Wildlife Lake Dam is an earth dam located in Washington County, Illinois, built in 1941. It carries a Significant hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 660 ft long, taller than 68% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Wildlife Lake Dam
The primary purpose of Wildlife Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Carlos & Kevin Woker (local government). It impounds the Trib Rayse Creek near Waltonville.
The dam stands 30 feet tall and stretches 660 feet across, creates a reservoir covering 36 acres, has a maximum storage capacity of 412 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 07/22/2024.
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Location
| State | Illinois |
| County | Washington |
| Nearest City | Waltonville |
| River/Stream | Trib Rayse Creek |
| Coordinates | 38.34597, -89.17887 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 660 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 412 acre-ft |
| Max Storage | 412 acre-ft |
| Normal Storage | 142 acre-ft |
| Surface Area | 36 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,561 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Carlos & Kevin Woker |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/22/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00400 |
| Federal ID | IL00400 |
| More Info | State Dam Safety Program |