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HomeMy WebLinkAboutWatana Development River Stage Fluctuation 1984FEDERAL ENERGY REGULATORY COMMISSION PROJECT No. 7114 '· ~- I w~ 1: f' t:. , ' '~ I r· I ~~ r fl WA T ANA DEVELOPMENT RIVER STAGE FlUCTUATION RESULTING n P FROM ALTERNATIVE OPERATIOt~S ~1 u p' ~ ,. ~ l ! [}{]L%[ffi~~~@fiD~©©@ SUSITNA JOINT VENTURE DRAFT REPORT JANUARY 1984 DOCUMENT No. 88# .._~ALASKA POWER AUTHORITY _ _... ' 'i . ! .. ~ \. ',(' '·..! &·usitna File oNo o 42.2. 3 SUSITRA HYDROELECTRIC PROJECT RIVER STAGE FLUCTUATION RESULTING FROII 7..LTERBATIVE OPERATIONS WATANA DEVELOPMENT Feport by Harza-Ebasco Susitna Joint Venture Prepared for Alask·a. Power Authority Final Report January 1984 r ' r r r· r f f f !." ! r r ~. f l f, t t t· --····· ., .... 1 ., NOTICE ANY QUESTIONS OR COMMENTS CONCERNING THIS REPORT SHOULD BE DIRECTED TO THE ALASKA POWER AUTHORITY SUSITNA PROJECT OFFICE '"'·[· I '" \·, r· I l1 r .P: j:t r r r f 1 SECTION/TITLE LIST OF TABLES LIST OF EXHIBITS 1.0 SUMMARY 2.0 INTRODUCTION 3.0 METHODOLOGY 4.0 BASIC DATA 5.0 ROUTING AND RESULTS References Tables Exhibits . ' TABLE OF CONTENTS PAGE ii iii 1 1 1 3 3 - i - £ I ! l f I l t r I I l I r L I I, } I I ···I r r , [ r L NO. 1 2 3 4 LIST OF TABLES TITLE Near Extreme Pmver Peaking Operation Hourly Release Pattern for One Day Estimated Intervening Flows Range of River Stage Fluctuation from Devil Canyon Damsite to the Confluence with Chulitna River Range of River Stage Fluctuation from the Confluence with Chulitna River to Sunshine Ga"ge Station -ii - r I ! [ .. . , I l l !"" ! I ...... ~-~~~~~,.;.·~~"'i:"'·~-, __ , ~ -··~-..... r;:... '•n-=·~~~;::::, "O)"" .,,.,.1..,._.,.,., , .. ~.,~f!i.,._,_,,..,....,..$::;;::;:; ·v-.1 -··' ~--= •••• ' I LIST OF EXHIBITS " NO. TITLE ··n 1-5 River Cross Sections Used in Dynamic Wave Routing .· ·: •' ·. =~ 6 Routed Discharge and Riverstage Hydrograph at Section 68 for Summer Operation r 1 7 Routed Discharge and Riverstage Hydrograph at Section 55 . I , i':,' for Summer Operation i!tJ< ~ l .'I r 8 Routed Discharge and River stage Hydrograph at Section 44 i·£ 1 .{ I. f'../ for Summer Operation 1·; I -~ i 4: !· .f ; r· r 9 Routed Discharge and Riverstage Hydrograph at Section 30 r for Sunnner Operation ,. j'·. ~·;; ,· .-! r: f 10 Routed Discharge River stage Hydrograph Section 18 ' I • and at r-for Sunnner Operation r 11 Routed Discharge and Riverstage Hydrograph at Section 3 for Summer Operation I r 12 Routed Discharge and Riverstage Hydrograph at Section 68 for Winter Operation I 13 Routed Discharge and River stage Hydrograph at Section 55 ~ r for Winter Operation ~ 14 Routed Discharge and Riverl3tage Hydrograph at Section 44 I, for Winter Operation , 15 Routed Discharge and River stage Hydrograph at Section 30 I for Winter Operation I 1 16 Routed Discharge and River stage Hydrograph at Section 18 l for Winter Operation 17 Routed Discharge and Riverstage Hydrograph at Section 3 ' for Winter Operation 18 Routed Discharge and River stage Hydrograph at Section 1 for Summer Operation J 19 Routed Discharge and Riverstage Hydrograph at Section 0.3 ,. for Summer Operation t 20 Routed Discharge and River stage Hydro graph at Sunshine Gage for Summer Operation 21 Routed Discharge and River stage Hydrograph at Section 1 ! for Winter Operation 22 Routed Discharge and River stage Hydrograph at Section 0.3 !"' I for Winter Operation r Riverstage Hydrograph Gage I 23 Routed Discharge and at Sunshine l l for Winter Operation I ! I f l l ! i< 1 1 -iii -l I 1 i. ! l l ~ Ji i ! t J \ L 1.0 SUMMARY River stage fluctuations due to alternative operations of the Watana development were estimated for the Susitna River from the Devil Canyon damsite to the Sunshine gage station. The estimation was made by routing two discharge patterns assumed to represent near extreme summer and winter power peaking operations for Watana. Results of the routing are given in Tables 3 and 4. The ranges of river stage fluctuation upstream of the confluence with Chulitna River are 0. 