Springfield Coal/orient 4/east Slurry Imp
Springfield Coal/orient 4/east Slurry Imp is an earth dam located in Williamson County, Illinois, built in 1985. It carries a High hazard potential classification.
About Springfield Coal/orient 4/east Slurry Imp
Springfield Coal/orient 4/east Slurry Imp is a dam in Williamson, Illinois. The dam is owned by Springfield Coal Company, Llc (private). It impounds the Trib Lake Creek near Pittsburg.
The dam stands 66 feet tall and stretches 5,300 feet across, and has a maximum storage capacity of 1,745 acre-feet. Completed in 1985, the structure is 41 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 10/31/2023.
At 66 feet, this dam is taller than 96% 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 |
| Nearest City | Pittsburg |
| River/Stream | Trib Lake Creek |
| Coordinates | 37.79076, -88.86279 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 66 ft |
| Dam Height | 66 ft |
| Dam Length | 5,300 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 1,745 acre-ft |
| Max Storage | 1,745 acre-ft |
| Normal Storage | 1,584 acre-ft |
| Max Discharge | 11 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | SPRINGFIELD COAL COMPANY, LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 10/31/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50059 |
| Federal ID | IL50059 |
| More Info | State Dam Safety Program |