.0 017 .9 1.3 145 5.7 N 81 -16.0 **** ****** 16 17 -14.6 -19.4 -17.0 ooe .7 .9 028 3.8 N 79 -19.9 **** ****** 17 18 -10.1 -21.1 -15.6 062 .4 1.2 175 7.0 NNE at -16.9 **** ****** 18 19 -14.4 -23.8 -19.1 156 .a 1.7 164 12.7 N 78 -21.3 Ulff ****** 19 20 3.3 -15.9 -6.3 156 5.4 7.3 141 26.7 s 71 -16.6 **** ****** 20 21 3.1 -5.8 -1.4 134 6.4 6.5 129 23.5 SE 80 -3.8 **** ****** 21 22 -5.3 -13.3 -9.3 357 2.2 ') ') ..... 013 4.4 N 84 -10.7 **** ****** 22 23 ***** ***** ***** *** **** **** *** **** *** ** ***** **** ****** 23 24 -8.9 -15.4 -12.2 654 .4 1.1 162 6.3 N 81 -13.7 **** ****** 24 25 -14.0 -21.0 -17.5 194 .2 .7 189 2.5 ssw 80 -18.3 **** ****** 25 26 -19.4 -24.4 -21.9 040 .3 .6 017 2.5 NNE .76 -25.5 ·l!Uf ****** 26 21 -18.7 -28.7 -23.7 063 .2 .7 019 2.5 ~lNE 76 -24.9 **** *****' 27 28 -20.2 -25.2 -22.7 015 .7 .8 022 2.5 Nt~E 82 -23.7 **** 175 28 29 -15.4 -21.1 -18.3 024 1.3 1.4 022 3.8 NNE 86 -19 .o **** 215 29 30 -12.0 -15.4 -13.7 032 .8 1.5 186 5.7 NNE 89 -15.2 **** 140 30 MONTH 3.3 -32.3 -14.7 103 .3 1.7 141 26.7 N 78 -17.4 **** 530 GUBT VEL. AT MAX. GUf.iT MINUS 2 INTEI~V.~I...S 'J. (j> • 0 1""-1 ,, ..... ,. ........ A"r 'lt..l A. .... .l ,...,. .. ," . .,. .. I "r ... II I'"" 1 J:NTERVt:lL 24.0 \.7Uul vt:~L.., HI I'JH.i\ I \.?U;:) I n J.r~uo GUBT 'JEL. AT MAX. GU~H PL.Un 1 INTEl~ VAL 19. '? GUST VEL. AT MAX. GUST PLUS 2 INTERVt~LS -:.)1::' "t c.;,:. • .,,.) I ,o£T [NOTE: R El..AT I ',)E HUMIDITY I~ EAD I NG~:; ARE UNI~EI...IABI...E l,JHEN kl I ND ~3P EE:O!:l AI~F L.E!3!:> TH.~N ONE METE!~ PER SECOND. !3UCH f~EADINGB ! .. lAVE NOT BEEN I NCL.UIH:::o IN THE DAJ:I...Y OR MONTI··ILY rlEAN FCll~ RELATIVE HUMIDITY AND DE~J POINT. r- IL_~ r- ' L- I~ .~ M C C) N ~::: l.J L. ·y-~. N T B ,. :s: i'~ c:; • B l.J ~::: :a: T i'~ A 1··1 Y 1) I~ C) 1::: L. 1::: C T F~ :1: C P I~ C) .:r t::: c:; ·r 10NTHLY SUMMARY FOI~ DENALI I..JEATHER STATION JATA TAKEN DURING DecE~Mber •• 1984 RES. RES. AVC. MAX. MAX. DAY'S MAX. MIN. MEAN WIND WIND WIND GUST GUST pI VAL MEAN MEAH SOLAR DAY TEMP. TEMP. TEMP. DiR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEC C DEC C DEC C DEG HIS 11/S DEG H/S % DEG C 1111 WH/SQM ------------------------------------------------------------------------------------------------------6.9 -12.9 -9.9 189 5.0 s.o 189 8.9 s 86 -10.8 **** 245 2 -7.8 -14.6 -11.2 180 1.2 2.4 193 8.9 s as -13.0 Ufl! 135 2 3 -3.7 -10.9 -7.3 203 2.3 2.8 196 8.9 ssw 88 -8.0 **** 138 3 4 5.1 -4.8 .2 176 4.8 5.6 226 25.4 s 78 -3.3 **** 65 4 5 .9 -7.3 -3.2 166 4.3 5.1 152 15.9 SSE 86 -3.7 **** 115 5 6 -5.5 -12.2 -8.9 354 2.5 2.6 347 7.0 N 85 -11.5 **** 310 6 7 -5.6 -13.5 -9.6 090 .3 2.1 193 8.9 NNE 89 -to .2 **** 135 7 8 -6.6 -a.s -7.6 015 2.1 3.4 348 8.9 NNE 87 -9.3 **** 85 8 9 -7.9 -22.3 -15.1 024 5.3 5.5 010 12.7 NNE 62 -17.6 **** lOS 9 10 -18.6 -30.5 -24.6 171 .B 1.9 175 8.9 N 7b -26.3 **** 115 10 11 -20.1 -26.1 -23.1 003 1.2 1.5 002 3.8 N 76 -26.8 ***' 185 11 12 -15.1 -30.7 -22.9 032 1.7 2.2 047 6.3 NE 66 -26.4 **** 145 12 13 -16.6 -29.6 -23.1 005 1.6 1.7 032 6.3 N 73 -26.5 ***' 111 13 14 -16.7 -31.0 -23.9 013 2.3 3.1 029 7.6 NNE 61 -29.0 **** 80 14 15 -17.8 •30.4 -24.1 895 .5 1.6 152 7.0 NNE 75 -24.2 ***' 95 15 16 -14.2 -20.7 -17.5 075 ., ... 1.3 175 6.3 s 81 -19.2 **** 135 16 17 -8.3 -17.6 -13.0 196 .4 1.2 161 4.4 s 87 -15. t ***' 101 17 18 -5.5 -8.9 -7.2 *** **** lflflff .l!f* **** *** 96 -7.9 **** 45 18 19 -3.7 -22.0 -12.9 017 4.9 5.1 016 11.4 NNE 53 -t~. 9 **** 115 19 20 -22.4 -28.3 -25.4 002 .7 1.4 358 4.4 N 60 -30.7 ***·~ 55 20 21 -18.6 -27.4 -23.0 175 ., ... 1.2 339 5.7 s 73 -25.1 **** 40 21 22 -12.5 -21.9 -17.2 183 1.2 1.7 169 8.9 ssw 80 -18.8 **** as 22 23 -5.0 -12.2 -8.6 189 2.0 5.2 008 14.0 s as -18.9 **** 165 23 24 -9.6 -20.5 -15.1 016 3.3 3.6 011 8.3 NNE 72 -18.4 **** 100 24 25 -13.5 -22.7 -18.1 153 1.4 2.3 187 10.8 s 81 -19.3 **** 98 25 26 -1 t. 0 -19.5 -15.3 023 3.4 3.6 015 8.9 NNE 76 -18.0 **** 85 26 27 -17.9 -33.0 -25.5 019 .4 1.0 008 3.8 N 76 -27 .o **** 238 27 28 -21.9 -35.7 -28.8 151 1.4 2.2 167 8.9 s 73 -30.6 **** 235 28 29 -13.3 -25.9 -19.6 178 ., ., ..... 3.3 136 8.3 s 78 -22.4 **** 45 29 30 -2.2 -12.8 -7.5 164 6.7 7.0 159 17.8 SSE 74 -10.4 **** so 30 31 2.6 -5.6 -1.5 155 6.0 6.8 151 19.7 SE 78 -4.2 **'* 148 31 HOHTH 5.1 -35.7 -15.2 129 .6 3.1 226 25.4 NNE 77 -17.6 **** 3800 ,... .. , .... ..,. I tr-1 ...... 1o..l A'\.~ Gus·i MINUS i::. INTER;·Jf~Ll:l B. :3 \3 \.} ;;> I Vt:.J ... • HI 1"11•]/\. GUST ~.JEL. AT MAX. GUBT MINUS 1 INTERVAL ~~=> ':) t-{ ...• ~. GUST 'v'EI.... AT MAX. GUST PLUS 1 JNTEI~'.JAL 1 !5 I~.:: GUST ~,JEL. (.n r1AX. GUST PLW:) 2 INTERVALS f.~ I ~~ !OTE: RELATIVE HUMIDITY I~E~1DING~:1 AI~E UN I~ El.. I ABLE t..JHEN t.JIND SPEED~:; f.1RE LEE~:; TH(.~N ONE METER PEl~ SECOND. BUCH f~EADING\3 I·HWE NOT BEEN INCLUDED IN THE· DAILY Olx MONTHLY t1E~.N FOR REI...AT:t:tJE HUMIDITY AND DEl·.J PDir·!T, ------·-· -· ..... ~:3 U ~:3 :J: ·r I'! A 1··1 Y X) F?. C) t::: 1... t::: C:: ·r I~ :t: C P I~ 0 ... T J::: C ·r ' ~1-HHLY SUMM{~I~Y FOR ~JATANA WEATHEl~ STATION ~A TAKEN DURING SepteMber: 1984 !' I RES. RES. AVG. HAX. MAX. DAY'S l-'---MAX. MIN. tiEAtl WUID \4UlD WIN» GUST GUST P'VAL tiEAN lit AN SOU~R c' DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY llEG C DEG C DEG C l>EG ii/S 11/S DEG HIS :;;: DEG C 111'1 WH/SQli ----------------------------------------------------------------------------------------------------- 14.3 ; 1 7.2 062 1.5 2.1 096 6.3 NNE 48 -4.5 0.0 ****** 1 r 2 13.5 0.0 6.8 056 .9 1.8 332 8.3 NNE 51 -3.6 0.0 ****** 2 I 3 12.8 -1.6 5.6 085 2.1 2.4 139 6.3 tit 47 -4.9 0.0 ****** 3 l ~ 4 13.1 4.4 8.8 092 2.1 2.2 084 7.0 E 50 -1.4 0.0 ****** 4 5 14.0. 4.6 9.3 104 t.b 1.9 11& 7.6 ESE 55 .s 0.0 ****** 5 6 ··•·· 11.9 4.5 8.2 094 1.3 1.7 069 5.7 ESE 72 2.4 3.4 ****** 6 7 11.8 3.1 7.5 072 1.6 2.1 136 b.3 E 69 1.5 .8 ****** 7 r 8 13.2 -.3 6.5 063 2.b 3.1 091 8.9 E 60 -1.3 o.o ****** 8 I 9 15.5 -.1 7.7 050 .9 1.6 077 5.1 N 53 -2.7 .6 ****** 9 l ~ 10 15.4 .3 7.9 069 1.1 1.7 358 7.6 ENE 52 -2.9 1.0 ****** 10 11 14.4 -1.2 6.6 078 1.5 2.1 103 6.3 Etlt 53 -3.8 0.0 ****** 11 r-12 12.5 .8 6.7 117 .1 1.7 184 7.b E 65 -.2 ., .... ****** 12 l ~ 13 9.5 2.9 6.2 054 2.1 2.3 075 5.7 Nt 74 1.5 1.0 ****** 13 14 13.1 3.3 8.2 071 3.8 4.0 091 11.4 ENE 48 -2.4 0.0 ****** 14 r-15 13.2 S.3 9.3 076 3.6 4.1 070 8.9 E 59 1.3 0.0 ****** 15 I 16 13.9 -.1 6.9 303 .8 1.7 272 5.1 w 70 .7 0.0 ****** 16 l.-17 11.0 .4 5.7 305 1.1 2.0 279 7.6 N 79 1.8 1.0 ****** 17 18 7.7 1.9 4.8 093 .3 1.4 279 7.6 E 89 2.5 6.2 ****** 18 l ' 19 6.5 0.0 3.3 087 1.2 1.8 119 5.1 ESE 84 .7 7.2 **Hl!l! 19 20 8.5 -.5 4.0 002 2.0 2.5 015 7.0 N 71 -1.3 8.2 ****** 20 21 14.4 -3.0 5.7 057 .7 1.6 013 4.4 N b4 -3.8 0.0 ****** 21 r-22 11.9 -2.7 4.6. 070 2.5 2.8 085 8.3 E 62 -2.9 'o. o ****** 22 I 23 10.2 -.3 s.n 065 2.~ 2.7 078 9.3 ENE 51 -4.4 0. 0 ****** 23 l- 24 9.2 1.8 s.s 065 2.9 3.2 076 8.3 ME 46 -4.7 0.0 ****** 24 r ~ 25 10.1 2.6 ' .t OM 2.3 2.5 066 5.7 ENE 63 -.b 4.0 ****** 25 b •• l. 26 10.4 .3 5.4 020 .9 1.4 294 5.1 N 67 -.5 0.0 ****** 26 1!.7 11.4 -1.7 1.9 077 1.7 2 ~ 112 7.0 E 67 -2.7 0. 0 ****** 27 ... r-28 10.3 -.2 5.1 070 3.b 3.7 089 8.9 ENE 56 -2.9 0.0 ****** 28 ! 29 9.4 -., 6.3 068 4.1 4.3 075 12.1 ENE 75 2.4 0.0 ****** 29 .),"' L 30 10.8 4.7 7.8 082 5.6 5.7 088 12.1 E 63 .4 0.0 ****** 30 t\ONTH 15.5 -3.0 , A o .. 069 l.B ., " t...·J 075 12.1 ENt: 62 -1.2 33.6 ****** r. L. GUST I.JF.:L. AT 11(.'X. GUST i'1INU~3 ':> ,_ INTERVr~U3 8.3 c;tJST VEL .. f~T MA~"< I G\JST t""iiNLJS "1 T i'.ITl::l:> lJ 61 ·I 1\ Q ..,_I\ I l.ool"o "'I' I llo" ;• \.1' I W ~ ~ GUST 1-JEL. r~T rlr~~x. GUST PLU~~; '1 INTER tJr~,l.. 1 '1. 4 GUST vt:::L. (.iT MAX. GUST PLUS 2 INTERVf:1LS 8.3 r~F: I~ E.l...r~T l 1·JE HUMIDITY R F.r~D I NGE; i\f~F UNREL.Ir~BLE WI-lEN WIND SPEEDS r~RE LESS TH{~N ONF:: l•iETF.R PEF< EEcr:n-m. ~-3\.JCH Rt:?:ll)INGS HAV~:. NOT Bt::~EN I NCLUDI:::D IN THE DAI! ... Y OR i'"I!JNTHI .. Y i•1E{)N FOR I~ELr:~TJ 1..'E HUMIDITY f-'1!'-!D DEI,.J POINT. L L I~ ~ M c::: Cl N ~:> l.J L. T A N ·r ~=~ .... :t: N c~ . ~=> l.J ~=, :1: ·r N (.'~ 1--1 v l) •~ o a::: 1 ... a::: c ·r •~ :1: c::: P 1~ C) .:r 1::: c T MONTHLY SUMMARY FOR WATANA WEATHER STATION DATA TAKEN DURING October~ 1984 RES. RES. AVG. MAX. MAX. DAY'S HAX. MIN. HEAN WIND WIND WIND GUST GUST P'VAL MEAN HEAN SOLAR DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEC C DEG C DECC DEC H/S MIS DEG li/S % DEC C "" WH/5011 -----------------------------------------------------------------------------------------------------1 18.7 2.9 6.8 076 -4.5 4.7 092 10.2 ENE 62 -.2 **** *'**** 1 2 8.9 ,5 4.7 058 2.0 2.5 082 6.3 NE 72 -.5 **** ****** 2 3 8.3 -2.5 2.9 062 1.7 ?..1 084 6.3 E 7·4 -2.9 **** "**** 3 -4 7.8 -5.8 1.0 013 2.9 3.0 090 8.3 E 66 -5.3 **** ****** 4 5 6.1 -1.1 2.5 069 4.4 4.5 076 11.5 ENE 63 -3.5 **** 2336 s 6 6.8 .1 3.5 069 3.7 3.9 069 8.7 ENE 68 -1.7 **** 1235 6 7 7.2 -2.2 2.5 B67 2.3 2.4 071 9.2 EME 83 -.0 **** 1035 1 8 6.7 .1 3.4 072 2.1 3.3 072 8.3 ENE 90 1.9 **** 885 B 9 3.4 -2.4 .5 063 ,'/ 1.1 097 3.7 N 92 -.6 ***' 995 9 L" ... 10 5.5 -5,0 .3 073 2.3 2.5 085 7.4 E 83 -2.8 **** 1995 10 .tt 5.2 -4.5 .4 081 2.2 2.6 .074 8.3 ENE as -2.2 **** 1540 11 12 2.4 -1.9 .3 271 1.4 1.5 261 6.0 w 89 -1.3 **** 1325 12 13 4.2 -3,2 .5 838 1.5 1.9 049 6.4 N 72 -4.5 **** 1940 13 14 .2 -5.5 -2.7 051 1.9 2.0 047 6.0 NE 66 -7.9 **** 1380 14 r---15 .5 . -8.4 -4.0 291 .5 1.2 268 5.1 w 77 -6.6 IIH 1165 15 16 2.0 -5.0 -1.5 070 2.6 2.8 049 7.8 NE 74 -6.7 **** 1868 16 17 3.3 -11.1 -3.9 064 2.4 2.7 065 8.3 NE 56 -12.4 flf*f 1551 17 18 4.2 -7.6 -1.7 077 3.6 3.8 077 8.7 ENE 46 -11.8 **** 1365 18 19 1.5 -6.6 -2.6 075 .8 1.6 082 6.8 E 59 -9.8 **** 925 19 20 -2.2 -7.5 -4.9 075 4.3 4.4 082 9.7 ENE 78 -7.9 **** 905 20 21 3.2 -2.2 .5 075 5.7 5.8 082 12.0 ENE 69 -4.6 **** 1210 21 22 4.5 .3 2.4 076 4.8 5.0 076 12.4 ENE 75 -1.5 **** 020 22 23 1.2 -5.3 -2.1 265 2.5 2.6 252 7.4 w 96 -2.6 **** 535 23 24 o.o -10.8 -5.4 072 1.2 1.6 032 5.5 NE 80 -9.6 **** 1535 24 25 -.7 -12.7 -6.7 058 1.8 2.2 072 6.0 E 56 -13.2 **** 1175 25 26 -2.0 -14.0 -8.0 069 1.8 1.9 086 5.5 ENE 60 -15.5 **** 1125 2b l_. 27 -1.1 -14. t -7.6 077 1.3 1.5 0?8 4. t ENE 67 -15.3 **** 1875 ':1'7 ,_, 28 -4.5 -14.3 -9.4 074 3.2 3.3 074 9.2 ENE 65 -15.7 **** 107~ 28 r -29 -9.3 -16.2 -12.3 077 3.4 3.6 083 9.7 E 53 -20.8 ***' 1035 29 I l_~ 30 -9.4 -15.8 -12.6 077 4.6 4.7 092 18.1 ENE 52 -19.7 **** 550 30 31 -4.6 -11.7 -8.2 074 5.0 5.0 070 11.0 ENE 62 -1s .1 lHlff 895 31 I 110NTH 10.7 -16.2 -2.0 070 2.4 3.0 076 12.4 EtlE 70 -7.1 **** 33266 l" GUBT l.JEL. AT Ml~Y I"."II<~T M ·r 11.11 1!:~ 1".) Tl\ITI::"I:lllAI t:' 1"\ . ., t II I''• I .,.,,,, .. ,, 1 I I ,I I··; \J • •• ~ .... .1.1'·7 I 1 •• 1 ... V 1"11-...:;1 "{" I / [~ GUST IJEL. AT MAX. GUHT MINUS 1 INTERVAL 1 f) • 1 GUST ~)EL. AT MAX. GUST r:>r...us t INTEI~~)AL 10.6 GUST VEL. AT r1AX. GUST PLUH 2 INTERVALS 9.? [:~on~: RELATII.JE HUMIDITY READJNG!3 AI~E UNI~ELIABI..E WHEN WfND SPEED~3 ARF LE!3S THAN ONE METEI~ PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY or~ ~10NTHI_ Y MEAN FOR REL.AT:f.'-)E HUMIDITY AND DEl.~ POINT. [~ r L- :a: r--~ c . ~:> l.J ~=~ :J: ·r N A H Y l) I~ D 1::: 1... 