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. f. s. At Bowman-Haley, releases of approximately 830 acre feet of water were scheduled from 3 to 22 Aur,ust as a result of a reauest from the.Governor of South Dakota to meet the emergency livestock, fish and wildlife, and irri gation needs in Perkins County, South Dakota alonr, the l!orth Fork of the Grand River. At Bear Creek, construction pror:ress of the ilrun will not permit intentional storar:e of water until late 1078. At Chatfield, additi.onal fill of the multipurpose pool will depend on the availability of free water or the ability of the state (local sponser) to purchase water.
2. Bureau o:f Rf>clamation. As in the past, the Bureau will continue to operate their reservoirs to meet flood control commit ments and to coordinate operations with other interests to achieve opti1:mm use of the water resource. Generally, all reservoirs ,,... ill be operated as ncar to the top of' thP.ir conservation pools as nossible. Pertinent special operatil:(~ plans are described as follm1s. Ro,'sen, Canyon Ferry, Clark Canyon and Yellm.Jtail Reservoirs renuire evacua tion and refill of Joint use stora~e for flood control based on mountain runoff inflow forecasts. Canyon Ferry Reservoir 1-rill he regulated (1) to be no hir:her than 379h by 30 November to reduce chancc:s of headwater ice problems and (2) as conditions permit to be no lover than 3781 prior to the sprinr; runoff period in effort to maintain a more efficient powerplant output. Tiber Dnm has maximum pool level restrictions iPlposed by an unusable spillway. In the fall of 1976, construction was initiated on a 5-year pro~ram to rehabilitate the spillway. Yello1.Jtail Reservoir will be re~lated (1) to be no higher than 3630 by 30 November to reduce chances of headwater ice problems and (2) to be no hirher than 3614 before the beginninr of the spring runoff. The snccial operation to measure seepave between Yellm.Jtail Dam a.nd its afterbay is again scheduled durinf': October. The current estimate is 80 c.f.s. Jamestown Dam will provide late summer low flow releases for pollution abatement if water is available. Shadehill Drun will be operated to draw the reservoir down to elevation 2266 (27, 500 acre-feet below service spilhray crest) prior to the sprinr, runoff. Replacement storare up to a combined total of 506,000 acre-feet can be made available in Clarl< Canyon and Canyon Ferry Reser voirs on a forecast basis. In addition to the. reservoirs covered in this report, other Bureau reservoirs, without allocated flood control storage space, will provide flood control by their normal operation of storing seasonal runoff. Some of these pro,lects are Gibson and F'rcsno Dams in Montana an 5 VI. REGULATION PROBLH!S. a. Dmmstream Channel Ca'_Jacitz.. Inadequate channel capacity is a problem below most of the tributary reservoirs. Encroachment, by natural growth due to low flows, by flood denosits left in place, and by human construction nnd Qr,riculture are common. In some cases project design ignored the existing channel capacity. A brief study outlining the operating constraints was completed in 1974. b. Low Flow Augmentation Hhen Not An Authorizerl Pro.iect Function. Inquiries and requests have been received from states, cities and other organizations for the release of water from certain pro,jects for other than authorized purposes such as irrigation, water supply, and improve ment of water quality. 'l'hese requests pertained to supplemental dis charges from the conservation pool or the retention of water and slow down of releases from the flood pool. Pro,jects significantly affected during this report period ;rere Pipestem, .Jamestown and Bo>rman-Haley. Prior to above average precipitation in Harch, the cities of 1.\itchell and Huron, South Dakota, for.nally requested release of water from Pipestem and .Jamestown Reservoirs to supplement their critically low water supply. These cities arc about 500 miles downstream from the projects. 'l'he travel time is about 7 weeks. Following heavy rains in March, this request was formally withdra1m. During drought conditions in the semi-arid region of northt;·rest South Dakota, releases from sto rage in Bomnan-Haley Reservoir were made as discussed in Section V. c. 1da.ter Rishts. The ever increasing population and prolonged dry periods in the semi-arid and dry subhumid regions have prompted considerable interest in streamflmr >rater rights. In the future, the demand for water may affect reservoir levels more than it has in the past and as a result the authorized project recreation function may also be affected, d. Reservoir Area Facilities. Existing recreational and other facilities in the lake areas impose operating constraints even though a right to inundate is inherent in most cases. No recreation areas were inundated by high pool levels this year. e. Easements in Reservoir Areas. The study of inquiries relat ing to new and existing easements '\-rithin reservoir areas continue to require a considerable time consuming effort. Reference paragraph IX-a. Some easement inquiries during the report period were: (1) the City . of Lincoln requested permission to build a sanitary sewer within a L supporting levee located in the upper left arm of Holmes Lake (Salt Creek Dam 17). The levee would contain culverts for passage of the City's estimate of runoff from a 50-year storm. This request was granted. (2) An architectural firm requested permission to locate an apartment d>relling on a previously acquired permanent flowage easement in the upper left arm of I'olmes Lake. The request to build habitable structures was denied while preliminary plans for street 6 construction were approved. (3) The Nebraska Game and Parks Commission requested permission to build a series of small dikes in the unper end of Stagecoach Lake for fish and waterfowl enhancement. This request was granted. f. Data Collection. The collection of current hydrologic data for regulation of the Omaha District reservoirs is performed hy the National Heather Service. Cooperation has been r:ood. However, the additional step between the observer and the user results in some delays and loss of pertinent observer comments. The sparsity of the number·of stations within the District is relatively high. g. Reservoir Gn.ges. The use of conventional bubbler-MnnomP.ter gar,es for poo1 level observntions has resulted in :rrtrrny erroneous readings. They require fr<>quent maintenance. The initial cost savings of installing a bubbler-r.wnometcr gage rather than a float-well gage over the lifetime of a project is questionable. h. Regulation Plans. \1'hen more than one ar;ency is involved in the regulation of a reservoir, there exists the problem of petting all the various offices within each agency to ar;ree to one final docwnented plan. Ho·h·ever, as a rest1l t of the ncu generalized flood control regulat~ions, uhicb were published in the Federal Register on 18 Hay 1976, this problem has been alleviated. 'Phese regulations are for use of storar;e allocated for flood control at reservoirs constructed wholly or in part with fecleral funds. These new regulations contain au lhori tati ve criteria and responsi bi.lities for flood control r VII. RESERVOIR RFGULATim; l''A!!UALS. The Reservoir RegulA.tion Section continues to spend as much time as r>ossible on manual writ·inr:. However, first priority must be assigned to actual daily reservoir r<'rulation activities and reports to higher authority. Durinr, the period coveren by this report (l) the Reservoir Regulation Report for ClA.rk Canyon was approved by MRD on 17 August; (2) the Fort Peck Manual was formally subrnitted for approval on 27 September and armroved on 5 October; (3) the Reservoir Regulation Report for Pactola was submitted for approval on 26 November and followinp: revisions ' 7 MRD for approval on 28 July. In January (1077) the Missouri River Division office undertook completion of the ftna.l mainstem manuals for the five remaining projects. See Inclosure 6 for future estimated manual submittal times. VIII. DATA COLLECTION. a. River and Rainfall Data. Stream ga~e readin~s and precipita tion data are received in the ~':issouri River Reservoir Control Center and the Omaha District Reservoir Regulation Section over the !Tational Weather Service Circuit C and RAUARC teletype syst"!ms. A Cooperative Reporting Network FC50 Program with the National \,Teat her Service pro vides financial support for reporting data from 61 gaging stations. These are all stations that were formerly operated by the Corns and are required for reservoir regulation purposes in addition to the regular National Heather Service stations. b. GeoloBical Survey. The cooperative stream gaging pro~ram with the seven Geological Survey Districts (Colorado, Iowa, Hontana, Nebraska, North Dakota, South Dakota and Hyomin~) :nrovides stage and discharge information for reservoir regulation purnos<>s. The program also includes sedill'ent, water quality and ground water records, snow course data and teiemeter maintenance. • c. Telemeters. Within the Omaha District there are 72 open line telemeters that are accessible from any telephone. Mcst of these were installed by the Corps or the Weather ~;ervice in Geclogical Survey river gares and flood control dam head1;ater p;ages. The Bureau of Rec lamation, the Weather Service and the Corps also operate a number of closed circuit telemetering devices. At the present time, the Automatic Hydrologic Observing System (AHOS) of the \>leather Service includes reports from two stations in Colorado, eight stations in Iowa, three stations in Nebraska, one station in Wyoming, and four stations in Montana. IX. RESEARCH AND STUDIES. During the report perioo studies by the Reservoir Hegulation Section anrl others hav<> included: a. Lake Audubon Studv. 