Lake Matherville Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Mercer |
| Nearest City | MATHERVILLE |
| River/Stream | TRIB EDWARDS RIVER |
| Coordinates | 41.26153, -90.61159 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 606 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 158 acre-ft |
| Max Storage | 158 acre-ft |
| Normal Storage | 81 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | CITY OF MATHERVILLE |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/02/2025 |
| Emergency Action Plan | No |