Colstrip Diversion Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Rosebud |
| Nearest City | COLSTRIP |
| River/Stream | TR-EAST FORK ARMMELLS CREEK |
| Coordinates | 45.90530, -106.65220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 535 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 940 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | TALEN ENERGY |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/14/2014 |
| Emergency Action Plan | Yes |