COLORADO RIVER Sl'ORAGE PROJECT

C 0 NSTR UCT I ON

and

INVESTIGATION

ACTIVITIES I EO STATES OEPAR MEN OF' E I ER I OR BUREAU OF RECLAMATION COLORADO RIVER STORAG E PROJEC AND PARTICIPATING PROJ ECLS

OVEMBER 1956

I I

LEGE NO

... 1 STORAGE UNITS * PARTICIPATING PROJECTS

c ...... PROJECT PLAN

A plan for the Colorado River Storage project and an initial group of participating projects has been formulated by the Bureau of Reclamation in cooperation with other Federal agencies and with the States of the Upper C olora do River Basin. The project report prepared in 1950 and a supplemental r:eport pre pared in 1953 were printed as House Document No. 364, 83d Congress, 2d Session. Reports on the participating projects in the initial group, s upple­ menta l to the 1950 report, were also completed in 1950 and 195 1. Since its introduction in the 195 0 re port, the project plan has been subject to modifi­ cations a s shown in the 1953 supplement, in the authorizing act, and in definite plan studies.

Colorado River Storage Project

; The various da ms a nd reservoirs of t he Colorado River Storage project

will regulate the flow of the river 1 thus permitting an expansion of irrigation and other water use i n the upper bas in within the limits of the Colorado River Compact. In most instances powerplants and s witchya rds will be installed at the dams a nd tra ns mission lines will be provided to transmit the power to load centers. Facilities will be provided a s appropriate for

recreation and to mitigate los ses of , a nd improve conditions for 1 the pro­ pa, gation of fish a nd wildlife . Minor flood control and other benefits , largely onevaluated at present, are antic ipated from the storage project .

The Colorado River Storage project as outlined in the 1950 report included ten storage units. Four of these were authorize d for construction by the act of April 11, 1956. It is anticipated that additional units will be authorized as they become needed. The four authorized units are the Glen Canyon, Flaming Gorge, Navajo, and Curecanti. Together they will provide about 34,570,000 acre-feet of reservoir capacity and about 1, 108,000 kilowatts of installed generating capacity. More than three-fourths of both capae1Ues will be provided by the Glen Canyon unit alone.

Participating Projects

Participating projects are those which will consume water of th~ Upper Colorado River system for irrigation and other purposes and which will require assistance from power revenues of the storage project in the repay­ ment of irrigation costs. An initial group of 11 participating projects was authorized by the act of April 11, 1956. These include the Paonia, Smith Fork, Florida, and Silt projects in Colorado; the Pine River project exten­ sion in Colorado and New Mexico; the Hammond project in New Mexico; the Central Utah project (initial phase) and Emery County project in Utah; and the Seedskadee, La Barge, and Lyman projects in Wyoming. The Pine River project extension has been excluded from the scheduled program of development. The remaining projects combined would provide water for a total of about 346, 460 acres, including about 115 ~ 440 acres of full service land and about 231,020 acres of supplemental service land. Summary of irrigation and power data Colorado River Storage Project and participating projects

Average annual water Irrigable area {acres) Total supply (acre-feet) Supple- reservoir Installed Increase Increase Full mental storage powerplant in useable in service service capacity capacity irrigation Units and proJects st.ream land land Total (acre feet) (kilowatts) supply Storage Units depletion Glen Canyon 28,040,000 900,000 576,000 Flaming Gorge 3,789,000 108,000 Navajo 62,000 1,709,000 39,000 Curecanti 1,032,000 100,000 14,000 I Subtotal N 34,570,000 1,108,000 691,000 I participating projects Paonia, Colo. 2,230 13,070 15,300 21,000 20,100 9,820 Smith Fork, Colo 1,423 8,056 9,479 13,650 10,300 5,700 Florida, Colo. 5,730 13,720 19,450 40,300 25, 740 13,900 Silt, Colo. 1,900 5,400 7,300 10,000 10,100 5,800 Hammond, N • fv'i ex. 3,900 3,900 18,500 8,970 Central Utah (initial phase), Utah, (excl. Vernal unit) 28,600 117,100 145,700 1,625,700 61,000 l/157/300 177,600 Vernal unit 14,700 14,700 37,300 17,900 11,800 Emery County, Utah 3,600 20,500 24,100 57,000 32,400 15,500 Seedskadee, Wyo. 58,775 58,775 285,000 264,000 140,000 Lyman, Wyo. 401600 401 600 43,000 32,500 La Barge, Wyoming 8,000 8,000 24,300 14..~ 290

Subtotal 114,158 233,146 347 ,304 ~.£] 32, . _950 61 1 000 613,140 403,290 Total 114 , 158 233,146 347,304 36,702 , 950 1~,000 613,140 1,094,290 .!/ In addition, an average of 48,800 acre-feet annually will be made available for n unicipal, industrial, and miscellaneous uses under the initial phase of the Central Utah project. Colorado River Storage Project Approp_·iations .. summary

1957 1958 1959 1960 1961 Sum

Glen Canyon $9,325,000 $27,300,000 $47,960:000 $46,182,825 $23 : 535,.000 $154 1 302 1 825

Flaming Gorge 1,300,000 4,800,000 10,098,335 12 r 675,000 12 1 000,000 40/873:335 Navajo 800,000 1,800,000 7,000,000 9,696,375 11,776,000 31,072,375 .Curecanti 1,400,000 1,400,000 Transmission Division 100,000 205,000 702,000 5,318,000 6,325t000

Subtotal 11,425,000 34,000,000 65,263,335 69,256,200 54,029,000 233,973,535

Paonia 1,000,000 3,105,375 903,000 5,008,375 Vernal 1,000,000 1,950,000 2,189,000 5,139,000 I w Smith Fork 487 : 500 1,500,000 1,987,500 I Hammond 487,500 1,300,000 1,787,500 Seedskadee 1,320,150 2,000,000 3,320,150 Florida 750,000 750,000

Subtotal 2,000,000 7,350,525 8,642,000 17,992,525

Advance Planning 1,575,000 1,142,000 770,000 797,550 938,000 5,222 ,550

Slippage & Under financing -2,944,500 -2,209,000

TOTAL $13,000,000 $35,142,000 $68~033,335 $74,459,775 $61,400,000 $252,035,110 VER STORAGE PROJECT CANYON UNIT

LOCATION: r Co lorado River Basin-- Northern Arizona in Coconino County a nd southeastern Utah in Kane a nd San Juan Counties. The dam is on the Colorado River a bout 4 miles south of the Arizona-Utah boundary . The reservoir will extend into s outheastern Utah .

AUTHORIZATION: Public Law 485, 84th Congress, 2nd Session (70 Stat. 109) , approved April 11, 195 6, and Public Law 85-529 (Stat. 225), approved June 2 7, 19 60 •

PLAN The primary purpose is the storage of flood flows of the Upper Colorado River and the generation of hydroelectric power . The stored water will allow compliance with the terms of the Colorado River Compact and will, by exchange, furnish an irrigation supply for the particip ating projects in the Upper Basin states.. In addition, there will be benefits from fish and wildlife conservation, a nd improved recreational opportunities a nd minor benefits to flood control and silt retention •

COS!' S (Federal)

Construction Section 5 (Ba sin Fund) costs_l/ Gle n Canyon Dam and Reservoir $ 173,236,887 Gle n C anyon powerplant & switchyard 119,536,000 Protection of Rainbow Bridge 25,000,000 General Property 7,931,000 Tot al $ 325,703,887 Section 8 costs National Park Service (recreation) 15,692,000 Bureau of Sports Fisheries & Wildlife 200,000 Total 15,892,000 Grand Total $ 341,595,887

Annual Operation, Maintenance, and Replacements Bureau facilities l/ 1,514 National Park Service (recreation) 1,532 Total 3,046

j/ Based on current value of awarded contracts and estimated value of completion contracts at January 1960 price level, including contingencies for possible increases in price levels. 1/ Based on 19 60 prices with replacements computed using 4l 2 7/8 percent sinking fund.

-4- COLORADO RIVER STORAGE PROJECT GLE N CANYON UNIT (Continued)

DISTRIBUTION OF ALLOCATED COSI'S AND REPAY !ENT (Unit- -$1, 000)

Section 5 (Basin Fund) Section 8 Fish & Rec- Fish & wildlife reation wildlife lrri- enhance- enhance- gation Power ment ment Total Distribution Construction c o sts 1/ 42 ,·643 273,632 6,.386 15,692 200 338, 553 Reimbursable interest duri ng c onstruction at 2 7/8 percent 24,903 24, 903 Annual OM &R costs - Sec. 5 on 2 7/8 pet. and Sec. 8 on 2 1/2 percent 6 1,503 5 1, 532 3,046

Repayment Jd Construction costs 42,643 273,632 NR NR NR 316,275 Int. during canst. 24,903 24,903 Annual OM&R _y'6 1,503 1,509

l/ Excludes $2,415, 000 c ontribute d fund s and $628 , 000 CRDF expenditure. 1:./ Paid with Storage project pow er revenues . 1f Paid from Bureauts annual a ppropriat ion • .1/ Paid from Park Service's annual appropriation. NR Nonreimbursable •

Explanation: The authorized units of the CRSP, including the Glen Canyon Unit, are considered as one project in the cost allocatio n and repayment studies. All reimbursable costs will be repaid from pow er revenues through the Upper Colorado River Basin .Fund. W ith average selling rat es of 6 mills a kilowatt-hour for firm energy and 2.5 mills for nonfirm energy, net power revenues will be sufficient to repay the required costs of each unit of the project within 50 years following completion.

IRRIGATION No irrigation will be directly provided by this unit. However, by providing storage to meet commitments to the Lower Basin, it will permit upstream irrigation diversions by participating projects.

POWER AND MUNIClPAL WATER

Power: Powerplant' s nameplate rating will be 900, 000 kilowatts. Municipal Water: Water will be furnished for the town of ~ge, Ariz.

Benefit-Cost Ratio: 1 .4:1 -s- COLORADO RIVER STORAGE PROJECT GLEN CANYON UNIT (Continued)

PROJECT FEATURE S

Dam Type Concrete arch Height above river level (ft.) 573 Height above foundation (ft.) 710 Volume of concrete (cu. yds . ) 5,.120,000 Total capacity of spillways ( cfs) 27&,000 Outlet capacity ( cfs) 15,000 Crest elevation of dam (ft.) 3,715 Crest length (ft.) 1,500

Reservoir Maxi,:mum initial capacity at normal water surface elevation 3, 700 feet (acre-feet) 28,040,000 !l)itial inactive capacity at elevation 3, 490 feet (acre-feet) 6,535,000 Initial active capacity at elevation 3., 700 feet (acre-feet) 21,505,000 Water surface area at elevation 3,.7{)0 feet (acres) 162,700

Powerplant Rated installed capacity (kw) 900 ,.ooo Turbine capacity {hp .) 1,244,000 Maximum static·operating head (ft} 56 Minimum static operating head {ft) 350 Estimated averag-e annual energy deliverable to load ceruer.s ikw .:-i1rs .) 4, 32-9,.000, 000

HYDROLOGY (Lee's Ferry)

Drainage area above dam (sq. miles) 1.07,900 Ave.rp.ge annual historical runoff, 1906-59 (a .. f .), 13·, 54~ 1 OQO Max.tmum annual historical runoff, 1921 (a .f.) 20,.69l,OOO Miniro\liD annual historical runoff, 1934. (a .f.) 4,.317 ,000 Inflow design flood runoff, 30-day volume (a .f.) 6,270,000 Inflow design flood·peak discharge (cfs)· 380,000

-6.:... 1 R STORAGE PROJECT ~ I G GORGE UNIT

LOCATION: Upper lo:-ado River Basin. Storage dam and powerplant on Green River in northern Utah about 6 miles south of Utah- yarning border.

AUTHORIZATION: Public Law 485 , 84th Congress, 2nd Session {70 Stat. 109}, approvedAprilll, 1956, and Public Law 85-529 (74 Stat. 225)! ar~proved June 27, 1960.

PLAN Flaming Gorge un~t will regulate the flow of Green River for power generation and , by exchange, for consumptive use of water. Other purposes include -ecreation, fish and wildlife propagation, and flood control to a mi::-10:- exten···. Uni-'- features include a dam and reservoir, powerplant, svvitch·-ard_. a nd general property which primarily involves structures and .:.mpro· ements at the new town of Dutch John, Utah, established as a ··a sidence for personnel connected with construction and operation of the unit. A transmi ssion system will be provided as part of the Transmission division of the Co~orado River Storage projecto Facilitie s wL e provided for recrea,ion and fish and wildlife propagatio. by t.he National Park ServiQe and the Bureau of Sport Fisheries a nd ildlife .

