Knox County Conservation Club Lake Dam is an earth dam located in Knox County, Illinois, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 275 ft long, taller than 76% 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 Knox County Conservation Club Lake Dam
The primary purpose of Knox County Conservation Club Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Knox County Conservation & Sportsmans Cl (private). It impounds the Trib Cedar Creek near Ellisville.
The dam stands 33 feet tall and stretches 275 feet across, and has a maximum storage capacity of 183 acre-feet. Completed in 1958, the structure is well into its service life at over 50 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 09/19/2022.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Illinois |
| County | Knox |
| Nearest City | Ellisville |
| River/Stream | Trib Cedar Creek |
| Coordinates | 40.72647, -90.34463 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 275 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 183 acre-ft |
| Max Storage | 183 acre-ft |
| Normal Storage | 109 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Knox County Conservation & Sportsmans Cl |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/19/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00903 |
| Federal ID | IL00903 |
| More Info | State Dam Safety Program |