Waukegan Station East Ash Pond Dam
Waukegan Station East Ash Pond Dam is an earth dam located in Lake County, Illinois, built in 1979. It carries a Significant hazard potential classification.
About Waukegan Station East Ash Pond Dam
Waukegan Station East Ash Pond Dam is a dam in Lake, Illinois. The dam is owned by Midwest Generation, Llc (public utility). It impounds the Trib Lake Michigan near Waukegan.
The dam stands 20 feet tall, creates a reservoir covering 11 acres, and has a maximum storage capacity of 120 acre-feet. Completed in 1979, the structure is 47 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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/08/2024.
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Location
| State | Illinois |
| County | Lake |
| Nearest City | Waukegan |
| River/Stream | Trib Lake Michigan |
| Coordinates | 42.37759, -87.81305 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 92 acre-ft |
| Surface Area | 11 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | MIDWEST GENERATION, LLC |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 10/08/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50696 |
| Federal ID | IL50696 |
| More Info | State Dam Safety Program |