Pr-71 Retention Dam
Montana — Phillips County — ALKALI CK./MILK RIVER
Location
| State | Montana |
| County | Phillips |
| River | ALKALI CK./MILK RIVER |
| Coordinates | 48.25147, -108.07480 |
Physical Characteristics
| NID Height | 16 ft |
| Dam Height | — |
| Dam Length | 581 ft |
| NID Storage | 131 acre-ft |
| Max Storage | 131 acre-ft |
| Surface Area | 34 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Rated |
| EAP Status | Not Required |
| Last Inspection | August 15, 2016 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1936 |
| Primary Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Dam Type | Gravity |
| Owner Type | Federal |
| Owner | DOI BLM |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.