Big Wash is a gravity dam located in Beaver County, Utah, built in 1943. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 742 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Big Wash
The primary purpose of Big Wash is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Doi BLM (federal).
The dam stands 24 feet tall and stretches 742 feet across, and has a maximum storage capacity of 97 acre-feet. Completed in 1943, 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. The most recent inspection on record was 09/24/2012. That was over 14 years ago.
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Location
| State | Utah |
| County | Beaver |
| Nearest City | Milford |
| Coordinates | 38.40448, -113.20759 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 24 ft |
| Dam Length | 742 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 97 acre-ft |
| Max Storage | 97 acre-ft |
| Normal Storage | 97 acre-ft |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/24/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | UT00357 |
| Federal ID | UT00357 |
| More Info | State Dam Safety Program |