Dreves is an earth dam located in Yellowstone County, Montana, built in 1938. It carries a Significant hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 700 ft long, taller than 85% 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 Dreves
The primary purpose of Dreves is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Oreves Farming Corp (private). It impounds the Coulee.
The dam stands 39 feet tall and stretches 700 feet across, and has a maximum storage capacity of 170 acre-feet. Completed in 1938, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Montana |
| County | Yellowstone |
| Nearest City | None |
| River/Stream | Coulee |
| Coordinates | 46.03940, -108.70000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 700 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 150 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Oreves Farming Corp |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01069 |
| Federal ID | MT01069 |
| More Info | State Dam Safety Program |