Lake Jaycee Dam
Illinois — Jefferson County — TRIB CASEY FORK
Location
| State | Illinois |
| County | Jefferson |
| River | TRIB CASEY FORK |
| Coordinates | 38.36974, -88.89895 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 875 ft |
| NID Storage | 2,110 acre-ft |
| Max Storage | 2,110 acre-ft |
| Surface Area | 115 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | June 22, 2025 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1905 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | CITY OF MOUNT VERNON |
| Other Name | Lake Jaycee |
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.