Shirley Basin Reservoir
Shirley Basin Reservoir is a gravity dam located in Carbon County, Wyoming, built in 1941. It carries a Low hazard potential classification.
About Shirley Basin Reservoir
The primary purpose of Shirley Basin Reservoir 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). It impounds the Tributary To Muddy Creek.
The dam stands 25 feet tall and stretches 714 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 1,706 square miles. Completed in 1941, 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 09/21/2015. That was over 10 years ago.
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Location
| State | Wyoming |
| County | Carbon |
| River/Stream | Tributary To Muddy Creek |
| Coordinates | 42.24025, -106.37069 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 25 ft |
| Dam Length | 714 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 1,706 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/21/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01476 |
| Federal ID | WY01476 |
| More Info | State Dam Safety Program |