1::: C~ T I~ :t: C P' F~ C) -..T a::: C~ ·y- MONTHLY SUMMAr~y FOH WATANA WEATHEI~ STATION --'OAT A TAKEN DURING NoveMber~ 1984 RES. RES. AlJC. MAX. MAX. DAY'S tiAX. MIN. tiE AN wum· WIND WIND GUST GUST p I VAL liEAtl MEAN SOLAR DAY TEMP. TEMP. TEMP, DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEC C DEG H/5 HIS DEC M/S ., DEG C Mli !4H/SQII .. ----------------------------------------------------------------------------------------------------- -1.5 -14.9 -8.2 085 2.8 2.9 080 7.4 E 65 -14.6 **** 1001 2 -5.9 -14.3 -10.1 091 2.0 2.2 099 5.5 E 55 -ta.s **** 925 2 3 -2.6 -14.2 -8.4 077 1.4 t.b 108 4.1 ENE 54 -17.0 **** 730 7 " 4 -8.1 -14.6 -11.4 059 1.2 t.S 031 5.1 NE 70 -15.5 **** 635 4 5 -3.5 -9.2 -6.4 060 4.1 4.1 066 8.3 ENE 71 -10.0 **** 215 5 6 -2.0 -4.8 -3.4 059 1.3 1.7 072 6.4 ENE 78 -6.5 f!ff-l! 220 6 7 -3.3 -7.1 -5.5 021 .2 .a 097 3.2 w 98 -6.1 **** 115 7 a -3.4 -7.9 -5.7 094 1.2 1.4 088 4.6 E 94 -6.7 **** 220 a 9 -6.6 -17.0 -tt.S 042 1.5 1.8 085 4.6 ENE 83 -13.3 **** 515 9 10 -12.8 -21.3 -17.1 044 1.6 2.0 107 4.6 N 83 -19.3 **** 560 10 11 -16.8 -23.4 -20.1 080 t.S 1.6 089 3.7 E 80 -23.7 **** 551 11 12 -15.9 -25.0 -20.5 082 2.0 2.2 105 5.5 E 71 -24.8 **** 570 12 13 -13.5 -22.8 -18.2 078 3.7 3.8 072 9.7 E b6 -23.4 **** 565 13 14 -13.5 -20.7 -17.1 066 '5.7 s.8 064 11.0 ENE 67 -22.1 !!fo)ff 305 14 15 -7.4 -13.3 -10.4 071 4.2 4.3 071 9.2 ENE 72 -14.0 **** 335 15 16 -7.5 -14.3 -10.9 084 2.3 2.4 076 6.4 E 89 -11.6 ·1Elf*f 395 16 17 -10.3 -16.3 -13.3 069 4.0 4.0 076 8.7 ENE 87 -14.2 'H'H 295 17 18 -8.5 -14.9 -11.7 062 3.1 3.2 078 7.8 ENE BS -12.4 **** 390 18 19 -10.5 -16.2 -13.4 071 3.1 3.2 062 11.0 ENE 85 -15.6 ***' 568 19 20 .4 -12.0 -5.8 081 7.1 7.2 102 14.3 E 83 -9.5 **** 110 20 21 1.3 -4.9 -1.8 034 .6 2.8 081 10.1 WNW 93 -2.3 **** 175 21 22 -4.6 -10.7 -7.7 004 1.2 1.3 001 3.7 N 89 -9.3 **** 360 22 23 -7.6 -1 t. 0 -9.3 017 .9 1.1 055 4.1 N 94 -10.6 **** 161 23 24 . -9.6 -12.7 -11.2 349 .7 .a 000 3.7 N 93 -12.9 **** 65 24 25 -12.6 -17.1 -14.9 061 .7 .a 103 2.3 NNE 91 -15.5 **** 105 2:5 26 -17.8 -22.1 -20.0 087 1.4 1.4 091 4.1 E 84 -21.9 ·l!Hl! 180 26 27 -12.1 -23.2 -17.7 086 2.5 2.5 ·079 11.0 E 83 -18 I 1 *HI 61 27 28 -11.7 -14.7 -13.2 069 4.5 4.6 060 8.3 ENE 82 -15.6 **** 120 28 29 10.4 -13.3 -1.5 074 3.3 3.5 077 7.4 ENE 81 -13.9 **** 13t 29 30 -8.3 -13.3 -10.8 082 2.0 2.1 065 6.9 E 83 -13.8 **** 140 30 MONTH 10.4 -25.0 -11.2 070 2.3 2.6 102 14.3 ENE 79 -14.4 H·U 10705 GUST VEL. AT MAX. GUST MINUS ':> I-J NTEr~ VAI...S :l ;,~ . () GUST VEL. AT MI~X. GUGT MINIJ~) 1 INTER~h~L 1:3 . 4 GUST VEL. AT MAX, GUST PLUS 1 INTE!~l)A! .. i ':> A At ... I -T GU~>T ~H::L. AT MAX. GUST PLUS 2 INTERVALS 11 . ::; L,~iOTE: I~EL.ATIVE HUMIDITY READINGS AI~E UNRELIABLE ~JHEN wnm !:!PEEDS AI~E LESS THAN ONE METE:H PEF~ SECOND. SUCH I~EA:OJ:NGB HA~)E NOT :f.!E?.EN INCLUDED IN THE DAILY 01~ MONTHLY MEAN FOI~ RELATIVE HUMIDITY AND DE~J POINT. ~MONTH~Y S~MMARY _FOR WATANA WEAT~ER STATION "DATA fAI<EN DURING DeceMber, 19B . ~-~ --~ .; r ~ i i . [ ~ DAY 1 2 3 4 5 & 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH MAX. TEMP. DEG C -5.8 -4.1 -2.9 o.o -1.0 -6.7 -6.7 -6.7 -9.4 -15.5 ***** ***** -16.5 -18.7 ***** ***** -7.9 -4.0 -3.1 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 0.0 HIN. TEMP. DEG C -8.5 -8.7 -4.9 -2.9 -6.7 -10.1 -9.5 -9,3 -19.3 -20.6 ***** ***** -21.6 -24.5 "***** ***** -11.3 -8.4 -12.9 lf·lfflfll ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** -24.5 GUST GIJST GUST GUST MEAN TEMP. DEG C -7.2 -6.4 -3.9 -1.5 -3.9 -8.4 -9.1 -8.0 -14.~ -18.1 ***** ***** -19.i -21.& ***** ***** -9.6 -6.2 -8.0 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** -9.6 VEL. VEL. VEL. VEL. RES. WIND DIR. DtG nso 057 061 868 065 069 070 278 332 072 *** fllf 080 082 *** *** 115 097 078 *** *** *** *** *** *** *** *** *** lflflf *** *** 063 RES. WI ttl> SPD. MIS 3.6 ~.4 4.2 4.8 3.7 1.0 1.5 2.3 .7 4.5 **** **** 1.7 2.4 **** **** .7 .a 2.1 **** **** **** **** **** AVG. WIND SPD. M/S MAX. GUST DIR. DEG 3.7 050 4.5 059 4.3 070 4.9 089 l.a 068 1.1 072 1.7 076 3.6 2&6 1.5 262 4.6 057 **** *** **** *** 1. a 1 oo 2.5 095 **** *** **** *** .9 094 .9 126 3.2 079 Ulllf *ltlf **** *** **** *** **** *** **** *** **** **** *** **** **** *** **** **** *** **** **** *** **** **** *** **** **** *** **** **** *** 2.3 3.0 089 MAX. GUST P'VAL MEAN MEAN DP Df.G C SPD. DIR. RH K/S % 6.4 ME 7.8 NE 7.4 Et~E 11.0 ENE 9.2 ENE 2.8 E 6.4 ENE 10.1 w 7.4 N 11.0 ENE **** *** **** *** 4.6 E 7.8 ENE **** *** **** *** 3.2 ESE 2.8 E 8.7 E **** *** **** *** **** *** **** *** **** *** 79 -10.2 75 -10.3 75 -7.8 75 -5.2 85 -4.a 87 -10.6 as -9.6 92 -9.3 85 -16.2 75 -20.9 ** ***** ** ***** 73 -22.7 65 -26.9 ** ***** ** ***** 93 -10.3 93 -7' 1 70 -13.8 ** ***** ** ***** ** ***** ** ***** ** ***** **** *** ** ***** **** *** ** ***** **** *** ** ***** **** *** ** ***** **** *** ** ***** **** *** ** ***** **** *** ** ***** 11.0 ENE BO -12.4 r:n Mr;':)X. GUST i"iiNUS ;;?. INTEI~\JAL~3 AT MAX. GUST MINIJS 1 INTERVAL AT Mr!\X. GUST PLUS l INTERtJr~L. AT MAX. GUST PLUS 2 INT~RVALS PRECIP 1'\H **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** lflflf **** **** **** **** **** **** **** **** **** **** **** 10.1 10.6 8.'7 6.? DAY'S SOLAR ENERGY DAY WH/SQH 125 135 2 115 . 3 105 4 125 5 120 6 aa 7 85 8 2&5 9 117 10 ****** 11 ****** 12 48 13 222 14 ****** 15 ****** 16 13 17 50 18 305 19 ·:.!fU** 20 ****** 21 ****** 22 ****** 23 ****** 24 ****** 25 ****** 2& ****** 27 ****** 28 ****** 29 ****** 30 ****** 31 1910 l~OTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY or~ MONTHLY MEf~N FOR RELf!,Til.JE HUMIDITY AND DE~J PDINT. r ~ co m ..-I 0... !:Ll lf1 (_ ! ' I l ' ~ ~ lf1 ~ ~ ~ ~ z ~ !:Ll !:Ll ~ ~ ~ ~ SEP 1984 TALKEETNA, ALASKA ISSN 0198-0424 WEA SER CONTRACT HET OBS LOCAL CLIMATOLOGICAL DATA STATE AIRPORT Monthly Summary LATITUDE G2°1a ' LONGITUDE 150°0G ' ELEVAT10N IGROUNOI 345 FEET TJHE ZONE ALASKA 2GS2a DEGREE DAYS WEATHER TYPES SNOW AVERAGE WINO SKY COVER TEMPERATURE °F BASE o5°F ICE PRECIPITATION STAIION I H. P. H. I SUNSHINE I TENTHS! 1 FOG PELLETS PRESSURE z~ z z 2 HEAVY FOG OR .,. IN "' FASTEST "" .... ... 0 ::> :5:~ 3 THUNDERSTORM ICE ON 5 ... INCHES ... "' HI LE ~ "'~ ~ -0. ... "' ~ "" "" 4 ICE PELLETS GROUND ~ "' "' .., --"" ~= ... :c ·';; ... 0. "'-"' :z: ... X: .,_ 5 HAIL AT 0.. ELEV. -;;; "' :z: OV'> :; "' a: a: "' "' •. GLAZE 0200 ~-... 3% :z: Q Q --X: X: ... :::>0 .., z "' "' ~-"" "" .., -"' -0. '"'"' :c :z: :::> :::> "' -:z: <.::>-"'"' '"'"' ... "' _.,. -"' .., :z: V'>:Z: <.00 X: X: <C a: .,o == -z 7 OUSTSTORM ... FEET ~ _, "" "' '-' -... _, -::> --... --0: <C X: o:O.. ~-~~ ':%. ... ~ ::> :::> 0: .., , ... :::> '-'"" a:"' :z: :z::: ...... >< :z: .., 0. 0 '"'"' """' Q<.O 8 SHOKE. HAZE INCHES 0 z ABOVE "' V'> ';: ... 0: z a:-z 0 -"" <C -> ... 0: ,...., ...... ...... ~= H. S. L. .., .., 0. -i: ..,.., ::> = -o <C 0 X: X: "" ou.. <O :c "' """' q SLOWING SNOW "'-a: 0: "" "' 0 0.-vo-X:-0 1 2 3 4 5 & 7A 78 a 9 10 11 12 13 14 15 1(, 17 18 19 20 21 22 01 G4 33 49 -2 37 1G 0 0 0.00 0.0 29.590 19 1.2 3.0 a 20 1 1 01 02 GG 32 49 -2 37 1& 0 0 0.00 0.0 29.G90 34 0.3 2.7 G 18 1 1 02 03 G5 34 so -1 33 15 0 0 0.00 0.0 29.540 01 7.2 7. 8 17 02 0 03 04 G5 34 50 0 15 0 0 0.00 0.0 9 15 G 04 05 G5 33 49 -1 38 IG 0 0 0.00 0.0 29.310 20 1. G 4. 1 10 20 4 05 OG G3 39 51 1 44 14 0 0 O.OG 0.0 29.310 17 2.3 4.8 15 18 G OG 07 G1 42 52 3 45 13 0 0 0.02 0.0 29.335 34 3.0 3.9 7 3G 9 9 07 08 G8 44 SG* 7 42 9 0 0 0.00 0.0 29.320 03 1.2 S.G 10 14 9 9 08 09 GG 3G 51 2 40 14 0 0 0.00 0.0 29.4GO 21 0.9 3.4 7 15 G 4 09 10 G9* 33 51 3 37 14 0 0 0.00 0.0 29.470 34 0.5 3.1 a 18 1 10 11 GS 34 50 2 15 0 0 0.00 0.0 a 20 1 11 12 58 3G 47 -1 41 18 0 1 0 0.08 0.0 29.%0 02 1. 8 3.0 9 31 10 12 13 52 44 48 1 45 17 0 1 0 O.OG 0.0 29.590 3G 4,3 5.5 a 35 10 13 14 Gl 40 51 4 40 14 0 0 0.00 0.0 29.030 01 2.8 4.2 12 34 10 10 14 15 G2 40 51 5 42 14 0 0 0.00 0.0 2a.910 14 1.2 3.2 9 17 9 10 15 1 G G2 34 48 2 40 17 0 0 0.02 0.0 29.010 15 0.9 4.7 12 17 4 4 1 G 17 55 4Z 49 3 4G IG 0 2 0 0.12 0.0 29.300 12 0. 1 3.5 8 14 10 17 18 54 42 48 3 17 -0 1 0 0.05 0.0 13 18 10 18 19 52 3G 44 -1 40 21 0 1 0 0.7G 0.0 29.590 1 G 5.G 7.5 15 15 10 19 20 57 33 45 1 38 20 0 1 0 0.11 0.0 29.G70 OG 0.8 4.5 10 02 4 20 21 58 24* 41* -3 33 24 0 1 0 0.00 0.0 29.880 32 0.7 2.0 G 2& 0 0 21 22 G2 27 45 2 34 20 0 0 0.00 0.0 29.935 31 1. 3 3.1 9 29 8 G 22 23 52 34 43 0 37 22 0 0 0.00 0.0 29.790 02 1 .2 2.4 7 18 10 10 23 24 55 41 48 G 39 17 0 0 T 0.0 29.G40 01 3.0 3.5 7 34 10 24 25 52 43 48 G 17 0 1 0 0.17 0.0 a 02 10 25 2G 58 3G 47 5 40 18 0 2 0 0.00 0.0 29.790 31 0.1 2.1 G 21 4 2G 27 GO 3G 48 7 38 17 0 0 0.00 0.0 29.820 31 1. 4 4.1 a 2G 3 27 28 G2 32' 47 G 36 ra 0 0 0.02 0.0 29.4qo 04 3.1 5.1 q 05 8 7 28 2q 57 44 51 11 45 14 0 1 0 0. 1G 0.0 2q.o8o 27 0.5 4.8 q 17 10 10 29 30 58 45 52 13 41 13 0 1 0 0.10 0.0 28.8GO 35 4.0 5.0 q 33 a 9 30 SUM SUM TOTAL TOTAL NUMBER OF DAYS TOTAL TOTAL FOR THE MONTH: TOTAL % SUM SUH. 1804 1103 4q1 0 1.73 0.0 29. 4G5 03 0.5 4.2 171 02 roa 192 AVG. AVG. AVG. OEP. AVG. OEP. OEP. PRECIPITATION OEP. OA IE: 3 POSSI9L[ IIOIIfM AVG. AVG. GO. 1 3&.8 48.5 2. 3q. -82 0 ) .01 INCH. 13 -2.24 G.4 NUHBER OF DAYS SEASON TO OAT[ ~NOW, ICE PELLETS GREATEST IN 24 HOURS AND OATES GREATEST DEPTH ON GROUND OF TOTAL TOTAL > 1. 0 INCH 0 HAXIHUH TEMP. HINIHUM IEHP. 1028 3 IHUNOERSIORHS 0 PREC !PITA liON SNOW, ICE PELLETS SNOW, ICE PELLETS OR ICE AND DATE ) -70 ° < 32° ( 32° < oo OEP. OEP. HEAVY FOG 2 0.87 19-20 0.0 0 0 0 4 0 -(,9 3 CLEAR 7 PARIL Y CLOUDY 7 CLOUDY 1 (, *EXTREME FOR THE MONTH-LAST OCCURRENCE IF MORE THAN ONE. T TRACE AMOUNT. +ALSO ON EARLIER OATEISI. HEAVY FOG: VISIBILITY 1/4 MILE OR LESS. BLANK ENTRIES DENOTE HISSING OR UNREPORTED DATA. HOURS OF UPS. HAY BE REDUCED ON ~ V~R!~8LE SCHEDULE. DATA IN COLS & AND 12-15 ARE BASED ON 21 OR MORE OBSERVATIONS AT HOURLY INTERVALS. RESULTANT WINO IS THE VECTOR SUM OF WINO SPEEDS AND DIRECTIONS DIViDED BY THE NUMBER OF OBSERVATIONS. ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST MILE -HIGHEST RECORDED SPEED FOR WHlCH A MILE OF WINO PASSES STATION (DIRECTION IN COMPASS POINTSi. FASTEST OBSERv£0 UN£ MINUTE WINO -HIGHEST ONE MINUTE SPEED !DIRECTION IN JENS OF DEGREES!. PEAK GUST-HIGHEST INSTANTANEOUS WINO SPEED !A 1 APPEARS IN THE OIRECTION COLUMN!. ERRORS WILL BE CORRECTED AND NOTED IN SUBSEQUENT PUBLICATIONS. I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, AND IS COMPILED FROH RECORDS ON FILE AT THE NATIONAL CLIMATIC OATA CENTER, ASHEVILLE, NORTH CAROLINA, 28801 noaa NATIONAL OCEANIC ANO ATMOSPHERIC AOHINISTRATION NATIONAL ENVIRONMENTAL SATELLITE, DATA AND INFORMATION SERVICE NATIONAL CLIMATIC DATA CENTER ASHEVILLE NORTH CAROLINA :Y~SJSI~ DIRfCTOR NATIONAL CLIMATIC DATA CENTER ~ OJ m .....-1 ~ u 0 <r: ~ lf). <r: ~ <r: ~ <r: z .~ w w ~ ~ <r: ~ ISSN orq8-0424 OCT 1q94 TALKEETNA, ALASKA WEA SER CONTRACT MET OBS LOCAL CLIMATOLOGICAL DATA STATE AIRPORT Monthly Summary LATITUDE 62°18 ' LONGITUDE 150°06 ' ELEVATION IGROUNOI 345 FEET l!ME ZONE ALASKA 26528 DEGREE OAYS WEATHER TYPES SNOW AVERAGE WINO SKY COVER TEMPERATURE °F BASE b5°F ICE PRECIPITATION SIAl! ON I M.P.H. I SUNSHINE I TENTHS I 1 FOG PELLE IS PRESSURE z ~ z z 2 HEAVY FOG OR ~ IN = FASTEST ,; ~ ~ ~~ 000: 3 THUNDERSTORM ICE ON z INCHES ~ = MILE ~ ~"""'). ~ -0.. ~ = _. 4 ICE PELLETS GROUND co: = v> ~ -;: co: ~~ :;;;= ~ 0.. 0.. ... v> ~"' 5 HAll AT ELEV. ~ ~ v> z Qv> -"' "'"' "' "' => ~ 356 = = ~ "' "' ~ =>= ~ z "" "" b GLAZE 0200 a-~-co: co: ~ -v> -o.. ~ v> :z:z ::::> ::::> "" -z ""-~~ -~ "' ~ z v> z <.OQ "' "' co: "' ..,o ~~ ==~ 7 DUSTSTORM ~ ~ FEET ~ ~ co: Q '-' ~ _. -::::> --..... - -"' c< "' "'0.. ~-"'"' •% ::::> ::::> "' ..... ~ ::::> '-' c< "'v> """' ~ ->< z ~ O..Q ~"' 0<.0 8 SMOKE, HAZE INCHES ~~ "'~ ABOVE v> v> ~ ~ "' z "'-z = :;;: ~~ -z 0 z c< c< -~ ~"' >~ 0~ co:-~= H. S. L. ·~ ~ > 0.. --~0 ::::>0 -o c "' "' .., cu.. co:o :Z:CQ '-'"' q BLOWING SNOW "'-c: c: .., v> Q "' o..-v>-.:-= 1 2 3 4 5 b 7A 7B 8 q 10 11 12 13 14 15 1& 1 7 18 [q 20 21 22 01 sq, 36 48 q 37 17 0 0 T 0.0 28.825 0& 2.0 4.7 8 3& 01 02 5& 3q 48f 10 17 0 0 0.04 0.0 7 05 8 02 03 54 30 42 4 3& 23 0 0 0.00 . 0. 0 2q.280 34 2.& 4. 1 8 28 & 03 04 52 25 3q 2 30 2& 0 0 0.00 0.0 2q.o8o 02 1. 3 3.2 7 3& 0 04 05 52 28 40 3 30 25 0 0 0.00 0.0 28.840 01 5.2 5.8 q 34 . 10 q 05 0& 54 3& 45 q 34 20 0 0 T 0.0 28.780 3& 5.6 &.3 12 02 q q 0& 07 48 33 41 5 35 24 0 0 T 0.0 28.580 03 1.1 2.q 7 08 10 q 07 08 41 33 37 2 35 28 0 1 0 0.50 0.0 28.7&0 12 0.& 2.& 1 2 15 08 oq 45 30 38 3 27 0 2 0 0.04 0.0 & 33 q oq 10 45 24 35 1 2q 30 0 2 0 0.00 0.0 28.840 04 1. 2 3. 1 7 18 6 10 11 40 21 31 -3 28 34 0 1 0 0. 1 7 T 28.810 07 0.& 3.4 8 1 7 8 11 12 43 28 3& 3 32 2q 0 1 0 0.03 0.0 2q.o8o 35 1. q 3.0 7 27 b b 12 13 46 2& 36 3 2q 2q 0 0 0.00 0.0 2q.320 3& 2.3 2. 