Mclean Dam (hill) is an earth dam located in Hill County, Montana, built in 1899. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 520 ft long, taller than 50% of U.S. dams with a recorded height. 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 Mclean Dam (hill)
The primary purpose of Mclean Dam (hill) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Metzger Land & Livestock (private). It impounds the Dog Coulee near Chinook.
The dam stands 25 feet tall and stretches 520 feet across, and has a maximum storage capacity of 257 acre-feet. Completed in 1899, the structure is over a century 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 | Hill |
| Nearest City | Chinook |
| River/Stream | Dog Coulee |
| Coordinates | 48.86400, -109.78330 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 520 ft |
| Year Completed | 1899 (127 years old) |
Storage & Hydraulics
| NID Storage | 257 acre-ft |
| Max Storage | 257 acre-ft |
| Normal Storage | 152 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Metzger Land & Livestock |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00291 |
| Federal ID | MT00291 |
| More Info | State Dam Safety Program |