WSP01574

• File Number: 8220.129.A
• Description: Upper Gunnison Project
• State: CO
• Basin: Gunnison
• Water Division: 4
• Date: 2/28/1973
• Title: Preliminary Summary Sheets - Upper Gunnison Project-Colorado
• Water Supply Pro - Doc Type: Report/Study

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Upper Gunnison PrC"', ';:t (continued)
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L~ Benefit-Cost Analysis ($1,000) (continued)
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East River Unit
Costs
Construction cost . . . . . .
Interest during construction
Total . . .
Average annual cost
OM&R . . . . . .
Share of CRSP costs
Total annual equivalent cost
Benefits
It is estimated that a single purpose alternative for supplying
2,000 acre-feet of domestic water could be supplied from veIls, springs,
or purchase of irrigation rights for a maximum of $20 per acre-foot
annually. This would amount to a total annual benefit of 40
Benefits to irrigation . 12
Benefits to recreation . 52
Benefits to fish . . . . 4
Total annual benefits . 108
Benefit-cost ratio - total benefits ... 0.64:1.0

.

2,480
236
2,716
J.)U
16
3
169

Environmental Involvement

The Upper Gunnison Project is divided into three segments or units for
feasibility study. A Draft Environmental Statement is scheduled to be
completed in May 1973, which will likewise evaluate the project by seg-
ments. Potential environmental problems are listed below by these units.

Ohio Creek Unit

1. Depletion of Colorado River by 3,700 acre-feet will increase
salinity at Hoover Dam by 0.3 mg/l.

2. Plan involves a drop inlet structure to replace a diversion
dam in the original plan, which will reduce esthetic and recreational
losses.

East River Unit

1. Cement Creek Reservoir would inundate a small scenic valley
and a hot spring now used for swimming pool. It would also cause diffi-
cult road relocation.

2. Depletion of Colorado River by 1,400 acre-feet would increase
salinity by 0.1 mg/l at Hoover Dam.

3. Secondary impact on use of water would cause land use changes
in the unit.

4