Big Four Reservoir Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Madison |
| Nearest City | LEBANON-OFFSTREAM |
| River/Stream | TRIB SILVER CREEK |
| Coordinates | 38.97981, -89.74321 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 391 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 276 acre-ft |
| Max Storage | 276 acre-ft |
| Normal Storage | 187 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ELTON SKINNER |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 06/02/2022 |
| Emergency Action Plan | No |