'Phis is a study on land to be inunnated by the maximum normal, Lake Audubon pool (elev. 1850). The Lake 1\urlubon Study (Dr.! No. HGR-143) was initially submitted to HRD i.n SenteT".ber l07h for review. The 4th indorsement to the m1 ;rill he sucmitted in August 1977 for review by l·ffiD. The study recommendations ar<' dependent on amended authorization from Congress for the Bureau of Reclrunation's Garrison Diversion Unit Project. ' b. Bear Creek Dam Closure. A studv vas made hy the Hydrolop;ic Enp;ineering. Ilranch on the water management of Ilear Creek during closure of Bear Creek Dam to assure that the closure operation 1rould not inter fere ;rith State water rights. c. Inflow Forecasts. A reservoir inflow forecast procedure for Bear Creek Lake was developed. The Soil Conservatinn Service, the llational Weather Service, and the Bureau of Reclamation also study to improve their procedures on a continuing basis. 8 d. Wind Hflve and H_ater Qualit'C· These studies are beinp: con ducted by the Hydrolor,y and l~eteorolop;,- and Hater Quality ann Sediment Sections of the Hydrologic Engineerinr; Branch. An annual re110rt is prepared on the water anality of Corps reservoirs. 'T'he Gavins Point project is being used for the vind.-,ave studies, e. Necessarv RPal Ti:n.e Studies. Numerous studies are made as necessary to assUre authorjzed and/or optimum-use of the res~rvoirs. These involve inflow estimates, release schedulinp;, study of downstrerun conditions, and losses to bank storap:e. X. TRAINING PJTD Nf'TFOD.~. During the report period, •· -:" attended a two-clay National ':leather Service :i:iver Forecast '-~-em1nar and a one-day EQual :t'mplo;rment Op-portunity Seminar. attended a three-day course in Vlriting Effective Letters. attenned a tbree-day cour~:;e on Basic Fritihg. Ill· a three- day course on Secretarial Decision !·-1aklnp:. p a1so cornnleted 14 credit hours in the School of Continuing the University of Nebraska at Omaha. On-the-.iob instruction continues as emnloyees are utilized in various duties. XI. PERSONNEL MID FtJ!lDITlG. a. Perso_EJ!:lel. At the end of the report peri.od there ,.,ere ei p:"•t employees in the Heservoir Hegulation Section consistinF' of four Hydraulic F.nrjnce:rs, one Civil Fn[Sinct"'r, one H;n~rolop.:ist., one Civil Enr:.ineoring Technic ian and one Secre~ar:v--Stenor~apher. .,ili.. rp )l@~n, the Section Chief, who had heen on sJ.clc leave s1nce Apn'!""vJ r ' 1red on 27 l·~ay 1977. has been desirnated the Actinp: Chief of the Section. I shows the relationship 'hetv.rP.en the Reservoir Regulation Section and other elements of the Omaha District. Inclosure 8 lir;ts personnel of the Heservoir Regulation Section and their p:rade structure. b. Hvdrolor:ic Eng·int:erinr; Branch. The Reservoir Rep:ulation Section is part of the Hydrolop-ic Fnr:inecring Branch. The functions of sediment studies, water monitorinp: flood reports, hydraulic and hydrology planning are performed hy other sections of the Branch. The Branch is in the Enr,incerinr, Division. The Planninr; Djvision performs flood benefit comnutations, pro,iect planning and flood plain information studies. c. Funds. All FY 197fi TQ. and FY 1977 funds, except a n!'!'all portion of the Cooperative Stree.m Gardnr: Pror;ram, carne from Oneration and Maintenance Accounts. The Cooperat,ive Program in FY 107!': TO. and FY 1977 included !~4,8no and :!:20,l175, reBnectivPly, covered b" 1,Tashinr:ton level AER and General Invcstip:A.tion funds. Hissouri River Oneration and Maintenance funds for tl1e snme tvo periods amounted t.o ~o ,?00 and $38,000 respectively. All other funds vere from reservoir a.ccounts. A summary of the funds expended during the two periods are listed belo": 9 FY 76 TQ FY 77 1/ Reservoir Regulation Charges $ {;1,190 :';259,70tF' U.S.G.S. Coop. Stream Gaging 133,255 599,585 N.H.S. Coop. Reporting (FC50) 6,245 27,5701/ Field Office Charges 18,859 42 ,50tF' Y Estimated; actual costs not available at this time. ,• 10 MAP OF FLOOD CONTROL DAMS INCLOSURE 1 ----s- -eb,, J ------'r------ '--, ' ,rOMAHA DISTRICT BOUNDARY l,-or "' ..... \ "-..... __ ...... <~~~o.._Grace Coty LAKE\ ~ AUDUBON'r.. _, ...,~ I Roverdale ' . r::_ .r/,.~ ' Pongree JAMESTOWN DAM H 1•·•1 N 0 T Jamestown M 0 Mllm/shdl }.J E X BOWMAN-HALEY livingston DAM LOCATION MAP (CE.) lAKE OAHE Stratford Mort alls T H Huron Butlato _, 9 0:: ,, A ~ '0'' I'AOot.A DAM K Mitchell 0 y (I.R.) RIVrr 0 M I N G BOYSEN DAM (8.11.) o Norden o~~~P~/~""''' Rivtr (C.E.) CORPS OF ENGINEERS Casper (B.R.) BUREAU OF RECLAMATION A let~~'<~ Niobrara Rn / K ""'~ E B R A s - ,..,__.A 1 Bridgeport N _/'; r••"'r I , , Lakt OMAHA DISTRICT BOUNDARY " '' ~""::.L_____ R"~,c .....by ·~;\~, ~ -- -\) c \o L o R A n o ,.,..- , ___.... , P;"''''--'--~-----: I I I "-....'\ ,,,, // \ Ft Morgan oJ I I Boulder KELLY ROAD DAM lEAR CIIEU DAM 0 He~son{Cf.) \ I (U.) \ ~VER I -,~ 1 r--- CHATfiELD CHERRY CREEK J lUI DAM ~/ FEDERAL TRIBUTARY PROJECTS ( " (C~#" ( . (" WITH FLOOD CONTROL STORAGE I ...... SCALE IN MILES ARMY ENGINEER DISTRICT, OMAHA ..... ,) 0 100 u s __ CORPS OF ENGINEERS " OMAHA, NEBRASKA PROJECT DATA SHEETS - TRIBUTARY (4 Sheets) Corps of Engineers Dams Salt Creek Basin Dams - C.E. Papillion Creek Basin Dams - C.E. Bureau of Reclamation Dams Subimpoundment Dams (Two) - C.E. INCLOSURE 2 SU~MAPY OF ENGINEERING DATA - FEDERAL RESERVOIRS WITH AUTHORIZED FLOOD CGNTROL MISSOURI RIVER TRIBUTARIES -U.S. ENGINEER DISTRICT- OMAHA CORPS OF ZNGINEER DAtJ.S ITEM HO. SUBJECT BOllMAN HALEY BULL HOOK - SCOTT COULEE CEDAR CANYON CHERRY CR£ EK COLD BROOK COTTONIIOOD SPRINGS KELLY ROAD PIPESTEM CHATFIELD BEAR CREEK GENERAL Lowry A.F.B., Denver, 2 mi. S. of Denver, Colo. I location of dam 6 m1. W of Haley, N.O. I mi. S, of Havre, Mord. 3.5 m1. W. of Rapid City, S.D. 10 mi. S. E. of Denver, Colo. I mi. H. of Hot Springs, S.D. 4,5 mi, II. of Hot Springs. s. D. Colo. 3 m1. N.W. Jamestown. N.D. 3 mi. S.W of Denver, Colo. R,M, Cree~ South Platte River R.M. 2 River and river mile N. H. Grand R.M. 100 Bu 1 I Hock Cr,-Scott Cculee - Deadman's Gulch Cherry Creek R.M. 11.4 Cold Brook I Cotton\ DAM AND EMBANKMENT 9 fop of dam- Ft. MSL 2794.0 16IJ.J IB.H.) 16IJ.J (S.C.) 3551.1.0 5645.0 3675.0 3955.0 5362 (Average) 1507.5 5517 5689.5 I 190 10 length of dam .. Ft. 5730 I900 (B.H.) ISOO (S.C.) I ~20 14300 915 3700 4000 13,136 5.300- main 2100- South II Height of dam- Ft. 79 73 (B.H.) 53 (S.C.) I 'I I17 123 I8 107.5 I47 179.5- main 65- South 12 Stream bed - Ft. Jr.SL 2715 3512 5504 3545 3832 5344 1400 5380 55IO 1540 (B.H.) 1560 (S.C.) " Minnekahta 1 imestone 13 Abutment formation Lud 1o\ RESERVOIR ELEV. AND AREA 279.'1. 3950.0 257a. 5361.1 34a. 1502.5 6935a 5521.6 621.15a. 22 Maximum pool 2789.0 8 t JOa. 2605.0 ( 8. H. & s. c.) - 3550.6 15a. 5636.2 4542a. 3667 .2 5684.5 1225a. 3651 .II 198a". 3936.0 214a. 5361 .1 34a. 1496.3 4754a. 5500.0 IJ.822a. 23 Top of flood control pool 2777.0 5170a. 2593.0 (B. H. & s 'c.) - 3545.0 I I a. 5598.0 26 Jlla. 5635.5 664a. 36a, 3875.0 I.! Ia. none 1442.4 885a. 51130 .o 1314-Sa. Top of multipurpose pool 2754.8 1750a, none none 5550.0 B52a. 3585.0 5558.0 105a. " none 3868.0 30•. 62a. none 25 Top of 1nactive pool 271j.0,0 550a. none 3526.0 2•' nont> none 1415.0 5518.0 22a. Totai-(B.H. STORAGE ZONES - ElJCV. - CAPACITY s. c. I 3600AF 3936.0-3950.0 3250AF nane 5500- 5521 • 6 I 19,900AF Surcharge 2777.0-2789.0 78 ,860AF 2593.0-2605.0• IJOOOAF 3545.0-3550.6 74AF 5598.0-5636.2 134 ,470AF 3651.1/.