Gravelly Range Lake
Significant Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Lewis and Clark |
| Nearest City | CANYON CREEK |
| River/Stream | TR-COTTONWOOD CREEK |
| Coordinates | 46.83560, -112.37020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 36 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 627 acre-ft |
| Max Storage | 627 acre-ft |
| Normal Storage | 483 acre-ft |
| Drainage Area | 3 sq mi |
| Max Discharge | 20 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ED GRADY |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |