Lake Dunn
Lake Dunn is an earth dam located in Cross County, Arkansas, built in 1975. It carries a Significant hazard potential classification and has a fair condition assessment.
About Lake Dunn
The primary purpose of Lake Dunn is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Arkansas Department Of Parks And Tourism (state). It impounds the Willow Creek near Madison.
The dam stands 50 feet tall and stretches 620 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 1,174 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
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 03/21/2025.
At 50 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Arkansas |
| County | Cross |
| Nearest City | Madison |
| River/Stream | Willow Creek |
| Coordinates | 35.16750, -90.70500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 620 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 1,174 acre-ft |
| Max Storage | 1,174 acre-ft |
| Normal Storage | 1,174 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 627 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Arkansas Department of Parks and Tourism |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/21/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR01284 |
| Federal ID | AR01284 |
| More Info | State Dam Safety Program |