Zeigler Coal Lake 5 Dam is an earth dam located in Williamson County, Illinois, built in 1963. It carries a Significant hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 1,150 ft long. 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 Zeigler Coal Lake 5 Dam
Zeigler Coal Lake 5 Dam is a dam in Williamson, Illinois. The dam is owned by Zeigler Coal Company (private). It impounds the Trib Lake Creek near Johnston City.
The dam stands 18 feet tall and stretches 1,150 feet across, and has a maximum storage capacity of 194 acre-feet. Completed in 1963, the structure is well into its service life at over 50 years old.
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 10/18/2023.
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Location
| State | Illinois |
| County | Williamson |
| Nearest City | Johnston City |
| River/Stream | Trib Lake Creek |
| Coordinates | 37.82308, -88.89239 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 194 acre-ft |
| Max Storage | 194 acre-ft |
| Normal Storage | 176 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Zeigler Coal Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/18/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00088 |
| Federal ID | IL00088 |
| More Info | State Dam Safety Program |