Roachtown Lake Dam
Roachtown Lake Dam is an earth dam located in St. Clair County, Illinois, built in 1963. It carries a Low hazard potential classification.
About Roachtown Lake Dam
The primary purpose of Roachtown Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by St. Clair County Anglers (private). It impounds the Trib Doglas Creek near Douglas.
The dam stands 21 feet tall and stretches 330 feet across, and has a maximum storage capacity of 164 acre-feet. Completed in 1963, 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 08/26/2020.
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Location
| State | Illinois |
| County | St. Clair |
| Nearest City | Douglas |
| River/Stream | Trib Doglas Creek |
| Coordinates | 38.46245, -90.04612 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 330 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 164 acre-ft |
| Max Storage | 164 acre-ft |
| Normal Storage | 98 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ST. CLAIR COUNTY ANGLERS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 08/26/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00366 |
| Federal ID | IL00366 |
| More Info | State Dam Safety Program |