Lake Jacksonville Dam
Illinois — Morgan County — SANDY CREEK
Location
| State | Illinois |
| County | Morgan |
| River | SANDY CREEK |
| Coordinates | 39.67151, -90.21631 |
Physical Characteristics
| NID Height | 54 ft |
| Dam Height | 54 ft |
| Dam Length | 980 ft |
| NID Storage | 12,812 acre-ft |
| Max Storage | 12,812 acre-ft |
| Surface Area | 477 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | April 18, 2024 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1939 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | CITY OF JACKSONVILLE |
| Other Name | Lake Jacksonville |
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.