Cooper-adams #6
Cooper-adams #6 is an earth dam located in Fergus County, Montana, built in 1960. It carries a Low hazard potential classification.
About Cooper-adams #6
The primary purpose of Cooper-adams #6 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Charles W. Owen Trust (private). It impounds the Bear Creek near Mosby.
The dam stands 13 feet tall and stretches 300 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 372 acre-feet, and collects water from a drainage area of 85 square miles. Completed in 1960, the structure is well into its service life at over 50 years old.
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 | Fergus |
| Nearest City | Mosby |
| River/Stream | Bear Creek |
| Coordinates | 47.27450, -108.67230 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 300 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 372 acre-ft |
| Max Storage | 372 acre-ft |
| Normal Storage | 71 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 85 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CHARLES W. OWEN TRUST |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02597 |
| Federal ID | MT02597 |
| More Info | State Dam Safety Program |