Illinois Central Reservoir Dam
Illinois — Jefferson County — FOURMILE CREEK
Location
| State | Illinois |
| County | Jefferson |
| River | FOURMILE CREEK |
| Coordinates | 38.30951, -88.73206 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 775 ft |
| NID Storage | 874 acre-ft |
| Max Storage | 874 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | No |
| Last Inspection | June 2, 2025 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1926 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | ILLINOIS CENTRAL GULF RAILROAD |
| Other Name | Illinois Central Reservoir |
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.