Shale Lake Dam
Shale Lake Dam is an earth dam located in Madison County, Illinois, built in 1988. It carries a Low hazard potential classification.
About Shale Lake Dam
The primary purpose of Shale Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by David & Susan Wesa (private). It impounds the Trib Silver Creek near Williamson.
The dam stands 32 feet tall and stretches 810 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 575 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1988, the structure is 38 years 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 03/07/2023.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Illinois |
| County | Madison |
| Nearest City | Williamson |
| River/Stream | Trib Silver Creek |
| Coordinates | 38.99035, -89.75943 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 810 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 575 acre-ft |
| Max Storage | 575 acre-ft |
| Normal Storage | 117 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 7,355 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | DAVID & SUSAN WESA |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 03/07/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00200 |
| Federal ID | IL00200 |
| More Info | State Dam Safety Program |