Old Five Lake Dam is an earth dam located in Knox County, Illinois, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 300 ft long, taller than 80% 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 Old Five Lake Dam
The primary purpose of Old Five Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Midland Coal Company (private). It impounds the Trib Littlers Creek near London Mills.
The dam stands 35 feet tall and stretches 300 feet across, and has a maximum storage capacity of 40 acre-feet. Completed in 1945, 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 09/19/2022.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Illinois |
| County | Knox |
| Nearest City | London Mills |
| River/Stream | Trib Littlers Creek |
| Coordinates | 40.72447, -90.15333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 300 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 40 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Midland Coal Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/19/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00448 |
| Federal ID | IL00448 |
| More Info | State Dam Safety Program |