Lake Chautauqua Lower Dam
Lake Chautauqua Lower Dam is an earth dam located in Fulton County, Illinois, built in 1920. It carries a Low hazard potential classification and has a poor condition assessment.
About Lake Chautauqua Lower Dam
The primary purpose of Lake Chautauqua Lower 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 Us Fish And Wildlife Service (federal). It impounds the See Note.
The dam stands 20 feet tall and stretches 31,000 feet across, creates a reservoir covering 2,820 acres, has a maximum storage capacity of 16,816 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1920, the structure is over a century 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/09/2019.
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Location
| State | Illinois |
| County | Fulton |
| River/Stream | See Note |
| Coordinates | 40.37500, -90.04166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 15 ft |
| Dam Length | 31,000 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 16,816 acre-ft |
| Max Storage | 16,816 acre-ft |
| Normal Storage | 9,078 acre-ft |
| Surface Area | 2,820 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 10,855 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/09/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL50402 |
| Federal ID | IL50402 |
| More Info | State Dam Safety Program |