CO SI' S (Federal)

Constructio~ Section 5 (Basin Fu11d) costs .!/ Flaming Go·'"ge Dam and Reservoir $ 46,145,000 Flaming Gorge powerplant & switc.hyard 17,241,000 General property 3,205,000 Total 66,591,000

Section 8 costs National Park Service (recreation) 3,109,000 Bureau oi Sports Fisheries & Wildlife 1,198,000 Total 4,207,000 Grand Total $ 70,898,0QO

Annual Operation, Maintenance and Replacements t o.; Bureau facilities YS 469,000 National Park Service (recreation) 346,000 Bureau of Sports Fisheries & Wildlife State cost Total $ 815,000

!/ Based on current value of awarded contracts and on estimated cost of completion, using 19 60 price levels • j/ Based on 1960 prices with replacements computed, using a 2 7/8 percent sinld,ng fWld. -7- COLORAD O RI VER STORAGE PROJECT FLAMING GORGE UNIT (Continued)

DISTRIBUTION OF ALLOCATED COsrS A D REPAY 1ENT (U nit--$1 , 000)

Section 5 (Basin Fund) Section 8 Fish & Fish and wildlife wildlife Irri- ga- enhance Rec - En Miti ment rea- ga tion Power hance Distribution of tion ment t ion Total allocated costs - -- Construction costs 1/ 12, 677 46,8 60 6,967 3,109 383 81 5 70 ,811 Reimbursable interest dur- ing constn.tction --2 7/8 percent 3 , 197 3,197 Annual OM&R costs Sec • 5 on 2 7/8 pet. & Sec. 8 on 2 1/2 percent 2 459 8 34 6 815

Repayment J:l Construction costs 12, 677 46,8 60 NR NR NR NR 59,537 Interest during construction 3,197 3,197 Annual OM&R 2 459 11 y y y 461 .!/ Excludes $87,000 CRDF expenditure. 1:/ Paid with storage project power revenues. 1f Paid from Bureau's annual appropriation. Y Paid from National Park Service's annual appropriation. ~ Paid by State. NR Nonreimbursable •

Explanation: The authorized units of the Colorado River Storage Project, including the Flaming Gorge unit, are considered as one project in the cost allocation and repayment studies. All reimbursable costs will be repaid from power revenues through the Upper Colorado River Basin Fund. With average selling r:ates of 6 mills a kilowatt-hour for firm energy and 2 • 5 mills for nonfinn ener:gy, net power revenues will be sufficient to repay the required costs of each unit of the project within 50 years following completion.

S.neflt-aost Ratio: 1 • 3:1

-8- COLORADO RIVER STORAGE PROJECT FLAMING GORGE UNIT (Continued)

PROJECT FEATURES

Dam Type Concrete arch Height above river level (ft) 445 Height above foundation (ft) 502 Volume of concrete (Cu Yds) 1,000,000 Spillway capacity (cfs) 28,800 Outlet capacity (cfs} 4,000 Crest elevation (ft) 6,047 Crest length (ft) 1,180

Reservoir Maximum initial capacity at normal water surface elevation-- 6040 feet (a. f. } 3,789,000 Initial inactive capacity at elevation 5, 871 feet (a.f.) 273,000 Initial active capacity at elevation 6, 040 feet (a .f.) 3,516,000 Water surface area a t elevation 6, 040 ft (acres) 42,020

Powerplant Rated installed capacity (kw) 108,000 Turbine capacity (hp) 150,000 Maximum static operating head (ft} 440 W&nirnum static operatj.ng head (ft) 265 Estimated average annual energy deliverable to load centers (kwh) 429,000,000

HYDROLOGY (Flaming Gorge Darnsite}

Drainage area above darn (sq. miles) 15,000 Average annual historical runoff, 1906-58 (a .f.} 1,772,000 Maximum annual historical runoff, 1908 (a .f.) 2,860,000 Minimum annual historical runoff, 1934 (a .f.) 435,000 Inflow design flood runoff, 30-day volume (a .f.) 1, 797·, 000 Inflow design flood peak discharge (cfs) 76,000

-9- COLORADO RIVER ST ORAGE PROTECT NAVAJO UNIT

LOCATION: Upper Colorado River Basin. The Navajo Dam site is located on the San Juan River in San Juan and Rio /uTiba

Counties 1 New Mexico 1 approximately 39 miles east of Farmington, New Mexico.

AUTHORIZA1'ION: Public Law 485, 84th Congress 1 2nd Session (70 Stat. 109), approved April 11, 1956; and Public Law 85r-529

(7 4 Stat 2 25) approved June 27 1 19 60 .

PlAN: The Navajo Unit is one of the storage units of the Colorado River Storage Project. It will store flows of the San Juan River for _irriga­ tion of lands in the Navajo Indian Irrigation project and for such other uses as may be approv~d. It will also provide storage for control of floods, and will enhance the fishing and recreational values of the area. Facilities to be built by the Bureau of Reclamation include the Navajo Dam and the 1, 709,000 acre-foot Navajo Reser­ voir. Recreation facilities adjacent to the reservoir will be provided by-the National Park Service. The Bureau of Sports Fisheries and Wildlife will undertake measures to maximize fishing and hunting opportunities at the resen.o ir sit~.

cosrs: (Federal)

Construction Section 5 (Basin Fund) costs 11 Navajo Dam and Reservoir $ 39,300{000 Permanent operating facilities 51,500 O& M housing 20,500 Total 39,372,000 Section 8 costs National Paz:k Service (recreation) 2,983,000 Bureau of Sport Fisheries & Wildlife 502,000 Total 3~485~;000 Grand Total $ 42,857,000

Annual Operation~: Maintenance and Replacements _: Bureau facilities .vs 41,000 National Park Service (recreation) 199.000 Surea~ of Sport Fisheries & Wildlife Paid by State Total $ 240,000

1./ Based on contract prices or, where lacking, on estimates using August 1958 price level. ~ Based on 1960 prices with replacements computed using a 2 7/8 percent sinking fund.

-10- -- ... - COLORADO RIVER STORAGE PROJECT _0~ NAVAJO UNIT (Continued)

_::.::. DISTRIBUTION OF ALLOCATED COSTS AND REPAY lENT: (Unit--$1, 000) .,

Secti.on 5 (Sa sin Fund) Section 8

Fish & Fish Flood wildlife Rec- and Irri- con- enhance re

Explanation: The authoriZed units of the Colorado River Storag€ -Project, including the Navajo unit, are considered as one project in cost allocation and repayment_studies. All reimbursable costs will be repaid from power revenues through the Upper Colorado River Basin Bund. Vv'ith average sell­ ing rates of 6 mills a kilowatt-hour for firm energy and 2.5 mills for nonfinn energy, net power revenues will be sufficient to repay the ..required ·costs of each unit of the project within 50 years following its completion.

Benefit-Cost Ratio: 1 .2:1

-11- COLORADO RIVER STORAGE PROJECT NAVAJO UNIT (Continued)

PROTECT FEATURES:

The Navajo Da m will be an earth and rock- fill structure wit h a

volume of 26 , 300 , 000 cubic yards 1 structural height 405 feet,

and crest length 3 1 700 fee t . Storage c apacity in acre- feet as follows:

Conserva tion Elev. 4,990 to 6, 085 1, 036, 000 Ina ctive Elev. 5,882 to 5,990 498 ,000 Dead Elev. 5 , 7 20 to 5 , 88 2 175, 000 Total 1, 709 , 000

A s urcharge of 273, 000 acre- feet (ma ximum wa ter surface e levation 6085-6101. 5) in combina tion with a spillwa y discharge of 34, 000 cfs and a n outlet works discha rge of 3, 600 cfs protect s against the

spring de sign flood (pea k 107 I 000 cfs, 30- day volume--1, 037, 700 acre-feet).

HYDROLOGY:

Drainage area above da m 3, 220 sq. mile ~ Average annual historical runoff (Blanco, New Mexico, 1906-56) 1, 204, 000 acre-feet Maximum annual recorded runoff (1941 New Mexico) 2, 35 1, 000 acre-feet Minimum annual recorded runoff (1951 New Mexico) 33 1, 000 acre-feet Momentary maximum discharge recorded

(August 11, 1929 1 Blanco, New Mexico) 25 , 000 cfs Momentary maximum discharge estimated (October 6, 1911, Bloomfield, N. M.) 80,000 cfs Momentary minimum discharge estimated (August 18, 24, 25, 1939) 17 cfs

Inflow design flood runoff 30-day volume 1, 040 I 000 acre-feet Inflow design flood runoff 4-day volume

(spring flood) 318 1 000 acre-feet Inflow design flood runoff 4-day volume (fall flood) 396,000 acre-feet Instantaneous design peak flow (spring flood) 107, 000 cfs Instantaneous design peak flow (fall flood) 138,000 cfs

-12- ._..,.,_0 RIVER STORAGE PROJECT C UREC ANTI UNIT

LOCATION: On the Gunnison River, a tributary of the Colotado River in west-central Colorado,

AUTHORIZATION: Public Law 485, 84th Congress, 2nd Session (70 Stat. 109), approved April 11, 1956, subject to certification by the Secretary of the Interior that the benefits will

exceed the cost. Such certification on two (namely 1 the Blue Mesa and ' arrow Point) main features was made July 1.4, 1959. Also, Public Law 85-529 (74 Stat.

225) approved June 27 1 1960.

PLAN:

The ultimate plan for the Curecanti unit includes a series of dams, reservoirs, and power-plants that w ould fully develop the power head along a 40-mile canyon section of the Gunnison River below Gunnison, Colorado, and above the Black Canyon of the Gunnison National Monument.

In addition to power generation, the Curecanti unit will regulate

the flow of the Gunnison River 1 thus providing benefits to flood control and irrigation. The reservoirs will provide extensive rec­ reational benefits, part of which will be withi~ the adjacent Gun­ nison National Forest. The reservoirs will adversely affect fisq and wildlife resources according to estimates 'Of the Bureau of Sport. Fisheries and Wildlife. i

Flows of the Gunnison River. will be large!y c~ntrolled by the Blue Mesa Reservoir, the larger and uppermost ~f the two initial reser­ voirs. Water released £:-om the Blue Mesa· Reservoir through a powerplant at the dam will receive short-term regulation at the Morrow Point Reservoir immediately downstream. Water releases through the Morrow Point Dam and powerplant will be relatively uniform in order to satisfy downstream water rights and to maintain a flow of 100 second-feet or more through the Black Canyon of the Gunnison National Monument. The power output of the Blue Mesa powerplant will fluctuate to meet variations in load requirements while the Morrow Point powerplant will be operated more for base loads, particularly during the irrigation season. Power from both plants will be transmitted to load centers over transmission lines which will interconnect powerplants of the Colorado River Storage project with existing power systems in the power market area.

-13- COLORADO RNER STORAGE PROJECT C URECANTI UNIT (Continued)

COSTS: (Federal) (Unit--$1, 000)

Construction Section 5 (Basin Fund) c osts J1 Blue Mesa Da m and Reservoir $ 35,630 Morrow Point Dam and Reservoir 16,600 Blue Mesa Powerplant 8,650 Morrow Point Powerplant 7,570 Blue Mesa Switchyard 810 Morrow Point Switchya rd 35 0 General Property 240 Total 69, 850

Section 8 costs National Park Service (recreation) 3, 744 Bureau of Sport Fisheries and Wildlife 31315 Total 7,059 Grand Tota l $ 76,909

Annual Operation, Maintenance, a nd Replacements Bureau facilities Y 432 National Park Service (recreation) 263 Bureau of Sport Fisheries a nd Wildlife Paid by State Total 695 J/ Estimates based on January 1960 prices. y Replacements computed using 2. 632 percent sinking fund.

