Lewis Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | McDonough |
| Nearest City | MACOMB |
| River/Stream | TRIB FARMERS FORK |
| Coordinates | 40.54074, -90.62616 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 490 ft |
Storage & Hydraulics
| NID Storage | 133 acre-ft |
| Max Storage | 133 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 355 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | JERRY LEWIS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/09/2025 |
| Emergency Action Plan | No |