7 12 34 q 8 13 14 41 1 q 30 -2 23 35 0 0 0.00 0.0 2q.8oo 11 0.3 1 . b 5 03 0 2 14 15 37 [q 28 -4 22 37 0 0 0.00 0.0 30.070 02 0.8 1 . 0 8 23 15 1 & 51 20 3& 5 2q 0 0 0.00 0.0 14 02 1 1 b 1 7 48 20 34 3 31 0 0 0.00 0.0 30.210 14 02 4 1 7 18 41 15 28 -2 37 0 0 0.00 0.0 2q.q2o 7 1 7 1 18 [q 41 1 7 2q -1 3& 0 0 0.00 0.0 2q.&80 5 oq 4 4 1 q 20 36 27 32 3 33 0 4 0 T T 2q.400 13 34 10 q 20 21 3& 33 35 b 30 0 1 4 T 0.&& 2.0 2q,220 12 02 10 10 21 22 47 34 41 13 24 0 1 0.15 0.0 2q. 110 21 3& 22 23 36 31 34 b 31 0 1 T 0.20 1. 0 12 15 q 23 24 34 22 28 0 37 0 T 0.00 0.0 2q.320 q 33 0 24 25 3q 24 32 5 33 0 T 0.00 0.0 2q.&&O 18 02 0 25 2& 3q 1& 28 1 37 0 T 0.00 0.0 2q.no 10 02 0 0 2& 27 34 12 23 -3 42 0 T 0.00 0.0 2q.955 7 33 0 0 27 28 37 8* 23 -3 42 0 T 0.00 0.0 2q, 760 15 3& 1 0 28 2q 28 10 1q, -6 4& 0 0 0.00 0.0 2q,q25 14 3& 1 2q 30 27 1 b 22 -3 43 0 0 T T 16 03 10 30 31 33 21 27 3 38 0 T 0.00 0.0 2q.58o 1 b 02 0 31 SUM SUM TOTAL TOTAL NUMBER OF OAYS TOTAL TOTAL FOR THE MONTH: TOTAL X SUM SUM 1320 753 q7o 0 1 .7q 3.0 21 3& FOR 1 32 AVG. AVG. AVG. OEP. AVG. DEP. DEP. PRECIPITM!ON DEP. DATE: 22 POSSIBLE ltOIHH AVG. AVG. 42.& 24.3 33.5 2.1 -72 0 ) . 01 INCH. 8 -0.84 4.q NUMBER OF DAYS SEASON TO DATE ~NOW, ICE PELLETS GREATEST IN 24 HOURS AND OATES GREATEST DEPTH ON GROUNB OF TOTAL TOTAL > 1.0 INCH 2 MAX !HUH TEMP. MINIMUM TEMP. 1qq8 3 THUNDERSTORMS 0 PREC 1 PI TAT I ON SNOW, TCE PELLETS SNOW, ICE PELLETS OR ICE AND DATE 5 70° < 32° < 32° < oo OEP. DEP. HEAVY FOG 2 0.&& 21 2.0 21 1 22• 0 2 24 0 -141 3 CLEAR 11 PARIL Y CLOUDY 5 CLOUDY 11 *EXTREME FOR THE MONTH-LAST OCCURRENCE IF MORE THAN ONE. T TRACE AMOUNT. • ALSO ON EARLIER OATEISI. HEAVY FOG: VISIBILITY 1/4 MILE OR LESS. BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA. riOURS OF OPS. nAi BE REDuCED ON A vARIABLE SCHEDULE. DATA IN COLS & AND 12-15 ARE BASED ON 21 OR MORE OBSERVATIONS AT HOURLY INTERVALS. RESULTANT WINO IS THE VECTOR SUM OF WINO SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS. ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST MILE -HIGHEST RECORDED SPEED FOR WHICH A MILE OF WINO PASSES SIAl ION IOIRECTION IN COMPASS PO!NISI. FASIEST OBSERVED ONE MINUTE WINO -HIGHEST ONE MINUTE SPEED !DIRECTION IN TENS OF DEGREES!. PEAK GUST-HIGHEST INSTANTANEOUS WIND SPEED !A I APPEARS IN THE DIRECTION COLUMNI. ERRORS WILL BE CORRECTED AND NOTED IN SUBSEQUENT PUBLICATIONS. I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, AND IS COMPILED FROM RECORDS ON FILE AT THE NATIONAL CLIMATIC DATA CENTER, ASHEVILLE, NORTH CAROLINA, 28801 ~~jJJ/~ noaa NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL ENVIRONMENTAL SATELLITE, DATA AND 1 NFORMA TI ON SERV 1 CE NATIONAL CLIMATIC DATA CENTER ASHEVILLE NORTH CAROLINA DIRECTOR NATIONAL CLIMATIC DATA CENTER r ~ I I l .. I l" [. I L." l_ I L~ > 0 z NOV 1984 TALKEETNA, ALASKA WEA SER CONTRACT HET OBS LOCAL CLIMATOLOGICAL DATA STATE AiRPORT Monthly Summary LAIJIUDE &2°18-' LONGIIUOE 150° 0& ' ELEVAIION IGROUNDI 345 FEEl mE ZONE ALASKA 2&528 DEGREE DAYS WEA I HER IYPES SNOW AVERAGE WIND SKY COVER TEMPERATURE OF BASE &S°F ICE PREC!PIIAI!ON SIAIION IH.P .H. I SUNSH l NE IIENIHSJ I FOG PELLE IS PRESSURE z~ z z 2 HEAVY FOG OR "' IN Q FASIEST ~ ~ ~~ cce 3 IHUNOERSIORM ICE ON z ~ INCHES a: ~ Q HI LE ~ "'~ ~ -~ ~ a> ~ "' 4 ICE PELLEIS GROUND .. ~ Q ~ -;: .. ~= ~:: ~ CL .... "' ~"' S HAIL AI ~ ~ ELEV. ;:;; ;:;; "' z c"' -"' a: a: :c :c => ~ Q Q ~ "' "' ~ =:> c ~z "' "' r. GLAZE 0200 "'-'-'-35& <C <C ~ -"' -CL ~"' :J:Z =:> =:> "' _,., ..,-~~ "'"' ~"' _.., "' ~ z "':z: "'"' "' "' <C a: ce"' -z 7 DUSTSIORH ~ ~ fEET ~ ~ <C Q <..> ~~ -=> --~ --a: <C "' a:~ ~-"'"' ., =:> ~ a: ~ ~ =:> '-' <C a: "' :z:z: .... 8 SHOKE. HAZE INCHES ~ ...... :c '-' ABOVE ~ :z: ~ CL <:> ~,. <<.O <:><.:> -z "'z "' ~ ~ a: z a:-:z: Q <C <C -> ~a: ~~ ~~ c ... .. -z-~ ~ > CL - -~"' =:> Q -c < Q "' "' <C "'"-<C "' :J: a> '-'a> 9 BLOWING SNOW "'-"'-H. S. L. a: a: <C "' Q "' CL-..,_ ,_ Q 1 2 3 4 5 & 7A 7B 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 . 01 34 10 22 -2 9 43 0 T 0.00 0.0 29.150 02 4.9 5.4 q 02 0 01 02 34 7 21 -2 7 44 0 0 0.00 0.0 28.970 03 2.0 2.8 q 01 0 1 02 03 29 4 17 -E. b 48 0 0 0.00 0.0 29. 170 OE. 0.4 2.0 b 04 3 1 03 04 27 5 1 b -E. 7 49 0 0 0.00 0.0 29.220 01 2.0 2.5 8 04 5 5 04 05 34 22 28 b 22 37 0 1 0 T T 29.020 35 b. 7 7.0 12 35 10 OS OE. 35 21 28 7 37 0 T 0.00 0.0 b 29 q 06 07 29 16 23 2 21 42 0 T 0.00 0.0 29.100 02 1 . 7 1. q 5 01 10 07 08 27 5 1 b -5 10 49 0 T 0.00 0.0 29.240 05 1.9 2.6 5 05 8 08 09 16 1 q -11 1 5& 0 T 0.00 0.0 29.420 05 1.1 1.2 5 07 3 3 09 10 18 -3 8 -12 -1 57 0 T 0.00 0.0 29.570 04 3. 1 3.8 b 05 0 0 10 11 13 -E. 4 -15 -E. b 1 0 T 0.00 0.0 29.640 04 3. 7 3.9 b 04 0 0 11 12 19 -3 8 -11 -4 57 0 T 0.00 0.0 29.490 02 4.5 E..O 12 34 0 12 13 19 -5 7 -12 58 0 T 0.00 0.0 12 02 q 13 14 20 5 13 -5 -2 52 0 T 0.00 0.0 29.435 02 12.5 13.0 21 01 10 14 15 29 20 25 7 14 40 0 1 T 0.06 1 .a 29.240 01 8.6 9.8 21 01 7 15 16 28 8 18 1 1 7 47 0 2 0.00 0.0 29. 120 36 6.9 7.3 1 & 03 8 & I & 17 25 & 1 b -1 q 49 0 2 0.00 0.0 29.040 35 7.5 8.2 14 36 10 & 1 7 18 28 21 25 8 14 40 0 2 0.00 0.0 29.000 01 10.3 10. 7 15 03 8 b 18 1 q 27 7 17 1 q 48 0 2 0.00 0.0 29.125 01 7.7 8.2 20 03 b 19 20 31* 25 31 ~ 15 34 0 1 2 0.0& 1.4 20 03 I 0 20 21 34 30 32* 17 31 33 0 2 3 0.17 0. 7 28.510 I 0 0.4 2.3 8 IE. 10 21 22 30 7 19 4 14 46 0 1 2 0.00 0.0 28.440 04 I. 8 I. q & 03 2 22 23 I 7 14 I & 1 IS 49 0 I b 2 0.03 0.7 28.7&5 35 I .2 I. 5 5 34 10 10 23 24 20 IE. 18 4 I & 47 0 I 3 0.07 I. 4 29.000 17 0.8 0.9 & 17 10 10 24 25 I b 5 11 -3 q 54 0 I 4 0.03 0.& 29.310 07 0.1 0. I 3 07 10 q 25 26 1-3 -8* 3* -11 0 &2 0 1 4 T T 29.510 01 3.3 3.& q 36 8 26 27 18 -& b -7 59 0 4 0.00 0.0 7 31 10 27 28 22 17 20 7 13 45 0 1 4 T T 29. 110 36 9.8 10.2 17 3& 10 28 29 24 17 21 8 15 44 0 1 4 0.02 0.6 29.230 35 7.2 7.7 14 35 10 29 30 25 21 23 11 18 42 0 1 5 T T 29.410 35 &.& &.8 9 35 q 10 30 SUM SUK TOIAL IOIAL NUKBER OF DAYS TOIAL TOTAL FOR THE KONTH: IOIAL % SUK SUM 7 4 7 279 1429 0 0. 44 7. 2 29.150 01 4.3 5. I 21 01 fOR 205 AVG. AVG. AVG. DEP. AVG. DEP. DEP. PRECIPI I AI ION DEP. DATE: 15+ POSSIBL£ IIOIIlM AVG. AVG. 24.9 9.3 1 7. 1 -O.Ii 1 0. 3 10 0 ) . 01 INCH. 7 -1 . 43 6.8 NUMBER OF DAYS SEASON TO DATE SNOW, ICE PELLETS GREAIESI IN 24 HOURS AND DAlES GREAIESI DEPIH ON GROUND OF TOTAL TOIAL ) I .0 INCH 3 KAXIKUK TEKP. KINIKUH TEKP. 3427 3 THUNDERSTORHS 0 PRECIPIIAIION SNOW ICE PELLETS SNOW, ICE PELLEIS OR ICE AND DAlE >" 70 ° ( )20 ( )20 ( 00 DEP. OEP. HEAVY FOG 1 0.22 20-21 1.8 20-21+ 5 30+ 0 24 30 li -1 31 3 CLEAR 8 PARTL! CLOUDY 3 CLOUD! 1 q *EXTREME FOR IHE MONTH -LAST OCCURRENCE IF MORE THAN ONE. T TRACE AMOUNT. +ALSO ON EARLIER.OATEISI. HEAVY FOG: VISIBILITY 1/4 MILE OR LESS. BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA. HOURS OF OPS. MAY BE REDUCED ON A VARIABLE SCHEDULE. DATA IN COLS E. AND 12-15 ARE BASED ON 21 OR MORE OBSERVATIONS AT HOURLY INTERVALS. RESULTANT ~!NO IS THE VECTOR SUM OF ~[NO SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS. ONE OF THREE ~INO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST MILE -HIGHEST RECORDED SPEED FOR ~HICH A MILE OF ~!NO PASSES STAT!ON [O!RECT!ON !N COMPASS PC!NTSl. rASTEST OBSERVED ONE MINUTE ~!NO -HIGHEST ONE MINUTE SPEED [DIRECTION IN TENS OF DEGREESI. PEAK GUST-HIGHEST INSTANTANEOUS ~INO SPEED fA I APPEARS IN THE DIRECTION COLUMN!. ERRORS ~ILL BE CORRECTED AND NOTED IN SUBSEQUENT PUBLICATIONS. I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC ADH!NISTRATION, AND IS COMPILED FROM RECORDS ON FILE AT THE NATIONAL CLIMATIC DATA CENTER, ASHEVILLE, NORTH CAROLINA, 28801 noaa NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL ENVIRONHENIAL SATELLITE, DATA AND INFORMAIION SERVICE NATIONAL CLIMATIC DATA CENIER ASHEVILLE NORTH CAROLINA DIRECTOR NATIONAL CLIMATIC DATA CENTER ··~ Cl) . 'O':l ..--! u ~,~ 0 L <r: ~ rJJ <r: .....:! <r: -<t! z E-- ~ ~ ~ .....:! <r: E-- DEC 1 984 TALKEETNA, ALASKA WEA SER CONTRACT MET OBS LOCAL CLIMATOLOGICAL DATA STATE AIRPORT Monthly Summary LATITUDE 62°18 ' LONGITUDE 150°06 ' ELEVATION IGROUNOJ 345 FEET TIME ZONE ALASKA 26528 DEGREE DAYS WEA !HER TYPES SNOW AVERAGE WINO SKY COVER TEMPERATURE °F BASE !.5°F ICE PREC I PIT AT I ON STATION I M .P .H. I SUNSHINE I TENTHS I 1 FOG PELLETS PRESSURE z ~ zz 2 HEAVY FOG OR ~ IN Q FASTEST .... a: .... ::;::=! ~~ 3 THUNDERSTORM ICE ON z ~ INCHES .... Q MILE ~ -"-..... CD ~ -=: -=: 4 ICE PELLE IS GROUND "" Q v> ..... --"" ~;= ~;: ~ "-~ v> :J:: '"'"" 5 HAIL AT ~ ELEV. :z :z v> z 0~ -"' """" =-=-=> .... 0 .... >:: >:: .... => 0 <..oZ ~~ "' !. GLAZE 0200 C>-~-3% -=: .. .... -v> -o.. .... v> :J::Z => => "' -z "'-z v> ~ ~ -~ -"' .... z v> z "'"" >:: >:: -=: "" -=== -z 7 OUSTSTORM .... ~ FEET ~ ~ -=: Q <...> s .... ~ -=> --.... - -"" """" ""~ ~-~~ ., => => E. .... .... <...><=: "" v> Z>:: .... "'~ >< z .... 0..0 .... ,. <C ·~ "'"' B SMOKE, HAZE INCHES 0 z ABOVE v> v> .... "" z ""-z "' -.. ""' -> '"'"" :;~ ........ o .... z-.... .... > e; -~ .... o => 0 -o -=: "' >:: >:: "" "'~ :J:: CD ~CD ~ BLOWING SNOW "'-M.S. L. "" "" ""' Q o..-v>--=-"' 1 2 3 4 5 b 7A 7B 8 q 10 11 12 13 14 15 IE. 17 18 19 20 21 22 01 31 25 28 16 20 37 0 5 0.00 0.0 2'L510 01 9.3 9.8 16 03 10 10 01 02 33 26 30 18 18 35 0 5 0.00 0.0 29.450 36 10.2 10.5 15 36 10 10 02 03 37 32 35 24 25 30 0 1 5 T T 29.290 01 10.4 10.8 21 02 10 03 04 39l 31 35* 24 30 0 5 T T 13 35 10 04 05 36 28 32 21 28 33 0 3 0.01 0.0 28.695 02 6.4 7. 1 1 3 04 10 05 06 28 19 24 13 20 41 0 3 T T 28.730 04 1 .8 2. 1 5 05 10 06 07 26 22 24 14 21 41 0 1 6 3 0.07 2.4 28.%0 03 4.3 5.2 10 04 10 10 07 08 25 16 21 11 19 44 0 1 6 0.05 O.b 28.700 34 0.7 2.8 7 36 10 10 08 09 1 q -10 5 -5 0 60 0 6 0.00 0.0 29. 170 04 1. 5 2.3 6 05 2 4 09 10 1 4 -11 2 -8 -3 63 0 6 0.00 0.0 29.040 01 7.5 8.1 15 01 10 10 11 14 -7 4 -5 61 0 6 0.00 0.0 13 02 4 11 12 3 -13 -5* -14 -14 70 0 5 0.00 0.0 29.190 02 4.0 4.6 14 03 7 12 13 11 -16 -3 -12 -9 68 0 5 0.00 0.0 29.020 01 5.7 6. 5 18 04 7 13 14 15 -16* -1 -10 -12 66 0 5 0.00 0.0 29.610 36 6.4 7. 7 1 7 02 0 0 14 15 15 -4 b -2 4 59 0 1 5 0.07 0.9 29.910 02 1. 5 1. 8 8 03 10 10 15 1£, 20 15 18 10 14 47 0 1 6 0.04 0.2 30.050 01 4.9 5.4 12 02 10 10 1 b 17 24 20 22 14 20 43 0 1 b b 0.09 0.8 29.880 35 1.5 3.3 10 01 10 1 7 18 30 24 27 19 38 0 1 6 9 0.54 5.4 7 21 10 18 19 30 12 21 I 3 15 44 0 1 11 0.00 0.0 29.410 36 3.6 4.2 8 33 0 19 20 14 -9 3 -5 -5 62 0 11 0.00 0.0 29.605 03 3.0 4. 1 8 35 2 20 21 16 -8 4 -4 3 61 0 11 0.00 0.0 29.620 3£, 2.0 2.3 7 34 10 9 21 22 24 11 18 11 14 47 0 1 11 0.06 1.9 29.710 35 2.6 2.9 8 36 10 10 22 23 25 5 15 8 19 50 0 1 14 0.67 6.5 29.540 10 0.4 4.3 10 17 10 7 23 24 5 -7 -1 -8 -6 66 0 19 0.00 0.0 29.870 05 2.0 2. 1 6 03 7 24 25 18 2 10 3 55 0 1 20 0.12 2.0 8 33 10 25 26 1 b -8 4 -3 4 61 0 1 21 T T 29.770 01 1 . 3 1 . 7 6 04 9 26 27 10 -10 0 -7 -6 65 0 21 0.00 0.0 29.850 36 4.5 5.4 9 35 0 27 28 q -10 :, -8 -6 66 0 20 0.00 0.0 29.750 01 10.5 10.9 18 3b 0 2 28 29 16 8 12 5 8 53 0 1 20 0.61 20.0 29.530 36 7.4 7. 9 1 7 02 10 10 29 30 29 1 b 23 16 20 42 0 1 40 0.30 6. 1 29.460 01 9.8 10.3 I 6 01 10 10 30 31 35 28 32 25 29 33 0 1 43 0.06 0. 7 29.460 36 7.3 7.5 12 3£, 1 0 31 SUM SUM TOTAL TOTAL NUMBER OF DAYS TOTAL TOTAL FOR THE MONTH: TOTAL % SUM SUM 667 211 1571 0 2.£>9 47.5 29.40001 4.5 5.5 21 02 fOR 238 AVG. AVG. AVG. OEP. AVG. OEP. OEP. PRECIPITATION OEP. -------OA IE: 3 POSSI8l( IIONTH AVG. AVG. 21.5 6.8 14.2 5.5 9.5 -174 0 ) . 01 INCH. 13 1. 28 7.7 NUMBER OF DAYS SEASON TO DATE ~NOW, ICE PELLETS GREATEST IN 24 HOURS AND OATES GREATEST DEPTH ON GROUND OF TOTAL TOTAL > 1. 0 INCH 7 MAX I MUM TEMP. MINIMUM TEMP. 4998 3 THUNDERSTORMS 0 PRECIPITATION SNOW, ICE PELLETS SNOW, ICE PELLETS OR ICE AND DATE > 70° < 320 ( 32° < oo OEP. OEP. HEAVY FOG 0 0.74 29-30 21.9 29-30 44 30 0 26 31 13 -305 3 CLEAR 6 PARTLY CLOUDY 4 CLOUDY 21 * EXTREME FOR THE MONTH -LAST OCCURRENCE IF MORE THAN ONE. T TRACE AMOUNT. +ALSO ON EARLIER OATEISJ. HEAVY FOG: VISIBILITY 1/4 MILE OR LESS. BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA. HOURS OF OPS. MAY BE REDUCED ON A VARIABLE SCHEDULE. DATA IN COLS b AND 12-15 ARE BASED ON 21 OR MORE OBSERVATIONS AT HOURLY INTERVALS. RESULTANT WINO IS THE VECTOR SUM OF WINO SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS. ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST MILE -HIGHEST RECORDED SPEED FOR WHICH A MILE OF WINO PASSES STATION !DIRECTION IN COMPASS POINTS!. FASTEST OBSERvFn nNF MJNUlc WINO-HIGHEST ONE MINUTE SPEED !DIRECTION IN TENS.OF DEGREES!. PEAK GUST-HIGHEST INSTANTANEOUS WINO SPEED lA 1 APPEARS IN THE OIRECTION·COLUMNI. ERRORS WILL BE CORRECTED AND NOTED IN SUBSEQUENT PUBLICATIONS. I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, AND IS COMPILED FROM RECORDS ON FILE AT THE NATIONAL CLIMATIC DATA CENTER, ASHEVILLE, NORTH CAROLINA, 28B01 5(~£)5/~ noaa NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL ENVIRONMENTAL SATELLITE, DATA AND I NFORMA Tl ON SERVICE NATIONAL CLIMATIC DATA CENTER ASHEVILLE NORTH CAROLINA DIRECTOR NATIONAL CLIMATIC DATA CENTER ( --- 1 i 1 /18' 1 1984 Location: Susitna River FREEZE-UP OBSERVATION at Gold Creek Air Tem~e 1ra tu re Water Water Water Current Min Max Temp Ice Level Velocity Shore Ice Date OF ~-~ ~ Cone Feet Ft[Sec Width (at edge} Snowfa II Weather 10/04/84 40 3'" .) 57 39.6 0 55.22 0 0 0 Clear & warm 10/05/84 35 2H 55 39.6 0 55.18 0 0 0 High overcast/calm 10/06/84 40 37 54 40.5 0 55.10 0 0 0 Partly cloudy/calm 10/07/84 43 3:1 52 40.5 0 55.04 0 0 0 Overcast/calm 10/08/84 43 3'' '· 51 40.1 0 55.04 0 0 0 Light ra i n/ca I m 10/09/84 40 3'' ;, 49 39.2 0 55.02 0 0 0 Pa rly cloudy/calm 10/10/84 30 2L~ 50 37.8 0 55.08 4.2 0 0 0 Clear/calm 10/11/84 32 2L~ 50 37.4 0 55.00 0 0 0 Partly cloudy w/fog 10/12/84 30 2rl 48 38.1 0 54.90 4.2 0 0 .!II Partly cloudy £. 4 (melting) 10/13/84 34 19 48 38.3 0 54.87 0 0 0 Partly cloudy/calm 10/14/84 35 2(1 41 36.5 0 54.60 3.8 Clear 10/15/84 0 0 0 0 Clear 10/16/84 19.0 19 35.2 40 54.37 0 0 0 High clouds 39.2 48 35.1 30 6" very thin 0 Clear w/wind 10/17/84 32.9 27 34.7 50 51.63 Clear/windy 36.9 48 34.7 30 51.62 47 11 1/8"-i" 0 C I ear/south wind 10/18/84 35.6 2lj 33.6 50 51.57 3.3 70 11 37.4 49 34.0 30 51.42 66 11 1/811 -2 11 0 C I ear/south wind 10/19/84 21.2 18 34.7 50 51.29 18 1 0 Clear/calm 34.7 38 33.8 60 51.29 (about 12 ft new shelf) Clear/calm 10/20/84 29.8 22 32. 1 45 51.27 High overcast 34.7 36 33.8 50 51.34 (water near shore) Overcast/north wind 10/21/84 34.7 31 34.7 40 51.49 shore ice cracked and Light snow 34.7 45 34.5 30 51.57 moved 2 1 out from bank High overcast 1984 (Continued) Location: Susitna River FREEZE-UP OBSERVATION at Gold Creek Air Tem12'arature Water Water Water Current Min Max Temp Ice Level Velocity Shore Ice Date or ~L ~ ~ Cone Feet Ftt::Sec Width {at edge} Snowfa II Weather 10/22/84 41.2 32 35.1 5 51.60 no shore ice 0 High overcast 37.4 50 35.2 0 51.70 no shore ice 0 Overcast/ I ight rain 10/23/84 33.8 32 34.2 0 51.77 2.9 no ice 0 Snowing 32.9 37 34.5 0 51.89 2" Clearing 10/24/84 30.2 :20 33.4 10 51.82 no ice 0 Clear/calm 35. 1 37 33.8 30 51.70 no ice 0 Clear/ I ight wind 10/25/85 33.3 :20 33.8 60 51.51 21 11 1/8"-!" 0 Clear/north wind 35.6 40 34.2 60 51.56 15 1 1/811 -2 11 0 Clear 10/26/84 -4 '14 34.2 50 51.01 3.6 0 Clear/10% clouds 38 34.2 50 50.80 15 1 2l" 0 Clearjcalm 10/27/84 14 8 34.0 60 50.61 15 1 3" 0 Clear/calm 23 32 33.4 50 51. 15 16 1 4" 0 Clear/calm 10/28/84 15 4 34.2 60 50.37 2.7 19 1 4" 0 Clear/windy 22 34 33.8 55 49.98 19.5 1 4" 0 Clear/wind 10/29/84 14 "14 33.4 55 50.15 21 1 4!" 0 Clear/light wind 22 27 33.4 55 49.85 21 1 4!" 0 Clear/calm 10/30/84 23 110 33.4 40 50.07 2 .. 6 21 1 4l"· 0 Clear/strong wind 24 26 33.4 40 50.15 10/31/84 22 £!0 33.8 40 50.08 21 1 5" 0 C I ea rjno rth wind 25 35 34.2 40 49.95 0 Clear/calm 11/01/84 18 8 34.2 50 49.70 . 3. 2 '21 1 4" 0 Clearjcalm 33 38 33.8 40 49.70 3. 1 0 Clear/calm 11/02/84 23 16 33.8 40 49.72 2.9 21 1 4" 0 Clear/ I ight wind 24 34 33.3 40 49.75 Cloudy 11/03/84 10 4 33.3 50 50.13 3. 1 21 1 7" 0 Clear/calm 24 30 32.9 35 50.09 0 Clear/calm 11/04/84 0 0 33. 1 60 50.20 22 1 7" 0 Clear/calm 14 24 33.4 55 50.38 0 High overcast 11/05/84 30 8 33.3 55 50.48 2.9 20 1 0 Light snow 30 36 33.3 30 50.60 breaking up t Snowing 1984 (Continued) Location: Susitna River FREEZE-UP OBSERVATION at Gold Creek Air Tem(;!e ra tu re water Water Water Current Min Max Temp Ice Level Velocity Shore Ice Date Of ~-~ ~ Cone Feet FtLSec Width {at edge} Snowfa I I Weather 11/06/84 24 2:~ 33.4 30 51.04 20 1 0 Cloudy/clear 34 33.4 30 Cloudy/calm 11/07/84 22 16 33. 1 20 50.98 20 1 0 c lea ring 25 28 33.3 15 50.96 0 Pa rt I y c I oudy 11/08/84 19 a 33.3 10 50.92 2.9 18 1 0 Partly cloudy 25 29 33.3 10 50.97 11/09/84 18 16 33.1 15 51.02 3.0 18 I 0 Part I y c I oudy 20 27 33.3 30 51.00 0 Clear/calm 11/10/84 2 -l· 33.3 60 50.95 3.1 24' 6" 0 Clear/calm 24 33.3 70 50.90 0 Clear 11/11/84 -2 -10 33.4 70 50.78 30' 8" 0 Clear/ I ight wind -4 3 33.4 70 50.78 0 Clear 11/12/84 -4 -10 33.4 80 50.53 2.7 31 1 6" 0 Clear/calm 8 12 33.4 70 50.60 0 Clear/calm 11/13/84 -2 -!I 33.3 65 50.77 2.9 31 1 0 Clear/calm 10 16 33.1 60 50.78 0 Pa rt I y c I oudy 11/14/84 8 '> 32. 1 75 50.60 2.7 32 1 8" 0 Cloudy/north wind .. 20 22 32.0 75 50.67 34 1 0 Very windy 11/15/84 28 1!1 65 50.70 2.7 36 1 0 High overcast 28 32 50 50.80 36' 0 High overcast 11/16/84 21 21 50 50.92 2.5 36' 8" 1i" Cloudy/calm 22 28 40 50.92 0 11/17/84 7 50 50.83 0 Cloudy/calm 20 27 50 50.90 0 11/18/84 25 6 40 50.95 37' 0 C I ear/windy 20 28 40 2.4 0 11/19/84 6 3 55 50.85 37' 8" 0 Clear/calm 20 32 50 50.97 2.6 0 ' ' 1/18 4 Air Current Date OF 11/20/84 30 30 11/21/84 34 30 11/22/84 15 20 11/23/84 15 18 11/24/84 10 20 11/25/84 10 10 11/26/84 0 0 11/27/84 10 18 11/28/84 18 20 11/29/84 18 19 11/30/84 16 20 12/01/84 17 25 12/02/84 20 30 12/03/84 34 43 12/04/84 34 30 r-- 1 TemQe ra tu re Min Max ~-~ 3 43 26 37 1 ;~ 22 10 18 -:~ 22 a 16 -~> 12 -ll 24 'I <. 23 1 'I <. 28 a 24 n 30 16 36 2lJ 43 2lj 42 - Water Temp Ice ~ Cone 50 40 25 20 10 10 20 20 30 30 30 25 40 50 55 60 32.1 50 32.1 50 32.1 40 32. 1 32.1 30 32. 1 25 32. 1 20 32. 1 10 32.1 10 32.1 10 32.1 5 32.1 5 32.1 0 32.1 0 1984 (Continued) Location: susitna River FREEZE-UP OBSERVATION at Gold Creek Water Water Level Velocity Shore Ice Feet FtLSec Width {at edge} Snowfa II Weather 51.10 37 1 8" Light snow 51.09 111 Rain 51.07 2.9 35 1 8" 0 Cloudy/calm 51.10 0 51.15 0 Cloudy/calm 51.15 0 Cloudy/calm 51. 11 35' 8" 0 Cloudy/calm 51.11 2.9 Snowing 51 .07 3n Snowing 51.07 3. 1 Snowing 51.22 2" Snowing 51.20 Light snow 51.18 2.9 .!.II High overcast 2 50.75 0 High overcast 50.80 0 overcast/fog 50.90 2.6 36' 8" 0 High overcast 51.05 0 Cloudy 51.00 2.4 0 51.03 0 Ove rca s t/W indy 51.07 2.5 37 1 8" Snowing 51.10 .!.II Light snow 2 51.15 2.7 Overcast/calm 51.17 40 1 0 Clearing/calm 51.20 2.5 All Snowing/calm 2 51.21 Breaking away High overcast 51.21 2.6 .!.II Light snow 2 51.25 Water near shore Overcast 51 .24 2.7 Overcast 51.24 Water near shelf Overcast 51.25 2.8 Fragmenting Overcast/fog r ~-----, 1984 (Continued} Location: Susitna River FREEZE-UP OBSERVATION at Gold Creek Air TemQe ra tu re Water Water Water Current Min Max Temp Ice Level Velocity Shore Ice Date OF -~_I_ ~ ~ Cone Feet · FtLSec Width {at edge} Snowfa II Weather 12/05/84 30 -~4 32. 1 0 51.25 0 36 36 32.1 0 51.25 2.9 Light rain 12/06/84 20 •~o 32.0 5 51.11 22 26 32.0 0 51.15 3.0 0 Overcast/calm 12/07/84 22 18 32. 1 0 51.19 3' ice near shore snowing 20 24 32.0 0 2.6 8' open water .!II Overcast/fog 2 15 1 floating ice 12/08/84 12/09/84 4 -1 32.0 20 51.17 2 3/411 Overcast 10 12 32.0 5 51.20 2.6 no change 0 Overcast 12/10/84 6 -13 32.0 30 51.22 2.5 0 Clear/north wind 10 14 35 0 Clear/calm 12/11/84 -4 -12 32.0 35 51.25 2.4 0 Clear/calm 0 4 32.0 0 Fog 12/12/84 -10 -16 32.0 50 51.32 0 2 2 32.1 50 51.40 1.5 0 Clear/windy 12/13/84 -1 -16 50 51.76 0 12 32.0 50 1.0 0 12/14/84 -18 0 Clear/calm 6 0 12/15/84 9 -4 32.1 54.35 shore ice I ifted ln High overcast 10 16 ice jam about 1.5 feet Snowing 12/16/84 10 6 18 ICE COVER 7 3/411 Overcast 12/17/84 20 18 20 ICE COVER 1" Snowing 12/18/84 20 14 25 ICE COVER 11 3/4" Snowing hard 12/19/84 ICE COVER 12/20/84 ICE COVER 1984 (Continued) Location: Susitna River FREEZE-UP OBSERVATION at Gold Creek Air Tem12e ra tu re Water Water Water Current MLn Max Temp Ice Level Velocity Shore Ice Date OF ~L ~ ~ Cone Feet FtLSec Width {at edge} snowfa I I Weather 12/21/84 0 -16 8 ICE COVER 0 c I ear/windy 12/22/84 25 16 28 ICE COVER 10i" Snowing/calm 12/23/84 25 18 28 ICE COVER 3" Snowing/calm 12/24/84 20 14 27 ICE COVER 0 Clearjca lm 12/25/84 20 20 32 ICE COVER 0 Clear/calm 12/26/84 -4 -10 20 ICE COVER 0 Clear/calm 12/27/84 -16 -20 -14 ICE COVER 0 Cloudy/calm 12/28/84 ICE COVER 7" Snowing S:J.OJd UO!pas SSOJ:) JiM!~ JaM01 ts6l 9 XION3dd\f 9L l£/£ llt\J M15/31 77 GLOSSARY OF ABBREVIATED TERMS ALCAP -2" Aluminum Cap set on a 5/8" rebar with cross-section identification marking. ANGL PT -Angle point in horizontal alignment marked by an alcap. BRK -Break in slope E VEG -Edge of vegetation GS -Ground shot on even slope POL -Point on line of horizontal alignment LB -Left Bank RB -Right Bank L EOW, R EOW -Left or right edge of water surface RIV BOT -Elevation in submerged channel TOE -Base of a slope TOP -Top of a slope NOTE: All tabulated cross section data begin at the ieft bank when viewed looking downstream, with the exception of CRX RM 9. 0 which begin on the right bank. i J Tt..l::: ~ .[DENT: Df.·iTE: SUSITNA HYDROGRAPHlC SURVEYS 1984 cro~s section LRXA9.0 f·ri.JGlJi.1T 1 (.: .. ·1 ?8 1 dECTJON: r. I l - t.o.if.~TER ~ [~:i'm OF DATf.:l l r, l [ L~ ·'t:·Y:·l< 'l ' ·)'~·~·)!: ---------·--·-·--·-·--·--·· ... -···· 2360 2460 2~7i60 2~i80 2600 2620 2640 2660 2680 2700 2720 2740 2760 2780 2800 2820 2840 2860 2880 2900 29~~0 2<?4 () 2960 2980 3000 3020 3040 3060 3080 3100 3'120 ~5140 3160 3180 3;?.00 3205 3200 ~.N\ ·X··X··): y ·Xo ·l'< .;;. ============ l~ I ~5 ·':) 1:!" ,",,I \J ':) ,_' 1 2. 1 1 .9 :l .6 '1 .3 0.9 0.0 -0.7 1 .4 1 .4 0.6 -0.6 -1 .4 -2.0 -3.0 -5.0 -5.0 -'7.0 -9.0 -1-.t .o -13.0 -16.5 -16.5 -16.5 -17.0 -19.0 -2'1 .o -2-4.0 -24.5 -1'7 I 5 -'11 .o -2.2 10.0 '.ll} • '.7 10.0 '~ ·)(-·)r( ·): ·X' DF.SCI~ I P T I ON ·l<·Jo:·:><:·:X:·X· ================~===~==== RFJ BOT 0 LEd lA.' iHV BOT R IIJ BOT RIV BOT RIV BC'IT Rl\.) BOT RIV BOT R IIJ BOT IUlJ BOT IUV BD''f' R It) BOT RIIJ BDT RIV BOT IHV BOT RIV BOT IUV BOT RIV BOT IUV BOT RIV BOT F~ I\,) BOT RIV BOT FUl) BOT R IlJ BOT IHV BO"f' RIV BOT RIIJ BOT RIV BOT IUV BOT RIV BOT ~~ Il,) BOT RIV BOT IH\,1 BOT RIV BOT IHV BOT REOW i~T TOP Bf.il'!~: H20 SURFt~CE .. ,.ITl ... E: T•Ei'H: Df.·,n::: .:>ECTJ:ON: I? J: SCHAI~ GF. SI.J~>JTI>!r;~ HYDROCRf~PHT.C SUR 1JEYS l984·r:ro~.s ~:..er:tion LRX 25.9 fiUGUST 15, 19'84 -r:·?:·~~ v ..... 'f:·Y.·->-~ ·Y:·Y:·~ y ·lt':·lt':·lc: --·-·--------==========~ ----·-··"-·· ... --.·~· ) 00 -co ~') d I 0 '140 ;?.Q 1::' ' .. .J '190 11 0:' '~· :215 1::"' co • .. II ....J 240 '6.5 265 -f) .8 290 0 .2 3:l5 f) ·'j • .r ... 31~0 4. 0 :~65 8.3 390 10 .6 440 14 ':) I '·• 490 14.8 5411 19.3 590 21 .7 641) 2-4 .6 740 ?7 .6 840 29.:2 940 ~~8 .7 :\040 30 1 1140 31 .9 1240 3;~. 8 1540 3-<~. 0 1971) 35~ 0 !.00 -C' .. "':t .. :J. 0 19'?0 35. 0 82,200 ***** DESCRIPTION ***** ========================= I.. Em~ I~ I l.J BOT RIV BOT F~ I\} 'f.lOT RIV BOT RII.J BOT RIV BOT Ril.) BOT RIV BOT RII.J BOT RIV BOT IUl) BOT RIV BOT iUV BOT RIV BOT RIV BOT !~IV BOT 1~ I l) BOT RIV BOT RIV BDT RIV BOT I~IV BOT RIV BOT R EOVJ H2 0 SURF r~CE Note: This data was compiled frcm U.S.G.S. streamgaging measurement field notes. All "y" values a.re soundings, "x" values are estimated distances. This cross section uses a datum estimated from a U.S.G.S. topographic map. -l - r~***************************** CROSS-SECTION PL.OT ****************************** ['('1'1''·1~ _ ...•• I'{ I L .. Lr 0\:",S [~ l ':) '·· ~:3 4 l ~ ·~ ,,, 6 '7 [ ~ 8 9 "".l 0 1 1 [ '.