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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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112.PROJECT:Sidon Bitter Creek Crossing
LEVEL:New Application
SPONSOR:Sidon Irrigation District
LOCATION:Big Horn County
Purpose Chapter Session Account Appropriation Due Date
Level II 74 1993 II $75,000 1995
Level III 206 1995 II $1,000,000 1998

The Level II rehabilitation plan written by Inberg-Miller Engineers, Inc. in 1994 identified several locations on the Sidon Canal needing attention. One of these locations was the Bitter Creek crossing. The replacement structure will be sized to carry 2 cfs per 70 acres for the irrigation district, plus pass a flood event on Bitter Creek. This crossing must be conservatively sized because it is very near the diversion from the Shoshone River and essentially all of the users in the Sidon Irrigation District are below the structure. The structure also serves as a diversion dam for the Sidon Canal diversion from Bitter Creek. If the structure would fail or wash out from a flood on Bitter Creek, the district would not be able to deliver water to its users.

A Level III project was completed under 1995 legislation that rehabilitated the Shoshone River diversion dam and headgate structure and replaced structures at Marchant Wash and Sage Creek with inverted siphons. The appropriation was $1,060,000 and approximately $330,000 reverted to the water development account from that project. The current request is for funding to construct the Bitter Creek crossing.

The WWDC recommends the project be incorporated in the Rehabilitation Program at Level III with an appropriation of $217,000. The financing plan is a 50% grant, $108,500 and a 50% loan, $108,500, for ten years at 6.00% interest.

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