Cherry Valley Lower Dam is an earth dam located in Winnebago County, Illinois, built in 1993. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 800 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 Cherry Valley Lower Dam
The primary purpose of Cherry Valley Lower 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 Village of Cherry Valley (local government). It impounds the Madigan Creek near Cherry Valley.
The dam stands 12 feet tall and stretches 800 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1993, the structure is 33 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 08/20/2024.
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Location
| State | Illinois |
| County | Winnebago |
| Nearest City | Cherry Valley |
| River/Stream | Madigan Creek |
| Coordinates | 42.23641, -88.97018 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 800 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 2 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 3,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Village of Cherry Valley |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/20/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50309 |
| Federal ID | IL50309 |
| More Info | State Dam Safety Program |