Levees / By county / Carroll County, IL
Levee systems in Carroll County, IL
3 systems on the federal register here, with 103 people recorded behind them.
| System | Location | Accreditation | People | Length |
|---|---|---|---|---|
| Johnson Creek Levee and Drainage System - West | Thomson, Carroll County, Illinois | Non-Accredited | 61 | 6.05 miles |
| Johnson Creek Levee and Drainage System - East | Thomson, Carroll County, Illinois | Non-Accredited | 40 | 6.49 miles |
| Upper Mississippi River National Wildlife and Fish Refuge Levee | Savanna, Carroll County, Illinois | Non-Accredited | 2 | 8.11 miles |
Source: USACE National Levee Database, refreshed 2026-09-10.