Lake Chautauqua Upper Dam
Illinois — Mason County — See Note
Location
| State | Illinois |
| County | Mason |
| River | See Note |
| Coordinates | 40.38750, -89.95833 |
Physical Characteristics
| NID Height | 21 ft |
| Dam Height | 17 ft |
| Dam Length | 15,424 ft |
| NID Storage | 17,280 acre-ft |
| Max Storage | 17,280 acre-ft |
| Surface Area | 1,200 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Poor |
| EAP Status | Not Required |
| Last Inspection | September 9, 2019 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1916 |
| Primary Purpose | Fish and Wildlife Pond |
| Dam Type | Earth |
| Owner Type | Federal |
| Owner | US FISH AND WILDLIFE SERVICE |
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.