Black Eagle
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Cascade |
| Nearest City | Fort Benton |
| River/Stream | Missouri River |
| Coordinates | 47.51970, -111.26310 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 41 ft |
| Dam Height | 35 ft |
| Dam Length | 1,670 ft |
| Year Completed | 1891 (135 years old) |
Storage & Hydraulics
| NID Storage | 1,710 acre-ft |
| Normal Storage | 1,710 acre-ft |
| Surface Area | 402 acres |
| Drainage Area | 22,100 sq mi |
| Max Discharge | 94,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | NorthWestern Energy |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 07/19/2022 |
| Emergency Action Plan | Yes |