Wilson Lake Dam is an earth dam located in Washington County, Arkansas, built in 1941. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 49 ft49 ft tall and 640 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Wilson Lake Dam
The primary purpose of Wilson Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Fayetteville (local government). It impounds the White River-tr near Fayetteville.
The dam stands 49 feet tall and stretches 640 feet across, creates a reservoir covering 190 acres, and has a maximum storage capacity of 512 acre-feet. Completed in 1941, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 08/04/2020.
At 49 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Arkansas |
| County | Washington |
| Nearest City | Fayetteville |
| River/Stream | White River-tr |
| Coordinates | 36.00111, -94.13639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 49 ft |
| Dam Height | 49 ft |
| Dam Length | 640 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 512 acre-ft |
| Max Storage | 512 acre-ft |
| Normal Storage | 317 acre-ft |
| Surface Area | 190 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Fayetteville |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/04/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR00285 |
| Federal ID | AR00285 |
| More Info | State Dam Safety Program |