| Canyon Ferry Dam | |
|---|---|
 | |
  Location of the dam in Montana, USA | |
| Country | United States |
| Location | Lewis and Clark County, Montana, USA |
| Coordinates | 46°38′54″N 111°43′39″W / 46.64833°N 111.72750°W |
| Status | Operational |
| Construction began | May 24, 1949 |
| Opening date | June 23, 1954 |
| Owner(s) | U.S. Bureau of Reclamation |
| Dam and spillways | |
| Type of dam | Gravity |
| Impounds | Missouri River |
| Height | 225 ft (69 m) |
| Length | 1,000 ft (305 m) |
| Width (crest) | 20 ft (6 m) |
| Width (base) | 173 ft (53 m) |
| Dam volume | 414,400 cu yd (316,832 m3) |
| Spillway type | Service, four controlled-gates |
| Spillway capacity | 150,000 cu ft/s (4,248 m3/s) |
| Reservoir | |
| Creates | Canyon Ferry Lake |
| Total capacity | 1,997,900 acre⋅ft (2.4644 km3) |
| Normal elevation | 3,797 ft (1,157 m) |
| Commission date | 1953–1954 |
| Turbines | 3 x 16.5 MW Francis-type |
| Installed capacity | 50 MW |
| Annual generation | 277,052,777 KWh[1] |
Canyon Ferry Dam is a concrete gravity dam in a narrow valley of the Missouri River, United States, where the Big Belt Mountains and the Spokane Hills merge, approximately 68 miles (109 km) downstream from the confluence of the Gallatin, Madison, and Jefferson rivers, and about 20 miles (32 km) east of the city of Helena, Montana. The dam is for flood control, irrigation, recreation and hydroelectric power. The building of the dam created a reservoir known as Canyon Ferry Lake.
- ^ "Canyon Ferry Dam". U.S. Bureau of Reclamation. Retrieved 2018-04-26.