Pregler Pond Dam is an earth dam located in Greene County, Illinois, built in 1961. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 272 ft long, taller than 68% 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 Pregler Pond Dam
The primary purpose of Pregler 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 Curtis Pregler;curtis Pregler (private). It impounds the Macoupin Creek near Spankey.
The dam stands 30 feet tall and stretches 272 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 43 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
The most recent inspection on record was 08/22/2025.
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Location
| State | Illinois |
| County | Greene |
| Nearest City | Spankey |
| River/Stream | Macoupin Creek |
| Coordinates | 39.21303, -90.40814 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 272 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 43 acre-ft |
| Max Storage | 43 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 145 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Curtis Pregler;curtis Pregler |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Last Inspection | 08/22/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL40030 |
| Federal ID | IL40030 |
| More Info | State Dam Safety Program |