\ ,?. "L5 14 [ 15 16 1'7 L 18 19 20 _21 ~ 22 ':)-" ~ '-·~ 24 l ~ ::>c~ ,_ .. J ~26 27 ~ ~28 :2<;> --30 l_31 ~5~~ _)33 ••,-A .:)·'-:- l~35 ~36 3'7 l <38 ·~c) .. :) ,· '""40 ~ 4 'l Ll.j;? ,A"? .... ) 44 L45 ser:tion SUSJ:TNF4 HYDROGRf~PHIC Sl.II~VEYS 'l9B4 r:ro~.s Sf:H:t:i.on !...RX 40.0 D~te of Surueu: SEPTEMBER 21. 1984 ~ y I DESCRIPTIOf\! dirtta: 0.000 80.900 f':d •• U~P L.t<x 19.000 71.200 TOE 40.0QO 70.500 BRI< 75.000 71. ".l 0 0 BFll< 151.000 69.300 1.. Em~ 176.000 68.800 R II..' BOT 195.000 68.500 IUV BOT 216.000 68.000 RIIJ BOT 2~59. 0 0 0 66.200 RilJ BOT 274.000 66.400 lUI) BOT 284.000 67.800 R :f.I.J BOT 296.000 69.300 R EOW 304.000 71.800 TOE :314.000 80.900 TOP 317. Ot\() 81.500 C:.1 j\l r,; 1 ... PT 'l 398.040 80.300 G~l •.. 84'1.040 81.400 TOP 861.000 76.700 TOE 904.000 75.000 GS 969.000 75.600 TOE 990.000 78.700 TOP 999.000 79.200 Bl~l< 102'1.000 77.000 TOP 1044.000 73.000 TOE 1'131.000' 72.200 BRI< 1162.000 70.600 TOE '1 189 . 0 0 "0 77.800 TOP 120'1.040 77.700 Ai,!GL PT ·':) .· ... 1208.000 76.700 TOP L~27. 0 0 0 72. ~~00 TOE 1240.000 72.000 TDE 1248.000 74.700 TOP '1323.000 74.600 BI~K "i 43~t. 0 u 0 73.000 GS 1511.380 72.600 TOP 1536.000 69.900 ! ... EOvJ 15t.t8. 000 6'?.900 R I 1·.) BOT 1564.000 64.000 I~ I 1.) BOT 1610.000 58.800 R II....J BOT 1680.000 53.900 R n; ",,. ... BOT '1'?70.000 54.500 R JI.J BOT 18L?.. 000 55.000 R II,.! BOT H~70. 000 60.000 ~~ :t: l.) BOT 1923.000 60.000 RIV BOT 1958.000 61.000 I~ ]:I.) BOT ~/I'\ 4o 1-/3 (. 6t? ~~010.000 2060.000 ~~"1 06. 0·0 0 2156.000 ;~208.000 2253. 0 0 0 2:33'7. 000 2430.000 2~506.000 2593.9!30 26T3.000 2764.000 2790.000 2806.000 2839.000 2849.000 286:3. 0 0 0 2882. 0 0 0 2891.000 2903.000 29l'7.000 2922.450 [J,:l t er s u r·f <il c e d...,1 ta: 151.000 296.000 1536.000 1536.000 2253.000 ::~790. 000 2790.000 2891.000 'l [ ' :.?. ::; -4 5 L; 8 L i"'IN ['f-lAX t<i<:tX:iMUM fl'jaXi.MUM L L L L L L 'X' 'y I 0.000 2922.450 scale l" ... 4"17 62.900 63.900 64.800 66.800 68 . .<.)(10 69.900 '72. 300 74.300 74.900 75.000 73.600 71 .500 69.000 67.100 61.000 60.900 62.600 67.000 69.000 72.200 84.300 85.800 69.300 69.:300 0.000 69.900 69.900 0.000 69.000 69.000 53.900 85.800 RIV BOT RIV BOT I~ IV BOT R :f.t) BOT R H,.t BOT I~ F.:DW G(' ;:) GS C'C' ') ~.) r:~NGI... PT 3 GS TOP t. EO!,~ RJ:V BOT RIV BOT RitJ BOT RIV BOT R I~J BOT R EOW TOE TOP AL.Cr~P Lfl.x R'"' l..fo R.tl L. EOW ~~ EmJ 1.. EOl ... J I~ EOW L. EOW R Em~ (for 8.5 bu 11 forMat) (for 8.5 bu 11 forMat) "TTl .. [: < :C·EHT ~ I)tYfF.: ::)ECT I ON:. Sl..J':) I TN1:, HY:Ot~OCH 1:1p H J C Sl.l!~ 1)E"·{~3 1984 ~ross SR~tion LRX 47.9 SEPTF.:l"iBF.R ·t9. 1984 -.. ··-------·--.. --. _.,. .. _ .............. --... -... ·~--· 00 03 06.7 1l"?. 17 49 1 0 l 161 214 :269 321 367 4"16 458 482 500 513 553 '578 ;:'j9!5 601 64l 660 693 712 7~~3 805 866 892 914 992 100'7 1042 "1080 1 'l 0 1 113"1. 1145 1192 1218 1237 1256 1;.?.?:3 l2fH3 "1:30:?. 1::1~n 1357 12\76 L;99 it~:; 1 :\483 t53t "1560 __ .. ________ , .. _ ------·-·-·---- 113.9 113. :·3 )08.;?. 104.3 102.2 98.9 96.6 97.5 !.0"1.9 102.7 100.7 101.3 100.5 "100.4 J00.6 104.1 1.06.7 "108.2 108.8 108.5 107.9 10'7.0 J09.6 110.5 108.7 108.8 106.8 108.3 J09.2 109.6 108.7 106.4 'j 05.7 10.S.O 108.2 "108.2 108.0 107.0 J06.0 104.2 J.03.6 1 o:·5. 9 104.4 108.9 lO<t.O 106.9 JOb.-:5 107.0 J 05' 1 104.8 104.9 10-4.:?. -t ·-· ***** DESCRIPTION ***** -----------------------------------------------·--- ALCAP lRX RM 47.9 ~8 TOP TOE i... ED~.J RI~) BOT HII) BOT RIV BOT !Ul) BOT RIV BOT IUV BOT RIV BOT IUV BOT RIV BOT IUI.J BOT R IlJ BOT I~ ED!,J TOP POL BRK HI~ I< BRI< .. fOE TOP TOP TOE Bl~l< BR1< TOE TOP TOP TOE GS TOE TOP POL. BRK BIH; TOP BRI< BRK BI~K TOE TOP TOP HH I< TOE Bl~ I< ·.81~K POL.fi,GE L EOI..J RIV Bo·r 1 ~585 !"04.2 RIV BOT 1604 104.7 I~ IV BO''i' u,;?.t •j 03. 9 RIV BOT 1644 103.6 R I IJ BOT '16(-:.8 'J O;~. 8 RIV BOT 'l 7~?. i) 102.8 IHlJ BOT 17:19 103.7 RIV BOT 1760 104.? R ED\,J 1'791 'J.06.0 GS 1836 '1 0'7 . .q BF:K 1 t176 ') 06.9 BRK 1908 107.3 B~~ I< 1974 !.06.3 TOE '1989 108.2 TOP 2033 '108.5 POL f..., E tJEG 2'103 109.8 TOE 2 '1 'f (.., j 12.6 BRK 2122 113.5 TOP&E !JEG 4:521.7 111.7 REBAR 43;?.8 111 .:3 TOP 4333 107.2 TOE 4163 108.3 B~1K 4366 109.3 BRI< 4375 108 ''7 BRI< 4379 'j 08.0 BRK 4394 "l 08. ··~ TOE 4403 109.8 TOP 4428 '11 f). 3 HRI< 445~'5 '109.2 TOP 4467 '1 0 ~3' '1. TOE r---:: 448f~ !07.3 TOE 4504 '1 09.3 TOP 4534 109.1 TOP r ~ 4550 106.5 L. EO\IJ I 4559 'J 04.5 RIV BOT 4563 103.8 R IV BOT 4581 '1.03.7 RIV BOT 4586 106.5 l;l EOW l " 4591. 1'11 .8 TOP 459'? 11 L b POl ... ("~'' :J·==> r. 46;~4 112. 1 GS 4'709 '1 '.l l .8 ANG PT 1 472:5 111.5 TOP I. 4726 108.8 1... EOI!j 473'1 !.06.5 RIV BOT ; . 4748 104.0 IU 1) BOT ~-4759 1.08.6 R EDW i 479'1 :t 09. l GS 4804 109.0 L EOW .rf8:33 106 . ".l RIV BOT l. 4853 105.0 RIV BOT 4886 10:\ .4 IHV BOT 490!5 99.1 RPJ BOT l 4941) 107.9 lUI.) BOT ·~98 {1 JOB.3 R :f.lJ l~OT ~iO '14 '10'.7.8 i~H! BOT l~ 50~~8 106.'7 R It.) HOT !5069 1 0 l .8 I~ I 1·.) BOT 5088 103.8 fUV BOT 5105 107.3 lHV BOT r L. -·':) ,_ ·- :; 11 0 109.3 R EOW 5114 :l1'l. 4 TOP 5'119.3 l11. 8 RE'Br::IR 8169.3 112.4 I~ EB?'~F~ 81:76 1'11.?. TOP f·f! B5 105.7 L EOl...J 8190 103.7 R ItJ BOT 82'15 1 01~. 1 IUV BOT 8235 102.2 RIV BOT 8257 1 01 .0 RIV BOT 8273 100.5 RIV BOT 8291 102.3 RIV BOT 8304 '1.03.6 RIV BOT 8309 105.3 IUV IWT 8327 105.6 R EDW 8350 106.8 BRI< 8415 109.2 BRK 8475 108.8 TOP 8482 1 0'7. 3 TOE 8521 105.7 TOE 8535 1'11.5 TOP 85-42.8 '111.4 I~EBF1l~ 9842.8 lll. 9 REBr~l~ 9845 111.4 TOP 9852 J.08.7 TOE 9871 109.9 Bl~l< 989'7 ')06.2 BRK 9921) 106.7 TOP 9938 J04.0 L EDW .9945 101.3 RIV BOT 9978 l01.':i RIV BOT 1 OOL':5 102.4 IHV BOT 10045 102.2 RIV BOT 10087 102. 1 RIV BOT 10146 102.8 RIV BOT '10174 103.3 RilJ BOT 10l99 103.3 R It.) BOT 10209 '103.9 R EOW 1 o;?.25 105.2 TOP 1 0:?.97 105.5 GB 10:--570 J06.1 BRK 10431 105.3 G< .. ,:) 1 0 '+ 73 1.04.8 TOP '10481 103.3 L EOW '10509 102.7 RJ:lJ BOT L _, 10537 102.8 RII) BOT 1 05~54 J 01 . 9 RIV BOT l0573 102.8 IHV BOT L_-10637 J 03. 1 RIV BOT tu693 1 0 I . 8 I;Ll:i.,! BOT r . 107;?.5 100.9 RIV BOT 10'763 100.1 !Hl.) BOT 10809 9~> I 5 RIV BOT r. '10866 99.6 IUI.J BOT i '10928 99.4 RIV BOT 11007 100.1 RitJ BOT 1 1 0 6~3 99.7 RIV BOT I '11'1 08 98.8 R I l) BOT L~ '11'!.59 96.8 R:r.v BOT l1l B8 98.4 RIV BOT r -3 "" 11197 J 01. 1 RIV BOT '112.10 10?..5 R EOI..·J 112;~7 '!05.0 TOP '1:\2.83.6 108.0 (..)NGL. PT.::~ 11:542 107.8 GS '11411 '.l08.5 BRJ< 11447 107.2 BRi< '11509 108.2 I~ I~ I< 115!55 106.8 BRK 1 '1604 105.8 BRI< '1 162;~ 1 0'7. 2 BRK 11662 106.7 I{ I~ I< "1'1748 107.4 BRI< 11826 108.8 TOP 11840 105.2 TOE 11900 105.4 Gc:' d 119~':.3 105.4 TOE '1196;2 107.7 TOP 120:-~9 107.6 GS L2112 106.5 Br~K 12138 104.5 BRK 12172. 105.6 BRI< 12178 103.4 BRK L~199 '1 03. 1 TOE 12208 110.8 TOP 122.20.2 110.3 r:1LCI~P I...R >.: ~~ l>i ·4'.~"/ I 9 Rl!. li·':-tTF.R ~ ).2 104.3 L EOIJ.J 500 104 I:! R EQl,J p:.:31 (1 1531 Ul4.9 L EOW '1760 104.'7 r.~ EOvJ ·~5~i0 0 4550 106.5 L EOW 4586 106.5 R EOvJ 4726 0 1+726 108.8 L EOI..tl 4'?59 108.6 ~~ EQl,J 4804 (1 480!.1, 109.0 L EOI..J ~'511 () 109.3 ~~ ED~I 81 B~5 0 8185 105.7 L EOW 8:32'? 105.6 ~~ EOW 9938 (1 9938 104.0 L EDI.Al '10209 '103.9 R EOi,J 1048'1 0 10481 103.4 L. EDW l12'i 0 102. '5 i< EiJW . ~i~D OF nt-. r r"~ ·-4 - ****************************** CROSS-SECTION PLOT ****************************** -·-· ... .... r .. os~s ~:H~c t j, on '1 ·';) '-· ~3 .~l -s 6 7 0 8 9 . ~ 1 0 11 '12 1 .... -----. \~ 14 ·--~ 1 :; 16 1 '7 . -~ '18 '19 ~' 2 0 2'1 •",)·':) .......... --,23 24 ' -':)1::0 ,:., .... J 26 2'7 28 29 ~ '30 l ~ 31 ·~'",) ,:}/ .. r~33 1 34 '~35 :~6 l ' 37 "313 ""Q .. ;) ' r , 4 f) L~ 4'1 4;.~ r -43 l 44 .c 4"~ .... J [ L SIJS :r. TN(~ HYDI~ DGR f.~P HI C f-)UI~ !.JEY S l9~H c:ross r:;.ect:i.on LRX 5<?,'7 Dat8 of Survev: SEPTEMBER 25. 1984 ~X .. DE:;r.:R I P T I DN d.nt<:t: 0.000 1~'52.000 ?~L.C1~1P LJQ..x 12.000 '150.50f) TOP 17.000 146.300 TOE 28.000 144.800 BRI< 45.000 146.500 BRI< 59.000 145.600· !... EmJ 71.000 144.000 R:tV BOT 94.000 138.600 F~ I t,,i BOT 126.000 137.200 RIV BOT 167.000 137.000 RIV BOT 215.000 '137.000 IUV BOT 261.000 1:38.:30() R I\) BOT 312.000 141.700 R:t:V BOT 350.000 139.700 RI\,t BOT 378.000 139.300 R J.t.) BOT 422.000 '1:38.400 R II,} BOT 472.000 137.300 IUV BOT 512.000 139.200 lUI.) BOT· 545.000 143.400 R It) BOT 557.000 145.100 RIV BOT 565.000 145.600 R EOW 597.000 147.800 BI~K 649.000 149.600 BRK 684.000 148.800 B!~l< 696.000 '147.500 I~RK 721.000 148.200 TOE 731.000 119.400 BI~K 736.000 150.100 TOP 736.990 150.500 (4NGI... PT l 7·41.000 150.400 TOP 744.000 147.300 TOE 750.000 148.800 TOP 808.000 "148 . 1 0 () (7.;8 8·47. 0 0 0 146.800 BRI< 88~~. 000 '147.700 BRI< 934.000 '.i 48. () 0 0 Bl~ t< 1004.000 .148. 1 0 0 l~RK 1058.000 149.900 BHI< 1098.(10() "149.600 TOP '1117.000 147.400 1. .. ECJ!,.J ll27.000 '145.800 R Jl.) BOT '1 '1 :38. 0 0 0 '.\44.900 p ~:I '· J. v BDT 1154.000 145.400 R PJ BOT 1182.000 146.700 1nv BOT '1231 .000 146.900 R :u..J BOT JQ/YI. $"«?. 7 l../3 46 1:?.74.000 147.·400 ~~ EO I# 4'7 1304.000 147.700 BI~K . ~~8 "1:308.000 145.700 BRI< 49 1323.000 143.700 TOE ~so 1 ~534. 0 0 0 146. 1 0 0 TOP ~:51 1344.000 149.400 BRI< -c:-":) \,}I .... 1449.000 148.800 GS ,-·-~ :J~'l 1544.000 147.800 BRK 1:!"(.\ ~-·' 'i 1!575.000 146.000 BRK 55 16;~6 . 0 () 0 147.900 BI~K !56 1689.000 :!46.900 G'"' -~) 57 1748.000 '146.100 TOE 58 1756.000 150.400 TOP 59 1764.9t>O 150.500 POL ... 60 1789.000 150.:300 TOP 6'1 1800.000 149.400 BRK 62 1804.000 148.000 TOE . -.6~ 1835.000 147.300 TOP I 64 1842.000 145.200 TOE I ' ~ b~:j 1876.000 148.100 TOP 66 :l944. 000 14'7,700 GS r··67 2049.000 '148.300 TOP l.68 2072.000 145.100 L. EDl·J 69 2085.000 144.100 R I'·J BOT r ·7o 2095.000 144.300 R :£1) BOT I 71_ 2097.000 145.100 R EOlAI I~'""':) I; ... 2"110.000 145.400 GS r, ~~ 21.23.000 145.600 L EOW 2'135.000 145.000 I~ I I) BOT l --~ c:· I · .. 1 2150.000 145.600 ~~ EOW '76 2177.000 146.700 GS ['T~ 2198.000 146.300 BHK ' I .. 78 2261.000 147.300 GS 79 2354.000 149.100 GS [-~~ 2443.000 148.300 BRK 2480.000 149.300 HRK ·82 254'1.000 148.700 GS .. 83 2586.600 "148. '70 () ,{~NGL PT 2 l 84 2614.000 145.000 TOE ~ 8~5 266'1.000 "144.200 f-!RK 86 2698.000 145.300 Bl~l< [ -(~7 2T39. 000 144.800 L EOW L .88 2762.000 143.500 RIV BOT 89 ~n96.ooo '143.300 RJ.V BOT [ ·90 2842.000 143.000 IHV BOT 91 2895.000 142.800 RJ:V BOT ~Q':) 2920.000 142.500 RP.J BOT ~ 1 .... [,93' 293'1 .000 144.800 R EOIJJ 9-4 2944.000 150.400 TOP ·<?5 2993.000 '150.200 BRK , ... ' 3023.000 151.300 BHi< 7!:> [ -97 3078.000 151.100 GS .98 3126.000 15'1. 000 GS 99 ::5169.000 150.800 TOP [ -1 0 0 3182.000 '148.400 TOE . 1 0 l 3195.000 148.700 TO I~ ~'l o;.~ 3201.000 15'1.~j0Q TOP LlO:.~ 321.9.790 151.300 POL. '1 0 4 327('). f) f) 0 '151.'100 G~S 105 3~326. 0 0 0 150.800 :tH~K l_ '.l06 3398.000 149.700 TClP 10'7 3407.000 147.400 TOE ' l (} 8 343:\ '0 0 0 "146.000 GS '109 '3470.000 146.600 TOE -, l1 0 3477.000 149.800 TOP 'l 1 1. 3~336' 0 0 0 "150.700 GS 1 l ;,~ 3568.000 '150.1:}00 Bi~ I< ~ l '13 3588.000 149.900 I~R I< 1 '14 3599.340 150.900 POL. . .ll5 3610.000 149.900 TOP '1 '16 3619.000 146.700 TDE 117 3640.000 147.800 Bl~l< -118 3~)62. 0 0 0 146.100 !... EOI,J 1 '19 3681.000 143.700 RIV BOT '120 3691.000 142.300 RIV BOT 121 3743.000 143.500 R :t '·J BOT 122 3789.000 '143.000 RIV BOT '123 3839.000 142.900 RIV BOT l24 3889.000 140.000 RIV BOT . 12;) 3937.000 138.600 RIV BOT 126 3983.000 136.700 IUIJ BOT '127 4031.000 '137.100 RJ.V BOT '128 4064.000 139.800 RII) BOT 129 4092.000 143.600 IH'v' BOT '130 4095.000 146.100 R EOW 131 4'104.000 '152.500 TOP 13:~ 4'114.950 153.100 ANGL PT :s '133 4172.000 151.900 TOP !.34 4191.000 149.700 TOE ,> 135 4203.250 149.900 POL. 136 4218.000 149.000 TOP 13'7 4;~24. o on 147.200 TOE 'l38 4240.000 148.900 TOP 139 4266.000 148.300 TOP '140 4276.000 145.700 TOP 141 4291.000 144.500 Bl~l( '!42 4311.000 146.400 TOE ,'14:3 4321.000 149.000 TOP 144 4373.000 149.800 BRI< ' 1 <t!:'.i 4384.000 148.000 Bl~l< 146 4405.000 150.000 BRI< 147 4455.900 149.600 c;s ~ 'i 48 4527.000 '148.800 Bl~l< 14<7' 4577.000 148.600 BRI< '150 4614.000 146.900 BRI< 1 !51 4631.000 148.500 P.RK '.l:::i2 4673.000 148.200 BR!