Pr-83 Retention Dam
Pr-83 Retention Dam is a gravity dam located in Phillips County, Montana, built in 1936. It carries a Low hazard potential classification.
About Pr-83 Retention Dam
The primary purpose of Pr-83 Retention Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Doi Blm (federal). It impounds the Beaver Ck./milk River near Saco.
The dam stands 18 feet tall and stretches 343 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 234 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 08/16/2016.
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Location
| State | Montana |
| County | Phillips |
| Nearest City | Saco |
| River/Stream | Beaver Ck./milk River |
| Coordinates | 47.98361, -107.47623 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 18 ft |
| Dam Length | 343 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 234 acre-ft |
| Max Storage | 234 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/16/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00788 |
| Federal ID | MT00788 |
| More Info | State Dam Safety Program |