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Iowa DOT Motor Vehicle Division, Oversize/Overweight Permits

Iowa oversize load rules

Legal limits, pilot car requirements, travel restrictions, superload thresholds and permit fees for oversize and overweight loads in Iowa.

Legal limits without a permit

Width8′6″
Height13′6″
Length53′ trailer (57′ lowboys hauling construction equipment) · 45′ single vehicle
Weight80,000 lb gross

What Pro adds for Iowa

  • 4 escort rules with counts by width, height, length and road type
  • 4 travel restrictions: curfews, night, weekends, holidays
  • Superload thresholds and conditions
  • 2 published fee lines and permit lead time
  • Lane routing with miles per state and a cost breakdown

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Escort (pilot car) requirements

Pro members see the full Iowa escort rules:
  • 4 width, height and length thresholds with the escort count for each
  • Overhang and route-type conditions
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Travel restrictions

Pro members see the full Iowa travel restrictions:
  • 4 restrictions: curfews, night travel, weekends and holidays
  • Which ones apply to a given load size
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Superloads

Pro members see the full Iowa superload rules:
  • Exact thresholds and what the state requires past them
  • Lead times, route surveys and police escort conditions
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Permit fees

Pro members see the full Iowa permit fees:
  • 2 published fee lines with links to the fee schedule
  • Validity periods and add-on charges
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Common questions

When does a load need a pilot car in Iowa?

Answer available to members. Start free or sign in.

Which holidays restrict oversize travel in Iowa?

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Can oversize loads travel at night in Iowa?

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Sources

Planning reference. Permits carry their own conditions, and city and county roads have separate rules. Confirm with the Iowa DOT Motor Vehicle Division, Oversize/Overweight Permits before moving a load. Found an error? Report it.

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