9 to 1.9 feet: for summer operation, depending on location, and 1.6 to 4.2 feet, for winter operation, depending on location1 From the confluence with the Chulitna River to Sunshine gage, the corresponding fluctuations are reduced to 0.1 to 0.5 foot for summer operation and to about 1.4 feet for winter operation. The discharge and stage hydrographs at 9 selected locations along the river are shown on Exhibits 6 through 23. 2.0 :.NTRODUCTION Operation of the Watana development. requJ.res adj 1.1stments of release from the reservoJ.r for energy production according t:o load requirements. There could be consid~~able fluctuation of reservoir releases within short time intervals if the development is operated to meet consumption requirements. A brief study was made in la.te November 1983 to evaluate attenuation of discharge and river stage fluctuations in the reach between Devil Canyon to Talkeetna upstream of the confluence with the Chulitna Rive~. This study extends the analysis to the Sunshine gage located about 14 miles downstream of the confluence. 3.0 METHODOLOGY To estimate rJ.ver stage fluctuation due to alternative operation of Watana, the dynamic ~ave routing model (DAMBRK) developed by Dr. D. L. Fread of National Weather Service (1) was used to route ~he reservoir release for energy production from Watana Dam to Sunshine. 420071 1 I I t i I .~ n ... " . r i ~ ! I : t . ~~ f L \; 'rhe. model is based on the Saint-17enant unsteady flow equa.tionts. The Saint-Venant unsteady flow equations consist of a conservation of mass equation, i.e., and & conservation of momentum equation, . ~.e.' where Q is the discharge, A is the active cross-sectional area of flow, A10 is the inactive (off-channel storage) cross-sectional area, x is the longitudinal distance along the channel (valley), t is the time, q is the lateral inflow or outflov7 per linear distance along the channel (inflow is positive and outflow is negative in sign), g is the accE.~lercLtion due to gravity, Sf is the friction slope, Se is the expansion-contraction slope, and h is the water depth. In order to solve the unsteady f:low equations, the initial co·nditions of the flow at all cross sections must be known. The initial flow at each cross section ~s computed to be: Q . =Q . ·1 + q . '1 Llx ~ ~-~-~- i = 2, 3,--N where Ql ~s the known discharge (assumed to be steady) at the upstream end, and qidx ~s any lateral inflow from tributaries existing between the cross sections spaced at intervals of ~x along the reach. The water surface elevations associated with the initiial flows are internally dt~term.ined by solving the followh1g equation: 420071 a (Q2/A) + gA (aahx +sf) = o ax 2 ( t l l I !. I I l I I l ~~ I: I j I l [ i ! i r I l ! I 1 I 4 l I .. ~-··. where Q is the flow (assumed to be steady), A is the active cross-sectional area. of flow, x is the longitudinal distance along the channel, h is the water d.epth, g is the acceleration due to the gravity, and Sf is the friction slope. In addition the the initial condition, boundary conditions at the upstream and downstream sections of the reach must be specified. At the upstream boundary, the reservoir release pattern provides the necessary boundary condition. The downstream boundary condition may be, and was, specified by the stage-discharge rating curve for the downstream end of the reach. 