Exxonmobil Coal Usa/Mine 2/Freshwater Lake Dam
Illinois — Clinton County — TRIB GRASSY BRANCH
Location
| State | Illinois |
| County | Clinton |
| River | TRIB GRASSY BRANCH |
| Coordinates | 38.53631, -89.60401 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 800 ft |
| NID Storage | 423 acre-ft |
| Max Storage | 423 acre-ft |
| Surface Area | 545 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Available |
| EAP Status | No |
| Last Inspection | July 24, 2025 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1975 |
| Primary Purpose | Recreation |
| Dam Type | Rockfill |
| Owner Type | Private |
| Owner | EXXONMOBIL ENVIRONMENTAL SERVICES COMPAN |
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.