Hawthorne Lake Dam
Iowa — Mahaska County
Location
| State | Iowa |
| County | Mahaska |
| Coordinates | 41.47520, -92.45790 |
Physical Characteristics
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 900 ft |
| NID Storage | 4,100 acre-ft |
| Max Storage | 4,100 acre-ft |
| Surface Area | 160 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1979 |
| Primary Purpose | Recreation |
| Dam Type | — |
| Owner Type | — |
| Owner | Iowa Department of Natural Resources |
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.