DJS!BmUTION OF ALLOCATED COSTS AND REPAYMENT: (Unft--$1, 000) SectionS Section 8 {Basin Fund) Irri- Flood Rec- Fish & ga- con- rea- wildlife tion trol Power tion enhance-Total Distribution of allocated costs ment Const. costs 1/ 2,305 904 66,509 3,744 3,315 76,777 Reimbursable interest / during const. at 2. 63 2 percent 3,627 3,627 Annual OM&R--2. 632 on Sec. 5 and 2. 5 percent on Sec. 8 1 1 430 263 y 695 epayment Const costs }/l, 305 NR Jl'6,509 NR NR 68,814 Interest during const. 2.632 I)K08Dt -- -- j/3,627 3,627 1/1 y j/430 y 1:1 431 -14- COLORADO RIVER STORAGE PROJECT CURECANTI UNIT {Continued)

Jl Excludes $97 1 000 nonreimbursable CRD Funds and $35, 000 contributed funds. Y To be paid by State. 3/ Paid with Storage project power revenues . .Y Paid from Bureau's annual appropriation. _yt Paid from Park Service's annual appropriation. NR Nonreimbursable.

Explanation:

The authorized units of the Colorado River Storage project, including the Curecanti Unit, are considered as one project in cost allocation and repayment studies. All reimbursable costs will be repaid from power revenues through the Upper Colorado River Basin Fund. With average selling rates of 6 mills a kilo­ watt-hour for firm energy I 2. 5 mills for nonfirrn energy, and $15 per kilowatt of excess capacity, net power revenues will be suf­ ficient to repay the required costs of each unit of the project within 50 years following completion .

Benefit-Cost Ratio: 1. 23: 1

-15- COLORADO RIVER STORAGE PROJECT C URECANTI UNIT (Continued}

POV.J ER Blue Morrow esa Point Feature Feature Dat e of initial w a ter storage November 1, 19 65 January 1, 1970 Date of initial power generation June 1, 1966 April 1 r 19 7 0 Installed generator capacity (kilowatts} 60,000 40 , 000 Average annual equivalent saleable energy over 1 00 years (million kwh) 250 254 Gross maximum head (ft) 356 . 5 405.0 Gross minimum head (ft) 235 .0 385.0 Gross rated head (ft) 286 . 0 385.0

PROJECT FEATURES

Storage dams Location 1 1/ 2 miles below 11 miles below Sapinero, Colo. Blue esa Darnsite Type Earth Concrete arch Height above streambed (feet) 342 405 Crest length (feet) 1,200 650 Volume of embankment (cubic yards) 3,510,000 300,000 Spillway capacity (cfs) 2 6, 510 31,000 Outlet capacity (cfs) 2,600 2,700

Reservoirs Normal water surface elevation (feet) 7,516.5 7,160 Maximum water surface elevation (feet) 7,519 71165 Normal water surface area (acres) 9,000 825 I Initial storage capacity (acre-feet) 915,000 117,000 Active 715,000 15,000 Inactive 200,000 102,000

-16- COLORADO RIVER STORAGE PROJECT TRANS tiSSION DIVISION

LOCATION: The Transmission Division facilities will be located within the states of the Upper Colorado River Basin-­ Arizona, Colorado, Utah, ew .exico and Wyoming.

AUTMORIZATION: Public Law 485 , 84th Congress, 2nd Session (70 Stat. 1 09) , approved April 11, 1956; and Public Law 85-529 (74 StaL 225}, approved June 27: 1960 .

PIAN":

The purpose of the Tra smission Division is to deliver Colorado River Storage Project power to major oad centers or to delivery points from which other agencies may transmit the power to load centers, and to interconnect the generating plants of the Colqrado River Storage Proj ec_ with each o er and with other Federal }:.1roj ects. A plan for an all-Federal trai'lsmission s .. stem to accomplish such purpose was announced by the Secretary of the Interior on May 18, 1960, as a yardstick system for rate-making purposes and to evalu­ ate proposals to wheel project power over utility lines. The attached map shows the yardstick system facilities •

COSTS:

(January 19 60 prices}

Construction (Identified Program Items} Flaming Gorge-Oak Creek single circuit wood pole transmiss.:.on lines c.:nd substations $ 11, 200, 000

Glen Canyon-Curecanti double and single circuit steel tower 230-kv transmission lines and substations

Various future transmission lines and interconnection facilities r including service facilities 12614751000 Total $176,24S,QOO

Annual Operation~ !v1aintenance and Replacements (Replacements based on 2 7/8 percent sinking fund) $ 2, 798, 000

-17-. COLORADO RIVER STORAGE PROJECT TRANS!I/ ISSION DIVISION (Continued)

BE NEFIT - COST ANALYSES:

The costs of the Transmission Division are distributed among the Glen Canyon, Flaming Gorge , and Curecanti Storage units, and the Central Utah participating project for economic analyses. The benefit-cost ratio for the Transmission Division would, there­ fore, be the same as the ratio for these power producing units combined.

COsr ALLOCATION AND REPAYM ENT:

All costs of the Transmission Division are allocated to power and, except for $100,000 spent on investigations from the CRD fund are reimbursable from Storage Project power revenues.

Construction costs $ 176,245,000 Less nonreimbursable CRDF expenditure 100,000 176,145,000 Interest during construction--2 7/8% 6,292,000 TOTAL reimbursable capital cost $ 182, 437 ,000 Annual OM&R-- (2 7/8% sinking fund) $ 2,798,000

Explanation: The authorized units of the Colorado River Storage Projept, including the Transmission Division, are considered as one project in cost allocation and repayment studies . All reim­ bursable costs will be repaid from power revenues through the Upper Colorado River Basin Fund. ith average selling rates of 6 mills a kilowatt-hour for firm energy, 2 . 5 mills for nonfirm energy, and $15 per kilowatt -year for peaking capqcity, net power revenues will be sufficient to repay the required costs of each unit of the project within 50 years following completion.

PROJECT FEATURES:

The Transmission Division includes all power transmission facil­ ities needed for the Colorado River Storage Project and partici­ pating projects excluding the swltchyards at the powerplants • The yardstick system as shown on attached map includes lines and sub­ stations to deliver project power at the following points:

Arizona Fredonia, Glen Canyon, and Phoenix

Colorado ·craig, Gunnison, Montrose, Pueblo, and Rangely

-18- COLORADO RI VER STORAGE PROJECT TRANS 7ISSION DIVISION (Continued)

New Mexico Four Corners and Albuquerque

Utah Flaming Gorge, Heber, Sigurd, and Vernal

:! yarning Pilot Butte

RE W!ARKS:

The five major utilities in the Upper Basin States have proposed that the Federal Government build only a portion of the transmission system and that the utilities build the remaining lines or utilize exist­ ing lines to wheel project power to the points show n on the attached map. Following are the lines which the utilities feel the Federal Government should build , and the initia l portions of these lines are presently programmed as indicated under "Costs: "

One 230-kv line Glen Ca nyon - Four Corners Two 230-kv lines Four Corners - Gureca nti-Poncha (near Salida) Wood pole lines as needed from Flaming Gorge to serve Vernal,

Rangely 1 and Craig and to interconnect the storage project with existing Colorado-Big Thompson Proj ect facUlties •

Based on the aforementioned utilities' proposal and the wheeling rates offered by the utilities 1 the Bureau of Reclamation i s now studying the proposal and its relationship to the following factors:

1. Ability of the proposed system to serve preference customers.

2. Integration of Federal power facilities.

3. Effect on the project feasibility, payout, and irrigation assistance.

After a decision has been reached regarding the wheeling proposal, further detailed programming of transmission construction will be undertaken.

-19- COLORAOO RIVER STORAGE PROJECT TRANSMissiON SYSTEM - ALL-FEDERAL YAROOTICK TRANSMISSION SYSTEM

Legend Mont. Ir---- Wyo. lzydroelec tri c poverpla.nt ---l Substations Transmission Lines 230kv I 138kv /Pilot Bur I ll5kv 0 I Casper I I r -- Idaho 1 1 jUu.!. --t / ; Heber ~::J!:.~ ' Provo • - ·v- · ra:~ .. .A. ..Oe.k Creet, Denver / 1 Central u~ 6KremmJ.ing I I • Green Mountain Grand Junct~on i 0 4Sigurd \ Manr se I ', ... ·-,. l dania '

