Cow Creek
Cow Creek is an earth dam located in Sweetwater County, Wyoming, built in 1987. It carries a Low hazard potential classification and has a fair condition assessment.
About Cow Creek
The primary purpose of Cow Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Diamond Peak Land Company Llc (private). It impounds the Shell Creek.
The dam stands 16 feet tall and stretches 1,715 feet across, creates a reservoir covering 93 acres, has a storage capacity of 698 acre-feet, and collects water from a drainage area of 135 square miles. Completed in 1987, the structure is 39 years old.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/30/2022.
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Location
| State | Wyoming |
| County | Sweetwater |
| River/Stream | Shell Creek |
| Coordinates | 41.14730, -108.41370 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 1,715 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 698 acre-ft |
| Normal Storage | 698 acre-ft |
| Surface Area | 93 acres |
| Drainage Area | 135 sq mi |
| Max Discharge | 1,270 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | DIAMOND PEAK LAND COMPANY LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/30/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01603 |
| Federal ID | WY01603 |
| More Info | State Dam Safety Program |