Wallenstein is an earth dam located in Carter County, Montana, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 75 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 Wallenstein
The primary purpose of Wallenstein is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ernest Wallstein (private). It impounds the Tr-humbolt Creek near Marmarth N Dakota.
The dam stands 20 feet tall and stretches 75 feet across, has a maximum storage capacity of 93 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, 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 | Carter |
| Nearest City | Marmarth N Dakota |
| River/Stream | Tr-humbolt Creek |
| Coordinates | 45.82650, -104.07320 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 75 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 93 acre-ft |
| Max Storage | 93 acre-ft |
| Normal Storage | 48 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 500 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Ernest Wallstein |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00093 |
| Federal ID | MT00093 |
| More Info | State Dam Safety Program |