Thoman
Thoman is an earth dam located in Lincoln County, Wyoming, built in 1945. It carries a Low hazard potential classification and has a poor condition assessment.
About Thoman
The primary purpose of Thoman is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Droopy Loop Livestock Llc (private). It impounds the Gooseberry Creek near Cokeville.
The dam stands 25 feet tall and stretches 560 feet across, creates a reservoir covering 19 acres, and has a maximum storage capacity of 140 acre-feet. Completed in 1945, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 07/19/2023.
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Location
| State | Wyoming |
| County | Lincoln |
| Nearest City | Cokeville |
| River/Stream | Gooseberry Creek |
| Coordinates | 41.83444, -110.91083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 560 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 98 acre-ft |
| Surface Area | 19 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | DROOPY LOOP LIVESTOCK LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/19/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01205 |
| Federal ID | WY01205 |
| More Info | State Dam Safety Program |