< _, 153 4690.000 150.500 TOP 154 4749.000 145.600 TOE -155 4'779.000 144.600 BRl< 156 4827.000 'i47.'i00 BF~ i{ 157 4871.000 147.300 TOP ~158 ·4887. 0 0 0 143.700 TOE 15<1 4927.000 144.000 TOE '160 4942.000 147.000 TDP 16'J. ;::i038.000 '14'7.200 r;;~-3 '.\ r.,;?, 5103.000 147.400 TCJP '163 5121.000 146.100 1 .. FOl..J 1114 5'135.000 144.400 p '"II 'l" !.:lOT -~16'5 5'156.000 144.400 lUtJ BOT ~ 166 5190.000 167 5221.000 '168 5248.000 ·u':!<;;o 5261.000 ·--, 17 () 5269.000 1'71 ~5278. 720 1 7~?. 5377. 170 1 ~··--~ / .,") 539~3. 0 0 0 1'74 5398.000 ' 17~5 54;?.3. 0 () 0 ''176 5488.000 ll7'? 55'74. 000 -'178 5578.000 179 5591. 6~50 -. 1 BO 5663.000 181 5675.000 '182 5714.000 -1 B3 5744.020 '18.f~ 5752.000 '18!5 5755.000 186 5824.000 18'7 5851.000 -'188 5877.000 189 5898.000 '190 5929.000 19 ') 5961.000 192 5978.000 193 5995.000 '.l94 6007.000 ·''195 6011.000 '196 6020.000 197 6030.000 -198 6048.290 ater surfac(~ da t<<l: l 59.000 2 565.000 ·3 '1117.000 4 1117.000 . -'1::· ,J 1274.000 6 2072.000 7 2072.000 j8 2097.000 9 2'123.000 '1 0 2123.000 l"l ;?.'!50.000 '12 2739.000 .. 1 ::5 2739.000 14 2931 . 0 0 0 15 3662.000 16 3662.000 r ~ '1 t--; 4095.000 i l-18 5'12'1. 000 1 ~;> 5'121. 000 1 ~ 20 5;~69.000 I .2'1 5877.000 L- ~.~ ;~~ 5B77.000 " -;::! :~) 6007.000 l ~ I I l' '!43.600 142.400 143.'100 143.800 146.100 151.300 151.400 149.500 146.900 145.500 '146.300 147.200 149.000 150.000 150.200 '147.200 150.700 150.500 149.100 146. 10 0 144.300 144.000 144.500 143.500 143.000 142.700 143.800 143.200 144.500 146.500 147.300 15'1.600 152.300 145.600 145.600 0.000 147.400 147.400 0.000 145.'100 1-45.'10·0 0. 0 0 0 145.600 145.600 0.000 144.800 :l44.800 0.000 146.100 146. 10 0 0.000 146. 'l 00 '.(46.'100 0.000 144.500 '144.500 I~ IV BOT RIV BOT I~ IV BOT RIV BOT I~ EOW POL. E VEG TOP POL. E I.,IEG TOP f{R I< TOE r"'RI< (''("· .-, ... 1 TOE TOP TOP F.. VEG TOP TOE TOP f.~NGI... P T 4 BRK TOE BRI< Bl~l< 1... EmJ R IIJ BOT RIV BOT RIV BOT R IlJ BOT RJ:V BOT R EOW BRI< BRI< TOP M .. Cf.:lp Lf{X: IVVI. SCJ./ ~d L FOI..J I~ ECH~ !... EO~J R EOW L EOJ,.J ~~ EOl,J L. EOl,J R FOW L. EOW R ECH·J i... EDl,j I~ EOW L. EDW ~~ EClltJ L. 1:. o vJ !~ EDW ·MIH i•lAX 0.000 6048.?90 MaxiMUM 'X' scale ~axiMUM 'Y' scale 1 11 ••• 864 "111 ... 3 r. r I l. L 136.700 153 . l 0 (} (for 8.~ bu 11 forMat) (for 8.5 bu 11 forMat) t***************************** CROSS-SECTION PLOT ****************************** .~'OINT - Cr-(l~'·S ~r,P.c t ion 't •':) ·'-· >::5 , .. -4 t::~ •..J "h '7 ~. B 9 1.0 . ' 1 1 L~ '" 13 :1. ~~ i-1 !:;,i ! I "16 '1 :7 1 · 18 ~ > 19 20 '. ::> 1 I ·-! ':)':) ! !,,.1. ... l_-tj- '-· ~'! 2-4 r >jo::· i-~ ~-> 26 27 r-·':)a ,_. I 2'1 l > 30 ··::51 l '7. ';) ·=> ~ ..• --· ·-~ -·f ,!),;') :34 l-3~j ~36 3'7 .. :.~; l'-'8 ~~>, 40 Al l <1? --~43 -4~~ l_45 SUSITNA HYDROGRAPHIC SURVEYS 1984 cro~1~. Sf.~ction LPX 76.!3 Datm of Surueu: SEPTEMBER 20. 1984 \ y I :OESCR I P T I CH'-l rlata: fi.OOO 24;~.000 c:~I .. Cr~P '-.;<(.')( 51000 240.'.700 BRK 7.000 238.600 TOE 43~000 237. '700 GS 62.000 236.900 BRI< 67.000 235.700 1.. EOW 76~000 233.000 IHV BOT 94.000 2301000 I~ !IJ BOT 141.0(l() 226.400 IU'·J BOT 1851000 226.700 IHV HOT 231.000 :.?27 I 90 0 R J:l..J BOT 250.000 228.400 RIV BOT 294.000 228.000 IH'J BOT 346.000 22'7. 700 ~~ I' .. .J BOT 398.000 228.000 I~ IV BOT 451.000 2281500 IUV BOT 495.000 2261100 R ItJ BOT 548.000 2?.9.000 RIV BOT 598.000 ;~31. 200 R J.\.l BOT 651.000 232.700 l~ IV BOT 688.000 234.100 RIV· BOT 713~000 2:34.60 0 ~~ I\.) BOT 746.000 235.700 R EOW 812.000 237.500 GS 862.000 238.400 BRl< 879.000 237.500 BF~ !{ 940.000 237.500 BRI< 9901100 240.200 POL 1049.000 241.000 GS 1123~000 241.000 (;~3 1209.000 2401500 [;~3 1312~000 240.000 GS 13961000 238.900 TOP 14211000 237.600 TOE 1442.000 237.600 HRl< 1461 '000 237.700 BRI< 'll~ 73 . 0 () () ;?.36. 700 BRI< '1508.000 237.500 TOE l.~H9.000 239.400 TDP '1553.000 2391300 Bl~ !< 1570.000 :?.37 '70 0 Bl~l< 1632.000 238.200 Bl~ I( 1685.000 27'58. 90 0 BRI< '1716.000 238.100 B~: I( '1798 I 0 0 0 2.39 I 50() J:{RI< JQ/\o'\. 7{,. $ 1...13 ll6 1870.000 238.800 GS 4'7 1892.000 237.900. BRI< -~ 48 1937.000 237.500 GS 49 200:~.000 ::?38. 50 0 TOE 50 2019.000 241.400 TOP -~ 51 2056.?.00 241.900 POL 52 2101.000 ~~41.900 BRI< ~53 21"11.000 240.800 TO I;) 54 2125.000 236.300 !... EQi_,J 55 2"14~~.000 235.000 RIV BOT . 56 2152.000 235.900 ruv BOT 57 ~~ 175' 0 0 0 235. 1 0 0 R :r.l.) BOT 58 2197.000 23~5. 90 0 IU!J BOT 59 2232.000 233.600 R II..,! BOT 60 2264.000 235.700 IUIJ BOT . 61 2304.000 235.000 ~~I 1..) BOT 62 23:50.000 :234.500 R Il.J BOT •63 2369.0 0 0 234.800 RIV BOT 6-4 2389.000 235.700 Ril) BOT 65 2392.000 236.300 R EOW .66 2-424.000 237.800 GS t J""'' :>/ 2501.000 237.600 GS .• 68 2596.000 238.800 BRI< 69 2689.000 239.000 GS 70 2754.000 239.500 TOP ~7'1 ;.~?69.000 237.000 L. EOW 7"-> • c .• 2784.000 :~3~.5. 90 0 IUV BOT . T!\ 2804.000 236.500 IHlJ BOT 74 2822.000 235.800 ~~ I\.) BOT 7!5 2837.0 00 ;?.36 '600 I~ IV BDT .. o 76 2860.000 236.500 IHV BOT 77 2869.000 237.000 ~~ E:Ol...J -78 2911.000 238.400 TOP 79 2948.000 237.200 TOP 80 2987.000 235.700 !... EOIJJ . 81 298'7. 0 0 0 235.000 FUV BOT 8;~ 3013.000 233.320 RHJ BCJT ~ 8:2) 3027.000 234.000 RJ:V BOT 84 3033.000 ~~35' 700 R EO~I s~:; 3040.000 238.800 BI~K .86 3047.000 244.300 TOP H'? 3048.300 ;:~44. 60 0 r-~NGL. PT 1 '88 :3i~13.300 ;.~42' 500 GS 89 3248.000 242.600 TOE 90 3258.000 245.800 TOP ~9'1 3371.300 241.800 TOP 92 3376.000 240.300 TOE '9::) 3382.000 241.700 TOP o.~ "l'~"l'L "l'nn '"\A-"\ r:o n l\ ,.,.,... .r-'J ~;J WW'O ' <1 \J U <7.'"1r:;; , ,J IJ U •. , ::> '15 3701.300 241.700 GS -96 3866.300 243.500 GS ~~7 ::->94'!. .300 243.900 TOP '98 3946.000 239.100 BPI< '?9 3949.000 23'7. 30 () 1.. E:DW 100 3958.000 235.000 Ril.) BOT . "'l 0 l 397'7. 0 0 0 234.900 IUV BOT '102 3999.000 236.700 RH! BOT •• J '.l (I:~ 4008.000 237.300 I~ EOW 1 04 4014.000 237.400 GS 1 0 ~:; 4025.000 237.000 L EOW :l 06 4037.000 236.400 IUV BOT 1 0'7 4054.000 237.000 R EDI..J 108 4083.000 239' ::50 0 Bl~l< 1 0 <? 4106.300 239.900 C~S LlO ·1.1174.000 240.300 Bl~l< ~ 111 4;~71 '30 0 238.800 G~:l 1 '1 ~~ 4?.79.000 :238' 700 L. EOH ·-11 :5 4295.000 238.300 ~~It) BOT ~~ '114 <l309.000 2:";4 '80 0 IUlJ BOT 11 ~j <'~326. 0 00 234.900 ~~ J: v BOT '116 4344.000 238' '700 p EOW 117 4376.000 Z~40.100 GS ~ '118 4417.300 241.200 F VEG 119 •l582 '30 0 242.600 GS 120 4747.300 242.700 f'<:' .:J ,,) . 121 491.2.300 242.300 GS 122 5077.300 241.700 GS -123 5215.000 242.600 TOP 124 5229.000 240.200 BRI< 12~; 5241.300 238.000 TOE ·-126 5252.000 238.700 TOE 127 5259.000 242.100 TOP . 128 5339.300 241.500 ANGL PT ~::. '"' 129 5353' 000 237.800 1... F.: OW 130 5359.000 235.800 ~~ IlJ BOT . 1 ~5'1 5375.000 235.500 I~ IV BOT '1:32 5392.000 235.000 RH.J BOT -13~3 5411 '000 235.100 R I\.l BOT 13-4 5435.000 234.800 ruv BOT . 13~5 5445.000 2;34' 60 0 R J: t; BOT -136 5452.000 237.800 R EOW 13'7 5462.850 244.300 ALCAP L-1/..")( fl./V\ ')G. 8 ~13 )at er stJrface d<'l ta: 1 67.000 235.700 L EOW ·2 746.000 235.700 R EOI.,J 3 2125.000 0.000 '4 2125.000 236.300 l.. EO~·.I .,. -~J :239:2.000 236.300 R EOW 6 2769.000 0.000 -'? 2769.000 237.000 L EmJ !3 2869.000 237.000 1:~ EOlJ.J . <t 2987.000 0.000 :l 0 2987.000 2:35.700 1... EDl·J '1'1 3033.000 235.700 R EOI.>i ''12 3949.000 0.000 1 ::" 3949.000 237.300 L. EOW -14 4008.000 237.300 R EOl.·J • 1::" ·'" " ,., 1::" I\ 1\ 1\ n n 1\,... -.L ... 1 "'~ u (.: . ._, • u \J \} u. u 1,1 u 16 4025.000 2:'57' 0 0 0 ! .. EDvJ --~ 1'7 4054.000 237.000 r~ EOW 18 4279.001) 0.000 . 19 4279.000 23B.700 1... EOW 20 4344.000 238.700 R EOhJ 21 53~)3. 0 0 0 0 '0 0 0 . ~ ::.~;:~ 535~3' 0 0 0 237.800 1 .. EDI,~J 23 54~52' 0 00 237.800 R EDW 1'1 IN 0.000 226' 1 0 0 ''Ia X i.MtJM 'J<:tX:i.MtJM ~ y' 5462. n~=so Sr.:·~ 1.0 sc,;;l~? 1 11 ·-· 780 1 11 .... 4 245.800 (frH··8.5 bv \for 8.5 b•.,. .I 11 1l forMat) forM,::' t) "ITl .. E: .::>ECTION: dSCHAi~GE Si.JS I Ti'~r:, H"YDI~OGIHlP HI C SI..IR ~JEYS 1984 crnns section LRX 83.8 MJGU~1T 16, ~~ 984 ____ ... ,_ .... ___ _ -·--_ .... --.... -· -~-.. p J 0 0 11'7 l ~~~~ 'l67 192 217 242 267 292 3"17 '342 367 392 417 442 467 492 542 592 6-42 692 752 882 917 992 1017 '1'042 100 1042 45,400 ====~========= 2.65.0 ... jc.-t::-,_ .• .•. \ .• t-..J. I 25/~ I 7 25"l. 6 2'5'1 .6 250.4 25"1 .5 252.0 25'1 .7 252.0 252.5 ':)1:"':) -,;;. '-S4' ••• ~ 252.0 252. ~?. 253.0 253.5 .?.54.2 256.1 2~58 '5 ;;60.8 .~~62. 7 265.0 265.0 ·258. 2 253.8 254.6 265.0 265.0 265.0 ***** DESCRIPTJON ***** ======================~== I...EOI;.i R J: I) BOT R I~,J BOT !~!'..) BOT RIV BDT Rit..1 BOT RIV BOT IUV BOT RIV BOT I~IV BO .. i" RIV BOT I~II) BOT RIV BOT IUV BOT RIV BOT IUV BOT RIV BOT IUIJ BOT RIV BOT iU\J BOT Rlt) IHH REO\.o.l L.EOW RIV BOT RIV BOT RIV BOT I~ Em~ H20 SUi~F(.:-1CE H20 SUI~Fr~CE END OF Dr:YT A Note: This data was compiled from U.S.G.S. streamgaging measurement field notes. All "y" values are soundings, "x" values are estimated distances. This cross section uses a datum estimated from a U.S.G.S. topographic map. -1 -· »***************************** CRDSS-SECl'JON PLOT ****************************** SUSITNA HYDROGRAPHIC SURVEYS 1984 cross section LRX 84.6 Date of Surueu: SEPTEMBER 19. 1984 POINT _~x:~ ~ross sectjon data: 1 0.000 2 3.000 3 16.000 4 26.000 5 40.000 6 li' B 9 '1(} 1 1. '1 ;?. L3 14-1 !:'i '16 t '7 '10 "19 20 ;:. '1 •'j,."t t. .. ~. 1")"'1' ~ .. :, ;_:~4 2~:.:; 26 ~ ' ;~~·7 :..:.~8 :.2(~) . ' 30 J'J. '-~ :3 ;::~ J:3 r ~ :34 3~':'j 3l::, ''1 , .. ; ·..> ·' 3B l __ :.3r.i 40 4'1 -·4;:.~ -4:.··, r ~ ·<"i··<l 1 4~5 r. I l. '?2 . () () (} 100.000 ll.i/'.000 1 ;,~ ;:?. • 0 0 () t6::s. o o o ::.~ 0 !::1 • 0 () 0 :2'7!:;. 0 0 () 3'1."1.000 :":L2£.~ • 0 0 0 334.000 34~:i. () () 0 36!.:'! . 0 0 () 386. 0 0 0 3'-1'~5. 0 0 () 3<"~...-'J, • 0 () 0 -40:3.000 40?.000 414.300 !.':i?'? ' 0 () () 63'7' 0 ()[I 6-4-:3.000 664.000 6?-'i.OOO 744.000 764.000 787.000 '?~?::.=: I 0 0 0 '7?9.000 B04.000 \34'/.000 BB9, 0 0 0 !_:)(j..:':\.000 (_:)'). ·,t • 0 0 0 '.:.:· 'J. 4. 0 () () 9'.!.'?.400 ?'.'.'i~:l ' 0 0 0 ·.t 04:.:.~' u () () '.1.0:3:.?..000 !. '.1. ~S'? , 1) 0 0 '1:.24?. 000 'y I ~2'?0.(:;0() ;~~6!:i . 8 0 [I 26'1. '?00 ~:~5'7' . 1 0 () ;~:!.:'i6.400 ;,~!57' ?0 0 260.'J.OO ::.~60.~.)(}() 26'1,'700 'J l •. , ... , 0 0 r-<=ir::. r / ::.:6:·5.600 ?6;~::. <? 0 0 26:?.. !;:i 0 0 26'1.300 :?.~:iB. 9 0 0 ;:_~!.':.i? •. ·:+1.) 0 :256 . El 0 0 :.::!.'58' 6 () () :.~6 '.1. • :-~ () () ;:2&..:~?. • 0 () 0 ~~63. 90 (l ;:26!? . 5 () 0 ;:~69' 'J. 0 0 ;:_>:,:;·.t, ::::.0 0 ;?.'?0. hO 0 ?6B. '? 0 0 :2'/o.;:~oo : .. :.~ 6 ~? I ::.i 0 0 26<?. <;.·o o ~:?.69.000 ~~~t'J '/ I ~.;50 0 ~.=.:: ~~:~ ~;:j I 2 0 0 :.264 '.:-:·,()0 : .. : 6 ;,::: . () () 0 :26::5. :::::o () :.:~6!5. 0 0 () :.:.:6::5. :.:?.o o :?bB.OOO ;,:~6U. 0 0 0 ;:~69.01)0 ;:_:2')' '.1. I /~ I:J 0 ;,:??::::' '.! 0 0 :.:.:6?. <_::·o o ;,:;:·7:2. :::')0 0 ;;_~'/O.BOO DE~;)CR J P T.;rC'IN ,~LCAP 1 .. l~>< !=Hi 84, b '--1 TOE L EDW RIV BOT RJV BOT RIV BDT RIV BOT RIV BOT F< FDl..J Cfi HI·-!.K c.;~:) TDP L EOIAI F~JI..J 'f::DT F(J:I.) DIJT R I 1• • .-' F::OT P:r.t,,..t BO"f' R EDl<.l BRI< TOE·: TO? ~~~~---1 c: P ·r 1 1_, , .. _ ...... ::i TClP TDC TClP TUE f'C~ ... , .... BH I< TOP x-:-: r:~ i< F~RI<: TCIE c;F; (.:: ~::: TClF TOe Bh:l< f.~NG P T ;_:;: c.;:::~ I·:: r~ ~< G~:; c.::~:; c; ~:) dU.L >I ('l f] )ii·IH d()J.. >IN::-1 JU.L dCi.J.. dD.L ::::u.L :::lCI.L dCi..l. dO.L :::iCl.L JD.J.. dU.J .. dU.L :::IUJ :::!OJ. ~IU.l. :i:: .L d ~::tNI;;! dO.L ::iD.L >I ?:lei i''l 0 ::i ~:1 .J..oa t1I~i .i .. OH i"1I:::I .LOH (I J: ;~:i i''lO:::J -~ d0.1. dCl.L ::10.1. ]Cl.L dD.L >I :~:1 :0, >INH >I (:1 }:J: 5:)~ b:J dO.i .. ~;iO.J .. :::101. dCI.L dD.J.. JO.J .. :::1 (.) .i. 0 o.s. 9'?'(;; 0 () .~:) . :;;; ') (:'~ () 0 "j .• :::iCJ:::; 0 0 :::i .·:·::·:;i::·:··: 0 0 /;. 