Wilson No. 1
Wilson No. 1 is an earth dam located in Converse County, Wyoming, built in 1977. It carries a Low hazard potential classification and has a fair condition assessment.
About Wilson No. 1
The primary purpose of Wilson No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wagonhound Land & Livestock Company, Llc (private). It impounds the Sheep Creek.
The dam stands 25 feet tall and stretches 600 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 79 acre-feet. Completed in 1977, the structure is 49 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 06/16/2025.
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Location
| State | Wyoming |
| County | Converse |
| River/Stream | Sheep Creek |
| Coordinates | 42.65200, -105.51040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 600 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 713 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WAGONHOUND LAND & LIVESTOCK COMPANY, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/16/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01308 |
| Federal ID | WY01308 |
| More Info | State Dam Safety Program |