Cockran Grazing #2
Cockran Grazing #2 is an earth dam located in Carter County, Montana, built in 1960. It carries a Low hazard potential classification.
About Cockran Grazing #2
The primary purpose of Cockran Grazing #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Cochran Grazing Assn (private). It impounds the Middle Fork Willow Creek near Alboin.
The dam stands 20 feet tall and stretches 5,280 feet across, has a maximum storage capacity of 67 acre-feet, and collects water from a drainage area of 10 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 | Carter |
| Nearest City | Alboin |
| River/Stream | Middle Fork Willow Creek |
| Coordinates | 45.10080, -104.69540 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 5,280 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 10 acre-ft |
| Drainage Area | 10 sq mi |
| Max Discharge | 500 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | COCHRAN GRAZING ASSN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03172 |
| Federal ID | MT03172 |
| More Info | State Dam Safety Program |