Michael J. Kirwan Dam
Ohio — Portage County — WEST BRANCH OF THE MAHONING
Location
| State | Ohio |
| County | Portage |
| River | WEST BRANCH OF THE MAHONING |
| Coordinates | 41.15654, -81.07931 |
Physical Characteristics
| NID Height | 83 ft |
| Dam Height | — |
| Dam Length | 9,900 ft |
| NID Storage | 124,000 acre-ft |
| Max Storage | 124,000 acre-ft |
| Surface Area | 2,650 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | May 4, 2026 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1966 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Federal |
| Owner | USACE - Pittsburgh District |
| Other Name | Michael J Kirwan Reservoir |
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.