Cockran Grazing #4 is an earth dam located in Carter County, Montana, built in 1959. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 800 ft long. 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 Cockran Grazing #4
The primary purpose of Cockran Grazing #4 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Cochran Grazing Assn (private). It impounds the Tr-thompson Creek near Capitol.
The dam stands 15 feet tall and stretches 800 feet across, and has a maximum storage capacity of 68 acre-feet. Completed in 1959, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Carter |
| Nearest City | Capitol |
| River/Stream | Tr-thompson Creek |
| Coordinates | 45.02620, -104.66800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 800 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 68 acre-ft |
| Max Storage | 68 acre-ft |
| Normal Storage | 7 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Cochran Grazing Assn |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03052 |
| Federal ID | MT03052 |
| More Info | State Dam Safety Program |