4.0 BASIC DATA Two release patterns assumed to represent near extreme summer and winter power peaking operations for Watana were used in the analysis, assuming no downstream project (Devil Canyon dam) and open water flow conditions. These release patterns are shown in Table 1. The drainage area downstream from Watana also contributes runoff to the Susitna River. This runoff, termed herein as 11 intervening flow", was estimated based on the drainage area ratio using natural streamflow at Gold Creek. The streamflows selected are those typical of summer (represented by August) and winter (represented by December) in an average year. Table 2 shows the estimated intervening flows for each sub-reach of the river between Watana and Sunshine. Exhibits 1 through 5 show var~ous sub-reaches of the r~ver and the locations of cross sections used in the analysis. The cross section data used in the analysis were used in the Instream Hydraulics Study (2). 420071 3 ~~ .. [\ t l I I I' l I l I i ' I f ·n, ) ~ .·'.'' / r f . ('· ,, <,; 5.0 ROUTING AN[j RESULTS Att.enuation of discharge and r1.ver stage by the reach between Watana and Devil Canyon is insignificant because of the steep slope of th~ river and the narrc~ canyon confining the river. Therefore, the routing w~s carried out for the reach betwe3n Devil Canyon and the Sunshine gage, with the reach divided into two sub-reaches as described below: 1. Devil Canyon damsite to Talkeetna upstream of the confluence with the Chulitna River (52 miles). Cross-section data at the 63 locations shown on Exhibits 1 through 4 were used. The values of Manning's "n" used ~n the analysis were those obtained from the Instream Hydraulics Study (2). The reservoir release patterns provided the upstream boundary conditions. At the downstream boundary, the stage-discharge rating curve at cross section 3 just upstream of the con£1 uence with the Chulitna River was used to define the boundary condition. The rating curve was obtained from the Instream Hydraulics Study (2). Exhibits 6 through 17 show the routed discharge and stage hydrographs at six locations along the sub-reach. Table 3 summarizes the daily stage fluctuations at each oof the six locations for each discharge pattern. 2. Downstream of the confluence with the Chulitna Rier to the Sunshine gage (14 miles). Cross-section data at the 11 locations shown on Exhibit 5 were used. The cross-section data and channel roughness were also obtai~ed from 420071 4 !) J I I I l I I l'' J ,, l' / l I· l I r r ' r ~.·r. l r " ~· ,\_ " ''\:,, ~\ \.\ ' ' the Instream Hydra~).ics Study (2). Th<a routed hydrographs at cross .\ section 3 in the fit;\f: sub-reach were used to define the upstream boundary condition. Th,., downstream boundary condition was defined by the stage-discharge rat it,'; curve at the Sunshine gage. Exhibits 18 through 23 show the routed discharge and stage hydrographs at three locations along the 1ub-reach. Table 4 summarizes the daily stage fluctuations at each of "'he three locations for each discharge pat te!rn. The result of the dynamic flow ro •.ting as presented in Tables 3 and 4 indicate that attenuation of the d~scharge and stage fluctuations by the channel storage downstream frotn the project is relatively small for the sub-reach upstream of the confltence with the Chulitna River. Thus considerable fluctuations remain in ·hat sub-reach. However, the fluctuations are significantly smalle7 for the sub-·reach downstream from the confluence with the Chulitna River to the Sunshine gage. The fluctuations downstream from Sunshine .rould be even smaller because of the wider channel and additional inter\ening flows. 