Cochrane
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Cascade |
| Nearest City | Fort Benton |
| River/Stream | Missouri River |
| Coordinates | 47.55290, -111.14900 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 105 ft |
| Dam Height | 100 ft |
| Dam Length | 856 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 8,464 acre-ft |
| Normal Storage | 8,464 acre-ft |
| Surface Area | 249 acres |
| Drainage Area | 23,270 sq mi |
| Max Discharge | 140,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | NorthWestern Energy |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 08/12/2022 |
| Emergency Action Plan | Yes |