Mansfield Dam
Mansfield Dam is an earth dam located in Sebastian County, Arkansas, built in 1935. It carries a High hazard potential classification.
About Mansfield Dam
The primary purpose of Mansfield 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 City Of Mansfield (local government). It impounds the Coop Creek near Mansfield.
The dam stands 19 feet tall and stretches 144 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 410 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Arkansas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Arkansas |
| County | Sebastian |
| Nearest City | Mansfield |
| River/Stream | Coop Creek |
| Coordinates | 35.05720, -94.23594 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 144 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 410 acre-ft |
| Max Storage | 410 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 2,060 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Mansfield |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR00939 |
| Federal ID | AR00939 |
| More Info | State Dam Safety Program |