Wamsutter Wastewater
Wamsutter Wastewater is an earth dam located in Sweetwater County, Wyoming, built in 1979. It carries a Low hazard potential classification and has a fair condition assessment.
About Wamsutter Wastewater
The primary purpose of Wamsutter Wastewater is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Town Of Wamsutter (local government). It impounds the Offchannel.
The dam stands 8 feet tall and stretches 2,000 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 148 acre-feet. Completed in 1979, the structure is 47 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 05/16/2022.
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Location
| State | Wyoming |
| County | Sweetwater |
| River/Stream | Offchannel |
| Coordinates | 41.67890, -107.96470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 148 acre-ft |
| Max Storage | 148 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 15 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | TOWN OF WAMSUTTER |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/16/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01948 |
| Federal ID | WY01948 |
| More Info | State Dam Safety Program |