Boysen Dam

Boysen Dam
Boysen Dam in 2012
Boysen Dam is located in Wyoming
Boysen Dam
Location of Boysen Dam in the state of Wyoming.
CountryUnited States
LocationFremont County, Wyoming
Coordinates43°25′02″N 108°10′39″W / 43.41722°N 108.17750°W / 43.41722; -108.17750
StatusIn use
Construction began1947
Opening date1952
Construction cost$18.5 million
Owner(s)U.S. Bureau of Reclamation
Dam and spillways
Type of damRockfill
ImpoundsWind River
Height220 ft (67 m)
Length1,143 ft (348 m)
Elevation at crest4,758 ft (1,450 m)
Width (crest)30 ft (9.1 m)
Width (base)919 ft (280 m)
Dam volume1,527,386 cu yd (1,167,770 m3)
Spillways2
Spillway typeConcrete chute and river outlets
Spillway capacity26,300 cu ft/s (740 m3/s)
Reservoir
CreatesBoysen Reservoir
Total capacity952,400 acre⋅ft (1,174,800 dam3)
Active capacity802,000 acre⋅ft (989,000 dam3)
Inactive capacity150,400 acre⋅ft (185,500 dam3)
Catchment area7,700 sq mi (20,000 km2)
Surface area19,560 acres (7,920 ha)
Maximum water depth117 ft (36 m)
Normal elevation4,732 ft (1,442 m) (max)
Power Station
Turbines2
Installed capacity15 MW
Annual generation37,856,600 KWh

The Boysen Dam is a rockfill dam on the Wind River in the U.S. state of Wyoming. The dam lies at the head of Wind River Canyon through the Owl Creek Mountains in western Wyoming and creates Boysen Reservoir. It is owned by the U.S. Bureau of Reclamation and furnishes irrigation water supply to the Bighorn Basin as well as providing flood control and hydroelectric power.