Little Grassy Dam
Illinois — Williamson County
Location
| State | Illinois |
| County | Williamson |
| Coordinates | 37.64667, -89.13833 |
Physical Characteristics
| NID Height | 88 ft |
| Dam Height | 88 ft |
| Dam Length | 3,650 ft |
| NID Storage | 30,900 acre-ft |
| Max Storage | 30,900 acre-ft |
| Surface Area | 960 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1942 |
| Primary Purpose | Fish and Wildlife Pond |
| Dam Type | — |
| Owner Type | — |
| 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.