420071 5 I 1 ! I l f i i I ( I ! ' r I i, r ; . ; '1 • 1 l . i i l F I ! ~ i t REFERENCES ' ( ~ ~. • • r r r r ,~ r· ' r I r f ~ J f 1 J : NO. 1 2 420071 c REFERENCES TITLE Fread, D. L., 11 The NWS D&\1-BREAK Flood Forecasting Model" National Weather Service, NOAA, Jan. 1982. Harza-Ebasco Susitna Joint Venture Instream Hydraulic Study, "Lower Susitna River, Water Surface Profiles and Dis charge Rating Curves", Preliminary Report, Oc tobe.r 19 83. 6 0 C.:, TABLES i ' 1 ,, r r t I' : (_l :! ';;: l ' ' ~ ~I TABLE 1 "' . Near Extreme Power Peaking Operation Hourly Release Pattern for One Day (cfs) r Tll1E SUMMER OPERATION WINTER OPERATION (hr.) Watana Watana r: 2185 2185 (1) (2) -- r· 1 8,602 6,090 2 8,062 5,360 r 3 7,561 4,710 f ' 4 7,407 4,345 5 7,291 5,035 f1' 6 7,561 7,265 l 7 8,718 9,500 p· 8 11,978 11,285 i' 9 11,843 12,890 f 10 12,171 13,195 ' f "~ 11 12,884 13,155 12 13,019 13,095 13 12,826 12,990 14 12,634 12,890 15 12,634 13,135 16 12,691 14,050 17 12,846 14,050 18 12,961 1L~, 050 19 12,441 14,050 20 12,036 13,745 21 11,843 12,665 22 12,036 11,285 23 12,961 9,380 24 9,895 7,045 r ' r ' r r r! fl., t TABLE 2 Estimated Intervening Flows Reach Between Watana -x-sect. 68 (Represented at x-sect. 68) Between x-·sect. 68-50 (Represented at x-sect. 58) Between x-sect. 50-24 (Represented at x-sect. 35) Between x-scct. 24-3 (Represented at x-sect. 11) Between x-sec.t. 3-2 (Represented at x-sect .. 22) Between x-sect. 2-0.001 (Represented at x-sect. 1.1) During Sunnner Operation (August) (cfs) 1,600 700 300 500 22,200 9,270 During Winter Operati·on (December) (cfs) 110 80 40 60 1,460 840 I' p· " I rn, ,-. ·.e \) r . . r '• r· [~ p ~ J ' ' rl I ' t rr \I r f ' ,, , . [! I: TABLE 3 Range of River Stage Fluctuation (ft) Devil Canyon Damsite to the Confluence Wlth Chulitna River Location x-sect. 68 x-sect. 55 x-sect. 44 x-sect. 30 x-sect. 18 x-sect. 3 River Mile from Mouth (mi) 150.2 141.6 136.4 127.5 113.0 98.6 11 Assuming open water condition. -- --~-------W~a=t~a=na 2185 SUMMER OPERATION WINTER OPERATIO~/ 1.9 4.2 0.9 2.1 1.5 3.0 0.7 1 .. 1.1 2.4 1.6 3.1 l I i k::: { I I I I I ! ,, 0 r~ I ; " l.- ',1 , ·,,-c..,-c?'''""'·-·~----------------- TABLE 4 Range of River Stage Fluctuation (ft) Confluence with Chulitna River to Sunshine Station Watana 2185 Location River Mile from Mouth SUMMER OPERATION WINTER OPERATIO~/ x-sect. 1 x-sact. 0.3 Sunshine gage station I •) ,m~ 97.02 94 .• 23 83.9 ll Assuming open water condition. 0.1 1.4 0.2 1.4 o.s 1.4 ' I l l l ! J I 1 l J i I I ~ ~ l ! i ' f.¥7 j \ l .0 I '· 0 i) D -. c ... ~ /J .. , 0. (J EXHIBITS 33 -,~·-- ~-333 I ~========= . .a. • ~ =-' • .:_:··..a -..a IS> '-~ I . - LEGEND River Cross Section ------River Cross Section For Which Discharge ancl Stage Hydrographs are Prepared I-IARZA -EBASCO Susitna Joint Ventt~f"-e • JamJary 1984 •• ~ • :-. 1'o •• ~: :_:. .~~ r~ '~ : • • P : RIVER CROSS SECTIONS USED IN DYNAMIC FLOOD ROUTING I I I I I I IIIII I I [ [ [ r f I LEGEND ----River Cross Section ------River Cross Section For Which Discharge and Stage Hydrographs are Prepared HARZA-EBASCO Susitna Joint Venture • January 1984 ··. -.. ) -:."' t ';- .. -'--.. -~ ~ • l .. --,- RIVER CROSS SECTIONS USED IN DYNAMIC FLOOD ROUTING I r I I 27 . -. ' . ' I ·----~·' • .3-! J ~. LEGEND River Cross Section ------River Cross Section For Which Discharge and Stage Hydrographs are Prepared HARZA-EBASCO Susitna Joint Venture • January 1984 E I a e U:: ,) / ;r· ~-?!"