Carlyle Dam
Illinois — Clinton County — KASKASKIA RIVER
Location
| State | Illinois |
| County | Clinton |
| River | KASKASKIA RIVER |
| Coordinates | 38.61883, -89.35229 |
Physical Characteristics
| NID Height | 68 ft |
| Dam Height | 68 ft |
| Dam Length | 6,570 ft |
| NID Storage | 1,286,900 acre-ft |
| Max Storage | 1,286,900 acre-ft |
| Surface Area | 24,580 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | March 24, 2026 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1966 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Concrete |
| Owner Type | Federal |
| Owner | USACE - St. Louis District |
| Other Name | Carlyle Lake |
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.