99::::: 0 0 9. fli/(':·; 0 0 /. . '(. /., :::~ f) 0 ,-:·:-. 'f. {i:~ 0 0 ·:;.;· <:; l :::': OOC I./..<:; 0 0£' [:!'/:::: 0 ()(;·;. t..9<:: () 0 ~2. /., 9(':; 0 0 .. ::. t <:~ .::, (:~ o o s:.~ ::·:·:: /, <·.-:: o o ;::; · T. /.. z:; 0 0 0 '·:?'9(:~ 0 0 /. . <;;· 9 (;'; 0 0 ~ ·1: .:.:(·::: 0 0 T. '(;;t:..<~ 0 0 t,· Ol;(:; ()()i;r 69(:'; OOB'Bti'z:; 0 () /, (;; i. z: OOl.:' T.D:; 000. 01...<:: 0 0 B' (·~,·:;.•:::·; ()(i()'tJ-9(:; 0 0 9. ~:~i9i:;; 0 0 t;·· r.:: C) (:~ 0 ()(). i79:;·:: o o:t.: · <::9? 0 0 ~;.~. ~ 9(':! 009. {:'.9(:; 006't-•9e! () 0 ~:: . tJ /.., <:: () () i:l • f.: /, <:; 0 06' -~l.Z 0 Of.:l' 0/..c~ o o t, · ·u. <:: 0 0 t, ' T. D':': 000.69:::: 0 06' BSif.:; o on· o l.c: 009' 69(:; 0 0 'i. ' t.:· ·'~ (:; OOtr' 0/...z:·; 0 ()'(.;··' ·~.:..<:; 0 0 .:.1 • <':·:· 9 ;:;; 0 OB' B9(:; 0 0 ~~ I !":":~ 'l (:"! 0 0 t::l I !;~{i::~ 0 0 T.' 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CAP LI~X RN 23 I 000 296.600 TOP 31.000 294.200 TOE 3Cj> , 0 (} () 295.300 Bl~l< 65.000 293.700 L EOl~ 791000 291.500 Rn_. BOT 96.000 284.500 Rnr' BOT 1261000 2841500 RH-' BOT 1761000 2B7~600 RPJ BOT ~226. 0 0 () ~207. 60 I) RIU HOT 275.000 290.500 R ItJ f!OT 32(?. 0 0 0 291.500 RIV BOT 37c,r. 0 0 0 291.700 RIV BOT 42:L 000 292.400 R It.) :BOT 474.000 292.'700 RIV BOT 5031000 293.600 R EOl.<J ~40.000 294.500 GB 561.000 29~i. 60 0 Bl:<t< sc.r9 I 000 296.300 GS 626.000 ~:?.95 .1 00 TOP 6311000 293.300 L EDW 6:57 I 0 00 290.6()1} RI'J BIJT 6'75 I 0 () (l 2901400 R It.J BOT 721.000 291.ti00 RH-' BOT 7:38. 0 0 0 291.~!.00 RIV BOT 776.000 2901200 R JI.J BOT 812.000 291.200 ruv BOT ~123. 000 292.60() RHI BOT 849.000 293.200 R :r ~) BOT 872.000 29J.300 I~ EOl,J '7031000 293.000 GB ~ L EOl..l 940.000 29;.~. 60 0 I~'[ I) BOT <180.000 2901100 RIV BOT 1035.00f} 289. •J. 00 RIV BOT 1080.000 ~?.£16. '?0 0 RTV BOT 1110~000 ;2c?o. HO 0 R I'v' BOT 1"114.000 (7.9:·~ . 6 () () R EOI.,J 1117.000 29:.'. 20 0 TOP 1123.900 :.~96. 90 0 ANG PT 1 1132.000 296.61)0 TOP 113!.5. 0 0 0 29~5. 70 0 TOE 11.69.000 c?95. HO 0 ('I"' .•J ·.1 1208.000 ;?,<?4 . 9 0 () TOE 1213.()0() :?.96. 6 n n TOP 1260.000 :297 1 20 () r•c• .. 7• .. ) 90.6 L8 J. f-I •.,.J I '.1 U 'I ,-;:. ., Q. •i '' , .• 1,.:.• ;~:. -~ 47 1329.000 296' ~,>()() GS - 48 1:.362' 1 0 0 29~?. 10 0 POL '1 49 . 1371.000 ;~97' 0 0 0 TOP 50 1375.00() ~~9:.3. 600 L. EOhl 51 1383.000 ;;!9 ~. ' ~) () 0 I~ I'·J BOT 52 1392.001) ;.:.~91 ';?, {) () RIIJ BOT 53 1412.000 291.000 R I\.) BOT --, 54 1431).000 292. :~oo RIV BOT 55 1443.000 :?.93. 600 r~ ECll.-.1 5(, 146-9·, () 0 () 294.400 BRI< ;_ --57 1546.000 2<1~). 0 0 0 GS 58 1599.000 ~~<?5 '6 () () Bl~l< ~ 59 1631.000 29~,;' '1 () 0 TOP 60 1659.000 293.50() L EOl• .. l 61 16'70.000 293.000 LW PT 62 1679.000 29:L 500 H E: 0~1 63 172(,' 0 0 0 2<?4 '700 HI~ I<. 64 1.764.000 293.500 ,_ EOW 65 1800.000 292. '700 LI . .J PT 66 Hl35. 000 2 11~3.500 R EOt.-J 67 1845.000 294.500 TOP 68 1861.000 ;~93 .50 0 BRI< '· ~ 69 1899.000 294 ''70 () GS 70 19:33.000 294.t00 BHI< 71 195fJ.OOO 294.'?00 F.!l~ I( '-72 1986.000 :~92. 700 Bl~l< 73 ~~010.000 294.~~00 BI~K 74 2021 ,1)()1) 293.800 GS 75 2031.000 29:?.. '700 Bl~l< 76 2081.000 295 ' ;:.~f) I) (" C' :1 ... ) I' 77 2\'19.000 295.600 TOP 78 2138.000 ~~~)3 '70 0 TOE ! 79 2162.00() 293.900 (;f.' I." 80 21BB.OOO 293.1.!>1)0 TOE 81 2202.000 294~~>00 TOP c ~ 82 2243.600 2 1.:>4. 80 f) POL 2 83 2285.000 2':;>3. 900 TOP ---84 2297.000 ;~~?2 I 7 (} 0 TOE ' i 8c:-,;} 2323.000 292.400 'BRI< 86 2343.000 :~91 I 61) 0 TOE 87 2350.000 ~~94. 000 TOP 88 2409.000 ;~95 '0 0 0 BPI< c c 89 2479.000 294.000 GH 90 2590.000 294.200 TOP '- ! 91 260~?..000 29~~. ;:~o o TOE ' 92 2636.1 () 0 0 291. . ;?, 0 0 (~~~:) c ~ 975 2680,000 ~~92. 1 () 0 Bl~l< 94 :.?.717. 0 0 0 :.?91.400 TOE 9~:· '·' 27~11 . 0 0 0 29::! I 40 0 TOP 96 2B15.000 29:.~ I 1. () 0 r•r• .:J..;) . -97 291 ::?. • ('I 0 0 290.700 (;S ! 98 296B.400 ~:?<? n . 70 o POL. ~:) i L-99 2995.()0(} 28<?. ~.iO 0 L. t:::m·J 100 301].01)0 2801800 R P.J BOT r· 1 01 304;.?.. 000 ;.:.:H9. 4 0 0 R I'·) r:.nT L_, 1 0~~ 30'78.000 ::.~88. noo RJl) J:{OT 1 0~3 311:.?..000 288~100 I~ IV BOT l~ 104 3161.000 :.:.~n7. :~~ o o R I'·...' BOT 1P5 321!5, ()()() 287.BOO RJ:l) BOT 1- L - ... ,, .•• I ,. • ,, \J' ~ • i.-• •. •w t t '' u .-· ..• 1. -•• ( .'."."'WI -~ 1 0 17 33191000 ~~84.HOO R I'·) <BOT 10B 3367,(}1)1) 2841000 R I') BOT 109 .3406.000 2791600 RIV BOT 110 3442.000 ;~78. 200 R It,' BOT 111 34!33 .··o o o 284 I ~)00 RIV BOT -112 3500.01)0 2871700 RH.·' BOT 113 3507.000 2891700 R EOI.II ·~ 114 3516.400 ~:~1?4 1 0 f) t) ALCAP LRX PM 9016 !V3 Water sur·f~;~c~-·clat<:t+ ·· '- 1 t:)er: ooo 29:1,.700 1.. EOW 2 5031000 2931600 R EOli.J ~ 3 6311000 01000 4 631.000 293.300 L EOt·J 5 872~000 293.300 R EO !.AI 6 90:3. 000 01000 7 903.000 293.600 L Em.J ··-8 1114.000 293.600 R EOI.,J 9 1375.000 0,00() 10. 137~j, 000 293.600 L EOW 11 1443~000 293.600 R EOW 12 1659.000 o.ooo ~ 13 16~:i9. 000 293.500 L F.:Ql.J 14 1679.000 ?,f73.500 p EOM 15 1764.000 0.000 16 1764.000 2 1?3 I 500 L EOJ,.J 17 1835.000 ;~9:~ I 50() R EOW 18 ~~4)>9!:5 • 0 0 0 o~noo 19 299~~ I 000 28 1~. 500 L EOlzl 20 350'?.000 289. '70 0 ' MIN 010()0 278. ~?.0 0 MAX ~3516 I 40 0 297.200 ~MaX j,MUM 'X' scale 1" = 502 (for 8.5 bv 1 1 forMat) MaxiMuM 'Y' scale . 1 II ·-4 (for B I~:; b ~} 11. forM{-at) . ~::IJ '"": T T 1\'r:'r HY T) P f1GP t'iP H T C ~: IH-~ '-.1 F Y ·:~ "\':··t::.-1 Ci"rlS5 sc;-)C:tion t..PX ,,~ ,!~ Date of Survey: SEPTEMBER 1~. 1984 •. X I oss section dat~: n.ooo 1~.i.0()() 19.000 34.(lf)f} 6!:! ' 0 I) 0 9fl.OOfJ 11s··.ooo 148.000 180.000 0 216.000 :=47.000 ) 271.500 3 ;:?.7 6. 0 0 () ') 32'i'.00(l I 418,000 '6 4Flt . 0 0 0 13 'l ,,r I !\ '" f3 . ' I ) f(, 525. no o 6;~·::; . ()(I 0 667.00('1 t18B . n 0 0 7:~·;·· ' 0 I)() 775.000 817.000 859.000 8B4.000 ~,>27. on o ?50.000 971,i){)() 1009.000 1 O!:i~'.i. 000 1 087. () (} 0 11{)?,000 11~~0.000 11. 8?. f) 0 f) 1:2:37. no o 1?91).000 1345.000 l:590 (lf}f} 144:.:_~' 0 () () ot AnL t"tnn .•. -, / •,,} • 1 1 ,, u 15]4,000 15!54.000 1 ~s·n:;. o o o 1721.000 1 7?'2 , n rr 0 1Jlflf}' f)llf} 1fB?.OOO 1fl7f"l.lif)0 1949,000 2007.000 'Y' 3()~5.10() 30~'j, '100 ~~99. '?0 () 29':i,C?QO ::·.~ <_:;. 4 1 ~:) 0 () 2C?•l ' ~:i I) f) 27"5. 4 0 0 (=C7'6 ' 61) f) ~~96.90ll 296.500 ;~~95. ~i fJ 0 2c:>? ' ::-·f) I) 300.'~J()() '30l.:.:.>oo 30;.?..0f)O 303. :.:.~0 0 3fl!5.20fl ~-)f}-4. ~'i() fl 30!"i.:~oo 3no::;,~~oo 304.100 300.300 300.400 :JOO.BOO 302.900 30t'. ~.'iO 0 302.400 301..400 301.'100 300.~;)01) 299.600 299.200 29'7.500 i.~(::o~:; . !'5 n n ::?.~)3 • ::~ () 0 :.:.?(? 1 . ? f) 0 ;~<11 ' 1 () () 290.300 ;:?.?0. 80(1 ~r·. "' 1'\t'\ '' /.".~. 7,"' "'t I (") l.f (,I 2<.:->e. 40 o 29~). B 0 f) 301.600 30:3,-40() 30::.~. 70 0 '!.fr1 .400 30''-'("IQ(l 302.800 ::nn. :::tl o 3o~~.noo Dr::~:;.r;p T F"' T T n;; AI..CttF' I P v PI·'! ',~ ·1 r' TOP L F:()I,J I~IV DOT R I'..J BOT RJL' noT RI'-.J BOT R I'--1 f.{nT RIV BOT P. I 1) f.{OT R J:',) :8fJT H Efll.o.l TOP ( ... ,_::-........ DPI< (··c:· ........ BPI< F~ pI< Bl~l< TOP TOE TOF: TOP BPI< L EOI,J RI'.,J BOT RI',) BOT PIV BOT RI\,1 I~OT IHV BOT P J~! BOT PJl.) BOT F~:r.u tfOT PJ'..) BOT I~ I'·) BOT I~ T t; F.-:OT r-. 'I" I I •t•. •'''\ ,.,. r.:. .1. -.._; .t' 1...1 1 R I'.) BOT PI'-.' 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'.71) 0 (;~:3 63 26!35.000 ;.:?.c;.>e. :?o o TOE: ' 64 2707.000 300.200 TOP ~ 65 2802.000 301 .:?.00 rr' I .o·.) 66 ':>Q-.7r.) 000 301 • 3 () 0 B!=~ I< l .... -l •• )~' 67 3010.000 303 '~')() 0 r'r' .:1i.") 68 3105.900 304. 10 0 POL. 1 I 6('1 3166.000 303.'?00 TOP 70 3183 . f) 0 f) 302.700 TOF: 71 32i?.7:~ • 0 0 0 ]01 ,9()0 GS I [ 72 3300.000 302.600 GS ~ 73 337:~. 0 () 0 30::~.300 BPI< ' 74 342B. 0 0 f) :?OCl, '.7() () G~ E) [ '75 34'.74.000 297.700 Gf.? -~ 76 34<.ro.ooo 295, ~'.iO 0 cs 77 3511 .000 i?.97. :70 0 T()[ 7B ~!,528. 00(} ~)02.400 TOP [ ~ 79 35'71 .0()0 30:~.400 Tnt BO :35'?0 ' () 0 0 ~304.900 TOP 81 3~5'76. ?0 0 30~3. 100 ,~i·'C PT 1 ,,... 82 3590.000 304.eiOO TD.P iL a3 359?.000 3 (l1. ' <y 0 (l TOE 84 3630.1)01) :::; 01 • 6 0 f) F.H~ I< 8~5 368:2. 0 00 303.(:>00 cs IE 86 3753. ()()() 303. ~'j() 0 (" ... , . ..,. .. 7 ,") 87 3804. 000 30::~.400 Br-ll< 88 3842.000 (.~~)~, • :.i 0 0 F.<lx I< , " 89 389'.1. .000 301 • !':i () 0 r;E> l 90 3990.1)!)() :~~ 0 3 ' ~:; 0 0 Gf; --91 40(36,('1()0 300 • !'.) (l () r:;s 9'=> 4210.000 :.:::s>?. ?O o :81~ t< P1 '" i 93 4:50?.000 29H.?OO r\, ... '.' ~, --, C)4 4:39?, 000 ;,:.~<.;><_;>' 60 f) Bl~l< 9!5 4446.000 302.400 Bl~l< ! ~ 96 4532.000 Jo;~.:3oo r ... ,. ... -~· .: ') 97 4!.'5 114. onn 30:2' 100 Ell? I< 98 4(>':5? , ()I)() 301 . ~~ 0 0 f.-:p I< ~ ?9 4'7i. '.')'()f) 0 '30'.1 '20 0 BF<'I< 'i:::_ -~ ~ 100 4753. '~flO ~:)0:~. ·.t no t'nl ':> . ·-·t ... .. 101 4!102.(1()() :102. <:>o o r' c~ .'1\.) I 102 4!335. 1)()0 303.100 TUI=> 103 4B6~j. 000 30o.::~oo TflE 104 4B92.000 :~ 0 1 . 6 ()(I PI" I< 105 49'::;::)' [I() 0 301 ' ~::; () 0 ("''' I ·.··::. ~-~ 106 ~'i021>. I) i) I) 3Q2:.40f) n F~ 1< 1 0'/ :.) f)(? 1 ' noo ::-; o :~. 6 on r.; ;· ~ 108 ~.'i 1. :7)1_ Ill)() 302.f.~OO f!P I< I -~ 1. 0? 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BOT 133 60?4.000 ;,:.~97 . f.~. 0 0 R FOI..J 134 61():..~.000 ::-:o..:t. ;:~n t) TClP 135 6138.400 304.200 POl.. 3 1 :~6 6173.000 30~5.?1)0 TOP 1 :~7 61 a::~ . o o o 30'.1. .900 TOE 138 6194,000 301 ,/'0 0 TOE 13<? 6~:.~ 0 1 .000 303.~'500 TOP 140 l)Z~33 I 000 303.000 ("'<~' :.• .... • '14 "l 6281 .000 3o::~.1on (';f) 142 6316.1)00 :~03.100 Bl~l< 143 6334.000 30:~.600 tlP I< 144 6354.001) 30~~.~~00 TOE 14~3 6361 .000 30~LBO(l TOP J 146 63??.1)()Cl 30:r..~.'i00 ,.,, .. , ..... ~:) 147 6421 .000 30:L 20 0 BRI< 148 644~~ . !) I) r) 303.~~()() Br~v 14 1? 64!.'-j~~. 6 (l 0 303.600 POL 4 1 :::io 64'?2:.000 ::; 0 ~.:.~ . ':5 () f) Bl~l< 1 ~:.; 1 6519.000 30'.1. .000 J:':.R I< 1 c:·•:> ,}<.:;. 6556.000 ] I) 1 • ?00 c~ ~3 1 t:·-, ,) ,_. 6610.000 30'.1. '1 0 0 BPK 1~i4 6t"J:i1. ,{}()() :299. ~so o t:;s 1 c:·o::-• ·.J .J r,6 ':.:on . n n n 29n. 41ln cs 15~) 673?.000 ~-~ (.:,:, ::' , 8 0 ~ :1 L [Olt.l 15'.7 67'.7(],000 t.~ <.~·? • ~~so o ~~ It.) BOT 1 :in (-,813. 0 0 0 '')(:)r"} 1 .•. · .•' • 000 p T'.l BOT --1 !:5? 6U4'7,000 ;:.~?6.400 p 1') r:nT 1 ~lo 68'!'0, 1}1}1) ~~~~5 I '?0('! DTIJ T."JnT ., ... "" '·•' ··-· ' 161 6BD7.000 :.?.<'?~'). 4 0 0 I~ J'.) BOT ' 16:.~ 6902.1)00 ~~9'? . 1? (I 0 p EOlo.l -J 16~3 691~-j, 000 302.~~00 TOP 164 (;/)/)~:; . 0 I) 0 301 .i>OO !'' , ... r ... ,.::) I 16!:) ?0 1. 1 .noo 300.700 L-TOP 166 704i}. onn ('~>O , ·'1· fr fl 1._ F~ 1.! 1·1 16'7 '?0 1:> 1 .000 :~?n.noo R T.') BOT I 160 709l.OOO :~<.;H;>, 4 f)() I~ EO I.~ I 1.69 '7107.1100 :.30 0 . b ll (l TCtF:: 1.- 1'?0 711:?.000 303.600 TDP l ,.- 171 7134.000 303.700 BPI< 17"2 71:~)5. 0 0-0 :)0 3. 0 () 0 (.; ~=~ 173 71 a;.:~. o o o :::;o:··}.too ("'<~ .'J .. J 174 7279. ~iO 0 304.300 ALCtW L. r-.> ::< j;> i'i 91 c, I .• } fU3 I.AJ•'il ter surf'.:~ce da t<l: 1 1?.000 299.700 L ED hi 2 271 .500 299. '7'00 H EDI•l 3 s>7t.ooo () • (i 0 0 4 971.000 301.400 L EO I . ..) 5 1575.000 3111.60(1 R EDl•l 6 2618.1}00 0.000 7 :~61 B. 0 0 0 300.000 APFWY 1.. 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(}()() 336 I ~.'iOO L r::ot. .... t 336.500 ~~ EOI.>J 328.BOO 344. 0'?0 ,~; ~~~ I' r~ L L l L r , [_ L L L L L L L L L L L MlS/31 78 APPENDIX C Blueline Photomosaic Maps of the Lower Susitna River Showing Locations of Cross Sections and Fish Habitat Study Areas ._____. 0 5 10 Miles ~ 0 5 10 15 Kilometers COOK INLET PREPARED BY: r----------------------~&M CONSULTANTS, INC. .NGIN.ERS OUOLOQIBTe HVDROLOOIDTII BURV.YORB SUSITN ./ STATION o/ (RM 261 ____J Q,~ 0 q_o1\o~e. Rl.:vcz..r i!-,-1 c~ \.