Richey, Roy is an earth dam located in Dawson County, Montana, built in 1938. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 350 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 Richey, Roy
The primary purpose of Richey, Roy is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Emily Richey (private). It impounds the Tr-pasture Creek.
The dam stands 20 feet tall and stretches 350 feet across, and has a maximum storage capacity of 135 acre-feet. Completed in 1938, the structure is well-established, with more than 75 years of service.
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 | Dawson |
| Nearest City | None |
| River/Stream | Tr-pasture Creek |
| Coordinates | 47.64800, -105.12120 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 350 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 135 acre-ft |
| Max Storage | 135 acre-ft |
| Normal Storage | 46 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Emily Richey |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00513 |
| Federal ID | MT00513 |
| More Info | State Dam Safety Program |