I ~-;:~l./ii:j~:§§§~ ,·vI

l, • ) I ' i Phoenix Sub s o~Nrntx I

~~~-- : COLORADO RIVER STORAGE PROJECT PAONIA PARTIC IPATING PROJECT

LOCATION: Nest-central Colorado on the North Fork of the Gunnison River and its tributaries.

AUTHORIZATION: Authorized and partially constructed under Act of June 25, 1947, (61 Stat. 181). Reauthorized as a participating project with the Colorado River Storage Project by the Act of April 11, 195 6, (70 Stat. 1 OS).

PLAN

Construction of the Paonia Reservoir on .i uddy Creek, a tributary of the North Fork of the Gunnison River, will regulate runoff for irrigation of lands under the Fire ountain Canal which diverts from the river. Enlargement and extension of the Fire iountain Canal are part of the project development. Some water from Leroux Creek, including import­ ations to the creek heretofore used on lands under the Fire ountain Canal and its extension, will by exchange be transferred to lands above the canal in the project's Leroux Creek division . Improvements of existing small reservoirs on the headwaters of Leroux Creek will be accomplished independently by the water users. In addition to irrigation of 2,230 acres of new land and 13,070 acres of supplemental land, the project will provide benefits to fish and wildlife, recreation, and flood control. Repayment will be completed in 68 years. Reim­ bursable costs that are beyond the repayment ability of the irrigators will be paid from the Upper Colorado River Basin Funds apportioned to Colorado.

COSTS

Basin Funds Pao nia Dam and Reservoir $5,645,000 Fire Mountain Canal 2,019,698 Land Drains 80,000 Unprorated investigation costs 18,794 Subtotal 7,763,492 Section 8 Recreational development 41,700 Fish and WildWe 10,000 Subtotal 51,700 TOTAL $7,815,192

-21- COLORADO RIVER STORAGE PROJECT PAONIA PARTICIPATING PROJECT (Continued)

PROJECT FEATURES

Paonia Dam

Located on Muddy Creek 1 16 miles east of Paonia 1 Colorado. Type rolled earth and rock fill Height above streambed 180 fe-et Height above bedrock 205 feet

Volume 11 200 1 000 cu. yds .

8 pill way capacity 12 1 5 0 cfs .

Outlet capacity (at res . elevation 6 1 3 70) 700 cfs .

Paonia Reservoir

Elevation at maximum controlled storage (21 1 000 a f. ) 6, 447.5

Active storage capacity (initial) 18 1 300 af. Active storage capacity (after 100 years) 11, 000 a£. Storage below bottom of outlet 2, 700 af. Capacity allocated to sediment 10,000 af.

Fire Mountain Canal Canal length without extension 30 miles Length of extension 3.5 miles Canal capacity:. Before After enlargement enlargement _At head 80 200 At Leroux Creek 40 100 At end of extension 6

HYDROLOGY AT PAONIA DAMSITE

Drainage area 246 sq. mi. Annual runoff, average (1949 to 1954) 98 1 100 a£. Annual runoff, maximum (1952) 176,400 af. Annual runoff, minimum (1951) 65,570 af. Maximum discharge of record (May 4, 19 52) 3,400 cfs. Minimum discharge of record (Sept. 1-3, 1954) 8. 4 cfs. Inflow design flood, volume 15 days 119, 700 af. Inflow design flood, peak discharge 13,300 cfs.

Pres~pt flooq damage consjats principally pf soil eroaion and

1 damage to bridges 1 diversion dams and other structures .. ·· The damage occurs during the spring and early summer snow melt periods. -22- REMARKS

The North Fork Water Conservancy District was formed in 1941 and on June 11, 1948, entered into a contract with the United States for repayment of the costs of the Paonia Project. Construction of the Project was then initiated and the principal work on enlarge­ ment of the Fire Mountain Canal was completed in 19 51. An amenda­ tory repayment contract between the conservancy district and t he United States was executed on August 21, 195 7, in conformance with reauthorization under Public Law 485 and changes in the project plan subsequent to the original repayment contract. The contract work for the dam and relocation of the highway is now underway and work on the Fire Mountain Canal extension will be started this fiscal year. The project is scheduled for completion in fiscal year 1962.

-22 a- ··. ' Su'\0

EXPLA NATION 01 ntool Proj« 1 feotur es

Pruenlly "rtQot•d londs to recelv« project water

New lono• to r~ elve proj ect wu lor -~- Canol

Res~r¥Oif

0 INl RIO R OUR AU 0 R CL .AMATION R GIO N 4 PAONIA PROJECT COLORADO

DEC. 19 5 4

--·----&C.UIAM 551 · 400- 65 COLORADO RIVER STORAGE PROJECT

C ENTRAL UTAH PARTIC IPATING PROJECT VERNAL UNIT

LOCATION: Northeast Utah in Ashley Valley of the Uintah Ba sin, approximately centered around Vernal, Ut ah .

AUT HORIZED: Initia l phase of the Central Utah project, including t he Vernal unit, a uthorized as a participating project with the Colorado River Storage project by the Act of April 11, 1956 (70 Stat. 105 ).

PIAN:

Through storage regulation and water exchanges , t he Verna l unit will provi de s upplemental irrigation water for 14 , 700 a cres of land and 1, 600 acre-feet of water a nnua lly to supplement the municipal supplies of Vernal, Naples , Maeser, and surrounding 'r . areas. The unit wi.ll also provide benefits to fis h and wildlife and recreation. Excess flows of Ashley Creek will be diverted at the Ft. Thornburgh Diversion Dam into the Stanaker Fe eder Canal and conveyed to the Stanaker Re servoir. Wa ter stored in the reservoir will be released into the Stanaker Service Cana l and delivered to existing irrigation canals and ditches. The water will in part replace Ashley Creek water, including releases from upstream reservoirs. Some of the replaced water will be used on lands above the Stanaker Service Canal and some will be diverted from Ashley Spring on Ashley Creek into the municipal pipeline • Land drains will be provided as needed and some sections of existing canals will be lined to prevent seepage. A pipe system will be constructed for stock-watering purposes during the nonirrigation season to save for unit storage and use water now lost through open canals. Recreational and fishing attractions will be provided at Stanaker Reservoir. Small tracts of land distributed through the unit area will be acquired and developed for upland game, and a pump and pipeline will be installed to deliver water from Green River to the Stewart Lake State Refuge • Repayment of reimbursable construction costs will be complete in 50 years, following a 3-year development period. Irrigation costs that are beyond the repayment ability of the irrigators will be paid from the Upper Colorado River Basin Fund apportioned to Utah.

-24- C OLORADO RIVER STORAGE PROJECT CENTRAL UTAH PARTICIPATING PROJECT VERNAL UNIT (Continued)

PROTECT FEATURES:

Distribution System

The existing distribution system will be used. Three new laterals will be constructed to convey water from the Stanaker Service Canal to segments of the existing Ashley Central Canal and a fourth will directly serve a land area loca~ed near the junction of the two canals. The four laterals will have a total length of about 1. 6 miles and their capa cities will range fro 10 to 40 cfs o

Stanaker Dam Located on offstream Stanaker Draw, 3 . 5 miles north of Vernal. Type rolled earth-fill Height apove ground 140 ft. Height above foundation 145 ft. Volume of embankment 1, 820,000 cu. yds. Spillway capacit· (Emergency only) Outlet capacity (at res elev. 5, 4 72) 300 cfs. Crest length 2,400 ft.

Stanaker Reservoir Elevation at norma l water surface (37, 300 af.) 5,517.8 ft. Active storage capacity 33, 200 af. Inactive storage capacity 4, 100 af. Total storage capac 't y 37,300 af. Reservoir surchc.rge capacity above normal water

surface elevation (5 1 S20o 5 ft. ) 2, 170 af.

Fort Thornburgh Diversi on Dam Type earth fill Length 700 ft. Height above streambed 10 ft. Spillway capacit · 3,400 cfs. Headworks Capacit1es: Stanaker Feeder Canal 400 cfs. Rock Point Canal 310 cfs.

Stanaker Feeder Canal Length 3. 1 miles Capacity 400 cfs.

Stanaker Service Canal Length 11.8 miles Copocity a' head 300 cfs. -25- . ' ~ - ·-- ... _ -.--:- ~ ·~ ...... __- ~--,..- ---- ·

COLORADO RIVER STORAGE PROJECT CENTRAL UTAH PARTICIPATING PROJECT VERNAL UNIT (Continued)

ater savings pipe system ngth 17. 3 miles pacity a t head 289 gal./rnin.

l DROLOGY: hley Creek - "Sign of the Maine ' Drainage area 241 sq. mi. Period o.r record 1940- 56 Average runoff: 1940- 56 92,800 af Maximum annual ru off 142,300 af. Minimum annual runoff 52,400 af. Maximum daily discharge of record 2, 65 0 cfs . Minimum daily discharge of record 14 cfs . Design flood (Fto Thornburgh Diversion Dam) 3 , 400 cfs . Inflow design flood Stanaker Dam - - Design Peak 10,500 cfs. Design volume (18 hour) 2,170af.

EMARKS:

The Definite Plan Report was submitted to the Commissioner May 31, .95 7, and approved by the Secretary August 2, 195 7. : The Uintah Water Conservancy District has been organized for the mrpose of contracting with the Federal Government for construction of he Vernal Unit and for repayment through the Upper Colorado River Basin 'und of certain costs relating to construction, operation, maintenance 1nd replacement of unit works . A Contract between the Conservancy District 1nd the United States was executed July 14, 1958. Contracts between the Jintah Water Conservancy District and the various major canal companies :or the sale and use of irrigation water were executed in November and December, 195 8. Contracts between the Conservancy District and the various .owns and water companies for the sale and use of municipal water were axecuted in October and December, 1958. The prime contract for the construction of Stanaker Dam was awarded May 4, 1959, and the scheduled completion date is January 1961. In addition, there are other features of the project under preconstruction.

The shortacre of irrigation water during the summer months has plagued this area since it was settled. Consequently, there has been considerable interest and activity on the part of the farmers and civic leaders for the constnlction of this unit as well as for the entire Upper Colorado River project.

-26- • IT!O ST4 ES OEPARiME OF E INTERIOR BUREA U Of RECLAMA ION ~- RE 10 4 RESERVO JR CLEARI CENTRAL UTAH PROJECT VERNAL UNIT U A JANUAR 1960

-EGE 0

STANAJ

!

STANAKER SERVICE CANAL

.,. T ,& • ./ : c

LOCATION: West-central Colorado along Smith Fork of Gunnison River 'n v 'cinity of Crawford, Colorado, Upper Colorado River Basin.

AUTHORIZATION: Authorized as a participating project with the Colorado River Storage Project by Act of April 11, 1956 (70Stat. 105).

PLAN

Crawford Reservoir wi 1 be constructed on Iron Creek, a tribu­ tary of Smith Forka The reservoir will regulate surplus flows of Iron Creek and surplus flows of the Smith Fork of the Gunni­ son River that will be conveyed to the reservoir by the Smith Fork Feeder Canal. Small quantities of reservoir storage water will be released to Iron Creek and diverted by several small existing ditches The remainder will be released to the new Aspen Canal and conveyed by the canal to existing ditches for distribution. Some of the storage releases through the Aspen Canal will replace present direct flow diversions from Smith Fork, thus permitting additional direct flow diversions to be made higher on the stream through existing ditches . Drains will be constructed as needed, Recreational facilities will be provided at Crawford Reservoir.

COSTS

Construction costs Basin Funds--Section 5J/ Crawford Dam and Reservoir $3,275,000 Smith Fork Feeder Canal and Diversion Dam 345,000 Aspen Canal 721,000 Land drains 41,000 Operation and mainte-nance headquarters 9,000 Subtotal $4,391,000 Section 8 Costs Recreational facilities 29,000 Fish and Wildlife 10,000 Subtotal 39,000 Total 4,430,000 .Y Based on August 1958 prices.

Annual operation and maintenance costs Bureau facilities (Section 5) 14,000 Recreation facilities (Section 8) 2,000 Total 16,000 -28- COLORADO RIVER STORAGE PROJECT SMITH FORK PARTICIPATING PROJECT (Continued)

PROJECT FEATURES

Cra wford Dam Located on Iron Creek, one mile south of Crawford, Colorado. Type rolled earth and rock fill Hei ght above streambed (feet) 140 Crest length (feet) 720 Volume (cubic yards) 650,000 Spillway capacity (second-feet) 1/625 Outlet capacity (second- feet) 125

