Cooper-adams #4
Cooper-adams #4 is an earth dam located in Fergus County, Montana, built in 1960. It carries a Low hazard potential classification.
About Cooper-adams #4
The primary purpose of Cooper-adams #4 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 (private). It impounds the Bear Creek near Mosby.
The dam stands 15 feet tall and stretches 450 feet across, and has a maximum storage capacity of 138 acre-feet. 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 | 47.27130, -108.70640 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 450 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Normal Storage | 54 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CHARLES W. OWEN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02595 |
| Federal ID | MT02595 |
| More Info | State Dam Safety Program |