Gollaher Reservoir
Significant Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Cascade |
| Nearest City | ULM |
| River/Stream | WILLOW CREEK |
| Coordinates | 47.22190, -111.62050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 1,130 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 827 acre-ft |
| Max Storage | 827 acre-ft |
| Normal Storage | 613 acre-ft |
| Surface Area | 41 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 525 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | GOLLAHER RANCH CO. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |