Treasure Lake Dam
Illinois — Adams County — TRIB CEDAR CREEK
Location
| State | Illinois |
| County | Adams |
| River | TRIB CEDAR CREEK |
| Coordinates | 39.96713, -91.38061 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 320 ft |
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Surface Area | 5 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | August 12, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1989 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | ROBERT LANSING |
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.