Three Mile Reservoir Dam
Iowa — Union County — THREE MILE CREEK
Location
| State | Iowa |
| County | Union |
| River | THREE MILE CREEK |
| Coordinates | 41.07240, -94.21190 |
Physical Characteristics
| NID Height | 63 ft |
| Dam Height | 63 ft |
| Dam Length | 1,850 ft |
| NID Storage | 29,950 acre-ft |
| Max Storage | 29,950 acre-ft |
| Surface Area | 880 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | June 10, 2020 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1995 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | State |
| Owner | Iowa Department of Natural Resources |
| Other Name | Three Mile Creek Watershed Site M-2 |
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.