Williamson Energy/pond Creek Mine/refuse Disposal Facility
Williamson Energy/pond Creek Mine/refuse Disposal Facility is a rockfill dam located in Williamson County, Illinois. It carries a High hazard potential classification.
About Williamson Energy/pond Creek Mine/refuse Disposal Facility
Williamson Energy/pond Creek Mine/refuse Disposal Facility is a dam in Williamson, Illinois. The dam is owned by Williamson Energy, Llc (private). It impounds the Trib Pond Creek.
The dam stands 88 feet tall and stretches 6,769 feet across, and has a maximum storage capacity of 3,155 acre-feet.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 03/18/2025.
At 88 feet, this dam is taller than 97% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Illinois dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Williamson |
| River/Stream | Trib Pond Creek |
| Coordinates | 37.84841, -88.82287 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 88 ft |
| Dam Height | 88 ft |
| Dam Length | 6,769 ft |
Storage & Hydraulics
| NID Storage | 3,155 acre-ft |
| Max Storage | 3,155 acre-ft |
| Normal Storage | 3,000 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | WILLIAMSON ENERGY, LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 03/18/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50624 |
| Federal ID | IL50624 |
| More Info | State Dam Safety Program |