Crawford Reservoir Normal water surface elevation (feet} 6,553 . 0 Ma ximum water surface elevation (feet) 6, 56 1. 1 Initia l storage capacity (acre- feet) Act ive 131 200 Inactive 310 Dead 140 Total 13/650 Surcharge capacity (acre-feet) 3,560

As pen Canal Length (Miles) 6. 6 Initial c apacity (sec ond- feet) 125

Smith Fork Feeder Ca nal Length (mile s) 2. 7 Capacity (second-feet} 60

Smith Fork Diversion Dam Height (feet ) s.s Overflow crest length (feet) so

HYDROLOGY Smith Fork Iron Creek near near Crawford Crawford Jl Colorado Jl Colorado Drainage area (square miles) 42 74 Average annual runoff (acre-feet) Y32, ooo 12,200 Maximum annual runoff (acre-feet) ]/52,600 18,300 Minimum annual runoff (acre-feet) 12,700 7,000 Peak discharge of record (second-feet) 616 375 Minimum discharge of record (second-feet) 3.4 2.6 Inflow design flood for Crawford Reservoir peak (second- feet) 8,530

-29- COLORADO RIVER STORAGE PROJ ECT S MITH FORK PARTICIPATI G PROJECT (Continued)

HYDROLOGY - Continued Maximum 24-hour volume (acre-feet) 5,560 Smith Fork Diversion Dam 100-year peak (second-feet) 2, 000 1/ Period 1942 to 1956, inclusive • .2/ Includes Saddle Mountain ditch diversions which bypass the gage.

REMARKS

The Crawford Water Conservancy District, including the town of Crawford and all irrigable project lands, was formed in May 195 7. Representatives of the district indicated a willingness to enter into a contract with the United States for repayment of project costs up to the ability of the district. Repayment -contract nego­ tiations were completed and a contract was executed on May 10, 1960. A contract for construction of the Crawford Dam was awarded on September 16, 1960.

-3o- UNITED STATES DEPARTMENT Of THE INTERIOR BUREAU OF RECLAMATION REGI ON 4 SMITH FORK PROJECT COLORADO

SCI> I.E Olf MILt5 DEC. 19~4

EXPLANATION '-"101 Pro)lcf Ftolurl•

~ PmtnMy ltriQall

=~r~, re«l••

- ··-----'-"'"" 517-400- 11 COLORADO RIVER STORAGE PROJECT HA MMOND PARTIC IPATI G PROJECT

LOCATION: Northwestern ew Mexico, across he Sa n Juan River and south of Blanco, Bloomfield, and Farmington

AUTHORIZED: Authorized as a participating project with the Colorado River Storage Project by the Act of April 11 , 1956 (70 Stat. 105).

PIAN:

A full irrigation supply will be provided from the San Juan River for 3 , 900 acres of land . Most of the supply will be obtained from direct diversions of natural streamflow but when necessary natural flows will be supple mented by storage releases from the Navajo Res ­ ervoir being constructed on the San Juan River as part of the Colo­ rado River Storage Project. Water will be diverted from the river by the Hammond Diversion Dam and turned into the 29-mile long Main Canal. At a point 6. 3 miles below the head of the canal the water will be divided for distribution at three levels . Part of the water will drop through a hydraulic turbine to a continuation of the Main Canal; part will be lifted to the East and West Highline Laterals by a pump driven by the turbine; and the remainder will be diverted by gravity flow into the Gravity Extension Lateral. Smaller gravity diversions will be made from the Main Canal by five minor unnamed laterals. A project headquarters will be constructed near the pump­ ing plant. Land drains will be provided as needed. Irriga tion and upland game and waterfowl will benefit from the project.

COSTS:

Construction Costsll Hammond Diversion Dam Section S (Basin Fund) $ 451,000 11 Hammond Pumping Plant 369, 000 Main Canal II 2, 106, 000 Laterals 11 204 , 000 Drains 11 90,000 Permanent Operating Facilities " 38,000

O&M Housing II 22J 000 Subtotal 3,280,000 Fish & Wildlife Facilities Section 8 funds 10, 000 Total $3,290,000 y Section 5 (Basin Fund) costs are estimated at September 19 57 prices and include $7, 697 expended from nonreimbursable Colorado River Development Fund.

-32- COLORADO RIVER STORAGE PROJECT

HA r u: OND PARTICIPATI G PROJECT (Continued}

PROJECT '\."! ORKS :

Ha mmond Diversion Darn Located 2 miles upstream from Blanco, New , -exico Type Rock-fill Overflow 'V eir C a pa city of Headworks ( cfs) 9 0

! ajar C a nals and Laterals Initial Area Length Capacity Served (miles) (cfs) Acre s 1ain Canal 29 .0 90 2,750 East Highline Lateral 2 .7 10 380 W est Highline Lateral 3. 4 15 420 Gravity Extension Lateral ~ 10 350 Total 39 .0 3,900 · Pumping Plant Pumps Type Vertical Centrifuga l Number 2 Lift {feet) 53 Combined C apacity (cfs) 22 Drive Units Type Hydraulic Turbine Number 2 Drop (feet) 32

HYDROLOGY:

Drainage Area At Hammond Diversion Dam Site (Sq. r..ri.) 3,480 At Gaging Station near Blanco (Sq. N~ i.) 3,500

Annual Runoff at Blanco Gage 987,400 Average acre-feet (1928-55) 2,551,000 ~ r. ax. acre-feet (1941) 326,000 ~l in. acre-feet (1951)

RE WlARKS: The Hammond w ater Conservancy District was organized in April 1958 as a general administrative and contracting agency for the project and shortly there­ after commenced negotiations with the Bureau of Reclamation on a draft of a repaYment contract. The Hammond Water Conservancy District signed the repay- ment contract on October 20, 1959, to repaY a total of $450,000. The project has the active support of landowners in the area. The contracts for constructton of the f1r 1x mJ,les of the Main Canal was awarded June 29, 1960. HAMMOND 0/V. DAM

CANAL EXPLANATION l'oleMIOI ProjtCI FtOiurta

UNIT 0 STATf 0 P A RT M NT or llll INT RIOR I!~ lon4t to rect"­ llUOEAU OF R(CLAMAT IO N I ""lfOttcf ...... REGIO N 4 _. __ .J CoftOI HAMMOND PROJECT N W M XICO 0 SC II I OF ... Il[ S 0 C. I M

.. aa--a.CIII- l -4 3- 400-8 COLORADO RIVER STORAGE PROJECT

SEEDSKADEE PARTICIPATING PROJECT

LOCATION: Southwestern iyoming along Green River about 14 miles north of Green River, /yarning, and 35 miles east of Kemmerer, Nyo­ ming, Upper Colorado River Basin .

AUTHORIZED: Authorized as a participating project with the Colorado River Storage project by the act of April 11, 195 6, (70 Stat. 1 OS). Special legislation provided in act of August 28, 1958, (72 Stat . 963) . PLAN Fontenelle Reservoir on Green River will regulate the river runoff for irrigation of 58,775 acres of land in farm units and community pasture and will provide water for the Seedskadee National Wild- life Refuge. Regulated releases from Fontenelle Reservoir will be distributed for irrigation through three major canals--the fest Side Canal extending from the west abutment of Fontenelle Dam, the Big Sandy Canal extending from the dam's east abutment, and the East Side Canal branching from the Big Sandy Canal. Two hydraulically driven pumps at drops in or from the 'Vest Side Canal will lift irrigation water to project lands above the canal. Thirty­ five laterals with sublaterals will branch from the three major canals to distribute water to project lands. Land drains will be provided as needed and some sections of canals and laterafs will be lined to prevent seepage. In addition, initial community pasture develop­ ment work will be accomplished and some technical assistance provided for the settlers. The Seedskadee National Wildlife Refuge, covering approximately 18,000 acres, will be located along both sides of Green River in the center of the irrigable area. Its water supply will consist of return flow from irrigation of project lands, direct flow from Green River, and storage releases from Fontenelle Reservoir. Fish screens will be installed at the canal outlets from Fontenelle Reservoir, and toxicant treatments will be provided to control the rough fish populations. Basic Federal recreational facilities will be constructed at Fontenelle Reservoir.

-35- COLORADO RIVER STORAGE PROJECT

SEEDSKADEE PARTICIPATI G PROJECT (Continued) COSTS

Construction Costs 1/ Fontenelle Dam a nd Reservoir (Sec. 5 - Basin Fund) $ 11,828,000 Upper Nest Side Pumping P an 11 11 1, 01 2,000

Lower v ·est Side Pumping Pant II II 917, 000

West Side Canal II II 7,216,000 11 East Side Canal II 907,000 11 Big Sandy Canal " 2,626 1 000

'.:lest Side Laterals II n 4,664, 000 11 East Side Laterals II 533,000 11 Big Sandy Latera s II 1 1 682,000 11 11 Drains 4 1 368,000 11 Genera.l property 2/ II 961,000 Recreational development (Sec. 8 funds} 154,300 Fish and wildlife development 11 11 1, 202, 000 Transitional development 3/ (Sec. 5 - Basin fund) 450,000 ------~------T~o~t~a~l______38,520,300 l/ Based on January 1959 prices. Includes $411,000 expended for investigations from nonreimbursable Colorado River Development Fund. Y Includes cost of community pasture development. Y Includes cost of settler assistance.

_Annual Operation, !aintenance, and Replacement Costs (Estimated on basis of 195 6- 58 prices.) $ 169,030 Bureau constructed facilities National Park Service constructed facilities 11,000 Bureau of Sports Fisheries & ildlife constructed 159,000 facilities $ 339,030 Total

PROTECT FEATURES

Fontenelle Dam 24 miles downstream from La Barge, Wyo. Located on Green River, Rolled earth and gravel fill Type 116 Height above ground (ft) 4,820 Crest length (ft) 4,156,000 Volume of embankment (cu. yds .) 50,000 Spillway capacity (cfs) Outlet capacity (cfs) West Side Canal outlet (at res. elev. 6, 484. S) 78Q East Side Canal outlet (at res. elev. 6, 488) 530 River outlet (at res. elev. 6, 484 .S) 2,270

-6- COLORADO RIVER STORAGE PROJECT

SEEDSKADEE PARTICIPATI G PROJECT (Continued) PROJECT FEATURES (cont'd)

Fontenelle Reservoir Elevation at normal water surface (ft) 6,498 Active storage capacity (acre-feet) 90,000 Inactive storage capacity (acre-feet) 195 , 000 Total storage capac1ty (acre- feet) 285,000 Reservoir surcharge capacity above normal water surface elevatio (acre- feet) 14 ,620 Active sto age capacity for irrigation (acre-feet) 85,000 Active storage capac'ty for wildlife refuge (acre-feet) 5,000

Upper d est Side Pumping Plant Pumps Type Horizontal centrifugal Number 2 Lift (ft) 120 Combined capacity (cfs) 80 Drive units Hydraulic turbine Type Number 2 Drop (ft) 27

Lower West Side Pumping Plant Pumps Horizontal centrifugal Type 2 Number 88 Lift {ft) Combined capacity (cfs) 120 Drive units Hydraulic turbine Type Number Drop (ft) Initial Area Canals Length capacity served (miles) (cfs) (acres) 780 33,856 West Side 43.0 14.7 220 10,404 East Side 530 14,515 Big Sandy 44.3 Total 102,0 58,775

-37- COLORADO RIVER STORAGE PROJECT SEEDSKADEE PARTICIPATI G PROJECT (Continued)

PROJECT FEATURES (continued)

Combined Initial length ca pacities Number (miles) (cfs) Laterals 350 to 10 lest Side system 20 110 ~o 70 to 10 East Side system 7 20 . 1 26 .5 110 to 10 Big Sandy system 8 Total 35 156.6

Drains 119 Open subsurface drains (mi .) 53 Closed subsurface drains (mi.) 47 Surface drains (mi . ) Total 219

HYDROLOGY

Green River at Fontenelle Dam site 4,200 Drainage area (sq mi) 1, 063,900 Average annual runoff-- 1931 -55 (acre-feet) 1, 831, 000 Maximum annual runoff -- 1951 (acre-feet) 337,000 l'.fo inimurn annual runoff -- 1934 (acre-feet) 938,000 Inflow design flood, volume 20 days {acre-feet) 54,500 Inflow design flood, peak discharge (cfs)

REMARKS A conservancy district will be organized as the project contra~ing organization but such a district will not be formed until 25 percent of the project lands have been settled. Due to the recent discovery of trona deposits under certain areas of the project lands, it became necessary to make a reevaluation of the project itself. This reevalu- ation is now under way.

-38- SEE S EE P~ JEC- ~,.. .. - ...... ~: 2

.._ _ ,.., ·" DAM ---~ --- f FO TE E LE ·-

; ; ~~;. ~' -_,.,. .. /~ I UPPER WEST SIDE/ PUMP I G PLA

~:;: c-;r- ,, -._/

EGE D

!-·-;--

1.> I EO S • £5 f t'( !:R·OR FOR DETAILS SEE TEXT OF RECLA ATIO REGIO 4 SEEDSKADEE PROJECT YOMING JAHUAR 1960

. ( _,. - --~• .... COLORADO RIVER STORAGE PROJECT

FLORJDA PARTICIPAT fNG PROJECT

LOCATION: I Near urango, La Plata County Southwest Colorado 1 in San Juan Basin of Upper Colorado River Basin.