-3667.2 1496.3-1502.5 34,770AF 5635 5-5684.5 46.410AF 6680AF 3875.0-3936.0 7730AF 5344 .O-S36l.l 330AF 5430-5500 .o 21 I ,200AF 27" Flood control 27511.8-2777.0 73,200AF 2540.0-2593 .o 6500AF 3526.0-35115.0 123AF 5550.0-5598.0 79.960AF 3585.0-3651.4 1442.4-1496.3 137,010Af 5558.0-5635.5 26,570AF 351.18.0-3585.0 520AF 3868.0-3875.0 249AF none 5385-51130 23 ,SOOAF 28 Multipurpose 271/.0.0-2751J.8 15,500AF none none 5504 .o-5550.0 13,960AF 1415.0-1442.4 9,590AF 5528.0-5558.0 1.870AF 3832.0-3868.0 II-06AF 29 t nact i ve 2715.0-2740.0 4,280AF none 3512.0-3526.0 t 3AF none none none 1400.0-1415.0 280AF """' 5510-5528.0 120AF 8385AF 235,000AF 30 Gross (Top of flood control pool) 92 ,980AF 6500AF 136AF 93 ,920AF 7200AF 330AF 146,880Af 28.560AF OUTLET WORKS 1 - 4.5 ft. -square culvert I . 8 ft wcular conduit 2 - 11 X 16 ft oval conduit 1 - 7 ft. mcular . upstream I 30 in. RCP- Bull Hook in. C, N. P. 2- s:~12 H. oval conduit I - 6.67 ft. conduit I - 'f8 in- concn.. te 31 Number and size - conduits I - I 0 ft. circular conduit - t - 24 1. 24 in. CMP 1 · l x 10.5 It - downstream I - 30 in. RCP - Scott Coulee I - 12 ft. circular conduit I - 8 in. supp I y I i ne 1280 ft. 1690 It 230 ft. 679.5 ft. 907 ft. 580 ft. 675 ft. 32 Conduit length - Ft. 3<1 ft. 393 ft. - Bu 11 Hook Ungated drop inlet- el. 5558 286 ft. - Scott Cou I ee Ungated drop inlet 'I. 3585 Ungated drop inlet- et. 3875 Ungated drop inlet- el. 5358.4 Ungated drop inlet- el. 1442.4 2 · 4 x 7 ft. hydraulic slide 2- 6 x 13.5 ft. hydraulic slide 2 - 3 x 6 II. hydratillc slide 33 Number - size - type gates Ungated Glory Hole - el. 2754.2 I in. valve. Bull Hook Ungated in let - e J. 3526 5-6X9ft - hydraulic s 1 ide 3 - 12 in. gate valves - •J. 35118 I - 3X3 ft. gate - el. 3868 Ungatetl box inlet. el. 5339.4 - 1 .. 36 m. valve. l - x 2 · 2 x 2ft. slide- gate on gate 2 - 1 x 1 ft. slide - gate on gate I - 30 in. valve and slide gate I " in. valve, Scott Coulee I - 8 in. va 1ve 3 3ft. slide at el. 3936.0 I - 72 1n. butterfly . I - 8 in. va 1VE - " 250 cfs at el. 3600.0 560 cf s 460 cis at el. 536J.l 8400 cfs at el. 5500.0 2,160 cis at el. 5667 Discharge capatity Glory Hole - 3206 cfs at el 2789 123 cfs at 2593 - But 1 Hook 49 cfs at e 1. 35~5 8100 cfs at 'I. 5598' 0 1540 cfs at e!. 3651 ,u 2.300 cis at el 1496.3 " 30 in. valve- 1110 cfs at el 2755 103 cfs at 2593 - Scott Cou 1ee none none 35 pOWER INSTALLATION none none none none none none none none MRO FORM 1591 August 1977 6 SfP 71.1 ( l) Costs are as of 6·30-77 SUMMARY OF ENGINEERING DATA - FEDERAl RESERVOIRS WITH AUTHORIZED FlOOD CONTROl SPACE MISSOURI RIVER TRIBUTARIES - U.S. ENGINEER DISTRICT -OMAHA SAlT CREEK BASIN -NEBRASKA ITEM DAM NO. 2 DAM NO. IJ DAM NO. 8 DAM NO. 9 13 DAM NO. I~ DAM NO. 17 DAM NO. 18 NO. SUBJECT DAM NO. 10 DAM NO. 12 DAM NO. (OLIVE CREEK LAKE) (BLUE STEM LAKE) (WAGON TRAIN LAKE) (STAGECOACH LAKE) 1YANKEE HILL LAKE) (CONESTOGA LAKE) (TWIN LAKES) (PAWNEE LAKE) (HOLMES PARK LAKE) (BRANCHED OAK LAKE) GENERAL I location of dam 1.5 mi, E of Kramer 2.5 mi. W. of Sprague r .5 mi. H, of Holland I mi. S, of Hickman 3.5 mi. f. of Denton J.5 mi. N, of Oentorl 2 mi. NW. of Pleasantdale 2 mi. NW. of Emerald SE. edge of lincoln II mi. W, of Raymond 2 River and mileage s. Trib. of Olive Br. - H. Trib. of OJ ive Br. - N. Trib. of Hickman Br, - S. Tr i b, of Hickmon Br, - Cardwel I Br, - Holmes Cr. - Middle Cr, - H. Middle Cr. - Antelope Cr. - Oak Cr, - 3 Drainage area in square mi 1 es 8.2 5.~ 88.7 16.6 15.6 9.7 8 -~ 15.1 11.0 35.9 ~ Reservoir length in mi Jes 1.2 1.6 1.8 1.~ 0.7 1.~ I .5 3.0 0. 7 3.7 5 Location of damtender none none none n(lne none none none none none none 6 Travel time to Lincoln, Nebr. 23 hrs. 13 hrs. I'I hr s. B hr s. 3 hrs. 8 hrs. 13 hrs. 7 hrs. 3 hrs. 6 hrs, 7 Max. discharge of record ------8 Project cost (I) (I) I I ) (I) ( I ) (I) (I) (I) (I) ( I) DAM AND EMBANKMENT 1320.0 9 Top of dam - Ft. MSL 1359.0 133~.0 1312 .o 129~.0 1270.0 1260.0 136~.0 1271.0 1273.0 10 length of dam- Ft. 3020.0 2760.0 1650.0 2250.0 3100.0 3000.0 2075.0 5000.0 7700.0 5200.0 II T 70.0 Height of dam Ft. ~5.0 57.0 52.0 ~8.0 52.0 63.0 58.0 65.0 55.0 12 Stream bed - Ft. MSL 131~.0 1277.0 1260.0 12~6.0 1218.0 1197 .o 1306.0 1206.0 1218.0 1250.0 13 Abutment formation CJ ay - sand - si It Clay - sand Clay Clay - sand Clay - sand Clay - sand Clay- sand- s i 1t Clay .. sand Clay - sand Clay - sand- s i 1t I~ Type of fill Rolled earth Rolled earth Rolled earth Rolled earth Rolled earth Rolled earth Rol Jed earth Rolled earth Ro !led earth Rolled earth 15 Fill quantity in cubic yds. 312000 ~71000 376000 37<000 502000 658000 610000 870000 900000 2~60000 16 Date of closure 20 Sep. 1963 12 Sep. 1962 211 Sep. 1962 27 Aug, 1963 5 Oct. 1965 211 Sep. 1963 26 Sep. 1965 16 Ju I. 196~ 17 Sep. 1962 21 Aug. 1967 17 Date of initial fi I l 30 Jun. 1965 6 Ju I . 1963 211 Jun. 1963 25 May 1965 10 Jun. 1967 May 1965 18 Mar, 1969 21 Jun. 1967 2 Jun. 1965 - SPILLWAY 1317.5 18 Discharge capacity CFS 15875 at el. 1357.1 22925 at el. 1331.7 23210atel. 1309.8 17565 at e l . 1291 .6 12100 at el. 1267.8 27220 at el, 1258.2 25200 at e l , 1361.6 19875 at el. 1269.1 800 at el. 1269.7 7825 at eJ, 19 Crest elevation - Ft. MSL 1350.0 1322.5 1302 .o 1285.0 1262.0 1252.0 1353.0 1263.5 1266.0 1311 .0 200.0 20 Width in Ft. 3~0.0 3~0-0 ~30.0 ~30 .0 ~00.0 750.0 ~00,0 700.0 50.0 21 Gates, number, size, type Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel Ungated earth channel RESERVOIR ELEVATION AND AREA 1317.3 ~207A. 1258.2 755A. 1361.6 645A. 1269. I 1780A. 1269.7 ~70A. 22 Maxi mum poo J 1357.1 IJ.70A. 1331 .7 995A, 1309.8 875A. 1291.6 6115A. 1267.8 620A, 1311.0 36110A. 1252.0 620A. 1355.0 505A. 1263.5 '"70A. 1266.0 ~lOA. 23 Top of flood control pool 1350.0 355A. 1322.5 660A. 1302.0 660A. 1285.0 ~90A, 1262.0 ~75A. none none none none none 2~ Top of joint use pool none none none none none IOOA, 128~.0 1780A. 1232.9 230A. 1341.0 155A. 12~~.3 728A, 12~2.5 25 Top of conservation pool 1335.0 17~A. 1307 -~ 315A, 1287.8 303A. 1271. I 196A, 12~~.9 208A. 75A, 1275.7 1270A, 230A. 1337.4 105A 12~~.3 7l8A. 12~0.0 26 Top of sediment pool 1335.0 17~A. 1306.1 290A, 128~.6 225A. 1271.1 196A, 12~1.9 175A, 1232.9 STORAGE ZONES - ELEVATION CAPACITY 9060AF 1266.0-1269.7 3270Af 1311.0-1317.3 2~720AF 1252.0-1258.2 ~2~5AF 1355.0·1361.6 3790Af 1263.5-1269.1 27 Surcharge zone 1350.0-1357.1 2910Af 1322.5-1331.7 91120AF 1302.0-1309.8 5990AF 1285.0-1291.6 3725AF 1262.0-1267.8 3150AF 573GAF 128~.0-1311.0 71570Af 8030Af 1341.0-1355.0 5150AF 12~~.3-1263.5 21010 AF 12~2 ••·1266.0 28 Exclusive flood control 1335.0-1350.0 3980AF 1307.~-1322-5 7220Af 1287.8-1302.0 6790AF 1271.1-1285.0 ~700AF 12~~.9-1262.0 5560AF 1232.9-1252.0 none zone none none none 29 Joint use zone none none none none none none 2IOAF 1275.7-128~.0 J 27110AF 1337.4-1341.0 810Af none 12~0.0-12~2-~ 30 Conservation zone none 1306.1-1307.~ 380AF 128~.6-1287.8 830Af none 12~1.9-12~~.9 570Af none 570AF 1250.0-1275.7 13250Af 2610AF 1306 0-1337.4 1010Af 1206 .0-12~~.3 8510AF 1218.0-12~0.0 31 Sediment pool zone 13'".0-1335.0 1~90AF 1277.0-1306.1 2660AF 1260.0-128~.6 1660Af 12~6 .0-1271.1 19~CAF 1218.0-12~1.9 1~30AF 1197.0-1232.9 97560 AF 8080 AF 29520 AF 6510 AF 32 Gross Storage (Excl, of surcharge) 5~70 AF 10260 AF 9280 AF 66110 AF 7560 AF I 06~0 AF OUTLET WORKS I - CMP - concrete J - I - CMP - 112" Dia. I - CMP - 60" Oia. I - CMP - 60" _Oia. 33 No. and size of conduits I - CMP - 118" Oia. 1-CMP- 60" Dia. I - CMP - 60" Oia. CMP - 118" Dia. 1-CMP- 60" oi'a. I - CMP - 112" 0 i a. lined - 72" Dia. 370 299 280 300 382 320 3~ Conduit length - Ft. 280 313 318 335 lift I - lJ.8" K 72" lift gate 36" X 36" lift gate I - 36" X 36" Lift gate lift I - ~2" X 60" Lift gate I - 36" X 36" gate 35 Gated outlets (No. - size - type) I - 36" K 36'' lift gate I - 36'' X 36" lift gate I - 36" X lift gate I - 36" I - 36" X 36" lift gate 1-~2"X5~" gate lltll'' 128~.0 12~~.3 2 - 30" X 96" - 12~9.0 2 - 11-2" X - 36 2 - 2~" X 72" 13~0.9 2 - 30" X 96" - 1313,5 2 - 30" X 96" 1292 -~ 2 - ·211" X72"-1277.1 2 - 18"X63"- 1250.0 2 - 2~" X 63" 13~1.0 2 - 311-" K 120" - Ungated outlets (Openings - size - elev.) - - 2 - 30" X 96" 12~2.3 - 12~2.5 12" X 30" 12~~.9 - 2 - 12" X 36" - - 2 - 12" X 30" - 1335.0 2 - 12" X 511" - 1307 -~ 2 - 12" X 5~" 1287.8 2 - 12" X30"-1271.1 2 - - 2 - 12" X SIJ" - 1232,9 - - 300 - 80 95 210 60 37 Disch. capac. - CFS (at base of EFC zone) 80 75 75 80 m none none POWER INSTALLATION none none none none none none none none 38 No. and size of turbines 39 No. and rating of generators ~0 Plant capacity ~I Pwr Pit disch capac (at base of EFC zone) (1) Total project financial cost including all dams = $10,566,000 (Costs are as of 6-30-77) SUMMARY OF ENGINEERING DATA- FEDERAL RESERVOIRS WITH AUTHORIZED FLOOD CONTROL MISSOURI RIVER TRIBUTARIES- U.S. ENGINEER DISTRICT -OMAHA PAPILLDN CREEK BASIN- NEBRASKA ~0~ SUBJECT DAMMO.I6 DAt.l NO. II &E.llll.L I Location of Da~~ 13200 and fort Street 93rd State Street 2 R iver and Milea'fi Tnbutary B1g Papio - Knight Creek - 3 Drainage Area Sq. Mi.) 6 17.8 Reservoir length in miles 10 1.1 '5 Location of D1111tender None None 6 Travel time to Mo. River 5- 10 Hours 5- 10 hours 7 Max. discharge of record 8 Project cost (I) $4.393.000 $11,532.800 DAY AIID EYBAIIIHJU 9 Top of dlll'l - Ft. MSL 1130 1152 10 Length of dan - Ft. 1'160 19'10 II Height of d.n - 70 67 Streilll bed - Ft. MSL 1060 1085 " Abutment fonnation lean clay loess lean clay loess " Type of fill Rolled earth Rolled earth "15 Fill quantity in cu. yds. ~1,000 656,000 16 Date of closure 3 Oct 1972 S Aug 197~ 17 Date of initial fi 11 - - SPILLWAY 18 Discharge capacity - CFS (Max. Pool) 9,500 18,700 19 Crest elevation - Ft. MSL 1121 11~2 20 Width in Ft. 250 700 " Gates, number, size, type Ungated earth channel Ungated earth channel RESERVOIR ElEV AND AREA Maximum pool 1127 368a. 11~7 II? Ia. Top of flood control pool 1121 302a. 114-2 992a. " Top of mtiltipurpose pool 1104- 137a. 1121 392a. " ~ STORAGE ZOfriES - ElEV. --CAPACITY 25 Surcharge 1121-1127 2,010AF 114-2-11~7 5,4-IOAF 26 Flood control 1104--1121 3,720AF 1121-114-2 14,000AF 27 Multipurpose 1060-1104 I ,500AF 1085-1121 3,910AF OUTLET 'IIORK~ 28 Number and size of conduits 1 - RCP- 36'' diameter I - RCP- 4.5 ft. diameter 29 Conduit length - Ft. 736 680 30 Gated outlets (Mo. - size - invert elev of intake I - 30'' diameter- 1080 I - 30" diameter - 1100 in Ft. MSL) 31 Ungated outlets{Mo.