R C Mothershead #1
R C Mothershead #1 is an earth dam located in McCone County, Montana, built in 1942. It carries a Low hazard potential classification.
About R C Mothershead #1
The primary purpose of R C Mothershead #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mothershead Bros., Inc. (private). It impounds the Tr-nelson Creek.
The dam stands 17 feet tall and stretches 200 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 144 acre-feet. Completed in 1942, 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 | McCone |
| Nearest City | None |
| River/Stream | Tr-nelson Creek |
| Coordinates | 47.49730, -106.16470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 200 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 144 acre-ft |
| Max Storage | 144 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 6 acres |
Ownership & Safety
| Purpose | Irrigation |
| Owner | MOTHERSHEAD BROS., INC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02470 |
| Federal ID | MT02470 |
| More Info | State Dam Safety Program |