Lake Wilhelmina Dam
High HazardPoor ConditionEmergency Action Plan: No
Location
| State | Arkansas |
| County | Polk |
| Nearest City | ROCKY |
| River/Stream | POWELL CREEK |
| Coordinates | 34.59969, -94.36037 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 75 ft |
| Dam Height | 75 ft |
| Dam Length | 1,240 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 2,940 acre-ft |
| Max Storage | 2,940 acre-ft |
| Normal Storage | 1,680 acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 4,050 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Arkansas Game and Fish Commission |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 08/12/2025 |
| Emergency Action Plan | No |