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<br />
<br />SUMMARY SHEEr
<br />
<br />Upper Gunnison Project, Colorado
<br />
<br />LOCATION
<br />
<br />West-central Colorado alop.g Gunnison River and its tributaries above Blue I-Esa Reservoir.
<br />
<br />PLANS INVESTIGATED
<br />
<br />Investigations were made of various project .units for water resources development, including two
<br />alternative plans for the Ohio Creek Unit and plans for the East River, Tomich! Creek, and Coche-
<br />tapa Creek Units. Statistical data are shown below :for all the units except the Cochetopa. In-
<br />vestigations of this unit were dropped when severe geological problems were found at available
<br />reservoir sites.
<br />
<br />WATER SUPPLY
<br />
<br />Increase in supplies (average annual
<br />acre-feet)
<br />Municipal and domestic use
<br />Irrigation
<br />Total
<br />Effects on Colorado River at Lake ~ad
<br />Stream depletion (average annual
<br />acre-feet)
<br />Increase in salinity (milligrams
<br />per 11 ter)
<br />
<br />IRRIGATION SERVICE AREA (acres)
<br />
<br />Full service land
<br />Supplemental service land
<br />Total
<br />
<br />ESTIMATED COSTS
<br />
<br />Construction costs (January 1973 prices)
<br />Annual operation, maintenance, and re-
<br />placement costs (1970-72 prices)
<br />
<br />BENEFrr-ooST ANALYSIS (loo-year period)
<br />
<br />Average annual benefits
<br />Municipal and domestic water use
<br />Irrigation
<br />Recreation
<br />Fish
<br />
<br />Subtotal
<br />Less benefits lost from reservoirs
<br />or canals
<br />Total
<br />
<br />Annual eC[uiva1ent costs (5t percent)
<br />
<br />Benefit-cost ratio
<br />
<br />Ohio Creek
<br />Unit
<br />
<br />4,000
<br />4,000
<br />
<br />1,400
<br />
<br />0.2
<br />
<br />$2,385,000
<br />
<br />11,500
<br />
<br />$230,000
<br />
<br />230,000
<br />
<br />230,000
<br />
<br />$149,600
<br />1.54:1
<br />
<br />East River
<br />Unit
<br />
<br />2,000
<br />2,000
<br />
<br />1,000
<br />
<br />0.1
<br />
<br />,$2,712,000
<br />18,500
<br />
<br />$193,400
<br />
<br />52,400
<br />8,200
<br />254,000
<br />
<br />1,400
<br />252,600
<br />
<br />$176,700
<br />
<br />1.43:1
<br />
<br />Alterna-
<br />tiveOhio
<br />Creek Unit
<br />
<br />6,000
<br />..2...2QQ
<br />11,900
<br />
<br />3,800
<br />
<br />0.3
<br />
<br />100
<br />~,070
<br />,170
<br />
<br />$4,587,000
<br />14,000
<br />
<br />$277,900
<br />88,000
<br />
<br />365,900
<br />
<br />100
<br />365,800
<br />
<br />$283,100
<br />
<br />1.29:1
<br />
<br />Tomi chi
<br />Creek Unit
<br />
<br />15,100
<br />15,100
<br />
<br />4,800
<br />
<br />0.4
<br />
<br />1,910
<br />
<br />~
<br />
<br />$15,158,000
<br />36,100
<br />
<br />'$217,900
<br />125,400
<br />12,600
<br />355,900
<br />
<br />1,800
<br />354,100
<br />
<br />$934,500
<br />
<br />0.38:1
<br />
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