Little Bear/us #37 Dam is a gravity dam located in Petroleum County, Montana. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 383 ft long. 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 Little Bear/us #37 Dam
The primary purpose of Little Bear/us #37 Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Doi BLM (federal). It impounds the Intermittent.
The dam stands 17 feet tall and stretches 383 feet across, creates a reservoir covering 207 acres, has a maximum storage capacity of 2,108 acre-feet, and collects water from a drainage area of 17 square miles.
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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 11/09/2019.
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Location
| State | Montana |
| County | Petroleum |
| River/Stream | Intermittent |
| Coordinates | 47.11010, -108.46328 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 17 ft |
| Dam Length | 383 ft |
Storage & Hydraulics
| NID Storage | 2,108 acre-ft |
| Max Storage | 2,108 acre-ft |
| Surface Area | 207 acres |
| Drainage Area | 17 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 11/09/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02236 |
| Federal ID | MT02236 |
| More Info | State Dam Safety Program |