Donley Reservoir (rosebud)
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Rosebud |
| Nearest City | FORSYTH |
| River/Stream | LARSON COULEE |
| Coordinates | 46.45730, -106.92990 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 400 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 654 acre-ft |
| Max Storage | 654 acre-ft |
| Normal Storage | 391 acre-ft |
| Drainage Area | 4 sq mi |
| Max Discharge | 3,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | JOE DONLEY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |