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Wyoming Water Development Commission 
Harry C. LaBonde, Jr., PE, Director 
6920 Yellowtail Rd, Cheyenne, WY 82002 
Phone: 307-777-7626 

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 20. PROJECT:Cokeville Tri-Diversion Dam
SPONSOR:Cokeville Watershed Improvement District
LOCATION:Lincoln County
Purpose Chapter Session Account Appropriation Due Date
Level II 8 1995 II $50,000   1996
Level III 59 1996 II $160,000* 1999
*50% grant, 50% loan (4%, 20 years)

The Cokeville Watershed Improvement District has a tri-diversion structure on the Smith's Fork River above the Town of Cokeville. The structure serves to divert irrigation water to three channels, which provides water to approximately 5,000 irrigated acres. In addition, the structure provides some flood control benefits to the town.

The structure is over thirty years old and in need of rehabilitation. In addition, the existing configuration has resulted in considerable trash and gravel problems. Several alternations to the structure have failed to solve the problem. The Level II study provided a hydraulic analysis of the structure, prepared a replacement/rehabilitation plan, and developed conceptual plans and cost estimates for the preferred alternative.

The 1996 legislature approved an appropriation of $160,000 to be used to rehabilitate the diversion structure. The project has been divided into two phases. The first phase is less costly. It is under design at this time and will be constructed in 1997. It is hoped this work will sufficiently address project needs and that the second phase will not be necessary.

No legislative action is required.

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