Summary of 1976-77 Reservoir Regulation Activities
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MISSOURI RIVER DIVISION OMAHA DISTRICT SUMMARY OF 1976-77 RESERVOIR REGULATION ACTIVITIES ... •''' MISSOlffii RIVFR DIVISION OMAHA DISTRTCT SUMt4!\RY OF 1976-77 RESERVOIR REGUlATION ACTIVITIES SECTIONS PAGE I, PURPOSE AND SCOPB 1 II. RESERVOIRS IN THE OI.'AI!A DISTRICT • 1 III. WATEH SUPPLY 2 IV. RESERVOIR ACCOHPLISH!IENTS 2 v. RESERVOIH OPERATIONS VI. REGULATION PROBLE~lS 6 VII. RESERVOIR REGULATIO!I f.IANUALS 7 VIII. DATA COLLECTIOn 8 IX. HESEfJ\CJI AND STUDIES 8 • x. TRAINING AND METHODS 9 XI. PERSON:t!RI" MID F1JJIDING 9 INCLOSURES 1. Map of Flood Control Dams. 2. Project Data Sheets. 3. Total Number of Flood Control Reservoirs in Omaha District. 4. Water Supply Hap. 5. Regulation Sheets for Past Year. 6. Manual Schedule. 7. Organization Chart, Omaha District. 8. Organization Chart, Reservoir Regulation. DAM NO. 9 - STAGECOACH LAKE OGOHR 197:} A POOl H. 1178.0 H. M.S.L DAM NO. 17 ~ HOMES PARK LAKE DAM NO, 18 · BRANCHED OAK LAKE 1-!ISSOUHI RIVER DIVISION 0: 'A!' A DISTRICT SUVc'ARY OF 19"(6-77 RESERVOIR HEGULATiot! ACTIVITIES I. PURPOSE AND SCOPE. This annual report has been prepared in accordance 1·rith paragraph 12-C of ER 1110-2-llrOO to summarize siEnificant tributary rese>rvoir regulation actjvities of the Omaha District. The period covered is August 1976 through July 1977. II. RESERVOIRS IN TEE m.!f\HA DISTRICT. a. Reservoirs vi.th Flood Control Stor~. There are 33 tributary reservoirs with allocated flood control storage covered in this report. The dams are listed belov. Included are 22 Corps of Engineers dams and 11 of the Bureau of Reclamation da.ros. The reservoir locations are shovm on Inclosure l and nertinent data are presented in Inclosure 2. Inclosure 3 tabulates the mmerical buildup of Corps reservoirs in the Or1aha Distr:ict, Pictured on the preceding pages are the Salt Creek Dams Numbers 9, 17 and 18. As summarized in Section IV and V, the low level r-ate at Dam No. lil was opened to make relcaS(:.>S for dovmstrea.m irrigation wn.ter rip,-hts, As summarized in Section VI, Dams 9 and 17 were the ob,j ect of ease ment inquiries. CORPS OF EIIGIHEERS BlffiF:AU OF RECLAMATION 1. Bear Creek Dam 23. Boysen !Jam 2. Bowman-Haley Dam 24. Canyon Ferry Dam 3. Bull Hook Dam 25. Clark Canyon Dam 4. Cedar Canyon Dam 26. Glendo Dam 5· Chatfield Dam 27. Heart Butte Dam 6. Cherry Creek Dam 28. Jamestomo Dam 7. Coldbrook Dam 2G. Keyhole !Jam 8. Cottonwood f!prings Dam 30. Pactola Da.r1 9. .Kelly Road Dam 31. Shadehill Dam 10. Papillion No. 16 32. Tiber Dam !f 11. Papillion No. 11 33. Yellovtail Dam 12. Pipestem Dam 13. Salt No. 2 14. 11 11 4 15. 11 11 8 16. 11 11 9 17. 11 11 10 18. 11 11 12 19. 11 11 13 20. 11 11 14 21. 11 11 17 22. 11 11 18 !f Storage allocated for flood control ref(ulation by the Corfls >ras temporarily suspended in 1966 due to limitations placed on the spillway. b. Reservoirs Without Flood Control Storaee. There are two Corps of Engineers tributary lakes without allocated flood control storage included in this report. They are both subim~oundments of the Hissouri River Hain Stem Projects and were formed by the construction of relocations for transportation facilities and utilities. Lake Audubon, a subimpoundment of Lake Sakakawea, is located just northeast of Riverdale, North Dakota. The lake is a key feature of the Bureau of Reclamation's Garrison Diversion Unit. Lake Pocasse, a subimpoundment of Lake Oahe, is located near Pollock, South Dakota. The Bureau of Reclamation is planning to use the lake as a regulating reservoir for the proposed Pollock-Herreid Irrigation Unit. Both lakes are used for fish and wildlife and recreational purposes. Their locations are shown on Inclosure l and pertinent data are presented in Inclosure 2. III. WATER SUPPLY. Water supply in the Omaha District was generally much below average. There was little or no accumulative wl.nter snow pack and spring runoff in the plains area. Drought conditions prevailed much of the time in the mountains of Montana, 1-.'yorlinr, and Colorado and in the plains of Hontana, North Dakota and northern South Dakota. The high elevation snowmelt runoff was much below average. Inclosure 4 gives the percent of normal runoff at pertinent locations in the Omaha District. IV. RESERVOIR ACCOMPLIRHMFNTS. a. Corps of Eneineers Dams. None of the Corps of Engineers tributary dams were credited with flood control benefits during the period. Accumulative flood damages prevented hy Corps Dams are