Mwrdgc Edsall Lake Dam is an earth dam located in Fulton County, Illinois, built in 1952. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 680 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 Mwrdgc Edsall Lake Dam
The primary purpose of Mwrdgc Edsall Lake 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 Metropolitan Water Reclamation District (local government). It impounds the Trib Big Sister Creek near Liverpool-offstream.
The dam stands 22 feet tall and stretches 680 feet across, and has a maximum storage capacity of 459 acre-feet. Completed in 1952, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 10/28/2022.
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Location
| State | Illinois |
| County | Fulton |
| Nearest City | Liverpool-offstream |
| River/Stream | Trib Big Sister Creek |
| Coordinates | 40.45877, -90.07092 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 680 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 459 acre-ft |
| Max Storage | 459 acre-ft |
| Normal Storage | 307 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Metropolitan Water Reclamation District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/28/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01224 |
| Federal ID | IL01224 |
| More Info | State Dam Safety Program |