The Culbertson Diversion Dam is a concrete structure containing two 14- by 9.5-foot radial-type spillway gates and a 30-inch-diameter bypass conduit. The canal headworks is a concrete structure containing two 10- by 6-foot radial gates and a spillway stilling basin. The diversion capacity required is 400 cubic feet per second at water surface elevation 2740.2. The spillway gates are designed for a capacity of 1,250 cubic feet per second, at water surface elevation 2741.0 and tailwater at elevation 2737.0. The remainder of the flood will flow over the wasteway and low-lying flood plain to the south of the main channel and will re-enter the main channel downstream from the diversion dam. The 30-inch bypass conduit is required to meet downstream water needs and to assist in sluicing deposited material through the dam. The canal is 27.3 miles long.
General
Project
PSMBP-Frenchman-Cambridge
Longitude
-101.10267
Watercourse
Frenchman
Original Construction
1959
Latitude
40.36186
Dimensions
Structural Height
17 ft
Crest Length
150 ft
Crest Elevation
2744 ft
Hydraulic Height (Normal Operating Depth at Dam)
7 ft
Hydraulics & Hydrology
Spillway Capacity at Elevation
1250 cfs at 2740.2
Contact
More Information about the U.S. Bureau of Reclamation
