Cox Lake Dam is a rockfill dam located in Polk County, Arkansas, built in 1958. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 420 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Cox Lake Dam
The primary purpose of Cox Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Unknown. It impounds the Prairie Creek near Mena.
The dam stands 23 feet tall and stretches 420 feet across, and has a maximum storage capacity of 88 acre-feet. Completed in 1958, 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.
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Location
| State | Arkansas |
| County | Polk |
| Nearest City | Mena |
| River/Stream | Prairie Creek |
| Coordinates | 34.57000, -94.24167 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 420 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 88 acre-ft |
| Max Storage | 88 acre-ft |
| Normal Storage | 64 acre-ft |
Ownership & Safety
| Purpose | Recreation |
| Owner | Unknown |
| Owner Type | Not Listed |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR00907 |
| Federal ID | AR00907 |
| More Info | State Dam Safety Program |