Consol/rend Lake Mine/slurry Impoundment 1
Consol/rend Lake Mine/slurry Impoundment 1 is an earth dam located in Jefferson County, Illinois, built in 1993. It carries a High hazard potential classification.
About Consol/rend Lake Mine/slurry Impoundment 1
Consol/rend Lake Mine/slurry Impoundment 1 is a dam in Jefferson, Illinois. The dam is owned by Murray Energy (private). It impounds the Trib Rend Lake near Ewing.
The dam stands 75 feet tall and stretches 8,500 feet across, and has a maximum storage capacity of 4,770 acre-feet. Completed in 1993, the structure is 33 years old.
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 05/27/2025.
At 75 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 | Jefferson |
| Nearest City | Ewing |
| River/Stream | Trib Rend Lake |
| Coordinates | 38.14519, -89.02704 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 75 ft |
| Dam Height | 75 ft |
| Dam Length | 8,500 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 4,770 acre-ft |
| Max Storage | 4,770 acre-ft |
| Normal Storage | 3,937 acre-ft |
| Max Discharge | 109 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | MURRAY ENERGY |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 05/27/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50164 |
| Federal ID | IL50164 |
| More Info | State Dam Safety Program |