~ 1 ;..ri._, , _ __.- • l ;. I ' I '·-J . ;. 2! I _-:> ., I ! i -. -~· .. ,- RIVER CROSS SECTIONS USED IN DYNAMIC FLOOD ROUTING m X ::c: C:J ::j w I LEGEND ----River Cross Section ·------River Cross Section For Which Discharge and Stage Hvdrographs are Prepared HARZA-EBASCO Susitna Joint Venture • January 1984 RIVER CROSS SECTIONS USED IN DYNAMIC FLOOD ROUTING ,._ .. --- ;;: LEGEND River Cross Section ------Cross Section Taken From Topographic Map HARZA-EBASCO Susitna Joint Venture • January 1984 .. RIVER CROSS SECTIONS USED IN DYNAMIC FLOOD ROUTING f i m X :r: IXJ =i U1 J t' 23 ,......._, l-w w LL 22 ..__,.. / '-. I I -I w 21 1/ f <...:) <C I l-I (f) ,/ 20 15000 I ....-..--.. (f) j l.L. 1/ 0 '--' l iOIJOO I v ..,.. 3 0 _j lL 5000 0 3 NOTES: RFi __ ----...... · ~~!""". • --~~----· • ~-~· =~-.~ .. :~.::-::~•;~ifi:iiiura·MI.W--•nrl :-. .. - ........ -,..._ ........ ~II" .......... ......... / ........~ v I' _\ \ I I 1\ 1/ ' I ~ / ......... I .......... ~ v / ..... -f.-~ L v ......., I"" .... v ~ v -- \ I \ 1/ \ I ' ~ v -..,.. -' 6 9 I 2 15 . 18 21 24 27 30 TIME -CHOURS) 1 • SUMMER SIMULATION 2. SECTION NUMBER 68.0 3. STAGE DATUM ELEVATION AT 830.00 FT. M5'L . .. ]Jilj ~ilitf .. a. -nJIL. G . .. ~ -'·' ---....... -... ' 33 36 ,c ,·. ~ .......... ~ / ~ 1\ \ \ ,· \ ' \. r-..... .......... ......... , I L < ....... 'f' \ -- \ ~' \ ·~"" ""-..... ' 39 42 45 48 .SI ALASKA POWER AUTHORITY SUSITNA PROJECT I SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE CHICAGO. ILLINOIS II JAN 14 l ~- ; ' m X :I: ' •T .; · .. · \ '' ......... ·.' >. << ··;. .·....-- ,~,--------~----·----~---~--~---.,...,....-----.. -~---~ -.. :-"iii~ ~-:&II ;... .. "1" ~;~~f ·• '· ~ -· _.,_ ··~ -· I r fj ' ' J ' ' C• ( 9 I\_ ,........ l-w 'i w I"':" . LL ~ r--r"... ./ r--~ !/ ~ ~ / -I'.. ...__, v ........ v " v :' v " Jr-1--Jl--8 1/ Ll. I \ I ' '{ '~ w ,1 1'. ) C) ) 1"-i/ f' <C l/ !'... 1/ ' ~ ~ (f) ' 7 20000 .,--.._ (J) LL 15000 u v -... ·..., ~ v -""" ....,. r-.... .-' r--= ..__, . ) ~ ) [\ II ' 1/ ' ! " J '\ ) 3 v .......... r--. v I......., t'-oo. 10000 t--I" r-0 ,_1 LL 5000 j 0 3 6 . 9 I 2 IS 1 8 21 24 27 30 33 36 39 42 45 48 s'• TIME -CHOURS.) NOTES: 1 • SUMMER SIMULATION AlASKA POWER AUTHORITY 2. SECTION NUMBER 55.0 I 3. STAGE DATUM ELEVATION AT 735.30 FT. MSL SUS lTNA PROJECT SUSlTNA RIVER RIVER STAGE FlUCTUATlON HARZA-ESASCO JOINT VENTURE: CHICAGO, ILLINOIS II JAN 8 .. - 3 l 0000 0 _j lL 5000 - 1/ :---t"'-. 1/ "' v v '" IL" ["-.., v l ~ J I \ I v ~ v j_ ' i ,, \ I v r\ I \ -v !'-... .. v --... ~ -~ v ..t.:. ..... j L\ j 1/ ' 1/ I .. ~ ) v ....... ~ v -~ 0 3 6 9 12 1 5 1 8 21 24 27 30 TIME -CHOURS) NOTES: 1. SUMMER SIMULATION 2. SECTION NUMBER 44.0 3. STAGE DATUM ELEVATION AT 675.00 FT. MSL [L 1--r"-.... v 33 36 ~ ·, I " v [\ < ~ \ ~ ' 1'\. ' . r\ ·. \ - ......... "-""" !'-... 1\ ' I ' ....... """"' ~ . i. ' i I 39 42 45 48 51 ALASKA POWER AUTHORITY SUSJTNA PROJEC! SUSITNA RIVER RIVER STAGE FLUCTUATlON m ~--------------------~ X HARZA-EBASCO JOINT VENTURE ::r: a1 ~------------~------~ ~ CHICAGO. tLtlNOIS -, ~----------------------------------------------~--------~------------~ ~ - 10 ,-..... I- w w LL '--'" lL 9 v ~ I w v C) -v <( I- (f) 8 I I 20000 ,......... (f) LL 15000 0 .Lr-........... -'-v ! / 3 10000 .,...._II 0 :- _j LL 5000 3 6 NOTES: 1 • 2 . 3. . .,.. - . . V '"' I' !'-, f\ " ~ . I""' ~ l~ f'\ t'-.. r--.. - - 9 12 15 I 8 21 24 27 -·--·-·-·--· ·-·---~~---~-.. :~--L~ -~ ... , e en~ ;:; ., itfiililf111Mlll .•• I v ) 1/ / __.I 30 ~ .......... ~,_ ·~ ·.~-... ·-1 ~ ~ ~ ~ -~ .!!:! ~ aJJ .. .· I -~ 1/ t--· ......... v ...... L.,. 33 36 39 42 '" ~ I' 1"\. 