Mwrdgc Upper Acid Lake Dam is an earth dam located in Fulton County, Illinois, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 140 ft long, taller than 80% of U.S. dams with a recorded height. 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 Upper Acid Lake Dam
The primary purpose of Mwrdgc Upper Acid Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Metropolitan Water Reclamation District (local government). It impounds the Trib Big Creek-offstream near Depler Springs.
The dam stands 35 feet tall and stretches 140 feet across, and has a maximum storage capacity of 570 acre-feet. Completed in 1958, 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 09/29/2023.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Illinois |
| County | Fulton |
| Nearest City | Depler Springs |
| River/Stream | Trib Big Creek-offstream |
| Coordinates | 40.46699, -90.16893 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 140 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 570 acre-ft |
| Max Storage | 570 acre-ft |
| Normal Storage | 509 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Metropolitan Water Reclamation District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/29/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01219 |
| Federal ID | IL01219 |
| More Info | State Dam Safety Program |