AUTHORIZED: As a participating project with the Colorado River Storage project by Act of April 11, 195 6 (70 Stat. 1 OS) •

PLAN:

Lemon Reservoir on Florida River will regulate the flow of the river

for irrigation of 19, 450 acres of land, including 5 1 7 30 acres not previously irrigated and 13, 720 acres in need of supplemental water . Regulated releases will be made from the reservoir to the Florida River . A minor part of the released water will be diverted by numerous sma ll ditches that now serve lands in the narrow 25 - mile long river valley below the reservoir. A major part of the released w a ter will be diverted through the existing Florida Canal a nd the Florida Farmers Ditch to lands on Florida ~ esa . The diversion dam for the Florida Farmer s Ditch will be replaced and the upper 4 . 9 miles of the ditch above its intersection with the Florida Ca na l will be e nlarged . Below the intersection the Florida Canal will be enlarged for a dista nce of 1 .8 miles and beyond this enlarge me nt a new lateral syst em will be provided to serve about 2, 210 a cres of land. Except for this new lateral system , existing laterals will distribute all project wat er with minor rehabilitations a nd extens ions being made to serve about 3, 52 0 acres in scattered tracts on Florida i'.r. esa. A fish screen will be installed near the head of the Florida Farmers Ditch. No project land drains will be required . Project irrigators are willing to correct inefficient irrigation practices under prior water rights to conserve water for project development. All project lands are privately owned except 785 acres of full irriga- tion service land that is in Indian ownership or allotment s.

Two recreational areas will be developed near the Lemon Reservoir. The reservoir will also provide flood control benefits, will improve conditions for fish, and will increase recreational use of the nearby San Juan National Forest • .cosrs

Construction costs Basin Fund - Section 5 (April 1959 prices) Lemon Dam and Reservoir $ 9,557 , 000 Florida Farmers Ditch Diversion Dam 200,000 Florida Farmers Ditch enlargement 45Q,OOO

- 40- COLORADO RIVER STORAGE PROJECT FLORIDA PARTICIPATING PROJECT {Continued)

COSTS (Continued) Florida Canal enlargement $ 200,000 Laterals 310,000 Rehabilitation and extension of existing ditches 100, 00 0 General property 53,000 Tota l 10 ,870, 000 Section 8 Recreation facilities 55,100 Fish and Vildlife facilities 10,000 Tota l 65 1100 Grand total 10 , 935,100 Annual Ol\ll&R Bureau fa cilities (1956- 1958 prices) $ 23,700 National Park Service facilities (recreation) 6,000 Total 29,700

PROJECT FEATURES

Lemon Dam Located on Florida River 14 airline miles northeast of Durango, Colo . Type rolled earth and rock fill Height above streambed (feet) 225 Cr,est length (feet) 1, 320 Volume {cu. yds .) 3, 245,500 Spillway capacity (cfs) 8, 300 Outlet capacity (cfs) At water surface elevation 8, 035 580 At water surface elevation 8,160. 7 900

Lemon Reservoir 8,148 Normal water surface elevation (feet) 8,160. 7 I\t;" aximum water surface elevation (feet) Initial storage capacity (acre-feet) 39,000 Active 900 Inactive 400 Dead 40,300 Total 8,120 Surcharge capacity (acre-feet)

-41- COLORADO RIVER STORAGE PROJECT FLORIDA PARTICIPATING PROJECT (Continued)

PROJECT FEATURES (continued)

Florida Farmers Ditch enlargement Length (miles) 4 .9 Initial capacity (cfs) 185

Florida Farmers Ditch Diversion Dam Height (feet) 6 .75 Overflow crest length (feet) 60

Florida Canal enlargement Length (miles) 1 .8 Capacity (cfs) 150

Laterals (miles) 14.1

Rehabilitation and extension of existing ditches (miles) 23

HYDROLOGY Florida River at Lemon Damsite Drainage area (square miles) 67.6 Estimated virgin runoff, 1928-56 (acre-feet) 64,340 Average 143,870 Maximum, 1941 25,170 I\ inirnum, 1934 1,880 Peak discharge of record (cfs) 6 IV:i inirnum discharge of record (cfs) Inflow design flood for Lemon Reservoir 13,300 Peak (cfs) 1aximum 48-hour volume (acre-feet) 26,800 Florida River at Florida Farmers Ditch Diversion Dam 108 Drainage area (square miles) 3,100 100-year peak flow (cfs)

REMARKS The Florida Water Conservancy District was formed July 1948, and will be the contracting and administrative agency for the project. The proposed repayment contract has been reviewed by the Board of Directors of the District and was approved as to form by the Sec­ retary of the Interior on September 26, 1960. The District is now proceeding with arr~ngements for an election to authorize the Board of Directors tD execute a r yp)ent contract with the United States. Execution 'of "flu!-contract by the Florida Water Cons-.vancy District is expected 1n December 1960. EXPLANATION Potential Pro ct Feet H

~'777'7T>~. P ese _It irri901ed lond o rece1ve prOJ IC 'ofll ar .., lands lo r! cei e proJect watt

--~, Conal ~ Re se rvoir

u. £ SAlES OEPART WEHT OF' THE IIITEA IOR euRU U OF' REC AMATIOH REGION-4 FLORIDA PROJECT COLORADO o I J SCALf Of IIIUS O£C. ~·

--~ID COLORADO RIVER STORAGE PROJECT

CENTRAL UTAH PARTICIPATI G PROJECT

Location and description: The Central Utah project, Initial Phase, will be constructed in the Bonneville Ba sin · n east-central Utah and in the Uinta River Basin, a tributary of the Colorado in northeastern Utah. This multiple­ purpose project will provide irrigation water to about 28,540 acres of new land, a supplementa.l supply for about 132, 000 acres, and furnish about 49,000 acre-feet of municipal water . Principal features of the project are Straw berry aqueduct, Strawberry reservoir enlargement, powerplants with combined installed capacity of 61 , 000 kilowatts, and other regulating reservoirs, aqueducts, canals , and distribution systems. The initial phase of this comprehensive development will also provide flood control, recre&­ tion and forest resource development . The Vernal unit is now under construction.

Irrigated Acreage New land 28,540 Supplemental 131, 840 Total 1601380

Principal Agricultural Production

Alfalfa, grain, fruit, vegetables, sugar beets, tomatoes - da.(.ry cowp, beef cattle and sheep.

W ater Supply

Average annual increase in supply. {Acre-feet) Uinta Bonneville Purpose Basin Basin Total Irrigation Direct flow none Return flow and salvage 31,500 Storage yield 97,500 Subtotal 46,200* 129,000 175,000 !Viunicipal and Industrial Direct flow none Storage 44L300 Subtotal 4,500* 44,300 48,800 Project Summary Direct flow none Return flow and salvage 31,500 Storage yield 141,800 173,300 224,000 Total 50,700*

Stream depletion (Colo. River) 471600 141,800 189',400

*Water supplied by direct flow and storage· -44- COLORADO RlVER STORAGE PROJECT CENTRAL U1'AH PART ICIPATI G PROJECT (Continued)

Project VJork s

The principal project features wou d include construction of the 3 6 .S­ mile long Strawberry aqueduct along the south slope of the Ui nta 1ountains i ntercepting Uinta Basin streams as far east as Rock Creek 1 enlargement of the Strawberry Re servoir through construction of the Soldier Creek Dam , an enlargement of the Strawberry Reservoir tunnel 1 four powerplants with a c ombined ge nerating capacity of 611000 kw 1 numerou s reservoirs including five with capacities over 30 1000 acre- feet: ! !.v . Starvation Reservoir 160, 000 acre-feet total capacity Upper Stillwater Reservoir 31 1500 acre-feet total capacity Strawberry Reservoir 1 1 37 01000 acre-feet tota l capacity Stanaker Reservoir 371000 acre-feet tota l capacity Bates Reservoir 65 I 000 acre- feet total capacity

Aqueducts (including the 28 . 4 mile long asatch) 1 and canals and distri ­ bution systems as neces sary to deliver and utilize the increased water s upply. Drainage would be provided when necessary .

Construction Cost and Repayment- Initial Phase

Estimated cost $ 231 , 044 , 000 Reimbursable cost allocated to: Irrigation $1271354,000 Power 46, 6991000 Municipal and industrial water 45,"500,000 Ultimate development 5,500 , 000 Total 2251053,000 Nonreimbursabl,e cost allocated to: Flood control 3,113,000 2,830,000 Recreation Forest resource development 48, 000 5,991,000 Total Repayment of reimbursable costs by: Irrigation costs From water users 15,191,000 From Central Utah project power revenue 27 , 838 , 000 .!/ From Colorado {liver Storage project power revenues 84,325,0001,1 Total 127,354,000 Power costs from proJect 46,699,000 power revenues Municipal & Ind. water costs by 45,500,000 users 219,553,000 Total RepaYJD~Af- COLORADO RIVER STORAGE PROJECT

CENTRAL UTAH PARTICIPATING PROJECT (Continued)

Annual O&l\f &R Costs

Irrigation 253,930 Power 445,900 f\/ unicipal and industrial water 691 160 Total 7 681 990

Benefit-Cost Ratio 1 .23 to 1

.!/ Available from net power revenues from Central Utah Proj ect powerplants over a 17-year period fo llowing payment of CUP power costs but prior to the end of the SO-year repayment period on the last irrigation block.

Y A one mill tax under the Utah ater Conservancy Act c ould appreciably reduce this amount.

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El'V ERY COUNTY PARTICIPATING PROJECT, UTAH

Loca tion and description: The Emery County project is located in the Upper Colorado River Basin on the eastern slope of the Vasatch r. ountains in the vicinit y of Huntington, Castleda e, and Orang evil e in central Utah . This project w ould involve construction of Joes Valley dam and reservoir, a diversion

dam 1 canals, latera ls and drains. It would provide a supplemental water supply for irrigation of 20 , 450 acres now inadequately irrigated and full supply for irriga.tion of 3 ·' 63 0 a cres of new land .

Irrigated Acreage

New land 3,630 Supplemental 20 ,450 Total 24 , 080

Principal Agricultural Production

Alfalfa 1 grain, peaches, vegetables - dairy cows, beef cattle and sheep.

\Tater supply (acre-feet) Average annual increase in direct fl ow diversions 3,900 Average annual increase in storage yield 28,500 32,400 Total 15,500 Stream depletion (average annual)

froJect Works Joes Valley Dam and Reservoir I with a total capacity of 57' 000 ~::~~f;et, a diversion dam the 17- mile Cottonwood Creek-Huntington c .anal Wl ri second-feet init~al capacity and some canal laterals and drams are the P n- c·lpal construction features • '

.Construction Cost and Repayment $ 9,865,500 Estimated cost 9,636,500 Reimbursable cost allocated to irrigation 229,000 Nonreimbursable cost allocated to recreation RepaYment by: 3,715,000 Irrigation water users Power revenues from Colorado 5, 921,500 River Storage project 9,636,500 Total

Arnl:ual O&M&R Costs 21,870 Irrigation 15,110 Recreation 36,980 Total 1.38 to 1 Bei!Aftt-~st ratio I

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UN ITED STATES oEJ>ARTII[IfT tT TIC IN TVI IOR &1111[.\U 01 R£C~MATION REGION • EMERY COUNTY PROJECT UTAH 1 0 I I I • I COLORADO RIVER STORAGE PROJECT

IA BARGE PARTICIPATING PROJECT,

Location and description: The La Barge project is locatedon the Green River in ~outhwestern ''iyoming in the vicinity of the town of La Barge. The project would Involve a canal making direct diversions from the Green River and a system of laterals to provide a full supply of irrigation water for some 8, 000 acres of new land.

Irrigated Acreage

New lands 7,970 acres

Pr'lncipal . Agricultural Production Hay, pasture and small grain - dairy cows and sheep·

Water Supply (acre- feet) 24,300 Average annual increase in direct flow diversions none Average annual increase in storage yield 14,200 Stream depletion (average annual) ftoj ect W orks Construction features would include main diversion and distribution40 ~nal With initial capacity of 17 5 second-feet and extending approximately . miles along west side of Green River' a few short laterals and a few short drams .

.Qoustruction Cost and Repayment $ 1, 673,300 Estimated Cost 1, 673,300 · Reimbursable cost allocated to irrigation none Nonreimbursable allocation Repayment by: 000 Irrigation water users $ 495, Power revenues from Colorado River Storage project L178,JQ9 L673,300 Total 14,700

2.12 to 1 Benefit-Cost Ratio I f

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DEC I ~ lasE f -· d '~£ 01 IS COLORADO RIVER STORAGE PROJECT

