Lake Winona Dam
Lake Winona Dam is an earth dam located in Saline County, Arkansas, built in 1938. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lake Winona Dam
The primary purpose of Lake Winona Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Central Arkansas Water (local government). It impounds the Alum Fork Creek near Benton.
The dam stands 115 feet tall and stretches 2,800 feet across, creates a reservoir covering 1,280 acres, has a maximum storage capacity of 63,264 acre-feet, and collects water from a drainage area of 43 square miles. Completed in 1938, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 02/28/2020.
At 115 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Arkansas |
| County | Saline |
| Nearest City | Benton |
| River/Stream | Alum Fork Creek |
| Coordinates | 34.79667, -92.85000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 115 ft |
| Dam Height | 115 ft |
| Dam Length | 2,800 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 63,264 acre-ft |
| Max Storage | 63,264 acre-ft |
| Normal Storage | 41,799 acre-ft |
| Surface Area | 1,280 acres |
| Drainage Area | 43 sq mi |
| Max Discharge | 64,911 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Central Arkansas Water |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/28/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR00001 |
| Federal ID | AR00001 |
| More Info | State Dam Safety Program |