Mountain Ben is a private irrigation dam located in Powell County, Montana, specifically in the city of Deer Lodge.
Wind
Humidity
Built in 1920 by the USDA NRCS, this earth dam stands at a height of 9 feet and spans 125 feet in length, with a maximum storage capacity of 77 acre-feet and a normal storage capacity of 45 acre-feet. Situated on Dempsey Creek, the dam serves the primary purpose of irrigation and is regulated by the Forest Service.
With a low hazard potential, Mountain Ben has not undergone a recent condition assessment, but its emergency action plan status and risk management measures are currently not available. Despite the lack of updated information on its maintenance and safety protocols, the dam continues to provide valuable water resources for agricultural use in the surrounding area. Water resource and climate enthusiasts can appreciate the historical significance and functional importance of this structure in sustaining local irrigation practices.
Year Completed |
1920 |
Dam Length |
125 |
Dam Height |
9 |
River Or Stream |
Dempsey Creek |
Primary Dam Type |
Earth |
Hydraulic Height |
6 |
Nid Storage |
77 |
Hazard Potential |
Low |
Nid Height |
9 |
| Location | Reservations | Toilets |
|---|---|---|
Racetrack Cabin
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Racetrack
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Racetrack Campground and Picnic Area
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Lost Creek State Park
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Lst Creek Campground
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Warm Springs
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