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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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 67. PROJECT:Lake Hattie Outlet Works
LEVEL:New Application
SPONSOR:Pioneer Canal-Lake Hattie Irrigation District
LOCATION:Albany County
Purpose Chapter Session Account Appropriation Due Date
Level III 12 1988 II $360,000 1990

Lake Hattie is located 15 miles southwest of Laramie. Sediment carried by wind and wave action are deposited in the area of the lake's outlet which render it inoperable. This problem increases as the level in the reservoir falls. The sediment that is carried through the outlet pipes is deposited in the canal below the dam. The sediment builds up and eventually plugs the outlet tubes. Divers have been hired in recent years to clear the sand with vacuums, but the outlets soon silt back in. In the late 1980's, the outlets were reconstructed with the emphases on the structure rather than the sedimentation problem. Pioneer Canal-Lake Hattie Irrigation District has requested a Level II study to examine the rehabilitation of the outlet works with the emphases on the sedimentation problem. This project will require sediment transport analysis.

The WWDC recommends the project be incorporated into the Rehabilitation Program at Level II with an appropriation of $60,000.

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