Cochrane Dam should not be confused with Cochrane Dam (New South Wales).
| Cochrane Dam | |
| Location Map: | Montana |
| Location Map Caption: | Location of Cochrane Dam in Montana |
| Coordinates: | 47.5531°N -111.1489°W |
| Country: | United States of America |
| Location: | Cascade County, Montana |
| Status: | In use |
| Opening: | 1958 |
| Owner: | NorthWestern Corporation |
| Dam Type: | Concrete gravity |
| Dam Height: | 59feet |
| Dam Length: | 753feet |
| Dam Crosses: | Missouri River |
| Spillway Count: | 1 |
| Spillway Type: | Gated service |
| Res Name: | Cochrane Lake |
| Res Capacity Total: | 2700acre.ft |
| Res Catchment: | 24000sqmi |
| Res Surface: | 218acres |
| Plant Turbines: | 2 |
| Plant Capacity: | 64 MW |
| Plant Annual Gen: | 298,390,000 KWh (2009)[1] |
Cochrane Dam is a run-of-the river hydroelectric dam on the Missouri River, about 8miles northeast of Great Falls in the U.S. state of Montana.[2] The dam has a concrete gravity design and is 59feet high and 753feet long. Its power station has two generators capable of producing 64 megawatts. Construction of the dam was finished in 1958.[3] Montana Power Company originally built the dam, PPL Corporation purchased it in 1997 and sold it to NorthWestern Corporation in 2014.