7-b Reservoir is an earth dam located in Garfield County, Montana, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 425 ft long, taller than 82% 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 embankment section and the water level is illustrative.
About 7-b Reservoir
The primary purpose of 7-b Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Glen C Childers (private). It impounds the Tr-indian Creek.
The dam stands 36 feet tall and stretches 425 feet across, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1945, 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.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Montana |
| County | Garfield |
| Nearest City | None |
| River/Stream | Tr-indian Creek |
| Coordinates | 47.47610, -107.54480 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 425 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 128 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 100 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Glen C Childers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01002 |
| Federal ID | MT01002 |
| More Info | State Dam Safety Program |