Cap Rock #1
Cap Rock #1 is an earth dam located in Custer County, Montana, built in 1966. It carries a Low hazard potential classification.
About Cap Rock #1
The primary purpose of Cap Rock #1 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 Cap Rock Ranch Inc (private). It impounds the Tr-muster Creek near Kinsey.
The dam stands 20 feet tall and stretches 396 feet across, and has a maximum storage capacity of 62 acre-feet. Completed in 1966, 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 | Custer |
| Nearest City | Kinsey |
| River/Stream | Tr-muster Creek |
| Coordinates | 46.71970, -105.87900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 396 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 32 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | CAP ROCK RANCH INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01195 |
| Federal ID | MT01195 |
| More Info | State Dam Safety Program |