Polar Bear Reservoir is an earth dam located in Blaine County, Montana, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 75 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Polar Bear Reservoir
The primary purpose of Polar Bear Reservoir 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 State of Montana, D.n.r.c., T.l.m.d. (state). It impounds the Tr-fifteenmile Creek near Dodson.
The dam stands 20 feet tall and stretches 75 feet across, and has a maximum storage capacity of 210 acre-feet. Completed in 1950, 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.
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Location
| State | Montana |
| County | Blaine |
| Nearest City | Dodson |
| River/Stream | Tr-fifteenmile Creek |
| Coordinates | 48.31530, -108.93820 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 75 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 210 acre-ft |
| Max Storage | 210 acre-ft |
| Normal Storage | 129 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | State of Montana, D.n.r.c., T.l.m.d. |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03177 |
| Federal ID | MT03177 |
| More Info | State Dam Safety Program |