45 1\ i' ~ ~ 48 . 51 i ~0 1 TIME -CHOURS) SUMMER SIMULATION ALASKA POWER AUTHORITY SECTION NUMBER 30.0 SUSlTNA PROJEC! STAGE DATUM ELEVATION AT 578.40 FT. MSL SUSITNA RIVER RIVER STAGE FLUCTUATIQN HARZA-EBASCO JOINT VENTURE CHICAGO. llllliOIS Ill 4Mf ··I - . 10 v -..... I !". ,....... 1-\ w If \ w J lL 1/ f\ -...· v r\ 9 j J v w 1--v ' C) <( 1- (_f) 8 I I I 20000 ,....... (f) LL 15000 ~ 0 / v f"'o....... -...· v ~ ! I ~ V' ~ 3 10000 v 0 ,_j LL ~ 5000 I 6 9 12 15 1 8 21 24 27 TIME. - NOTES: 1 • SUMMER SIMULATION 2-.. SECTION NUMBER 18.0 3. STAGE DATUM ELEVATION AT 452.00 FT. MSL ---..,._ ----- v J If J 1/ v A ["-.. "' v I / I-' v 7- fT --t-<-. v 30 33 36 CHOURS) . l D ""'"" -. " --""''" ' .... , ~ ~·" .J I I ['..... -I .......... ~ " I ['-... 39 42 45 48 51 ALASKA POWER AUTHORITY SUS I TN.'-PROJECT SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE m x· J: o:J I CttiC."iO. lltl!fOIS I·· JAM-~-'~ -•.. ·----==--~=J-~:~:..::::.:::;:_:.: 13 v ~ v t""-.... ,.-.. [..... .... r-- I--......... w ~~ ,,I\ w _L \ lL '--" ll r\ l 2 I( \ I J i w l f\ C) v 'i'... <( I--I I' ......... (J) -/ l 1l I I 20000 ......... U) LL. u "--'' v-" -r-.-. 15000 v ~ ['-" i .. i. 3 v ~ 0 L ' '\. _j lL. I/ '( ' r--...... \0000 r----r 9 l 2 l 5 18 21 24 27 30 33 T I fv1 E -(HOURS) NOTES: 1 • SUMMER SIMULATION 2. SECTION NUMBER 3.0 3. STAGE DATUM ELEVATION AT 332.70 rl. MSL -- l v lL . _1 1/ 'i ) I '( j v v v _j_ v I / 36 39 •. - 1.' '" .. - v ' / """ r---~-1 - • I --r--.. 1--. ' .. 42 45 48 51 --= ALASKA POWER AUTHORITY . SUS) TN.~ PROJECT I SUSITNA RIVER RIVER STAGE FLUCTUATION f-· HARZA-EBASCO JOINT vENTURE t:HICA~O. llLI!fOIS 1111 JAN t41 ~ .. ~,.\"' v' < m X ! .OJ -1 ... _,. D (( () - ·li ~ c 'T•« (• : ·"" !! 22 ~.--"" -........ -/ "' ./ "' ~ II" ito.. -. ..--,. 7 ' / ' 1--21 w I !\ 7 " I \ I " w II ' 'I lL J I\ .......... 20 1\ J ' I \ I ' " I ' !I . 1\. I "' J '\. 19 I .'\ I I I \ w II ' " C) l ' ' <t:. " I r..... 18 -I ' I 1-· ll 1"-1/ ' (f) • 17 ~ . 15000 I / v -~ v ~ .....,.. v 1\. v r-. f\. (f) v ' 1/ ' LL. 10000 I \ I 1\ u ' v -·~ ..._ .... I i\ I I 1\ '/ ' 1/ '"' I / .......;. / ...... '- 3 5000 / ' """ j ' r-..... '~ ....... 0 . _j LL. 0 I I - 0 3 6 9 12 IS I 8 21 24 21 30 33 36 39 42 45 48 TIME -CHOURS) NOTES: I . ~41NTER SIMULATION ALASKA POWER AUTHORITY 2 . SECTION NUMBER 68.0 3. STAGE DATUM ELEVATION AT 830.00 FT. MSL SUSITNA PROJECT I SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE CHICA;Q, llliHOIS -~~~ JAN 14 ., 9 ,_..._ 1-w 8 w _.. ..,, -...,_ I ...... 1'-,. LL I ...... ,.__., !/ " 7 " I '-... J I tLJ ) / C> 6 <( v 1- (f) s lSOOO ./ ......... ' ;/' "\ ........_ (f) I ' LL 10000 1/ ~ u J \ ,.__., L '\ I r-...... I .. l/' .3 5000 / 0 _J i LL 0 0 3 6 9 12 I 5 I 8 21 TIME - NOTES: I . WINTER S1MULATION 2. SECTION NUMBER. ss.o 3. STAGE DATUM ELEVATION AT 735.30 FT. MSL _, I-""" J I I I ......... I ' ~ ~ " / .. v I I '· /_ I 1'-v -... ~ / I 24 27 30 33 CHOURS) ... • e• ~ .. . _o,--"-~ ··~.---_--:-:---=:;:--~ -.... ...., " " I' ~ . ./ ~ ' " r\. \. \ -l\. ' ........ . ' I' . 36 39 •42 45 48 ALASKA POWER AUTHORITY SUSITNA PROJECT SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE CHICAGO. IlliNOIS I·· .IAN 14. m X :::t: .en =i ..... w I) . () --·--·-- 8 '"""' ~ 1-- J--~ ' w 7 L 1""-L ' w I \ J lL I \ 1 '--/ I \. I 6 II I \. I I I w I .'\. l I 1'. 1/ (_I) 5 ...... <( I \. I I-I ,/ (f) If / 4 ,_ ~ . 15000 / ' I r--. v " ~)':1 (f) I '\. J LL. 10000 I ' I u I ' ; '--'' :; I ~ J -I ' l ! ...... r-, ,) ~ v ' r--v 3 5000 , 0 _j LL 0 0 3 6 9 12 I 5 I 8 21 24 27 30 TIME -(HOURS) NOTES: 1 • WINTER SIMULATION 2 . SECTION NUMBER 44.0 3 . STAGE DATUM ELEVATION AT 675;00 FT. MSL .iflid·· ; . ..