-size-invert elev -Ft.MSL) 2 - 1.0' X 2.5' - 1104 2 - 1.5' X 5.0' 1121 X 6.0'- JJQ9 2 .•• X 9 10' I 127.5 32 Disch. cao. - CFS (at base of EFC zonel ao- 3.a· !n- 33 POWER INSTAllATION Nooe None Augustl977 (I) Cost as of 6-3 0· 77 SUMMARY Of ENGINEERING DATA - fEDERAL RESERVOIRS WITH AUTHORIZED flOOD CCNTRDL SPACE MISSOURI RIVER TRIBUTARIES- U.S. ENGINEER DISTRICT- OMAHA BUREAU Of RECLAMATION DAMS ITEM SUBJECT BOYSEN CANYON FERRY CLARK CANYON GLENOO HEART BUTTE JAMESTQ'fjN KEYHOLE PACTOLA SHADEHIll TIBER 12) YELLOWTAIl GENERAL I of Thermopolis, Location of dam 20 mi. S. Wy 15 mi. E. of Helena Mont. 18 mi. SW of OrUon, Mont. 4. 5 m1. SE of Glendo, Wyo. 15 mi. S. of Glen Ullin, N.D. I mi, N. of Jamestown, N, 0. 12 mi, NE of Moorcraft, Wyo. 15 ffil. w of Rap•d C1ty. so l mi. W. of Shadehill, S.D. 15 mi. SW of Chester, Mont. 45 mr. SW of Hardin, Mont. 2 River and mileage Bighorn R.M. 295 Missouri R.M. 2253 Beaverhead North Platte R.M. 280 Heart R.M. l 03.5 James R.M. 580 Belle Fourche R.M. 289 Rapid Cr. R.M. LJO Grand R.M. 90 Marias R.M. 71 Bighorn 3 Drainage area in square miles 7710 15900 2320 14330 Ill 0 1760 1950 319 3120 4850 19,626 Reservoir lensth in m'rles 17.5 at et. 4125 25 at el. 3800 5 at eL 5560.4 ISatel. 4635 12 at et. 2094.5 ~Oatel. 1~5~ 10 at el. ~Ill.~ 4_5 at el. 4621.5 lO' at el. 2302 25 at e1. 3012.5 '5 location of damtender 71 at el. 3657 On site On site Dillon, Mont On site On s1te none Pactola Dam On s1te On site On site On site 6 Travel time to Missouri fl:iver 6 days 4.5 days to Ft. Peck 2. 5 day; to Three Forks About 3 weeks 2 days About I month 5 days 7 Max. discharge of record 3 days 2 days 1.25 da!' 4 days 29,800 CfS Jul. 1923 47000 CfS Jun. 1908 3120CFS Jun. 1908 30.000 CFS Juo !908 30,500 CFS May 1910 :taooo cFs Apr, 1969 12,000 CFS Apr. 192~ 8 Project cost ( I) 2200 CFS May 1952 58,000 CFS Apr. !950 40,000 CFS Jun. 1948 31.400 CFS Jun. !935 $33,498,000 $42,546,000 $12.108.000 $44.3 II. 000 $3.516,000 $3,717,000 $~,722,000 $1.861.000 $1,269,000 $45,620,000 $95,900,000 DAM AND EMBANKMENT 9 Top of dam- Ft. M.S.L. 4-758.0 3808.5 5578.0 ~675.0 212~.0 1~71.0 ~~3~.0 4640.0 2318.0 3021.0 (2) 3660.0 10 length of dam - Ft. 11~3 JOOO 2950 2096 1850 ~~ 18 3~20 1300 12 ,8~0 4300 1~50 II Height of dam- Ft. 150 168.5 133 167 12, 85 118 220 122 191.5 "9' 12 Streambed- Ft. M.S.L. "08 ~635.5 5445 4-508 2000 1386 4-016 4420 2196 2823.5 3166 13 Abutment formation SandstoM.. •h•l e-1 i mestone Shale-slate Sand-bentonitic tuff Sandstone-shale Sandstone Pierre shale Sandstone and shale Slate and schist Sand, si It and clay Shale and sandstone limestone Type of fill Rolled earth Concrete gravity Rolled earth Rolled earth Rolled earth Rolled earth Rolled earth and rock Rolled earth and rock Rolled earth Rolled earth Concrete arch "15 F i 11 quantity in cubic yds. 1,527,000 4-07' 100 1,884,000 2,676,000 1' 14-0,000 963' 000 I ,329,000 4.225,000 3,391,000 11,320,000 I ,54-6,000 16 Date of closure Oct, 1951 Mar. 1953 Aug, 1964- Jun. 1956 Aug. 194-9 May 1953 Mar. 1952 Aug. 1956 Ju 1. 1950 Oct. 1950 Oec. 1966 17 Date of initial fi 11 l top of conser. pool) Jun. 1952 Ju 1. 1955 Jun. 1965 May 1959 Apr. 1950 Apr. 1965 Has not f i 11 ed Jun. 1963 Apr. 1952 Aug. 1956 Jun. 1967 SPILLWAY (Service) 18 Discharge capacity CFS (Max. poo 1 ) 20,000 at el. 4725 150,000 9530 10,300 5650 2930 I IOOC 38,4-00 5700 127,000 CFS 54,000 (2) 92000 19 Crest elevation - Ft. M,S,L, 4-700.0 3766.0 5560.4- 4653.0 2064-.5 1454- 4-099.3 4-62 I. 5 2272.0 2302.0 2980.0 (2) 3593.0 20 Width in Ft. 60 (net) 66 (total) 204- (net) 222 (gross) 100 27 9.5 19.25 250 - 1500 96 (net) 50 (net) 21 Gates, Number, Size, Type 2 (30X25 It) radial ~ (SIX3~.5 ft) rad i a 1 Ungated chute Ungated ogee weir Ungated glory hole Ungated glory hole Ungated ogee weir Ungated ogee weir Ungated Ungated 3 - 32X20 ft radial 2 - 25X6~.~ ft radial " glory hole earttl channel RESERVOIR ELEVATION AND AREA 23,300a. 20,000a. 4-128.2 20,~90a. 4633. I l350a. 2312.0 12, 150a. 3014-.9 23,800a. 3660.0 17,958a. 22 Maximum pool ~752.0 30,770a. 3800.0 35, 180a. 55 I 1.9 6600a. 4669 0 21 18.2 10,950a. 14-64-.4- 9900a, 3012.5 17,298a. 23 Top of flood control pool ~732.0 22,200a, 3800.0 35,180a, 5560 4 5903a. 4653.0 IS,OOOa. 209~.5 6625a. 1~514 .0 13,250a. 4-111 . 5 13,690a. 461JS l220a. 2302.0 23, 150a. 3657.0 2560a. 2272.0 ~SODa. 2992.3 17,680a. 36~0.0 12,685a. Top of joint use pool ~725. 0 19,600a. 3797.0 3~,1435a. 5546.1 5l60a. - 1~32.67 - 2' 21 OCa. 2260.0 3600a. 2973.0 13,070a. 3614-.0 74-IOa, 25 Top of conservation pool ~717.0 17,100a. 3770.0 24-, 126a. 5535 I 4496a. 4635.0 12,400a 206~.5 3~00a. 1~29.8 ~099.3 9390a. 4580.2 860a. 2250.8 2800a. 2967.0 II ,810a. 3547.0 4-192a. 26 Top of inactive pool ~685.0 9,4-00a. 3728.0 II .~79a. 5410 6 209a. 4570.0 ~130a. 2030.0 800a. 1400.0 160a. 4-051.0 910a. 4455.0 84a. STORAGE ZQN~S - ELEVATION - CAPAC. 209~.5-2118.2 200, 500AF 2302.0-2312.0 109,000AF 3012.5-301~.9 56, 300AF 3657.0-3660.0 52,8~0AF 27 Surcharge zone IJ.732.0-~752.0 523, OOOAF none 5560.4-5571.9 71, 800AF 4653.0-4669.0 329,300Af 114511.0-1~6~.~ 158900AF ~111.5-4-128.2 283,200AF 46215-4633.7 !5,800Af 28 Exclusive flood control zone IJ.725.0-4-732.0 150, OOOAF 3797.0-3800.0 104-,300AF 55~6.1-5560.4 79,100AF 4635.0-4653.0 171, 900Af 206ij,5-2094-.5 I SO, OOOAF 1432.7-14-M.O 18S.,OOAF 4-099.3-4111.5 14-0,200AF 4580.2-46215 43,000AF 2272.0-2302.0 216,000AF 2973.0-3012.5 709, 24-0AF 36~0.0-3657.0 259,000AF 250,000AF 29 Joint use zone 4-717.0-14725.0 150,000AF 3770.0-3797.0 799, IOOAF 5535. 7-55~6. I 50,4-00AF none none 11429.8-1~32. 7 6600AF none none oone none 3614-.0-3640.0 2030.0-2064-.5 68, 700AF 74-360AF 354-7.0-3614-.0 363, 670AF 30 Conservation zone ~685.0-~717.0 1J. 10, OOOAF 3728.0-3770.0 713,000AF 51t70.6-5535. 7 126, IOOAF 4510.0-4635.0 454,300Af 11400.0-1~29.8 28,100AF 4051.0-4-099.3 J90,400AF 4456.1-4580.0 55,000Af 2250.8-2272.0 84-, OOOAF 2967.0-2973.0 6800AF 3166.0-35~7.0 502,330AF 31 Inactive zone 4-615.0-4-685.0 260,000AF 3635.0-3728.0 ~34-,SOOAF 54-145.0-54-70.6 lSI OAF 4508.0-4510.0 63,200Af 2004.0-2030.0 1386.0-1~00.0 820AF 4016.0-4-051.0 9,500AF 4420.0-4456.1 I,OOOAf 2200.0-2250.8 58, OOOAF 2823.5-2967.0 58~, 660AF I, 375, OOOAF 32 Gross storage (excl. of surcharge) 970,000AF 2,050,900AF 257 ,200AF 189,400Af 225,500AF 220,900AF 623,300AF 99,000Af 358,000AF I , 368, 200AF OUTLET WORKS 63 in. 1,0, I conduit conla--i-n.ing 2 - 84- in. 33 No. and size of conduits 1 - 66 in. J.D. ~-8~in. I.D. I - 9 ft. I. D. 1-21ft. I.D. I - l-9.5ft. - 13.5 ft. I - 9.5X8.25 1 - 6 ft. I - 7 ft. 1.0. I - 57 in. I. D, 1 - 13 ft. I. 0. pump intake I - 72", I - 22" pipes l-9.5ft. 289 - 216 - 305 Conduit length- Ft. 300 8' in. - 115 7" 2300 597 4-43.75 653.4 140 355 72" - 1110 22" - 1090 1 - ~x5 ft. Slide 1-5X5' slide, 1118" butterfly 3 - bulkhead gates 36 No, -Size- Type gates 2 - ~8 in. Jet valves 4 - 77 in. S 1 ide 2 - 3X6.5 ft. Sl id€ 3- 7.25X7.75 ft. Slide 2 - SX6 ft. s 1 ide 2- 3.5X3.5 ft. sl ide 2- 2.15X2.75 ft. slide I - 6X6 ft. radial " 690 1300 at el. 2973 81J. in. - 2500 each 36 Discharge capacity-CFS (at base of EFC zone) 66 in. - 6~0 " - 8~ in, 9500 2200 II ,300 2175 at el. 14-29.8 1250 1020 600 at el. 2260 57 in. - 670 I - 13 ft. 530 9.5 ft. - 862 POWER INSTALLATION none HP 37 No. and size of turbines 2 - 10,500 HP 3 - 23,500 HP none 2 - 16,750 HP none none none none none ~- 87,500 38 No. and rating of generators 2 - 7500 KW 3 - 16,667 K'fj 2 - 12,000 KW ~ ._ 62,500 .. 