Hannen Lake Dam
Iowa — Benton County — TR-COON CREEK
Location
| State | Iowa |
| County | Benton |
| River | TR-COON CREEK |
| Coordinates | 41.86300, -92.11230 |
Physical Characteristics
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 600 ft |
| NID Storage | 886 acre-ft |
| Max Storage | 886 acre-ft |
| Surface Area | 39 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | June 27, 2024 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1959 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Benton County Conservation Board |
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.