~-, c~ -· ... 1:' I A.:.: \ ~ ·--:::-::..:_,; ..... ....... ' 1 ......... \ '\ \ ., ·-\. . - \. " "' ~~ i v ' " 1'\. ' . ' '\ ' ......... 33 36 39 42 45 48 5t ALASKA POWER AUTHORITY SUS ITNA PROJECT I SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE CHICAGO. 1LLINOIS II JAN IH ' _,..\ :. '',' l . ,,; \) m X :t: ,, '" >~ -·--·-- ~ ;~ ,, ~~ t 0 _,, . . . ' ~ --" 1- w w / ........ / -~--""'" .......... -, / ' -........ ~ -LL 9 I "' / , .......... L' i'... ' ......__. ' .... I\. t ' L ' I\. I ' I ' "' l 1\. w 8 I \ I '\ [/ ' I ., C> ......... . -, ,-:: v <.1:: ' - 1-I (f) ./ I i i 7 . I I I • I 15000 _I.TI I I liD -/ !"-.... ~ r--.... I J ' j ' ,--., (f) I \ I \ lL 10000 I \. I ~ u II I ' ' i'\. 1\. ........... '\ ' 1 J l . '" I ' :-.... ! '/ ~ ... " '{ 1/ -3 5000 ...,_. 0 ., _j . LL 0 --, I I » 0 J 6 9 12 IS t 8 21 24 27 30 33 36 39 42 45 48 51 TIME -(HOURS)· . NOTES: 1 • WINTER SIMULATION ALASKA POWER AUTHORITY 2 . SECTION NUMBER 30.0 I 3. STAGE DATUM ELEVATION AT 578.40 FT. MSL SUSl TIM PROJECT SUSITNA RIVER RIVER STAGE FLUCTUATION HARZA-EBASCO JOINT VENTURE CHICAGO. IlLINOIS 11 JM. 84 10 ....... ........ ..... _...._ 1-/ .... w 9 / ""'r-... ' w . I ~ LL I ' '--"' If "' 8 I I I w I C) 7 / <( / 1- (f) -· 6 I 15000 -!-- ~ 1'-- / ' ~ r--. '/ " (f) .. I ...... LL. tOOOO . " u I ' !'.... "---" J l I I 3 / 5000 I 0 _j LL - 0 I 6 9 I 2 IS 18 21 ~ .. ~ 27 TIME - NOTES: 1 • WINTER SIMULATION 2. SECTION NUMBER 1 8. 0 3 . STAGE DATUM ELEVATION AT 452.00 FT. MSL / / J J I "\. ) ............ I ~ 1/ 1........_ / --- ! I / '--1-• I 1/ ' J ~ 1/ ....... ~ v - 1 30 33 36 39 (HOURS) ,_ t----~ ~~~:-·----""~-,., . ..:,.::o.t"~ ........ -""' "" .... ' " I • ---~ ...... ~ ' -, 42 45 48 Si ALASKA POWER AUTHORITY SUS ITNA PROJECT SUSITNA RIVER RIVER STAGE FLUCfUATION HARZA-EBASCO JOINT VENTURE CHICAGO. IlliNOIS Ia JAN ••I ·~ }.: 0 I ''= ' :.:._l -- --J 't' .... ''·-"' m X :I: txJ =i --m 1 3 ,-.... ._ 1 2 w w LL ll ....._, l to w C) <( 9 1-· (f) B 15000 ...---. (f) LL. 10000 u ....._, ! ~ 5000 0 _J LL 0 - 1- ' 1 L I i/ / I I I 1/ 1- '/ ;..,.,.,. ... ~ t _ _, L. If I -~ I I ---~ L J I v I L v 1/ ~ -t= 9 12 I 5 18 21 NOTES: 1 • WINTER SIMULATION 2 . SECTION NUMBER 3.0 -~ ....... I'.. . ~ ~ " !'.. I 24 27 TIME - 3. STAGE DATUM ELEVATION AT 332.70 FT. MSL l ~·-· .--·~--. L ~ J "' L " I' ,. I -L "' I ro...... If ....... /' .........,._,_ L I "" I .......... " If .... " / f".. II """ ~ !--.. 1/ 30 33 36 39 CHOURS) .·~ \r ' -. " ·' -,· ·• . .. -. =.:1\ ,·: \) i I i I ..,..,. - I \ 1 42 45 48 51 .... ALASKA POWER AUTHOfUJY SUSITNA PROJECT I SUSITNA RIVER ::::: RIVER STAGE FLUCTUATION ,,.___ HARZA-EBASCO JOINT VENTURr;· CIHCACQ. li.UNDIS Ill JAN ~ .. I I m X J: OJ =i I l I 17 - '· ! ~ . ~ ll : ll i ~ i 1- ' r w I w I lL .....,; 16 /v '-... / ........ / """" v ........ ! I w .. I <.:.> . . . < 1- (/) i IS 50000 ,__ ---~ r----" L'.-. / K: _L r .......... / I'.. 1 I I'-v r---v I'-['.... -45000 v --f-.1 ..-. L (/) lL / v (.) ..__, 40000 ., I 3 0 -'' _j lL 350()0 . I 30000 ·~, 9 IS 21 27 33 39 45 51 57 63 69 75 81 87 93 99 lOS TIME -(HOURS) NOTES• I • SUMMER SlHULATlON ALASKA POYER AUTHORITY 2. SECTION NUMBER 1.0 SUSIINA PROJECf I J. STAGE DATUM ELEVATION AT 320.40 FT. MSL SUSITNA .RIVER RIVER STAGE FLUCTUATION HARZA-E6ASCO JOINT VENTURE CHICACOo ILLJ•OII I• ....... , --'~ "'~-. ~ .. ~---' .. ,._.__ .. ,...,_ .. .,. ---·--· _____________ , _____ ,~, ..... ~ f2,.,e"#. ~ t----: {--· t---:= tH .J c.;.;;;; .~I 16 ,..... I- ~ ' w LL ....... 15 I w C) <C t'_ ............. L ........... I-I en !-...... v / 14 50000 f r--~ ............. " v 1 !"