Kenneth Berry Pond Dam is an earth dam located in Greene County, Illinois, built in 1965. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 356 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 Kenneth Berry Pond Dam
The primary purpose of Kenneth Berry 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 Kenneth Berry Est.;kenneth Berry Est. (private). It impounds the Coon Holler; Tr- Macoupin Cree near Spankey.
The dam stands 30 feet tall and stretches 356 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 152 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, 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 | Coon Holler; Tr- Macoupin Cree |
| Coordinates | 39.20901, -90.38847 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 356 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 152 acre-ft |
| Max Storage | 152 acre-ft |
| Normal Storage | 108 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 582 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Kenneth Berry Est.;kenneth Berry Est. |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Last Inspection | 08/22/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL40029 |
| Federal ID | IL40029 |
| More Info | State Dam Safety Program |