State guides / Illinois
Illinois oversize escort requirements
When a load over legal width, height, length or weight needs pilot cars or a police escort in Illinois, on two-lane and divided highways.
From the state's published tables; some cases are set per permit
| Load | Two-lane highway | Divided highway | Rule |
|---|---|---|---|
| Width12'6" wide | None | None | No escort trigger at this size |
| Width14'6" wide | None | None | No escort trigger at this size |
| Width16'6" wide | 2 front + 1 rear | 2 front + 1 rear | width >16' or length >145' or height >18' — 3 civilian escorts |
| Width18'6" wide | 2 front + 1 rear+ police | 2 front + 1 rear+ police | width >16' or length >145' or height >18' — 3 civilian escorts; Illinois State Police escort required — width >18', length >200', or height >18' |
| Height15'6" high | 1 front | 1 front | height >14'6" — 1 escort (leads, height pole) |
| Height16'6" high | 1 front | 1 front | height >14'6" — 1 escort (leads, height pole) |
| Length110' overall | None | None | No escort trigger at this size |
| Length130' overall | 1 front | 1 front | length >110' — 1 escort |
| Weight200,000 lb gross | None | None | No escort trigger at this size |
Each example changes one dimension from a legal 8′6″ wide, 13′6″ high, 75′, 80,000 lb tractor-trailer. Real moves often combine several. “Set by permit” means Illinois decides that case on the permit itself. Permits can add conditions of their own, so check yours before you move.
Price the whole Illinois move in one quote.
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