William H. Harsha Dam
Ohio — Clermont County — EAST FORK OF LITTLE MIAMI
Location
| State | Ohio |
| County | Clermont |
| River | EAST FORK OF LITTLE MIAMI |
| Coordinates | 39.02278, -84.15056 |
Physical Characteristics
| NID Height | 205 ft |
| Dam Height | — |
| Dam Length | 1,450 ft |
| NID Storage | 294,800 acre-ft |
| Max Storage | 294,800 acre-ft |
| Surface Area | 2,160 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | July 21, 2025 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1973 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Rockfill |
| Owner Type | Federal |
| Owner | USACE - Louisville District |
| Other Name | William H. Harsha Lake |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.