STATE PERMIT GUIDE

Illinois: plan the permit work.

Check the published facts below. Fields still awaiting verification are clearly marked.

Plan a move through Illinois Official permit information ↗

Dimensions & weight

General loaded width: 102 in
Interstate and designated Class I/II or local roads; other roads and exceptions need separate review.
Verified 2026-09-19 · Official source · 15-102(e)
General loaded height: 162 in
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · 15-103
Configuration-specific length: Confirmation required
Gross combination weight: Confirmation required
Axle / bridge / tire limits: Confirmation required
Load overhang: Confirmation required

Permits & costs

Single-trip permit: Confirmation required
Annual permit: Confirmation required
Validity: Confirmation required
Published lead time: Confirmation required
Special / superload review: Confirmation required
State permit fee: Legal-weight dimensional categories span $12–$125 by size and mileage. This is not an overweight quote; those charges use a different schedule. Verified 2026-09-19 · Official source · Table 1

Escorts & markings

Pilot cars / escorts: One civilian escort above 14 ft 6 in width or height, or 110 ft length. Combined triggers require two; larger loads can require three.
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · p5, Provision B
Police escort: State Police review above 18 ft width or height, or 200 ft length; bridge review may also require it.
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · p5, Provision B
Height pole: Confirmation required
Signs / flags / lights: Signs above 10 ft wide, 14 ft 6 in high or 75 ft long; oversize extremities need red flags at least 18 inches square.
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · p6

When and where to move

Travel hours: Confirmation required
Weekend movement: Confirmation required
Holiday movement: Check current ITAP holiday dates and permit-specific movement conditions before travel.
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · p1
Seasonal restrictions: Confirmation required
Weather restrictions: Confirmation required
Local / toll jurisdictions: IDOT permits cover state-jurisdiction roads. Verify city, county and toll-road coverage for the actual route.
Reviewed against the cited official source; exceptions and permit conditions apply.
Verified 2026-09-19 · Official source · Permit type and compliance

Plan the details

Oversize & overweight permits: what shippers need to know →How to plan a multi-state oversize load →What makes a load oversize or overweight? →Pilot cars and escorts: when are they required? →How oversize permit costs are calculated →How to measure an oversize load before requesting permits →Oversize load travel hours, weekends and holidays →Route surveys, bridge clearances and permitted routes →State permits vs city and local permits →What can make an oversize permit invalid? →

Requirements and fees can change. Final permits, routes and movement requirements are determined by the applicable issuing authorities. State permits may not cover local or toll roads.