LYMAN PARTICIPATI G PROJECT, VYO !ING

Location and description: The Lyman project is located along the Green River in southwestern yarning near the town of yman . The proj ect would involve a dam and reservoir a water collection system, cana s, laterals and drains It 1 would provid e a supplemental water supply for 40,6 0 acres of presently irri­ gated la nd .

Irrigate d Acreage

New lands none 40, 600 acres Supplemental Total 40,600

Principal Agricultural Production

Hay 1 pas t ure and small grain - dairy cow s and beef cattle·

tV ater Supply (acre- feet) 0 Average a nnual increase in direct flow diversion 32 ,500 Average a nnua.l increase in storage yield Stream depletion: - None

.f.roiect Works

Construction features would include the Bridger Dam and Rese~o~ with 1 total of 43, 000 acre-feet capacity, enlargement of the Willow Cree c anne , construction of three canals and some drainage facilities·

.Q.onstruction Cost and Repayment $ 10,564/000 Estimated cost 10/564,000 Reimbursable cost allocated to irrigation none Nonreimbursable allocation RepaYment by: $ 2,255,000 Irrigation water users Power revenues from Colorado 8,309.000 River Storage project 10,564,000 Total 45,900 Annual O&M&R Costs 1.01 to 1 Benefit-Cost Ratio

-52 N

EXPLANATION Potentrol Project fto~

Preunt lrn9G1ed otl ds To r eee e projtctwoter

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UlltfED Sf&T~ D£P&IITM£NT 01 K£ tMT VUOR I URL& U OF RS:\.AII&T 1011 ~EGlON 4 LYMAN PROJECT WYOMING COLORADO RIVER STORAGE PROJECT

SI LT PARTICIPATI G PROJECT, COLORADO

Location and descript'on: he Sit project is loca ed on Rifle Creek in Garfield County in west-central Colorado. It will i vo ve construction of a storage dam and reservo ir, cana ls and latera s o provide a f l water supply for 1, 900 acres of new land and s upplemental water for some 5 1 400 acres of presently irrigated land 0

Irrigated Acreage

1 1 900 acres New lands 5, 400 acres Supplemental 7 300 acres Tota 1

Principal Agricultural Production

Alfalfa grain sugar beets, potatoes - dairY cows 1 beef cattle and sheep. 1 1

ater Supply (acre- feet) 41200 Average annual increase in direct flow diversion 5,900 Average annual increase in storage yield 101100 Total 5,800

Stream depletion (ave 0 annual) froj ect W orks . . . d th Rifle Gap Dam and Reservoir P nnc1pal construction features me 1u e e . . With 10' 000 acre-feet total capacity' a small hydraulic turb~e and ~rrect- connected pump reconstruction of abandoned ditch' reh~bihtation o an eXi 1 1 d drams sting canal and construction of some latera san ·

.Construction Cost and Repayment $ 3,356,000 3,282,400 Estimated cost 73,600 Reimbursable cost allocated to !rrlg~tion d wildlife Nonreimbursable cost allocated to bsh an

Repayment by: $ 1,020,000 Irrigation water users Power revenues from Colorado 2. 262.40J! River Storage project 3,282,400 Total 8,400

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UIIITED STATES I)EPAJITME•T Of THE ••T£J110JI EXPLANATATION ICIJIEAU OfF JI£C:\,.AIIATIO• Patentiat p rOJOCI· FeotwrOI REGION 4 Pneentl · · to , · ' """'" looda SILT PROJECT •c•••• project woter COLORADO .,.,..No• cttatHt • to racoiM • .... , 0 I 5 I --- c...... COLORADO RIVER STORAGE PROJECT ANI AS- LA PLATA PARTICIPATING PROJECT

Irrigated Acreage (Acres) Colorado New .exico Total New lands 4S ,920 1S,060 601980 2S,640 Supplemental lands 20,100 S,S40 Total 66,020 201 600 86,620

Principal agricultural production: Alfalfa, small grains, pasture, and beans. Dairy cows and beef cattle.

W ater Supply (acre-feet) ew 'exico Total delivered to farm headgates: Colorado 42,530 147,830 New lands lOS,300 6,980 37 t 060 Supplemental lands 30,080 49,Sl0 184,990 Total 13S,380 33,420 116,100 Average annual stream depletion 82,680

.froJect W orks Construction features include Teft Dam and Reservoir with 30, 000 acre- feet active capacity; Hay Gulch Dam and Reservoir with SO, 000 acre-feet active capacity; eadows Dam and Reservoir with 12,000 acre-feet active cap­ acity; the 49 .2-mile, 600 second-foot Animas- La Plata diversion canal; 6.3- mile,. 240- to 180-second-foot ·cDermott Canal; 20 .S-mile 540- to 320- secdnd foot Dry S~de Canal; 7 .7-mile, 120- to SO-second -foo~ Red esa Ca~al; 14.6- tnile, 160- to 10-second-foot Ring Cone canal; 12 .6-mile, 150-second-foot MC_eadow s diversion canal· distribution canals; and drains· - onstructton Cost and Repayment' $ 77,383,000 Estimated construction cost 77,383,000 Reimbursable allocation to irrigation None Nonreimbursable allocation Repayment by: $ 14,875,000 Irrigation water users Power revenues from Colorado River 62,508,000 Storage project 77,383,000 Total 210,000 Annual 0& M & R Costs 1.3 to 1 Benefit-Cost Ratio EXPLANA 0 " e .,, ~- cr feet H

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JAN '"~ COLORADO RIVER STORAGE PROJECT

BOSTWICK PARK PARTICIPATI G PROJECT

Irrigated acreage: Acres New land 1,315 Supplemental land 4,293

Total 5, 608

Principal Agricultural Production

Hay and pasture. Beef cattle and sheep.

Irriga tion \11/ater Supply: Acre-feet Increase in a nnual irrigation supply 9,000 3,200 Increase in annual stream depletion

.Project or ks . truction of the potential Development of the project would reqw.re cons hab'l't tion 9' 000 acre-foot Silver Jack Reservoir on Cimarron Creek andre 1 1 a a nd exten sion of the existing Cimarron canal and lateral system •

.Qonstruction Costs and Repayment $ 4,010,000 Estimated construction cost 2,619,000 Reimbursable allocation to irrigation 1, 391,000 Nonreimbursable allocation

Repayment by: 805,000 Irrigation water users Storage project 1,814,000 Power revenues of Colorado River

Total 9,400 A!lnual O&M&R Costs Ztol '"'J')

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DALLAS CREEK PARTICIPATI G PROJECT

Irrigated Acreage Acres New land 15,750 Supplemental land 6,190

Total 21, 94 0

Principal Agric ul ction

and pasture , Beef cattle 1 dairY cows, and sheep. Alfalfa 1 s·nall grains,

Irrigat·IOn l ater Supplyo Acre-feet 62,500 Increase i annual irrigation supply 29,900 Increase annual stream depletion

total Principal co_ struction features would include 3 reservoirs with a for swrag e capacity in excess of 40, 000 acre-feet, a system of canals co_lecting 1ater from se\ eral streams and 2 main water delivery canals.

Construction Cost and Repayment: $ 10,3301000 10 330,000 Estimated c onstruction cost eimburc:able allocation to irrigation None Nonreimbursable allocation 950,000 Repayment by: 9,380,000 1rngat1onT • ' water users Power revenues of Colorado River Storage project 10,330,000 Total 37,800

Annual O& M&R Costs 1 6 to 1 -t-

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-=au:..... "'--11155 COLORADO RIVER srORAGE PROJECT

DOLORES PARTIC IPATI G PROJECT

rrr·Igated Acreage: {Acres) !ontezurna ove Valley Creek Total area area 9,450 26,000 35,450 New lands 0 30 , 550 Supplemental lands 30 ,550 26 , 000 66, 000 Total 40,000

Principal Agncultural . Production: small grains, pasture, and beans. DairY cows and beef cattle. Alfalfa I

'Nater Supply : (Acre-feet) _ontezuma Dove Creek Valley Total area area e annual proj ect supply: 131,620 Averag 31,780 99,840 New lands 0 14l 170 I4Ll70 145,790 Supplemental lands 45,950 99,840 A Total 69,370 verage annual stream depletion

Rroject 328, ~onstructiOJ\ features would include McPhee Dam and Reservoir of foot y0 acre-foot total capacitY on Dolores River; 24 mile, 440-second- 2 4 • ~i1 low Jacket Canal; 4 6 • 2 mile, 330- to 340-seCQnd-foot Nortll Canal; 5 le' 100- to 30-second-foot South Canal; laterals; and drainS •

.Qonstruct. 10° Cost and Repayment: $ 24,633,000 24,633,000 Estimated cost Reimbursable allocation to irrigation None Nonreimbursable allocation 1,533,000 Repayment by: 23,100,000 Irrigation water users Power revenues frOID cowradO River swrage proJect - 24,633,000

Total 109,300

1.1 to 1 I I

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1 ED S &T!S EXPLANATION T ~ oTt DE,.mWI Ol 1£~ alt.l Pete.. titll Preject F.-..rn eui£MI PreH•Hy or,....fel le.. 11£1 4 ,. ,..cenre .,..,act _. DOLORES PRO.IECT .... leaft tD '""... ttrOJKf ..... - COLORADO I UTAH -....-- , ...1 I I I • 9 ~ ReHrweir \a .. I COLORADO RIVER STORAGE PROJECT

FRUITLAND .,! ESA PARTICIPATI G PROJECT

Irrigated Acreage: Acres New land 16,520 Supplemental land 6,930 Total 23,450

Principal Agricu ltural Production:

ure' and small grains . Beef cattle 1 sheep 1 and dairY cows. Hay, pa 5 t

Irrigation w ater Supply: Acre-feet 58,500 28,100

enlargemConstru c t'10n features of the project would consist of a storage reservoir and distr~:t ?f an existing reservoir, and construction of a system of wateJWays on Sapin~r:tlon facilities. The new storage reservoir would be constructed 44, s Creek at the Soap Park site and would have a total capacity of of 2 .a70 :~~:e-feet • A waterway system starting at the reservoir and consisting Sa pine of bench flume and 8 miles of runnel would divert flaws of 5 Creek r~and Curecanti Creeks to Crystal Creek. At a point tower on Crystal the e~sti e water would be rediverted thrOugh the potential enlargement of to sup ng Gould Reservoir feeder canal. The feeder canal would be used Gould ~1 Y the potential Fruitland canal and to convey water for storage In serve eservoir • The Fruitland canal would be 22 miles In Jengtil and would 1ands above the service area of Gould Reservoir·

.Qonstructi--=;::::;0 !!n~C~o§.S!!ts~aJ:!nfldJR!!e~p!!a:!vmm£e!}jntt;..: $27,125,000 25,209,000 Estimated construction cost 11'916·, 000 Reimbursable allocation to frrigatiOn Nonreimbursable allocation 3,655,000 Repayment by: 1).554.000 Inigation water users Power revenues at eolariJdll RlVII' SIIJIIIIJ8 poJact 25,209,000

Total 4&,000 /

-----1 I clo,u ( OOIILO RJ;'S!;RVOIR EN[ A CE :trENT wz .no ~~\~ CRYSTA L CREEl( ~ e> TUN N E L

EXPLANATION PotofltiOI Prolect hotu,..•

P~o ..fltly orroootoO l ofiO. to ,..co,.,. project woter Now lotiO• to ,..c:e••• _...... ,._ prolec:tt•"•' ••••~ C(C.~"J ......

---=I::&!~~:....-~=-~~~~~::=:::::::::::::::u:::,.., TED s TAT 0 PART M NT F T H INT RIOR 8UR AU (I R CI.4\MI\T ION R EGION 4 FRU I TLAND ESA PROJECT COLORADO FRUITL..ANO MESA \ _L ~- OK I.A. JANUARY 1955 MAP ------· 689 - 400 - 1 COLORADO RIVER STORAGE PROJECT

FRYINGPAN- ARKANSAS PROJECT

The Ruedi Dam and Reservoir are proposed as substitutes for the Aspen Dam and Reservoir, potential features of the Fryingpan­ Arkansas Project,. insofar as replacement water and water for future use in western Colo. ado are concerned. In addition to satisfying requirements stemming from operation of the Fryingpan-Arkansas Project and from policy of t e State of Colo ·ado as expressed in the Colorado Water Conservancy District Act, Ruedi Dam and Reservoir would provide additional s orage capacity and water for use in western Colorado.

Description:

The Ruedi Dam and Reservoir will be located on the Fryingpan River, a tributary of the Roaring Fork River which enters the Colorado River at Glenwood Springs, Coloradoo The damsite is about 14 miles east of Basalt, Colorado and about a quarter of a mile below the confluence of Ruedi Creek with the Fryingp an River. The reservoir will be about 4-1/2 miles long with a maximum width of about three­ quarters of a mile.

The dam will be an earthfill structure with crest elevation of 7780 feet m. s .1. Crest leng!h will be 1, 050 feet and heights above streambed and foundation will be 270 feet and 290 feet respectively. A glory-hole type spillway with capacity of 9, 250 cubic feet per second will be provided, together with a tunnel outlet through the right ab\ltment of the dam o The reservoir outlet will be by tunnel through the left abutment and will have a capacity of 1 , 000 cfs. With noimal storage capacity of l 00, 000 acre-feet, the water surface will cover an area of about 1, 000 acres at elevation 77 64 feet m. s .1.

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GRAND iESA PARTICIPATI G PROJECT

Irrigated acreage: Acres New land 11,070 Supplemental land 14,230

