Dam and River Basin

Lake Facts

Authorized: September 3, 1954
Damage Prevented: $43,000,000
Started: July 1959
Surface Acres: 4000 Acres
Gates Closed: July 1962
Flood Acres: 8600 Acres
Completed: October 1963
Multipurpose Pool: 974.0 ft above sea level
Filled: June 1965
Top Flood Pool: 1003.0 ft above sea level
Full Operation: October 1963
Shoreline Miles: 52 Miles
Cost: $13,272,108.

DAM

Type: Rolled Earthfill
Length: 7,750 feet
Base Width: 800 feet
Crown Width: 20 feet
Height Above Streambed: 111 feet
Fill quantity: 5,200,000 cubic yards

TOWER

2 Hydraulic Service Gates: 6 1/2' X 14
2 Hydraulic Emergency Gates: 6 1/2' X14
2 Low Flow Gates: 21
Minimum Release Rate: 15 cfs
Maximum Stream Capacity Release Rate: 3000 cfs
Conduit Length: 120 1/2 feet
Conduit Height: 13 1/2 feet
Water Depth at Tower: 49 feet

OUTLET

Channel Width: 35 feet at the bottom
Stilling Basin Length: 80 feet
Stilling Basin Width: 30 feet

EMERGENCY SPILLWAY

Length: 900 feet
Width: 200-300 feet
Potential release rate: 510,300 cfs

GENERAL

Controlled Drainage Area: 322 sq. miles
Drainage Basin: Osage River Basin
Drainage Basin Length: 38 miles
Drainage Basin Width: 13 miles
Time of-Water Travel: 12 hours to Ottawa, Ks -- 5 1/2 days to Warsaw, Mo
Estimated Sediment Load: 400,000 tons/year (266 acre-ft/yr)