Rocky Fork Lake Dam
Rocky Fork Lake Dam is a concrete dam located in Highland County, Ohio, built in 1952. It carries a High hazard potential classification and has a poor condition assessment.
About Rocky Fork Lake Dam
The primary purpose of Rocky Fork Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Odnr, Division Of Parks & Watercraft (state). It impounds the Rocky Fork Of Paint Creek near Mccoppin Mill.
The dam stands 74 feet tall and stretches 380 feet across, creates a reservoir covering 2,100 acres, has a maximum storage capacity of 87,050 acre-feet, and collects water from a drainage area of 114 square miles. Completed in 1952, the structure is well into its service life at over 50 years old.
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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/06/2023.
At 74 feet, this dam is taller than 97% of all dams in the United States.
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 Ohio 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 | Ohio |
| County | Highland |
| Nearest City | Mccoppin Mill |
| River/Stream | Rocky Fork Of Paint Creek |
| Coordinates | 39.18417, -83.43944 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 74 ft |
| Dam Height | 74 ft |
| Dam Length | 380 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 87,050 acre-ft |
| Max Storage | 87,050 acre-ft |
| Normal Storage | 35,299 acre-ft |
| Surface Area | 2,100 acres |
| Drainage Area | 114 sq mi |
| Max Discharge | 42,489 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | ODNR, Division of Parks & Watercraft |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 06/06/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00302 |
| Federal ID | OH00302 |
| More Info | State Dam Safety Program |