Beil Lake 1 South Dam is an earth dam located in St. Clair County, Illinois, built in 1942. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 180 ft long, taller than 72% 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 Beil Lake 1 South Dam
The primary purpose of Beil Lake 1 South Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Charles Beil (private). It impounds the Trib Douglas Creek near Douglas.
The dam stands 31 feet tall and stretches 180 feet across, and has a maximum storage capacity of 122 acre-feet. Completed in 1942, 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 06/08/2020.
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Location
| State | Illinois |
| County | St. Clair |
| Nearest City | Douglas |
| River/Stream | Trib Douglas Creek |
| Coordinates | 38.45935, -90.05863 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 180 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Normal Storage | 102 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Charles Beil |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/08/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00954 |
| Federal ID | IL00954 |
| More Info | State Dam Safety Program |