Johnson Lake Dam
Illinois — Wayne County — TRIB ENDSLEY CREEK
Location
| State | Illinois |
| County | Wayne |
| River | TRIB ENDSLEY CREEK |
| Coordinates | 38.56387, -88.40022 |
Physical Characteristics
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 400 ft |
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Surface Area | 7 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Available |
| EAP Status | No |
| Last Inspection | July 29, 2025 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 2002 |
| Primary Purpose | Debris Control |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | WILLIAM JOHNSON |
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.