39 P 1 ant capacity 15,000 KW 50,000 KW 2~,000 KW 250,000 KW " Pwr pit discharge capac. (at base of EFC zone 2300 CFS 5200 CFS 3300 CFS 7800 CFS (1) T~ese costs to complete the dam and reservoir, t~e associated recreation and fish and wildlife facilities and the power plant August 1977 were applicable. Costs do not include irrigation facilities except those located at the dam. Costs are as of 6-30-76. (2) Valves shown for Tiber were in effect prior to 1965. Restrictions placed on use of the spillway after the 1965 high pool voided our flood control agreement. A cofferdam completed in June 1969 currently prevents water from reaching the spillway until repairs can be made. An auxiliary outlet works (5,000 c.f.s. capacity) was also completed at this time. As of this date repairs are under way to raise the dam to elev. 3026 ft. m.s.l. and rehabilitate the spillway to discharge 68.500 c.f.s. at a new crest elev. of 2975.0 ft. m.s.l. PERTI'!>.Thl' DATA PERTH\EiiT DATA SNAKE CREEK Dt\.'1 (LAKE AUDt:BON) SPRING CREE:<. ~Ac'1 (LAKE POCASSE) Location - On Snake Creek arm of Lake Sakakawea, approximately 12 oiles northeast of Garrison Da~, North Dakota, Location - On Spring Cre~k arm of Lake Oahe, at Pollock, South Dakota ~ - :he da~ and reservoir are a relocation route for trans Purpose - It is a road relocation route for the area inundated by Lake uor:ation facilities and utilities \,'hich l·:ere inur.dated by Lake Oohe. Control structures are provided to regulate Lake ?ocasse for S;:;',::c::f:a;..'e'l, a re;ul<'.t:!_ng ::escrvoir for the Bureau's Garrison Diversion fish and wildlife and recreation. In the future it will be used as Unit, and provide for :ish ~nd wildlife and recreation. a rc~ulatin:; reservoir fo-::: the 3•xreau's Pollock Herrid i.:;J.it. This unit \:ill pu:np water from Lake C2.he a:1d use it for irrigation and Draina~e Area- 250 sq. mi. (110 sq. mi. of which is non-contributing). M & I water fer the t"~>·o towns. Drainage Area- 660 sq. mi. (330 sq. ~1. of which is non-contributing). ::•?e of Fill - Re>lled Earth Doro erod Enbank;"Jent Tor' of S;L:;} ~l<:'V. - 1865 ft. m.s.l. Ler1gt;, ~f DJ:::t - 1Z,90C ft. :ype of Fill - Rolled Earth Height of Da~. - 85 ft. maxi~um Top of Dam Elev. - 1625 ft. m.s.l. Stre~:nbeC- 1780 ~t. m.s.l. Length of Dam- 3,200 ft. Dot2 of Closure - 1952 Heit;ht of Dam - 40 ft. maxireum D-'1te o: bitial Fill - Not Yet Streambed - 1585 ft. m.s.l. Date of Closure - 1961 ]zill~ - ::one (An orir;int.l designated ungated spilh;ay of 3 - 60" Date of Initial Fill - Between 1961 and 1964 cu:•:c-cts •..:ith a crest of elevation of 2850 was filled in and closed ::.r!. J.S72 ..-he:1 tho;>. et::'.bank:ner.:: wes •,.·ide"1.ed to provide for a four lane Spillw:n· - Nine 6x8 ft. u:~.controlled box culverts ~..-ith a crest elevatio:J. hlg],·~·£y. It was loco. ted 180 ft. nort1:t of regulating conduit). of 16J7 ft. o.s.l. Rese~·oir Elevations, Area and Caoacitv Reservoir Elevations. Area and Capacity Ft.m.s.l. Acre-Feet Acre-Feet :~n~::".:::t };JP."..zl Operating Pool 1850 20,620 396,000 Spillway Crest 1617 11,000 l-iinir:-u:::t liOIT.al Operating Pool 1847 18' 780 336,870 To? of Consl'rvation lf'il6 9,500 To? of Inactive Pool 1810 1,450 13,180 Bottom of Cons0rvation 1613 6,000 Stream!:led 1780 0 0 Top of Inactive Pool 1602 1,000 Streambed 1585 0 Outlet 1-'orks- A 7xl0 ft. reinforced concrete conduit, invert elev. 1810, regulated by a motor or hand operated 7xl0 ft. sluice gate. Outlet Works - One 5 ft. CMP conduit with a 5x5 ft. sluice gate, in Lc:ateci a::.out 3000 ft. south of north end of main embankment. Discharge vert elev. 1602 and a Sxl2 ft. overflow roller gate, invert elev. 1609. ca 2c.:.ty 2,3'JU c.f.s. under 15 ft. head differential. T'i.'O ?':dO' be. kf,ea:i.s o<~e on each side of sluice gate. Stilling basin on Garrison si e. TOTAL li'&I3ER OF FLOOD CONTROL RESERVOIRS IN THE OHAHA DISTRICT HONITORED AND/OR REGULATED AI!D REPORTED BY THE RES. REG. SEC. (Prior to 1960 most projects were in the Ft. Peck or Garrison Districts) As of !-lain Tributa!:r 'l'otal* lJan Stem CE USBR 1937 0 0 0 0 1938 l(Ft P) 0 0 1 1939 1 0 0 1 1940 1 0 0 1 1941 1 0 0 1 1942 1 0 0 1 1943 1 0 0 1 1944 1 0 0 1 1945 1 0 0 1 19 1 0 0 1 1947 1 0 0 1 1948 1 0 0 1 1949 1 l(C Crk) 0 2 1950 1 1 l(Hrt Bt) 3 1951 1 1 3(Sh & Tibr) 5 1952 1 1 4(Boy) 6 1953 2(Ft R) 2(C Brk) 5(Keyh) 9 1954 3(Gar) 3(K Rd) 6 (Jam) 12 1955 3 3 6 12 1956 4(G Pt) 4(BI!SC) 6 ll; 1957 4 4 8( Glen ,Pact) 16 1958 4 4 8 16 1959 5(0ahe) 4 8 17 1960 5 5(C Cyn) 8 18 1961 5 5 8 18 1962 5 5 8 18 1963 5 8(Salt) 8 21 1964 6(Big B) ll(Salt) 8 25 1265 6 12(Salt) 9(C Cyn) 27 1966 6 14(Salt) 9 29 1967 6 15(B Hly) ll(Yl & CF) 32 1968 6 16(Sa1t) ll 33 1969 6 16 ll 33 1970 6 17( Cot S) ll 34 1971 17 ll 311 1972 6 17 ll 34 1973 6 17 ll 34 1974 6 20(Pip,Cht,Pap) ll 37 1275 6 21{Pa!l) ll 38 1976 6 21 11 38 1977 6 21 11 38 1978 6 22(Bear) 11 39 1979 1980 *Two subimpoundments (Lake Pocasse and Snake Creek) not included. INCLOSURE 3 LOCATION MAP FLOW ~IOD~: D Water Year (1976-1977) V Apr.-Jul. or seasonal (1977) PERCENT OF NORMAL RUNOFF I (at pertinent locations) ' OMAHA DISTRICT I ICALI iN ••UI 10 0 '" u ••••• '""'""" ~'""''' ~··~· '"'""' ·~-··•••\ '''"'"' ..... \ .. llliGULATION SHEETS FOR PAST YEARS INCLOSURE 5 1976 - 1977 RESERVOIR REGULATION BEAR CREEK Dih~ AND LARE BEAR CREEK COLORADO Bear Creek Dam was closed on 19 July 1977. Because of the dry hydrologic year and close guarding of water rights in Colorado, the Corps obtained water to fill the Bear Creek Lake dead storage pool from the U. S. Veterans Administration's share of water in the upstream Soda Lakes. In order to maintain a live stream below the dam during filling of the dead storage pool, a flow of 3 c.f.s. was pumped through the outlet works. It took 39 hours to fill the dead storage pool. Construction of the project will not permit deliberate storage until late 1978. Until that time streamflow will pass through the full open 36-inch gated low level outlet. ...., ~ ---~r;Jl ~ ~I ::.11rill ~: :::il I I I i I I 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J I YEARS 1976 1977 BEAR CREEK DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION BOHMAN-HALEY DA.'I AND LAKE GRAND RIVER BASIN NORTH DAKOTA In August, generally dry conditions prevailed in the Grand River Basin. Because of the prolonged drought, releases from storage in Bowman-Haley Reservoir to meet emergency livestock, fish and wildlife, and irrigation n~eds, downstream, were initiated on 16 August 1976. These releases, averaging approximately 20 c.f.s. were terminated on 30 August 1976. Little or no inflow continued well into the water year, however, a week of generous rains, in mid-June, caused the pool to spill from 16 June through 3 July. The peak pool during the water year was 2755.10, recorded 20-23 June. Only 515 A.F. of the 72,500 A.F. of flood space was utilized. The maximum daily inflow of approximately 200 c.f.s. occurred on 11 June. The outflow on this date was 0 c.f.s. The maximum daily outflow was approximately 20 c.f.s., during gated outlet releases, and on 21, 22, 23 June during spilling. The estimated daily inflow for these three days was 40 c.f.s. No flood control was achieved during the period. The volume released during August was 530 A.F •. 755 750 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 BOHMAN-HALEY DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION BULL HOOK - SCOTT COULEE DPu~S MILK RIVER BASIN MONTANA This project, normally, does not store water, as the low level outlet gates are kept open. During the 1976-77 water year, no water was stored; and, any inflow, which may have occurred, was allowed to pass through the gates at both projects. No flood control was achieved for the period. 67 68 69 70 71 72 73 74 75 76 YEARS 1976 1977 BULL HOOK AND SCOTT COULEE DAMS 1976 - 1977 RESERVOIR REGULATION CEDAR CANYON DAM RAPID CREEK BASIN SOUTH DAKOTA This reservoir is normally dry. Any inflows which occur pass through an ungated low level outlet. No water accumulated in Cedar Canyon this year; therefore, no flood control was achieved during this period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 CEDAR C!