estimated as follows: FLOOD DAHAGFS PREVEN'l'ED Ill DOLLARS Dam 1977 AccUJ'lulative Total Bull Hook (Havre Project) 0 6,108,000 Spring Creek (Lake Pocasse) 0 33,000 Bowman-Haley 0 30h,000 Cottonwood Springs 0 0 Cold Brook 0 0 Cedar Canyon 0 250,000 Pipestem 0 3,400,000 Papillion Project 0 0 Chatfield 0 0 Bear Creek 0 0 Cherry Creek 0 157,000,000 Kelly Road 0 301,000 Salt Creek Project 0 CJ,7on,ooo Total 0 177 ,19'{ ,000 2 At Branched Oak Lake (Salt Creek No. 18), ~ated releaees were mane to pass streamflow for dovnstream irrip:ation durinr: J\u~ust. Septenher, June and cTuly. At 1'01-nnan-Falcy J,ake, ~a ted releases of anproximately 530 A.l". ;rere made for do;rnstream irrigation and livestock use durin~ August. At Chatfield, special releases >rere made to aid a Lahor De.y Float ~'rip. Lake Audubon and all the above )"lro,jects, excent the normally dry reservojrs of Bull Jiook, Cedar Canyon and Kelly Poac'l, and Bear Creek which is in the construction nhase, HPre used for recreation. Visitation days at the projects for CY 1076 and nro jected for CY 1977, along with available accumulative totals, are tabulated belo». RECREATION VISITATION PI DAYS Accumulative Initial Project 1()76 1977* to 1 P,,n 77 Year Bo>rrnan-lialey 28,520 54,150 636,740 l()h7 Cottommod Springs 21,()80 15,400 23,158 1()7li Coldbrook 32 ,l!70 19,500 751 ,lfio 1955 Pipestem 90,720 1D1,600 224,500 1C)'7ll Chatfield 287,680 350,960 60~,180 1976 Cherry Creek 1,232,970 l,l,5h,820 15,03h ,o6o J 959 Salt Cr. No. 2 30,000 II 4 171,700 " 8 17,300 II 9 15,425 II lD 30,0DO " 12 130,000 II 13 12,550 " 14 700,0DD II l7 2Dl,425 " 18 725, ODD (Salt Cr. Total 2,033,l10D 2,355,500 19,571,400 1()64) *Projected for year as of 1 September 1977. b. Bureau of Jlec1armtion. None of the Bureau reservoirs ,.rere credited 'rith preventinG floodinG durinv the :neriod. Accumulative flood dama[les prevented by the Bureau dams are estimated as fo11ovs: 3 FLOOD DAMAGES PREVENTED IN DOLLARS 1977 1977 197T Accumul~ttive Dam Local !>'fain Btem Total Total Clark Canyon 0 0 0 '3,665,000 Canyon Ferry 0 0 0 34,343,000 Tiber 0 0 0 29,670,000 Boysen 0 0 0 18,212,000 Yellowtail 0 0 0 10,214,000 Heart Butte 0 0 0 10,952,700 Shadehill 0 0 0 7 ,!124,900 Pactola 0 0 0 656,700 Keyhole 0 0 0 183,000 Jamestown 0 0 0 11,903 ,ooo Glendo 0 0 0 6,969,000 Total 0 0 0 127,193,000 All of the projects were used for conservation and recreational purposes. Hydroelectric power is generated at Boysen, Canyon Ferry, Glendo and Yellowtail. Low flow augmentation releases were made from Jamestown in August and September. v. RESEHVOIR OPERATIONS. ( a. Operations the Past Year. Individual project operation summaries are Inclosure 5. Significant reservoir operations during the period are summarized below. 1. Corps of Engineers. At Lake Audubon, during April, water was pumped from Lake Sak~tkawea to raise the Lake Audubon .;pool to elevation 1848, which is two feet below the future normal operating level. At Bear Creek, the dam emb~tnkment WitS closed on 19 July. Special measures were taken by the Corps so that this operation would not interfere with State water rights. The Corps obtained the use of a Veterans Administration water right to be able to fill the dead storap;e pool. During closure the contractor pumped streamflow (3 c.f.s.) through the outlet works while the dead storage was filling. This plan of action was decided upon following consultations with various State offices, Veterans Administration officials and local Denver interests. At Chatfield, the State of Colorado, through their Hater Commissioner, began to charge the lake an evaporation loss in Hay. I.' 2. Bureau of Reclamation. The lack of runoff prevented the joint use zones from filling in Boysen, Canyon Ferry, Jamestown and ¥ello,~ail reservoirs. Of the eleven Bureau projects, only Clark Canyon and Heart Butte filled their conservation pools. b. Operating Plans for August 1977 throup:h July 1978. 4 • l. Corps of Enp;ineers. Hi th the exception of Bear Creek, Cherry Creek, Chatfield and Pipestem, all Corps of Enp:ineers tributary druns have ungated outlets and no special plans are required. Evacua tion of stored flood water in these pro,jects will he scheduled as soon as practicable after each flood event. Flood releases from Pinestem Drun are coordinated with those from the Bureau's Jnmestown Dam. At Salt Creek Drun Ho. 18, releases to satisfy downstream water rir:hts for irrigation v.rere terminated on 5 August 1977. Next summer, releases again are expected to equ~tl the inflo;r up to 3 c.