Little Grassy Dam
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Illinois |
| County | Williamson |
| Nearest City | Carbondale, IL |
| River/Stream | Little Grassy Creek |
| Coordinates | 37.64667, -89.13833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 88 ft |
| Dam Height | 88 ft |
| Dam Length | 3,650 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 30,900 acre-ft |
| Max Storage | 30,900 acre-ft |
| Normal Storage | 24,000 acre-ft |
| Surface Area | 960 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 35,943 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 07/27/2016 |
| Emergency Action Plan | Yes |