\NYON DAM 1976 - 1977 RESERVOIR REGULATION CHATFIELD DAM AND LAKE SOUTH PLATTE RIVER BASIN COLORADO At the beginning of the period the target pool level was 5416.52. The release of water for a local Labor Day float trip lowered the authorized pool to 54,16.43. During the October-April period, in order to have the pool level lowered to 5415 to permit Corps construction of recreation contracts and not lose the storage permanently in so doing, an exchange of storage was made with the Denver Water Board's upstream Chessman Reservoir. In October and November Chessman withheld water from Chatfield while the Chatfield pool was lowered to 5415. Following completion of construction, water was released from Chessman in March and April and the Chatfield pool was raised to the new target level of 5416.13. During the remainder of the period the pool was charged an evaporation loss or free water gain as determined by the State Water Commissioner. The target pool on 31 July was 5415.64. The maximum pool achieved during the period was 5418.02 on 4 May. The maximum daily inflow was 760 c.f.s. on 7 August. Release to the river on this date was 630 c.f.s. The maximum daily release to the river was 709 c.f.s. on 8 August. Some water supply canal release, directly from the reservoir, was made every day except during the October 28 to April 3 period and on 26 July. No flood control was achieved during the report period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 CHATFIELD DAM A}ID LAKE 1976 - 1977 RESERVOIR REGULATION CHERRY CREEK DAM AND LAKE CHERRY CREEK COLORADO The lake level remained in the conservation pool the entire period. The maximum pool achieved during the period was 5549.53 on 26 April. The maximum daily inflow during the period was 70 c.f.s. on 25 July. No "releases were made during the period. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 YEARS 1976 1977 CHERRY CREEK DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION COLDBROOK DAH AND LAKE FALL RIVER BASIN SOUTH DAKOTA Above average inflow and small discharges caused the pool level to rise during December through March. The maximum pool during the perion was 3582.2 from 30 March through 17 April 1977. The peak inflow C-.J_;_~L' ' , . . '-'--'' ~ , :r.-r-.:::r.' ' ' 'lili!± I w~ I ; : I :,..- • . ' .,----:-_!::~~_;_I ' l _:.--,--..--:..._~ • ~- : ·-~ .. r.i# ~ '. -. , " . , '---=- .· ·-: ; FS . --~ . ----:- ___:._~ ~ I -+-r : ' ' :-t-~ : -- ·- - ._;,____ ;__,__ 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 COLDBROOK DAH AND LAKE 1976 - 1977 RESERVOIR REGULATION COTTONWOOD SPRINGS DAM AND LAKE FALL RIVER BASIN SOUTH DAKOTA Since dam closure in June 1969, no water of any sir-nificance has accumulated in the reservoir. No water has ever been released from the dam. No flood control was achieved during the period. , 'I 'I ~~rl+ ** £1 ~! ~IHI "'""j II 3Sho I :~r-~ 1 : • : ,, ~rt,~q <-t; c; :+' I-;-"'!Jt· ,.,-,~rcr ~h H -r;- ~·-1~ '4 I'' -· ·-· ••• j. I J_ -·' ,__ -~1- -~ I i ! 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J !EARS 1976 1977 COTTONWOOD SPRINGS DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION KELLY ROAD DAM SAND CREEK BASIN COLORADO Kelly Road Project normally stores no water, Any inflows which occur pass through the ungated low level outlet, During this period, no water passed thfough the outlet. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 KELLY ROAD DAM 1976 - 1977 RESERVOIR REGULATION PAPILLION DAM AND LAKE - NO. 11 PAPILLION CREEK BASIN NEBRASKA F~llowing heavy rainfall on 8 May 1977, Dam #11 prevented the Little Papio Creek, at the Irvington streamgage location from having minor overbank f~ow. The storm resulted in about .45 inch of runoff over the drainage area above the Irvington gage site. The maximum pool achieved during the period was 1117.7 on 21 July. The peak daily average inflow was 229 c.f.s. on 8 May. The estimated instantaneous peak inflow was about 4,000 c.f.s. on 8 May. No releases were made during the period. No flood control benefits were attributed to the dam during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 PAPILLION DAM AND LAKE NO. 11 1976 - 1977 RESERVOIR REGULATION PAPILLION DAM AND LAKE - NO. 16 PAPILLION CREEK BASIN NEBRASKA Spring and summer storms raised the pool to a maximum level of 1096.7 on 21 July. The peak daily inflow was 42 c.f.s. on 5 May 1977. No releases were made during this period. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 PAPILLION DAM AND LAKE - NO. 16 1976 - 1977 RESERVOIR REGULATION PIPESTEM DAMIND LAKE PIPESTEM CREEK NORTH DAKOTA 'Evaporation during the fall and winter lowered the pool to a m1n1mum level of 1440.0 during the winter months. The much below average winter snowfall and runoff during the spring and summer was insufficient to fill the con ·servation pool. A meeting on James River water shortage was held in Jamestown, North Dakota on 4 March. At this time the downstream cities of Mitchell and Huron, South Dakota requested release of water from Pipestem-Jamestown Reservoirs to aid their critically low water supply. However, heavy rainfall and runoff between the two dams and the downstream cities during March relieved their emergency situation. Mitchell's water supply lake filled for the first time in 3 years on 25 April. The dry year also prompted the downstream Sand Lake Refuge to raise the question of James River water rights. A meeting was held on 8 June in Aberdeen, South Dakota on this matter. The maximum pool during the period was 1441.9 on ll July. The peak daily inflow during the period was 210 c.f.s. on 6 July. No releases were made during the report period. No flood control was achieved· during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 PIPESTEM DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION OLIVE CREEK DAM AND LAKE - NO. 2 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1330.9 feet m.s.l. on 1 August. Th~ largest daily average inflow was 12 c.f.s. on 21 June. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1328.2 feet m.s.l. at the end of the period on 31 July was the lowest since the lake was initially filled. No flood control was achieved during the period. 1 =b= i ~: ~~:tfift f 8~ ~ ~ 1320 ~J~;: ~= :.~ ~!~~~ ~b- • ' --'-· -· _,.__+ -- .___. ---=r 67 68 69 70 7l 72 73 74 75 76 AS 0 N DJFM AMJJ YEAHS 1976 1977 OLIVE CREEK DAM AND LAKE - NO. 2 1976 - 1977 RESERVOIR REGULATION BLUE STEM DAM AND LAKE - NO. 4 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool and gradually declined throughout the period. The maximum pool elevation during the period was 1304.3 feet m.s.l. on 1 August. The largest daily average inflow of 18 c.f.s. was on 25 September. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1300.1 feet rn.s.l. at the end of the period was the lowest since the lake was initially filled. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 BLUE STEM DAM AND LAKE - NO. 4 1976 - 1977 RESERVOIR REGULATION WAGON TRAIN DAl1 AND LAKE - NO. 8 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1286.8 feet m.s.l. on 1 August. The largest daily average inflow was 25 c.f.s. on 27 September. The pool did not rise into the flood control zone, and no releases were made. No flood control was achieved during the period. h ' ' :+ ' . ' ~:!= I ~I14j f;J II ;il, H~I E-<' t=ll~~ >-lj 1280 ~I 31 1270 I I 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 WAGON TRAIN DAM AND LAKE - NO. 8 1976 - 1977 RESERVOIR REGULATION STAGECOACH DAM AND LAKE - NO. 9 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1263.5 feet m.s.l. on 30 May. Th~ pool showed a slight rise in pool level responding from bank storage inflow fotlowing the lake drawdown for the purpose of the Nebraska Game and Park Commission chemical fish kill operation occurring in July 1976. The largest daily average inflow was 12 c.f.s. and occurred on both 27 May and 22 June. The pool did not rise into the flood control zone, and no releases were made. No flood control was achieved during the period . .. ;-,--.--;--:-- 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 STAGECOACH DAM AND LAKE - NO. 9 1976 - 1977 RESERVOIR REGULATION YANKEE HILL DAM AND LAKE - NO. 10 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool and gradually declined throughout the period. The maximum pool elevation during the period was 1242.46 feet m.s.l. on 1 August. The largest daily average inflow was 13 c. f. s. on 25 September. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level on 25 to 27 July . of 1239.03 near the end of the period was the lowest since the lake was i~itially filled. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 YEARS 1976 1977 YANKEE HILL DAM AND LAKE - NO. 10 1976 - 1977 RESERVOIR REGULATION CONESTOGA DAM AND LAKE - NO. 12 SALT CREEK BASIN NEBRASKA The lake remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1231.18 feet m.s.l. at the be~inning of the period on 1 August. The largest daily average inflow was 17 c.f.s. on 10 March. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1228.62 feet m.s.l. at the end of the period was the lowest since the lake was initially filled. No flood control was achieved during the period. 240 +ho.c -•T7 - -1---. --- -7"'1.' · ~- 17liJ· ~- f--v.c; If-~ '·r - - ' - ' ·- .-, ;.._~ -_,__.,'Cf . ' :---~..;.-.. -,~ -- ::-~~ ~ --~:-IT: --f---.---i-l·' ~--~~-- 230 ~ 1 q ~2~ -}8 fi:[ ~-i!f fE;T ?f±E ~~: i-~~. +ftjl L~~ lff' ;_,_; ' L ':= :-' C: :~_;2 c : . ;_c_;: L:r:J:I+ o~-'-' :rt-!+1- --~-+lt -~:-:.!~ ~t;-;:- :=;~~ ~ct:-~- Httl-~-4!