Weinmister Pond Dam is an earth dam located in Mercer County, Illinois, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 210 ft long, taller than 62% 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 Weinmister Pond Dam
The primary purpose of Weinmister Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by P.d. Weinmeister;p.d. Weinmeister (private). It impounds the Tr- Edwards River near Aledo.
The dam stands 28 feet tall and stretches 210 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 25 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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 05/02/2025.
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Location
| State | Illinois |
| County | Mercer |
| Nearest City | Aledo |
| River/Stream | Tr- Edwards River |
| Coordinates | 41.25384, -90.67023 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 210 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 25 acre-ft |
| Max Storage | 25 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 97 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | P.d. Weinmeister;p.d. Weinmeister |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/02/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL40101 |
| Federal ID | IL40101 |
| More Info | State Dam Safety Program |