Total 25,300

Principal Agricultural Production;

Alfalfa, small grains, pasture, and fruit. Dairy cows, beef cattle, sheep.

Irrigation Wate- Supply: Acre-feet Increase in annual irrigation supply 59,100 Increase in annual stream depletion 26,300

Project Works:

Construction features of the project would consist of two storage reservoirs, a feeder canal, a service canal, a pumping plant, and a system of laterals . The principal storage for the project would be provided on .uddy Creek at the Spring Creek Site which is also planned to provide storage water for the Paonia project. Should the reservoir be constructed initially to a capacity of 18, 000 acre-feet as required for the Paonia project, enlargement to a total capacity of 85,000 acre-feet would be necessary at the time the Grand 1esa project is constructed. At .:..hat time, a 3.5- mile feeder canal would also be constructed from Anthracite Creek to augment natural inflow to the reservoir. Cedaredge Canal would begin at Spring Creek Reservoir and would extend a distance of 67 miles in distributing water to lands of the project. The Redlands .esa pumping plant, to be constructed on the canal near the Leroux Creek crossing, would deliver water to lands above the canal in the Redlands esa area. The potential 4, 000 acre-foot Gorsuch Reservoir, located on Currant Creek 12 miles from the end of Cedaredge Canal/ would regulate flows of the canal as well as Currant Creek .

Construction Costs and Repayment:

Estimated construction cost $ 20,164,000 Reimbursable alloca!fon to irrigation 20,164,000 Nonreimbursable alfocatioo None

Jt~ap~YJDent by: Irrigation water users 30,000 Power revenues of Colorado River Storage project 20,134,000 20,164,000 Total 132,000 Annual O&M&R Costs 1 .8 to 1 Benefit-Cost Ratio -68- PUMP CANAL

S PUMPt•.Jr; PL ~/IJ T

dliJ~ UNITED STATES OEPARTMENT 0 THE INTERIOR OUREAU OF R CI.AMATION REGION 4 PrtiOntl ~ lrrl~oled lond1 to recelvt proJect wo tor G A 0 MESA PROJECT N Iandt to rec:elve COLORADO prglfot worer 0 t -~ (;enol IOALit OP MILit &'Q(;i ft torvolr JANUARY 19~5 ac "'"" ------~~------_J COLORADO RIVER STORAGE PROJECT

JUNIPER U IT PARTICIPATI G PROJECT

. The plan of development for the Juniper unit as tentatively appraised I~volves utilization of the Juniper Dam and Reservoir sites on the Yampa River for a single- purpose irrigation development. The appraisal, how­ ever' has been made primarily as a base for future studies of hydroelectric power potentialities at the Juniper and Cross .ountain Dam sites on the Yampa River. As additional studies are made, the plan will no doubt be revised to include power production as a major project purpose·

The Juniper unit as tentatively planned would serve 101,280 acres of full set;Vice land, including 32,920 acres in Colorado and 68,3 60 acres in Utah, and would incidentally aid in fish and wildlife conser­ vation, recreational development, and sediment control. The lands that would be served lie along the Yampa River in the vicinity of avbell, Colorado' and in the Deadman Bench area between the Yampa and White Rivers. The unit lands near aybell are situated on the north and south sides of the Yampa River west of Juniper Canyon and within the basin of the Cross ountain Reservoir a potential but as yet unauthorized unit of the Colorado River Storage ~roject. The Deadman Bench area includes lands situated a long the northern slopes of the White River Basin in Colorado, on Deadman Bench proper in Utah, and between Deadman Bench and the White and Green Rivers. r~ "'' > ••

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NAVAJO INDIAN IRRIGATION PARTICIPATING PROJECT NEW IEXICO

Irrigated acreage: Acres New land - -total 110 t 630 Gravity 83/449 Pump 27,181

Principal Agricultural Production

Alfalfa, grains, pastures 1 beans, some fruit and vegestables. Dairy cows, sheep.

W at er Supply (acre-feet) 508/130 Average annual increase in storage and direct flow diversions 252/000 Stream depletion (average annual)

ProJect Works: fr Construction features would include a !53-mile main canal to divert om the Nayajo Dam and Reservoir on the San Juan River, about 270 feet aPeak b ove 5 trearn bed at dam, pumps at the Gallegos, Newcomb and Bennett Pumping plant to lift water to about 25 percent of project lands, canals e>qending beyond the pumP lifts, distribution laterals, and drains.

Construction Costs: $ 135,330,300 Estimated construction cost (JanuatY 1958) 481,000 Annual O&M&R Costs: 1 .44 to 1 Benefit-Cost Ratio: 0 ,......

Nlt.VAJO INDIAN LOCATION NE ll. OOUNOA!IY

AVA JO RESERVOIR

SHIPROCK MAIN GRAVITY CANAL---•

PAJARITO PUMPING PLAN A I N GRAVITY CANAL

I UNIT 0 TAT EXPLANATION PLANT 0 PAATM ENT 0 1 t-i INTfRIOR P ote ~~tt ol ProJKI F'to turea I BUR AU OF R CLAMAI ION New 1Cll'd t to rtct••• REGION 4 pt'O jt I w ote~ NAVAJO PROJECT NEW MEXICO 0

$CAL( OF M t L[

JAN UARY 1 9~5

809 - 400 ·I __._

------=... -

---- -=--.-,... --- . ---.------.. - COLORADO RIVER STORAGE PROJECT

SAN JUA -CHA .A PARTICIPATI G PROJECT (I TIAL S1'AGE) Colorado and ew texico

Irrigated Acreage: Acres New land one Supplemental _and 120,940

Water Supply : (Acre-feet)

Allocation of diverted San Juan River water 52,700 Irrigation Tributary Units 30,100 Middle Rio Grande Conservancy District 22, 600 57, 300 Municipal and in ustrial water

Stream daoletio (average annual 1101000 diversio~ from San Juan River Basin)

.!:re jec t W orks : . . lude three diversion dams Pnnc1pal construct ion features would inc . duit syste111 to 1 1c2 the hepdwaters of San Juan River' a 3_2 ,S-mis~ct';," Rio Grande BasiJI, ollect and d ivert Nat er from San Juan ruver Ba in t regulate San Juan a 400,000 acre-foot reservoir in Rio Grande Bas b~Utatton of distribution River diversions some additional reservoirs, reha 15 and laterals in systems, and so~e relocation and extension of cana eXisting systems on Rio Grande tributaries·

Qonstruction Cost and Repayment: $ 861000 1000 1959 Estimated construction cost (January, ) Reimbursable allocation to: Irrigation $ 53,400, ooo . Irrigated lands 29 , 2oo,ooo Municipal & industrial water 3, 00o,ooo Deferred costs ss,&OO,OOO Total reimbursable allocation& - 400.00! 11 Nonreinibursable al).oc8t1D 86,ooo,000 1,26 to 1 I I /" ()~ / ... /- , \ 1 .> ,/ \ ... ,.. ... - .. ~ ... I t ..:.- ,_, -., r./ --- ~ __., r- \..,­ \./""- ( '""' ~ _ LOBO RES--l ~TESORO \ . ·o roo ) ( RES CONDUIT ,.,.r=H ANCO I ) ~..__...~,r-~) 8 1 l -· - · --"'~'STEM ~ --"; RES. J ••+-- o -~--<- 1COE OB_QQ._MEX I CO~---,··-r-··' I - 1"' } RED RIVER· HERON NO. 4 EAG LE NES T REs . f-~ DIVERS ION \ I ) r-1 / /,-J J r--./

LOCAT ION WAP

~ I E sa ES CE;JAR•V£ • cr ... ( I • ER R e.~~>E.t. r "(C Alii C REG ION S SAN JUAN·CHAMA PROJECT COLORADO ·NEW MEXICO lias e f ' J' K • o.L 111 • • d COLORADO RIVER STORAGE PROJECT

SAN II GUEL PARTICIPATING PROJECT

Irrigated Acreage: Acres New land .331000 Supplemental land 10,000 Total 43,000

Irrigation ater Supply: Acre-feet 58,600 Annual direct flow diversions 35,700 Annual storage supply 94,300 Total project supply

Construction Costs and Repayment: $ 43,050,000 Construction costs 43,050,000 Allocable to irrigation 9,750,000 Repayable by water users in 50 years ver Account Required from Upper Colora do Ri 33,300,000 or some other source 80,000 Annual 0& M& R Costs: 1 .15 to 1 ]..en·efit-Cost Ratio: ··-··- COLORADO RIVER STORAGE PROJECT

SAVERY-POT HOOK PARTICIPATING PROJECT

Irrigated Acreage: (Acres) yoming Colorado Total Full irrigation service land 61180 151740 211920 Supplemental irrigation service 13,345 land 9,975 31370 351265 Total 161 155 19,110

Pr'Incipal . Agricultural Production:

Alia lfa, sma 11 grains and pasture, dairY cattle and sheep·

W ater Supply: Acre-feet 631 600 Average annual increase in irrigation supply 38,100 Average annual increase in stream depletion

Construction features include the 65,000 acre-foot Pot Hook Reservoir' l ~' 600 acre-foot Savery Reservoir, Dolan Mesa diversion dam and 19.2- mile canal, 58 .2-mile Pot Hook Canal, 15.7-mile extension 5 7 of ~ estside gana 1• Willow Creek Lateral, 21 • 6-mile Two Bar Canal, • -mlle LILY anal, and 7 • 7 -mile Deerlodge Canal.

Construction Costs and Repayment: $ 15,351,000 Estimated cost: 14,888,000 Reimbursable allocation to irrigation 463,000 Nonreimbursable allocation 2,155,000 Repayment by: Irrigation water users 5 torage Net power revenues from Colorado River 12,733,000 project 14,888,000

Total 87,300

Annual O&M&R Costs: 1.47 to 1

.Benefit-Cost Ratio: 1a N• .:!;fl N--E -. ,· ,, 'l-en ...... I D 0 N

0 K LA. LOCATION MAP

EXPLANATION htMfl• "''IK' 'toturH UNIT 0 STATES OEPARTM NT OF THE INT RIOR ,....., .,.,...... I.e... BUREAU OF RECLAM ATION Te ' ..,-.tKI ..,.. .._L_..r.,...... REGION 4 ...... eter SAVERY- POT HOOK PROJECT ,.'- .,. c:-.1 COLORADO- WYOMING e~ 0 • • ...... 11 - 400- 3 COLORADO RIVER STORAGE PROJECT

£81' DIVIDE PARTICIPATING PROJECT

Irrigated Acreage: Acres New land 40 , 500 Supplemental land 25,110

Total

Principal Ag:dcultural Production:

Alfalfa, sm 1 gr ins, and pasture . Beef cattle, sheep, and dairy cows.

Irrigation Wate Supply: Acre-feet Increase ia cnnual irrigation supply 180,000 Increase i _ annual stream depletion 88,100

Project Vt/orks:

Princ:pal w.xks would include Osgood Reservoir on Crystal River with total capacity of 99,500 acre-feet, Redstone conduit, Four-Mile Canal, West Divide tunnel 15 ,7 miles long, Horsethief Canal, Garfield Canal, Kendig Reservoir on VI/est Divide Creek w ith total capacity of 1 ~, 000 acre-feet, ar-c '/e~t M amm Reservoir on West Mamm Creek w ith total cape: city of 7 : '10 0 a cre-feet , Latera!s and dra.ins would be included as neces sary. AbJ11t , years ;ould be required for constructing the project.

Construction Costs and Repayment:

Estimated construction cost $ 79,675,600 Re.'.:nbursable allocati on to irrigation 79,675,600 Ne- reimbursable allocation None

Repayrner.t by: Irri•jation water users 5,960,000 Pov.-er revenues of Colorado River ~orage project 73,?15,600

Total 79,675,600

Annual 0& M&R Costs 96,700 1 to 1 Benefit-Cost Ratio:

-81- OSGOOD RESERVOIR

HORSETHIEF' CANAL

UNITEO STATES OEPARTilENT Of THE INTERIOR 8UIIEAU OF RECUMATIOII REGION 4 WEST IVIOE PROJECT COLORADO 1011 14$ ··--- E** &a,

JAN. 1 9~~

--~------~·~· :6-400-8 ______j COLORADO RIVER STORAGE PROJECT

YELLOW JACKET PARTICIPATING PROJECT

The Yellow Jacket unit would provide irrigation water for 41, 140 acres of land, including 3 6,900 acres of full service land and 4, 240 acres of supplemental service land . The lands are situ­ ated in three rather distinct areas in the White and Yampa River Basins.

The Yellow Jacket area located north and east of .eeker, Colorado1 includes the lands of the White River Basin drained by Little Beaver, Coal, and Curtis Creeks. The Josephine Basin area located south of Meeker and the White River, but also in the White River drainage, includes lands in Josephine Basin and lands situated above and beyond the existing Miller ditch that diverts from the White River. The Axial Basin area located in the Yampa River drainage includes lands in Axial Basin above the water surface elevation of the potential Juniper Reservoir.

Besides providing irrigation water, the Yellow Jacket unit would incidentally benefit fish and wildlife conservation, recreation, and sediment control. In addition, if sites on the Yampa River should be developed for hydroelectric power production, excess diversions to the Yampa drainage and return flow from the Axial Basin area could be utilized for the generation of electrical energy. SN

T 4 AXIAL CANAL

I \ ~ ·. \-"•_./ } T2 N (

TIN

TIS

! '') / \ . ;\ ·~~- EXPLANATION ( ·, / / Presently lrrivoted LoneS UN ITED STATU RJ OE~AitTIII[IIT OJ' TME I NTIItiOit IUitEAU OJ' JtECLAMATfON C·i·;·!·:i lrriQOble Land Notes· Tropoer s ,_oke Reservoir REGION 4 Si e, toc: o ed • T.l S., _.,.,,. Potential Canal R.88W.,is not sl!o•n YAMPA -WHITE PROJECT Y£'-LOW .JACKET UNIT tilflli1# Potential Re ..rvoir C:OLOitA 0 MAP NO. 4151·400•8 8atilll Stotlon