Pr-11 Retention Dam
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Phillips |
| Nearest City | FORT PECK |
| River/Stream | BEAUCHAMP CK./MISSOURI RIVER(R |
| Coordinates | 47.84750, -108.20255 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 17 ft |
| Dam Length | 294 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 529 acre-ft |
| Max Storage | 529 acre-ft |
| Surface Area | 99 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/15/2016 |
| Emergency Action Plan | Not Required |