Lawrenceville Sewage Basin Dam
Lawrenceville Sewage Basin Dam is an earth dam located in Lawrence County, Illinois, built in 1990. It carries a Low hazard potential classification.
About Lawrenceville Sewage Basin Dam
Lawrenceville Sewage Basin Dam is a dam in Lawrence, Illinois. The dam is owned by City Of Lawrenceville (local government). It impounds the Trib Embarass River near Lawrenceville.
The dam stands 17 feet tall and stretches 2,905 feet across, and has a maximum storage capacity of 202 acre-feet. Completed in 1990, the structure is 36 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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/20/2025.
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Location
| State | Illinois |
| County | Lawrence |
| Nearest City | Lawrenceville |
| River/Stream | Trib Embarass River |
| Coordinates | 38.72737, -87.67209 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 2,905 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 202 acre-ft |
| Max Storage | 202 acre-ft |
| Normal Storage | 18 acre-ft |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | CITY OF LAWRENCEVILLE |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 06/20/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50102 |
| Federal ID | IL50102 |
| More Info | State Dam Safety Program |