Lake Law Dam
Lake Law Dam is an earth dam located in DuPage County, Illinois, built in 1971. It carries a Significant hazard potential classification.
About Lake Law Dam
The primary purpose of Lake Law Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by U. S. Department Of Energy (federal). It impounds the Ferry Creek near Warrensville.
The dam stands 20 feet tall and stretches 500 feet across, and has a maximum storage capacity of 1,500 acre-feet. Completed in 1971, 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 05/07/2024.
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Location
| State | Illinois |
| County | DuPage |
| Nearest City | Warrensville |
| River/Stream | Ferry Creek |
| Coordinates | 41.83721, -88.22221 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 500 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 1,500 acre-ft |
| Max Storage | 1,500 acre-ft |
| Normal Storage | 1,200 acre-ft |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | U. S. DEPARTMENT OF ENERGY |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 05/07/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01166 |
| Federal ID | IL01166 |
| More Info | State Dam Safety Program |