Lake Thunderhawk Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Johnson |
| Nearest City | MITCHELLSVILLE |
| River/Stream | LITTLE SALINE RIVER |
| Coordinates | 37.56162, -88.75541 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 490 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 383 acre-ft |
| Max Storage | 383 acre-ft |
| Normal Storage | 232 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | FRNAK NUTTY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 07/26/2024 |
| Emergency Action Plan | No |