| Boysen Dam | |
|---|---|
 Boysen Dam in 2012 | |
  Location of Boysen Dam in the state of Wyoming. | |
| Country | United States |
| Location | Fremont County, Wyoming |
| Coordinates | 43°25′02″N 108°10′39″W / 43.41722°N 108.17750°W |
| Status | In use |
| Construction began | 1947 |
| Opening date | 1952 |
| Construction cost | $18.5 million |
| Owner(s) | U.S. Bureau of Reclamation |
| Dam and spillways | |
| Type of dam | Rockfill |
| Impounds | Wind River |
| Height | 220 ft (67 m) |
| Length | 1,143 ft (348 m) |
| Elevation at crest | 4,758 ft (1,450 m) |
| Width (crest) | 30 ft (9.1 m) |
| Width (base) | 919 ft (280 m) |
| Dam volume | 1,527,386 cu yd (1,167,770 m3) |
| Spillways | 2 |
| Spillway type | Concrete chute and river outlets |
| Spillway capacity | 26,300 cu ft/s (740 m3/s) |
| Reservoir | |
| Creates | Boysen Reservoir |
| Total capacity | 952,400 acre⋅ft (1,174,800 dam3) |
| Active capacity | 802,000 acre⋅ft (989,000 dam3) |
| Inactive capacity | 150,400 acre⋅ft (185,500 dam3) |
| Catchment area | 7,700 sq mi (20,000 km2) |
| Surface area | 19,560 acres (7,920 ha) |
| Maximum water depth | 117 ft (36 m) |
| Normal elevation | 4,732 ft (1,442 m) (max) |
| Power Station | |
| Turbines | 2 |
| Installed capacity | 15 MW |
| Annual generation | 37,856,600 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.