Ridgeway Lake Dam
Ridgeway Lake Dam is an earth dam located in Crawford County, Illinois, built in 1964. It carries a Low hazard potential classification.
About Ridgeway Lake Dam
The primary purpose of Ridgeway Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by William J. Ridgeway (private). It impounds the Trib Big Creek near Eaton-offstream.
The dam stands 21 feet tall and stretches 440 feet across, and has a maximum storage capacity of 166 acre-feet. Completed in 1964, 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 10/14/2021.
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Location
| State | Illinois |
| County | Crawford |
| Nearest City | Eaton-offstream |
| River/Stream | Trib Big Creek |
| Coordinates | 39.09619, -87.82299 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 440 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 166 acre-ft |
| Max Storage | 166 acre-ft |
| Normal Storage | 76 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | WILLIAM J. RIDGEWAY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 10/14/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00880 |
| Federal ID | IL00880 |
| More Info | State Dam Safety Program |