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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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 24. PROJECT:Crook County Reservoir
SPONSOR:Crook County Irrigation District
LOCATION:Crook County
PROGRAM:New Development
Purpose Chapter Session Account Appropriation Due Date
Level I 82 1998 I $100,000 2000

The sponsor requests that WWDC conduct a study of the rehabilitation or relocation of Driskill No.1 Reservoir. This reservoir is located on state land, with the water right and easement held by Ogden Driskill. The reservoir is currently utilized for irrigation solely by Mr. Driskill, a board member of the irrigation district, but he expressed a willingness to transfer ownership to the irrigation district. He indicated that the reservoir could benefit approximately 1800 acres under the irrigation district on the Belle Fourche River.

The reservoir currently stores 100 acre-feet, but is reportedly permitted at a total of 1000 acre-feet. The outlet works suffered damage 2 years ago, so the emergency spillway was lowered to prevent any further damage until repairs could be made. Mr. Driskill indicated the reservoir is used extensively for recreation, and that an alternate dam site approximately 1/8 mile below the current site would provide a deeper reservoir with additional capacity. The sponsor feels an enlarged reservoir at this location would provide them with improved management flexibility because they could make releases from a source that is much closer to their irrigators. While the sponsor is desirous of repairing the reservoir for irrigation use, they are also interested in providing an improved flatwater recreation site for the region.

In order to prepare for the permitting process required for a reservoir project such as this, it is appropriate to begin at Level I with a review of the alternatives, as well as appropriate hydrologic and geotechnical analyses. This will promote a more efficient permitting process, and will provide the sponsor with preliminary financial and technical feasibility information prior to the necessity of a transfer of ownership of the reservoir.

Preliminary geotechnical work is complete, and hydrologic analyses and other planning and pre-permitting efforts have been completed. No fatal flaws have been identified to date. This study was completed in 1999.

No legislative action is required.

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