- n:~~ :± 220 tt#J ~- $~ :P:Lt: -~~":[~ 8ifi j:J# f5:; i:t~X ::-$ :t±±i:fm:,:Uiffif· : ,~ c_c:;c -'-'-;__r .c ciT 'ri:~ ~~ ;:;=:~:: •=-"'p' _;_ ·_•,. :+, •,-_r_- ~--~---~_~fir-~_ :-_;___ i':t~:--::-:l_=~- j 1--J...-;-· ~- _;_. -r+ -·--r-!-~-f---7-~- ~-;_;__;, ~ l ~+.J.._ --:-l t-~- ~~- -:-" ;..l ' - , :-;· --r- -,; I: ·-- -- r-,-. +H-ii +t+'- -~r-ic-'- ·"r·-" - +++ · ' -t-' · rr-' ·-; '+• ~_,.-,-· t+ .' -- :, +· .:-L l--'- -:r ~-f-t ----+-• -- ~ 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 CONESTOGA DA.~ AND LAKE - NO. 12 1976 - 1977 RESERVOIR REGULATION TWIN LAKES DAM AND LAKE - NO. 13 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1338.53 feet m.s.l. from the 1st through the 3rd of August. The largest daily average inflow was 21 c.f.s. occurring on both 21 May and 11 July. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1336.54 feet m.s.l. at the end of the period was the second lowest since the lake was initially filled. No flood control was achieved during the period. H--- , ' I ., :.:: ~.:. ·~: .. ~:·+' ...... ·+ ~ l-L •-~- .: : ~f ·_[j -rt·:~. ;-~ ~~: ..7", '.·. .::::-..: -~ ,. '" ····· .. r ;.L "· .c, .... - ~- 67 68 69 70 71 72 73 74 75 76 ASON DJFM AM J J YEARS 1976 1977 TWIN LAKES DJ\i~ AND LAKE - NO. 13 1976 - 1977 RESERVOIR REGULATION PAWNEE DAM AND LAKE - NO. 14 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1242.68 feet m.s.l. on 1 4ugust. The largest daily average inflow was 104 c.f.s. on 11 July. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1241.21 feet m.s.l. from 30 December through 2 January was the lowest since the lake was initially filled. No flood control was achieved during the period. ' --1-r- f+tl+t ' ; ; • • 'C p c+ H~ -- -1+ +-- 1270 ~I :.JI~I 1'-1 i>-< .J. 1250 ~ E-<1 ~I 1240 -Ifll ~' 1230 I i I I 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J l YEARs 1976 1977 I PAWNEE DAM AND LAKE - NO. 14 I L------~ 1976 - 1977 RESERVOIR REGULATION ANTELOPE CREEK DAM AND LAKE - NO. 17 SALT CREEK BASIN NEBRASKA The lake level remained in the conservation pool throughout the period. The maximum pool elevation during the period was 1236.11 feet m.s.l. on 1 August. Th~ largest daily average inflow was 13 c.f.s. on 11 July. The pool did not rise into the flood control zone and no releases were made. Because of the dry year the pool level of 1232.77 feet m.s.l. near the end of the period on 10 July was the lowest since the lake was initially filled. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 ANTELOPE CREEK DAM AND LAKE - NO. 17 1976 - 1977 RESERVOIR REGULATION BRANCHED OAK DAM AND LAKE - NO. 18 · SALT CREEK DAM NEBRASKA The lake remained in the conservation pool during the period. The maximum pool elevation during the period was 1282.22 feet m.s.l. on 1 August. The largest daily average inflaw was 201 c.f.s. on 28 July. Gated releases of 1 to 3 c.f.s. were made during August, September, June and July to meet downstream water-right irrigation demands. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 BRANCHED OAK DAI1 AND LAKE - No. 18 1976 - 1977 RESERVOIR REGULATION SNAKE CREEK DAM AND LAKE AUDUBON LAKE SAKAKAHEA SUMIMPOUNDMENT NORTH DAKOTA . Evaporation and other reservoir losses lowered the pool to a minimum level of 1846.2 during December. Starting on 31 March water was pumped from L~ke Sakakawea to Lake Audubon so as to raise Lake Audubon pool elevation to 1848.0. Between 31 March and 13 April 22,000 A.F. of water was transferred to Lake Audubon. The maximum pool level during the report period was 1848.01 on 14 April. Current plans are to raise the pool level to 1848 next year. If the spring runoff is not enough to raise the pool to this level, water will again be pumped via the Snake Creek pumping plant from Garrison Reservoir. The pool rise is planned prior to 15 April. I 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 SNAKE CREEK DAH AND LAKE AUDUBON 1976 - 1977 RESERVOIR REGULATION SPRING CREEK DAM AND LAKE POCASSE LAKE OAHE SUBIMPOUNDMENT SOUTH DAKOTA The lake failed to fill to the ungated spillway crest during the report period. The maximum pool achieved during the spring runoff period was 1613.68 on 10 April. This was the lowest maximum pool attained in at least lS years. The lowest pool during the period (1617.08 on 31 July) was also the lowest since the lake initially filled. The normal plan of regulation is to keep the pool as high as possible, except during every fourth or fifth year then draw it down to about 1614 in early summer for plant life and water rejuvenation purposes. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 SPRING CREEK DAM AND LAKE POCASSE 1976 - 1977 RESERVOIR REGULATION BOYSEN DAM AND LAKE BIGHORN RIVER BASIN WYOMING Because of l~w inflow forecasts, and actual low flows, no joint use space was requested by the Corps during this water year. The joint use space remained vacant, and in an effort to conserve storage, releases were held to a minimum after forecasts were made. Seasonal runoff into Boysen Reservoir was only about 20 percent of average. The maximum pool of 4722.09 was recorded on 12 October 1976. The maximum daily inflow was 5,440 c.f.s. on 2 August 1976. The outflow on this date was 1,402 c.f.s. The maximum daily outflow was 1,802 c.f.s. on 5 December. No local flood control was achieved during this period. 1-+±ti . . : . ' + . --t+ : :~ ~ ~-~; , -;-:, t::-~. r ~~~~ Srr .i~-~~- ;~ ,ffintftffi-~~-~:ffg~ f~1t- Y2:- ~+ili §±t_ :~dE 4680 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 BOYSEN DA!-1 AND LAKE 1976 - 1977 RESERVOIR REGULATION CANYON FERRY DAM A~TD LAKE MISSOURI RIVER BASIN HONTANA In contrast to last year's inflows of record, this year's runoff was only about 50% of average. Because of low inflow forecasts, no ,joint use storage evacua tion was required. The only time the pool was in the exclusive flood control zone was for a short period of time from 23 November to 4 December. The maximum pool for the period, 3797.09, was recorded on 27 Novel"her. At this time, only 3,100 A.F. of the 104,300 A.F. of flood space was utilized. ~he only water spilled during the water year was during this time, and totalled only 18,600 A.F. The peak daily inflow was 10,272 c.f.s. on 111 June. ~he outflow on this date was 2,720 c.f.s. The peak daily outflow was ~,070 c.f.s. on 8 August. No flood control was achieved during this period. ' -c--- -- n :;-_;_;... 1-:-c'-'-,-:::z ,,, _L....J__ ~- ·- - ' . ' . ' .. ' ; ' f---1= TOP FLOOD CONTROL ZONE --;-tTl p _,_;.._ p '-+ W.:. U.!-l-~ '-cit+ I-'- ~c -- ·--- ~ _,c.~ .. -t~~. ·,-- --!-'i "-'I++-' -I+'-·'-·------1- 3Rno -: TOP JOINT USE ZONE ~- _,_, f--'- f--c + . l++h-- . . . . -- · · l= c"' f--i- · · -W-f--,-1-t+ ~1.:..;. - !- ;-,, ~- 'i ~· f::: ::c "' --1'+ .. -:-:1- =~ ~-+Vl ·--r '"'. :' ' .• L' ~ 1\r "•h-,.:;1::::1-1~ ;-!!] +- ' ~ ~~~--:.IlL -'-;. _ ... I I • .L I I I 1 11=+--- -'-J..~- -::!: e·-' ~L!. : · · j.;,. 1- 3700 ' ' R c_;:_: 1-'- ' - . . 1-l-- 1--'t 1+1- t= BASE OF REPLACEMENT ZONE t ,+i - lc!~- I ill--h+ f.'-, ~'" . ' ;.~-' -~ fiTI_ •.. L.;... :... • ~-~ ~-~~ EI £ --~i !! ~ -h 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 CANYON FERRY DAM AJID LAKE 1976 - 1977 RESERVOIR REGULATION CLARK CANYON DAM AND LAKE BEAVERHEAD RIVER BASIN MONTANA At the beginning of the period, water stored for replacement purposes during 1976 was being evacuated. This evaucation was completed on 4 September. Ex cess runoff during October and November caused a small rise in pool level. Because the seasonal runoff forecast were much below average, storage of the uppermost 20,000 A.F. of joint use space was initiated (1 February) one month earlier than required by the normal flood control plan. Forecast in percent of average for Clark Canyon were 51% on 1 January, 47% on 1 February, 15% on 1 March and 15% on 1 April. On 17 April fill of the joint use storage space was accomplished. The April-June runoff at the damsite was the third lowest of 39 years of record. The maximum pool achieved during the runoff period was 5546.41 on 3 May. Releases for irrigation lowered the pool during the remainder of the report period. The peak daily inflow was 670 c.f.s. on 23 August. Outflow on this date was 900 c.f.s. The maximum daily outflow during the period was 975 c.f.s. on 1 August. No flood control was achieved during the period. 