Harrison Lake Dam is an earth dam located in Fulton County, Ohio, built in 1941. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 1,800 ft long, taller than 80% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Harrison Lake Dam
The primary purpose of Harrison 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 Mill Creek near Zone.
The dam stands 35 feet tall and stretches 1,800 feet across, creates a reservoir covering 100 acres, has a maximum storage capacity of 1,750 acre-feet, and collects water from a drainage area of 38 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.
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. 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 06/20/2023.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Ohio |
| County | Fulton |
| Nearest City | Zone |
| River/Stream | Mill Creek |
| Coordinates | 41.64000, -84.36167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 1,800 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 1,750 acre-ft |
| Max Storage | 1,750 acre-ft |
| Normal Storage | 675 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 38 sq mi |
| Max Discharge | 12,500 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Odnr, Division of Parks & Watercraft |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00421 |
| Federal ID | OH00421 |
| More Info | State Dam Safety Program |