Lake Thunderhawk Dam
Illinois — Johnson County — LITTLE SALINE RIVER
Location
| State | Illinois |
| County | Johnson |
| River | LITTLE SALINE RIVER |
| Coordinates | 37.56162, -88.75541 |
Physical Characteristics
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 490 ft |
| NID Storage | 383 acre-ft |
| Max Storage | 383 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Available |
| EAP Status | No |
| Last Inspection | July 26, 2024 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1975 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | FRNAK NUTTY |
| Other Name | Lake Thunderhawk |
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.