Lake Lynnhurst Dam is an earth dam located in Peoria County, Illinois, built in 1940. It carries a Low hazard potential classification.
Dam profile
NID height · 44 ft44 ft tall and 530 ft long, taller than 89% 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 Lake Lynnhurst Dam
The primary purpose of Lake Lynnhurst Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Lynnhurst Owners Association (private). It impounds the Trib Kickapoo Creek near Peoria.
The dam stands 44 feet tall and stretches 530 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 159 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 05/15/2024.
At 44 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Illinois |
| County | Peoria |
| Nearest City | Peoria |
| River/Stream | Trib Kickapoo Creek |
| Coordinates | 40.77195, -89.66838 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 530 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 159 acre-ft |
| Max Storage | 159 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 660 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Lynnhurst Owners Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/15/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00297 |
| Federal ID | IL00297 |
| More Info | State Dam Safety Program |