Stump Retention Dam is a gravity dam located in Powder River County, Montana, built in 2003. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 764 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Stump Retention Dam
The primary purpose of Stump 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 Timber Ck./powder River near Terry.
The dam stands 31 feet tall and stretches 764 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 310 acre-feet. Completed in 2003, the structure is relatively new.
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 07/18/2015. That was over 11 years ago.
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Location
| State | Montana |
| County | Powder River |
| Nearest City | Terry |
| River/Stream | Timber Ck./powder River |
| Coordinates | 45.68771, -105.04953 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 31 ft |
| Dam Length | 764 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 310 acre-ft |
| Max Storage | 310 acre-ft |
| Surface Area | 25 acres |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/18/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00650 |
| Federal ID | MT00650 |
| More Info | State Dam Safety Program |