-. v 45000 1/ ,..... L en LL ~ u .._, 10000 I 3 0 --1 LL JSOOO JOOOO 9 IS 21 27 JJ J9 -45 NOTES• 1. SUMMER SIMULATION 2. SECTION NUMBER 0.3 3. STAGE DATUM ELEVATION AT 304.00 FT. MSL . -~ .. ... -·" -· '".,..,_ ...... .,,.,..._. ·-----·- c·_:J r;r~ E::i r:::li ~eli iiit3i - - "' ""' r--... v !"-. ' ~ .......... v .......... ~"-..... v '"' -r- 51 57 6J &9 (5 fill TIME -<HOURS> ~~~iii / / v v 97 .. ' ... t"l ,_ ......... j'-..., r-- .......... r-..... . 9J 99 105 ALASKA POYER AUTHORH't SUSIINA tftOJ£CI I SUSJTNA RIVER RIVE~ 5T~GE Fl~CTUATION '"' HARZA-fBASCO JOINi 't'E!IIJURE fiiJt m X J: m =r CIIICAIO· uu.ou I• J .. •<J. -..-.......! I (f) lL (_) ......... 3 0 _.J lL !1='11D'** N 19 t-w w lL .. .-- 18 w C) <C t- (f) 17 50000 45000 40000 JSOOO -'\1 J ......... / " / ~""'---/ .......... I "'\ "' v "'\ I/ "'\ v "'\ "'-"' ~ II ........... v .......... v "' ~ J !'--.... r...... r---... r...... 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SU~MER SIMULATION 2. SECTION AT SUNSHINE GAGE STATION 3. STAGE DATuM ElEVATION AT 263.00 FT. MSL 69 75 81 87 9J 99 105 ALASKA POUER AUTHORITY SUSliHA fftOJECI SUSl HM RIVER RIVER STAGE FLUCTUAT10N HARZA-EBASCO JOINT VENTURE ·- ....... 1-w 13 w I.J_ ....... . / -v ~ /-/ \ --· I ,/ 7 \ I· 7 ·---'\ w (.!) <( 12 1- l-t----\. j \ l I \ l/ J. (f) ~ v f-- I 11 v -- '· • 20000 ' ~- -1-- " 15000 -;;;... ~ / - 7 i\. ....... (f) I.J_ 7 " I ·-· -' 1/ I 0 10000 3 0 - '" I ' " I " !' -r " -" :--1/ '/ -_J Lt-sooo ... . 1----r--·----. 0 9 lS 21 27 33 39 45 NOTES• 1. YlNTER SIMULATION 2. SECTION NUMBER J,Q 3. STAGE DATUM ELEVATION AT 320.40'FT. MSL - .......... r--..... \. /, \ I \ 1\. I \ ./ . " ' '\ I i\. I ' " I " -.• -- 51 57 63 TIME -<HOURS)' /.__ / I" / - 69 --------------------------------~ . -- ........... .......... / \ I" /· '\ I \ 1 r-... I ..... v .. - ' / ' / "" I "' f_ ' /i / 'f-'""' - 75 81 e:r -/ ........... ............ \. '\ \ \ \ ' ' '\ ... , ' f- .. !!3 99 105 ALASKA POYER AUTHORITY ,SUSIJNA r_~O-JE_cl--1-----~ fil SUSlTN1't RIVER X RIVER STAGE FLUCTUATION :C f----------1 OJ HARZA-EBASCO JOINT VENTURE =i ... _ -·-_ ·-··--------··---------· ;~;co. UL~~;~J~~~-~~-----' -~ l (fJ LL (.) ....... ~ 0 _j lL --- 12 ,....,. 1-w 11 w LL w C> 4: 10 1- UJ 9 20000 l501i0 10000 5000 0 f--v --- - 1- 9 I I I I I I I --- l I I 1 / v ·- IS I ......... v .......... \. ll \ - I i·--f--· I " I ..... .. - ·--· 21 27 NOTES: l. WINTER SIMULATION 2. SECTION NUMBER 0.3 1\ \ I \ I [\ l \' I i""--...ll - ' '\. ' I " v r---.... / - JJ 39 3. STAGE DATUM ElEVATION AT 304.00 FT. MSL -/ I ·--.. ·-'-- :,....--'" I l 45 -·- - - --~ .......... [\ '--v .......... """ .......... --~ / \ I \ I \ ~ v 1\ v \. ' I I ' \ I \ I \ I [\ i/ \ I \ v .......... .,,_. 1--. ' v --' / -. ..... I ' J ....... .'\. II ' I " ~ r'\. ' ...... I I .......... I " i""--... v -- . 51 57 63 69 75 81 87 93 99 lOS T I f1E -(HOURSJ ALASKA PO~ER AUTHORITY SU~IlMA fft0J£CI SU"\ TNA RI·VER ~ RIVER S'f,r.E FLUCTUATION. :C: -----,..,j. ~ H~RZ~-EB~SCO , '~.I NT VENTURE: --·--··-·---· ·-------·------·-.;;:;~:-llll~lll•·Nf~ --= . I) ·-f 1\) 1\) en LL. u ........ 3 0 _, LL. -- -------··--·· ------- 13 ,..._ 1--w 12 w -I 1--' / 1--['-... / t--r-..... ./ .......... -----r ~ --v f'--i"' v ~ v 1'-. L "' 1\-1-- l_ --.-[\. ---I [). I v 'I 1\ 1'1. 1 \ j ·-\ i '\ I .• LL. ~ r"\ I f\. I I f\. I n / . w C) [_ \. ~ / -\ / " / 1/ \ L - ............. <C 11 1--I en L . 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SECTION AT SIINSHINE GAGE STATION 3, STAGE DATUM ELEVATION AT 263.00 FT. MSL ·"' ___ . ..._ ____ --! m SlJSITNA RIVER X RIVER STAGE FLUCTUATION ~ HAPZA·EBASCO JOI~T VENTURE OJ =i t-) (A)