Koski Dam
Iowa — Harrison County — Trib to Willow Creek
Location
| State | Iowa |
| County | Harrison |
| River | Trib to Willow Creek |
| Coordinates | 41.85500, -95.71360 |
Physical Characteristics
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 500 ft |
| NID Storage | 48 acre-ft |
| Max Storage | 48 acre-ft |
| Surface Area | 2 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Rated |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 2011 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | George Koski |
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.