\) \}J\\\0 [QJ @ ® €9 w (i) ~~ {sL_) ~ @ ,( __ SYMBOL KEY CONTINUOUS DISCHARGE MISCELLANEOUS DISCHARGE STAGE WATER QUALITY CONTINUOUS WATER TEMPERATURE WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECTION THALWEG PROF! LE SHEET 1' OF 28 r-"'ANCHORA ---~~ _ GE __ _, PREPARED FOR: LOCATION MAP . [}:{]£~~& D @00&~©@ SUSITNA JOINT VENTURE I I . J I 11 SYMBOL KEY (!) WATER TEMPERATURE ALASKA POWER AUTHORITY [QJ CONTINUOUS DISCHARGE @ SUSPENDED SEDIMENT SUSITNA HYDROELECTRIC PROJECT :J @ MISCELLANEOUS Dl SCHARGE @ BEDLOAD LOWER SUSITNA RIVER ® STAGE ·~ BED MATERIAL DATE OF · PHOTOGRAPHY SEPT 16,1983 @ SCALE : I"= 2000' SHEET : 2 OF 28 WATER QUALITY CROSS SECT I ON DATE : 2-7-8~ l [!] CONTINUOUS WATtR TEMPERATURE § THALWEG PROFILE __;=~ HAW·E§A,CO ••-C D N •v .. ,. ..... ., •• oNe:. SUSI TN.A JO I,_r V INTV,.l I] SYMBOL KEY I [QJ CONTINUOUS DISCHARGE l @ MISCELLANEOUS Dl SCHARGE J ® I STAGE @ WATER 1 QUALITY [i] CONTINUOUS WATER TEMPERATURE I 0 @ @ ~ @ WAT E R TEMPERATURE SUSPENDED S ED IM ENT BEDLOAD BED MATERfAL CROSS SECT I ON THALWEG PROF I LE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DAT E OF PHOT OGR APHY SEP T.I6,1983 SCA L E : I"• 2000' SH EET : 3 OF ?8 DAT E: 2 -7 -84 SVSI TNA JOINT VENTUif E / / SYMBOL KEY [Q] CONTINUOUS DISCHARGE @ MISCELLANEOUS DISCHARGE ® STAGE @ WATER QUALITY [1] CONTINUOUS WATER TEMPERATURE (!) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECTION @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DA TE OF PHOTOGRA PH Y SEPT.16, 1983 SCA L E : I"• 2000 ' SHEET : 4 OF 28 DATE: 2-7 -84 SUSI TN A JO INT V £NTUifE I I I I I J II lj 1 SYMBOL KEY (!) ~ CONTINUOUS DISCHARGE @ @ MISCELLANEOl,JS DISCHARGE § ® STAGE ~ @ WATER QUALITY [i] CONTINUOUS WATER TEMPERATURE @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECTION THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT.16,1983 SCALE : 1"~ 2000' SHEET: 4 OF 28 DATE: 2-7-84 ____;=~ A '""" C:ONt>LJ'-'"'"''"'· oNC, H ------------------------------------------------------------------------: ________ j_ _______ L SUSITNA JOIN T V(NTU_R_E --' r I I I J I I I l I I -I SYMBOL KEY [QJ CONTINUOUS DISCHARGE © MISCEL LANEOUS Dl SCHARGE ® STAGE @ WATER QUALITY LiJ CO NTI NUOUS WATER TEMPERA TURE G) WATER TEMPERATURE (§ SUSPENDED SEDIME NT @ BEDLOAD ·~ BED MATERIAL CROSS SECT I ON § THALWEG PROFILE ALASKA POWER AUTHORITY SUSIT NA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER I SCAL E I"• 2000' SHEE T 5 OF 28 DATE . 2 -7 -84 DAT E OF PHOTOGRA PH Y SEPT 16,19 83 j _F~ M~Rlll ·IE~Jl~~@ ... ..,.. c o ..... •u<-TA,..T • ,.,.c SU S•TNA JO I N T V ENTUit f ! l l I 1 J I J I J I ] I SYMBOL KEY @] CONTINUOUS DISCHARGE @ MISCELLANEOUS DISCHARGE ® STAGE @ WATER QUALITY [i] CONTINUOUS WATER TEMPERATURE <!) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECTION @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PH OT OGRAPH Y SEPT. 16 ,1983 SCA LE : I"~ 2000' SHEET : 6 OF 28 DATE: 2-7-84 SUSirHA JOJHr VE HrVIfl 1 ' J I J SYMBOL KEY [QJ CONT INUOU S DISCHARGE J @ MISCELLANEOUS Dl SCHARGE ® STAGE I I @~ WATER QUALITY [I] CONTINUOUS WATER TEMPERATURE I (!) @ @ ~ @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECT I ON THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT .I 6, 1983 SCA LE : I"= 2000' SHEET: 7 OF 28 DAT E : 2-7 -84 SUSJrN.A JOJNr VENrUifE J I l SYMBOL KEY I· [QJ CONTINUOUS DISCHARGE j © M I SCELLA N EOUS Dl SCHARGE I ® STAGE J @ WATER QUALITY [iJ CONTINUOUS WATER TEMPERATURE . I cv @ § ·~ @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECT I ON THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUS ITNA RIVER DATE OF PHOTOGRAPHY SEPT.16,1983 SCA LE : 1": 2000' SH EE T: 8 OF 2 8 DAT E : 2 -7 -8 4 SUSITNA JOINT V ENTUitE I I; I j I 1 I [QJ @ ® @ w SYMBOL KEY CONTINUOUS DISCHARGE MISCELLANEOUS Dl SCHARGE STAGE WATER QUALITY CONTINUOUS WATER TEMPERATURE CT) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECT I ON @ THALWEG PROF! LE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT . 16 ,1983 SCALE : I"~ 2000' SHEET : 9 OF 28 DATE: 2-7-84 SUSI rNA .JOINr V ENnJAl SYMBOL KEY CONTINUOUS DISCHARGE MISCELLANEOUS DISCHARGE STAGE WATER QUAUTY CONTINUOUS WATER TEMPERATURE WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERfAL CROSS SECTION THALWEG PROFILE CASWELL ALASKA POWER ALJfHORITY SUSITNA HYDROELECTR IC PROJEC T LOWER SUSITNA RIVER DATE OF PHOTOGR AP HY SEPT. 16 ,19 83 SCALE : I "~ 2000 ' SHEET : 10 OF 28 DATE : 2-7-84 SUSifNA JOtH r VENrU ffE J 1 ~ SYMBOL KEY [QJ CONTINUOUS DISCHARGE :j @ MISCELLANEOUS DISCHARGE r ® STAGE @ WATER QUALITY l [i] CONTINUOUS WATER TEMPERATURE (!) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECTION @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOT OGRAPHY SEPT .I 6,1983 SC ALE : I "= 2000 ' SHEET : II OF 28 DATE : 2-7 -84 . SUSITNA JOINT V(NTU"l 1 !Ji----------------------------------------------------------------------------~----------------------~ ll . I ' J i j J J (i) WATER TEMPERATURE [Q] CONTINUOUS DISCHARGE (§ SUSPENDED SEDIMENT @ MISCELLANEOUS DISCHARGE @ BEDLOAD ® STAGE ~ BED MATERIAL @ WATER QUALITY CROSS SECT I ON J [i] CONTINUOUS WATER TEMPERATURE ~r-----------------~~~~~~---------------------------- @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPH Y SEPT. 16 ,1983 SCALE : I"• 2000' SHEET: 12 OF 28 DATE : 2-7-84 SUSITNA JOINT VENrultl --------~---------L--------~ SYMBOL KEY [QJ CONTINUOUS DISCHARGE @ MISCELLANEOUS Dl SCHARGE ® STAGE @ WATER QUALITY !il CONTINUOUS WATER TEMPERATURE G) WATER TEMPERATURE @) SUSPENDED SEDIMENT @ BEDLOAD ·~ BED MATERIAL CROSS SECT I ON @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PH OT OGRA PHY SEPT .16, 1983 SC ALE : I "= 2000 ' SHEE T: 13 OF 2 8 DATE : 2-7-84 SCJSI TN A JOrN T V CN TUifl I l I SYMBOL KEY [QJ CO NTINUOUS DISCHARGE @ MISCELLANEOUS Dl SCHARGE ® STAGE 8 WATER QUALITY [iJ CONT INUOUS WATER TEMPERATURE <!) WATER TEMPERATURE @ SUSPENDED SEDIMENT § BEDLOAD ·~ BED MATERIAL CROSS SECT I ON @ THALWEG PROFILE ---------- ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DAT E OF PHO TOGRAPHY SEPT. 16 ,198 3 SCA LE : I"= 2000' SH EET : 14 OF 2 8 DA TE : 2-7 -8 4 SUS/rNA JOINT VENTUilE ~ ~~-----------------------------------------------------------------------------------------------------------------------------------------------------------------------, I ) J J J I 1 I J I l I [QJ @ ® @ [I] SYMBOL KEY CO NTINUOUS D I SCHARGE MISCE LL A N EOUS Dl SCHARGE STAGE WATER QUALITY CONT I NUOUS WATER TE M PERATURE (i) WATER TEMPERATURE @) SUSPENDED .SED I MENT § B EDLOAD ·~ BED MATERfAL CROSS SECT I ON @ THALWEG PROFILE • ALASKA POWER AUTHORITY SUS ITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHO TOGRAPHY SE PT.16,19 83 SCA L E: 1": 2000' SHEE T: 15 OF 28 DA TE : 2 -7 -84 SUSITNA JOINT VENTUifl i ' I I I SYMBOL KEY (I) WA T ER TEMPERATURE ALASKA POWER AUTHORITY I [QJ CONTINUOUS DISCHARGE @ S USPENDED S EDIMENT SUSITNA HYDROELECTRIC PROJECT J @ MISCELLANEOUS Dl SCHARGE @ BEDLOAD LOWER SUSITNA RIVER I ® STAGE ~ BED MATERIAL DATE OF PHO T OGRAPHY SEPT. 16 , 1983 @ SCALE : I"• 2000 ' SHEET : 16 OF 2 8 1 WATER QUALITY CROSS SECT I ON DATE: 2-7 -84 w CONT I NUOUS WATER TEMPERATURE @ THALWEG PROFILE _;=~ MJl:ilA·EIB~~~q; • ., .... co"'"'"""r ....... '"'c SVS/TNA .JO INT V(N TVIt( ALASKA POWER AUTHORITY SYMBOL KEY G) WATER TEMPERATURE SUSITNA HYDROELECTRIC PROJECT 1 [QJ CONTINUOUS DISCHARGE @ SUSPENDED SEDIMENT LOWER SUSITNA RIVER I @ MISCELLANEOUS Dl SCHARGE @ BEDLOAD DA TE OF PHOTOGRAPHY SEPT.I 6,19 83 ·~ SCA LE : I"~ 2000' SH EET: 17 OF 2 8 J ® STAGE BED MATERIAL DATE : 2-7-8 4 I @ WATER QUALITY CROSS SECT I ON 5 ~~1'01__ DUJlilZJl·IEmJl~~@ @ .,~,... cc,...,.v .. r • ... rs. '"'0:. SUSITNA .JOINT V(NTU~E w CONTINUOUS WATER TEMPERATUR E THALWEG PROFILE I , I I IJ 1 I ] I I I [Q] @ ® @ [I] SYMBOL KEY CONTINUOUS DISCHARGE MISCELLANEOUS Dl SCHARGE S TAGE WATER QUALITY CONTINUOUS WATER TEMPERATURE (!) WATER TEMPERATURE @ SUSPENDED S ED I ME N T @ BEDLOAD ·~ BED MATERIAL CRO SS SEC T I ON @ THALWEG P R OFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTR IC PROJECT LOWER SUSITNA RIVER DATE OF PHO TOGRAPHY SEPT .I6,1983 SCA L E : I"• 2000' SHEET: 18 OF 28 DAT E : 2 -7 -84 SUS/r,"'A JOINr VEN TUR E ~:"' . ...__ -··-. ---- SYMBOL KEY [Q] CONTINUOUS 0 I SCHARGE J @ MISCELLANEOUS Dl SCHARGE ® STAGE J @ WATER QUALITY [!] CONTINUOUS WATER TEMPERATURE (!) @ § ~ @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECT I ON THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHO T OGRAPHY SEPT. 16,1983 SCA LE : I "• 2000' SHEET· 19 OF 2 8 DAT E : 2 -7 -84 SUSlTNA JOINT 'IEN:"U!f E SYMBOL KEY (!) WATER TEMPERATURE ALASKA POWER AUTHORITY I [QJ CONT I NUOUS DISCHARGE @ S USPENDED SEDIMENT SUSITNA HYDROEL ECTRIC PROJECT I J @ MISCE L LANEOUS D l SCHARGE § BEDLOAD LOWER SUSITNA RIVER ® STAGE ·~ BED MATERfAL DATE OF PHOTOGRAPHY SEPT.I6,1983 @ SCA LE : !"~ 2000 ' SHE ET : 2 0 OF 28 l WATER QUALITY CROSS SECT I ON DAT E : 2 -7 -84 .I [i] CONTINUOUS WATER TEMPERATURE @ THALWEG PROFILE _5=F~TvJ1 GUJllflVl · !E&J:J~~@ A C.M CON!Iil.t'-f&NT11 oNC, SUSI TNA JOIN T VE NTUifE SYMBOL KEY @] CONTINUOUS DISCHARGE @ MISCELLANEOUS DISCHARGE ) ® I STAGE @ WATER QUALITY [i] CONTINUOUS WATER TEMPERAT URE (i) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATER f AL CROSS SECT I ON @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT.IG , 1983 SCAL E 1"~2000 ' SHEE T : 2 1 OF 2 8 DAT E : 2-7 -84 SUS/ rNA JOINT V EN TUitE I ( I J I ~ @ ® @ [l] SYMBOL KEY CONTINUOUS DISCHARGE MISCELLANEOUS Dl SCHARGE STAGE WATER QUALITY CONTINUOUS WATER TEMPERATURE (!) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECT I ON @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DA TE OF PHOTOGRAPHY SEPT.I6,19 83 SCALE: 1", 2000' SH EET : 22 OF 28 DATE: Z-7-84 SUS/rNA .JOINT V ENTUR E SYMBOL KEY Ci) ~ CONTI_NUOUS DISCHARGE (§ @ MISCELLANEOUS Dl SCHARGE § ® STAGE ·~ @ WATER QUALITY [!] CONTINUOUS WATER TEMPERATURE @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD BED MATERIAL CROSS SECT I ON THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DAT E OF PHOT OGRA PHY SEPT . 16,1983 SCAL E : I "~ 2000 ' SHE ET : 2 3 OF 2 8 DAT E : 2-7-8 4 SU$1rNA XHitT V£N TUifE j I I SYMBOL KEY [QJ CONTINUOUS DISCHARGE i J @ MISCELLANEOUS Dl SCHARGE I ® STAGE I €9 WATER QUALITY I ' !iJ CONTINUOUS WATER TEMPERATURE (!) @ § ·~ @ WATER TEMPERATURE SUSPENDED SEDIMENT BEDLOAD ' BED MATERIAL CROSS SECTION THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT . 16,1 983 SCAL E : I"• 2000' SH EE T: 24 OF 28 DATE: 2 -7-84 ' l J I SYMBOL KEY '] [Q] CONTINUOUS DISCHARGE I @ MISCELLANEOUS Dl SCHARGE ® STAGE @ WATER QUALITY [I] CONTINUOUS WATER TEMPERATURE (!) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERfAL CROSS SECT I ON @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT. 16,1983 SCALE : I"• 2000' SH EET : 25 OF 28 DATE: 2-7-84 SUSITNA JOINT Vl.NTURE J J SYMBOL KEY (i) WATER TEMPERATURE ALASKA POWER AUTHORITY [QJ CONTINUOUS DISCHARGE @ SUSPENDED SEDIMENT SUSITNA HYDROELECTRIC PROJECT J @ MISCE L LANEOUS Dl SCHARGE _.(§ BEDLOAD LOWER SUSITNA RIVER ® STAGE ·~ BED MATERIAL DAT E OF PHOTOGRAPHY SEPT .I6,198:3 @ SCAL E : I"• 2000' SHE ET: 26 OF 28 WATER QUALITY CROSS SECT I ON DATE : 2-7-8 4 [i] CONT I NUOUS WATER T EMPERATURE @ THALWEG PROFILE 5~ ~~ZJJ ·IEI:J.Pl~~@ • .,,... c:o ... ,...., .. ,,. ... Ta , .... c:. SUSITNA JOINT VlN TV~f i -I SYMBOL KEY [Q] CONTINUOUS DISCHARGE @ MISCELLANEOUS DISCHARGE ® STAGE @ WATER QUALITY [I] CONTINUOUS WATER TEMPERATURE (i) WATER TEMPERATURE @ SUSPENDED SEDIMENT @ BEDLOAD ~ BED MATERIAL CROSS SECTION @ THALWEG PROFILE ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT LOWER SUSITNA RIVER DATE OF PHOTOGRAPHY SEPT .I6 ,1983 SCA LE : I"• 2000' SHEET : 27 OF 28 DAT E : 2-7-84 SUSJTH A JOINT VENTUftf _j SYMBOL KEY cv WATER TEMPERATURE SUSITNA HYDROELECTRIC PROJECT J [Q] CONTINUOUS DISCHARGE @ SUSPENDED SEDIMENT LOWER SUSITNA RIVER @ MISCELLANEOUS Dl SCHARGE @ BEDLOAD DATE OF PHOTOGRAPHY SEPT .IG, 1983 SCALE: I"= 2000 ' SHEET: 28 OF 28 J ® STAGE ·~ BED MATERIAL DATE: 2-7-84 @ WATER QUALITY CROSS SECTION _F~ M#l:fZIJ • f~£:CD @ "'~M C:DN.O ...... TA ... T&. INC. SU!f/TNA .JOINT VENTllffE [!] CONTINUOUS WATER TEMPERATURE THALWEG PROFILE