5540 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 CLARK CANYON DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION GLENDO DAM AND LAKE NORTH PLATTE RIVER BASIN WYOMING Normal conservation regulation for this project resulted in the annual pool drawdown in late summer and pool rise or refill in the fall and winter. Mountain snowmelt runoff forecasts into Glendo were near average. The maximum pool achieved during the period was 4633.52 on 4 May (17,967 A,F, below the flood control zone). The peak daily inflow was 4,325 c.f.s. on 13 July. Outflow on this date was 5,175 c.f.s. The peak daily outflow was 7,006 c.f.s. on 1 August. This was primarily for irrigation purposes. No flood control was achieved during this period. YEARS 1976 1977 GLENDO DPu~ AND LAKE 1976 - 1977 RESERVOIR REGULATION HEART BUTTE DAM AND LAKE (LAKE TSCHIDA) HEART RIVER BASIN NORTH DAKOTA Dry weather and irrigation releases during August and September caused the ~ke Tschida conservation pool to decline. Heavy snowmelt runoff in March and April caused the pool to rise several feet, but this was followed by another decline in pool level. Generous rains in late Hay and early June filled the conservation pool by 11 June, when Lake Tschida started to spill. Spilling continued until 26 July. The maximum pool recorded was 2068.00 on 18 June. 12,350 A.F. of the 223,650 A.F. of flood space was utilized. The maximum daily inflow was approximately 3,600 c.f.s. on 13 June. The outflow on this date was 703 c.f.s. The maximum daily outflow of 1,565 c.f.s. occurred on 18 June. No flood control was achieved during the period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F H A H J J YEARS 1976 1977 HEART BUTTE DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION JAL'IESTOWN DAM AND LAKE JAHES RIVER BASIN NORTH DAKOTA At the beginning of the period, 15 c.f.s. was being released from the joint use zone for downstream pollution abatement. This release was terminated on 1 October when the joint use storage zone was vacated. No other releases 'were made during the report period. A meeting on James River water shortage was held in Jamestown, North Dakota on 4 March. At this time the downstream cities of Mitchell and Huron, South Dakota requested release of water from Jamestown-Pipestem Reservoirs to aid their critically low water supply. However, heavy rainfall and runoff between the dams and the downstream cities during March relieved their emergency situation. Because of low seasonal runoff the joint use pool did not fill. Also the dry year prompted the downstream Sand Lake Refuge to raise the question of James River water rights. A meeting was held on 8 June in Aberdeen, South Dakota on this matter. The maximum pool during the period was 1431.83 on 1 August 1976. The peak daily inflow during the report period was 480 c.f.s. on 4 July. Releases on this date were zero, The maximum and only release during the period was 15 c.f.s. from 1 August to 1 October. No flood control was achieved during the period. ~'. ' -~- ··;----. FLOOD CONTROL ZONE:~~ -,-~~ ·'- ·---;,C. ~ . ~b=': f--0- I ~.'' ' ;--,·, --~-~ r -~ :-.:rc: ::i• I I 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 JAL'IESTOWN DAM AND LAKE • 1976 - 1977 RESERVOIR REGULATION KEYHOLE DAM AND LAKE BELLE FOURCHE RIVER BASIN WYOMING Irrigation releases and other losses from Keyhole Reservoir during the period were balanced by reservoir inflows. These releases were discontinued on 23 September and then resumed on 9 October to satisfy a request from a new user downstream. The outlet was shut off on 5 November and releases were not resumed until 15 June 1977. Beginning on 13 July 1977, transfer of about 25,000 A.F. of exchange storage held in Keyhole Reservoir during repair work on Belle Fourche Dam, South Dakota, was initiated. This transfer was scheduled for completion before the end of the irrigation season. The peak pool for the period was 4092.98 on 1 August• No flood space was utilized. The maximum daily inflow was approximately 800 c.f.s. on 7 April. There were no releases on that date. The maximum daily outflow was 308 c.f.s. from 27 July through the end of the period. No flood control was achieved during this period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 KEYHOLE DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION PACTOLA DAM AND LAKE RAPID CREEK BASIN SOUTH DAKOTA The established m1n1mum conservation releases of 15 c.f.s. (for storage above 29,000 A.F.) made during October through February resulted in a fairly steady poo.].. Seasonal runoff and low conservation releases resulted in ·a small pool rise during the March-April period. The maximum pool achieved was 4580.04 on 2 l,!ay. The peak daily inflow was 170 c.f.s. on 12, 15, 2fl, and 30 April. Outflow on these dates averaged approximately 133 c.f.s. The neak daily outflow was 200 c. f. s. from lh through 17 April. No flood control was achieved during this period. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 PACTOLA DAN AND LA..T(E 1976 - 1977 RESERVOIR REGULATION SHADEHILL DAM AND LAKE GRAND RIVER BASIN SOUTH DAKOTA Dry conditions continued well into the water year 1976-77 in the Grand River Basin. Inflows into Shadehill Reservoir were not sufficient to fill the con servation pool; however, rains during June and July and low outlet releases through the year helped maintain the conservation pool level. The maximum pool elevation was 2270.86 on 1 August 1976. No flood storage space was utilized. The peak daily inflow of approximately 900 c.f.s. occurred on 12 June. Outflow on this date was 36 c.f.s. The maximum daily outflow for the period was 65 c.f.s. on 1, 2, 3 August. No flood control was achieved. 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 SHADEHILL DAM AND LAKE 1976 - 1977 RESERVOIR REGULATION YELLOWTAIL DAH A!ID LAKE BIGHORN RIVER BASIN HONTANA Runoff into Bighorn Lake during the period was the lowest of record since 1935. Because of the low forecast and low actual runoff, no .Joint use storage w"s re~uested by the Corps. The maximum pool recorded during the period was 3636.37 on 31 October. During the runoff season, the maximum nool reached was 3634.64 on 23 June. This was 63,640 A.F. below the exclusive flood zone. The peak daily inflow was 6,767 c.f.s. on 3 August. Outflow on this date was 2,333 c.f.s. The peak outflow was 4,687 c.f.s. on 11 ,Tanuar;v. No flood con trol was achieved during this period. +I' . -1-'-7- n=t=1i €$• $t :3. ·~ ]$_~LEg §:/i'E rt3_ 111~~ ~~ :§!I ~-E~i:- fJ§~Tit- ~-E- iJlf TJi3i § 'i-tf-± +:f+ :;:a:-F ~~1 ~E+t :~if :=) j_, ,~If. fiJi=,-4,~ ::ffif-'"1):! •H-C, B:rl:icc..UJ,c., :;+!, '·']-' it'J[··. t1!:J.Wtlir1ffii ~ ~t-fb tt;_~f-L~1~ :rH-t ~}]:~ :l-$ ~~ .-~1-+t-r-:----,- ~rn~ H---~-1+ -~1+!- ~-,-r- -~. H- ~_j _ _,_, -,-r--1...--,- -l+rt' 67 68 69 70 71 72 73 74 75 76 A S 0 N D J F M A M J J YEARS 1976 1977 YELLOI-lTAIL DAM AND LAKE / OMAHA DISTRICT RESERVOIR REGULATION MANUAL AND REPORTS ~· . .. ···- . NEXT S<:;HEDULED DATE APPROVED SUB; DATE PROJECT '~'{ CORPS OF ENGINEERS MISSOURI RIVER DAMS-I )~~~· ... ".; FORT PECK Oct 1976 (F) '• GARRISON May 1967 (P) As of Jan 1977 ' OAHE Sep 19.70 (P) to be prepared __ ,•' BIG BEND Sep 1970 (P) by MRD with • FORT RANDALL Sep 1970 (P) District support . ~l GAVINS POINT Jan 1968 (P) as. requested • CORPS OF ENGINEERS TRIBUTARY DAMS-I CHATFIELD Jan 1973 (P) Jun 1979 (F) CHERRY CREEK Oct 1971 (F) Jun 1980 (UD) ., PIPESTEM Ju1 1975 (P) Jan 1979 (F) BEAR CREEK .. Dec 1977 (P) BUREAU OF RECLAMATION DAMS-I BOYSEN Dec 1966 (F) Jan 1981 (UD) GANYON FERRY Mar J.972 (P) Oct 1978 (F) CLARK CANYON Aug 1976 (F) (UD) GLENDO Apr 1970 (P) Jan ***1979 (F) JAMESTOWN Nov 1957 (F) Jan 1980 (UD) PACTOLA Feb 1977 (F) "** (UD) TIBER "* Jun 1981 (UD) YELLOWTAIL Jan 1974 (F) "** (UD) Jan ·1968 (P) Mar 1978 (F) CEDAR CANYON Jan 1971 (F) "** (UD) COLD BROOK Aug 1954 (F) Jun 1979 (UD) COTTONWOOD SPRINGS Sep 1973 (F) (UD) KELLY ROAD Jan 1971 (F) Jan *"*1980 (UD) PAPILLION CREEK May 1978 (P) SALT CREEK Jun 1967 (P) Jan 1978 (F) BUREAU OF RECLAMATION DAMS-II HEART BUTTE Feb 1951 (F) Jun 1980 (UD) KEYHOLE Jun 1969 (F) ...... (UD) SHADEHILL Nov 1951 (F) Jun 1979 (UD) I - DAMS REQUIRING REGULATION II - DAMS HAVING PRIMARILY UNGATED F .C. REGULATION I (P) PRELIMINARY MANUAL OR REPORT (F) FINAL MANUAL OR REPORT (UD) UPDATE * PRELIMINARY REPORT SUBMITTED ON 28 JULY *" UNDER CONSTRUCTION *** TO BE REVISED WHEN NECESSARY TO CONFORM WITH CHANGING REQUIREMENTS RESULTING FROM PROGRESSIVE DEVELOPMENT IN PROJECT AREAS, IMPROVEMENTS IN BASIC TECHNIQUES, OR OTHER RELEVANT FACTORS. (REF. PARAGRAPH 7C OF ER 1110-2-240, AND PARAGRAPH ~6i. APPENDIX III OF ER 1110-2-240 DATED 22 APRIL 1970). .· INCLOSURE 6 , -~~ rl Executive Office I (Ex. Off. Elements) (Engr. Divn. Branches) (Hydro. Engr. Sections) Automatic Data Processing ~ Service ~ Reservoir Regulation - Comptroller - Honitoring and Evaluation vlater Quality and Sediment - Construction Division Design 1- Hydrology and Heteorology - Engineering Division Foundation and Naterials r- Hydraulics - Office of Council Nilitary 1- Channel Stabilization -Office of Administrative Services - Program Development r- Operations Division Hydrologic Engineering r- Personnel r- Planning Public Affairs 1- Real Estate r- Safety Security '- Procurement and Supply ORGANIZATION CHART 01-!AHA DISTRICT