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<br />16
<br />
<br />31 Cost allocation______~________ __________________ _____ ______ ____
<br />32 Reimbursable and nonreimbursable allocations____________"________
<br />33 Recreation-fish-wildlife annual O.M. & R. responsibilities_________..._
<br />34 Annual irrigation revenueB_____________________~________________
<br />35 Tangible net annual benefits, Senate Resolution 148_______________
<br />36 Benefit-cost analysis, Senate Resolution 148______________________
<br />37 Summary of cost allocations, Senate Resolution 148________________
<br />38 50-year cost allocation, separable costs-remaining benefits method,
<br />Senate Resolution 148_____ _ ____ _____n ______~ __ ______ __ _ _h__
<br />39 50-year cost. allocation, priority of use method, Senate Resolution
<br />
<br />148________________________________________________________
<br />40 lOO-year cost allocation, priority of use method, Sena.te Resolution
<br />148________________________________________________________
<br />41 50-year c06t allocation, incremental cost method, Senate Resolution
<br />148________________________________________________________
<br />42 lOO-year cost allocation, incremental cost method, Senate Resolution
<br />148________________________________________________________
<br />43 Payout analyses, Senate Resolution 148________~____________~____
<br />44 Allocated annual O.M. & R. costs, Senate Resolution 148_____~____
<br />
<br />1"aC8
<br />82
<br />83
<br />85
<br />87
<br />90
<br />91
<br />93
<br />
<br />94
<br />
<br />95
<br />
<br />96
<br />
<br />97
<br />
<br />97
<br />99
<br />100
<br />
<br />SUMMARY SHEETS
<br />
<br />Narrows Unit, South Platte Division, Colorado, Missouri River Basin Project
<br />
<br />LOCATION
<br />
<br />Northeastern Colorado along the South Platte River. Irrigable lands
<br />are in Morgan, Logan, Washington, and Sedgwick Counties. Narrows
<br />Dam and nearly all of the reservoir area are in Morgan County. A
<br />smaIl portion of the flood control pool extends into Weld County.
<br />
<br />PLAN
<br />
<br />New construction for the unit will consist only of the potential
<br />Narrows Dam and Reservoir to serve the functions of irrigation, flood
<br />control, recreation, fish-wildlife enhancement, and improvement of
<br />water quality. Storage water would be released as necessary from the
<br />reservoir to supplement irrigation within the service area, totaling
<br />166,370 acres, of the Lower South Platte Water Conservancy District.
<br />Supplemental releases will be conveyed downstream in the river channel
<br />to the diversion works of existing irrigation systems. No Federal
<br />construction of irrigation distribution facilities would be involved.
<br />Specific lands and facilities, including the existing Jackson Lake would
<br />be required for recreation and fish and wildlife purposes. Minimum
<br />downstream flows for water quality control and fish requiremente
<br />would be met by reservoir seepage, stream accretions, and return
<br />flows. Future control of Bijou Creek floods could be attained by the
<br />construction of diversion facilities and revised reservoir operating
<br />criteria.
<br />
<br />Coots
<br />
<br />.,
<br />
<br />Feature:
<br />Narrows Dam and Reservoir______________________________
<br />O. & M. housing_____________________________~_____~_____
<br />Permanent operating facilities___ ___________ ___ __ ______ ____
<br />Recreation dev~opDlent____________________~_____________
<br />Fish and wildlife development_____________________________
<br />Jackson Lake rehabilitation (dual recreation and fish-wildlife)_
<br />
<br />Total construction cost_________ _______ __ ____ ___________
<br />
<br />BENEFITS AND COSTS (ANNUAl, lOG-YEAR ANALYSIS)
<br />BENEFITS
<br />
<br />Amount
<br />$57, 000, 000
<br />19,000
<br />91, 000
<br />2, 320, 000
<br />2, 265, 000
<br />125,000
<br />
<br />61, 820, 000
<br />
<br />110m
<br />
<br />Dil'9Ct
<br />
<br />Total
<br />
<br />~~!3~~g~~~~:~~?:::::::::::::::::~::::::::::::::::::::::::::::::::::::::
<br />Recreation l_._._.________.________u____________________n_____..____._._______
<br />Fish and wildlife enhancement 1..-_______._____________________________.____...._
<br />TOt::lI__n_.___n_._.._nn_.~____n__..__nn_hn_n_n____n____n__n.
<br />
<br />$1,410,000
<br />961,000
<br />2790,000
<br />292,700
<br />3,453,700
<br />
<br />$1,631,500
<br />961,000
<br />'''''000
<br />29i100
<br />3,675,200
<br />
<br />1 Benefits provided by cooP9rating agencies.
<br />2 Adjusted for time and rate of occurrence.
<br />
<br />(17)
<br />
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