Winnewana Dam
Michigan — Washtenaw County — Tributary to Portage River
Location
| State | Michigan |
| County | Washtenaw |
| River | Tributary to Portage River |
| Coordinates | 42.34861, -84.11065 |
Physical Characteristics
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 270 ft |
| NID Storage | 1,560 acre-ft |
| Max Storage | 1,560 acre-ft |
| Surface Area | 280 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | June 5, 2017 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1956 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | State |
| Owner | MDNR Parks & Recreation |
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.