Deep Coulee
Deep Coulee is an earth dam located in Petroleum County, Montana, built in 1971. It carries a Low hazard potential classification.
About Deep Coulee
The primary purpose of Deep Coulee is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Clara Bump (private). It impounds the Tr-musselshell River.
The dam stands 25 feet tall and stretches 400 feet across, and has a maximum storage capacity of 35 acre-feet. Completed in 1971, 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 | Petroleum |
| Nearest City | None |
| River/Stream | Tr-musselshell River |
| Coordinates | 47.15970, -108.01230 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 400 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 21 acre-ft |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CLARA BUMP |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00810 |
| Federal ID | MT00810 |
| More Info | State Dam Safety Program |