Big Four Reservoir Dam
Big Four Reservoir Dam is an earth dam located in Madison County, Illinois, built in 1906. It carries a Low hazard potential classification.
About Big Four Reservoir Dam
The primary purpose of Big Four Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Elton Skinner (private). It impounds the Trib Silver Creek near Lebanon-offstream.
The dam stands 27 feet tall and stretches 391 feet across, and has a maximum storage capacity of 276 acre-feet. Completed in 1906, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 06/02/2022.
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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 |
Identifiers
| NID ID | IL00201 |
| Federal ID | IL00201 |
| More Info | State Dam Safety Program |