Iowa vs Nebraska Oversize Load Rules

What changes for an oversize load between Iowa and Nebraska: legal height, pilot car triggers, height poles and travel hours.

I-80, reviewed October 2026

What changes at the Iowa and Nebraska border

Legal height
Nebraska allows 14 ft 6 in without a permit; Iowa stops at 13 ft 6 in. A load between the two is legal in Nebraska and needs a permit in Iowa.
First pilot car
Both states require the first pilot car at 12 ft 0 in wide.

Check one load against both states

Iowa

  • Oversize permit required
  • No width escort

Nebraska

  • Oversize permit required
  • No width escort

11 ft 0 in wide, 14 ft 0 in tall. Length is not checked here.

Side by side

Iowa and Nebraska oversize load rules compared
RuleIowaNebraska
Legal width8 ft 6 in8 ft 6 in
Legal height13 ft 6 in14 ft 6 in
Legal lengthSingle vehicle 45 ft; trailer or semitrailer 53 ft (57 ft lowboy for construction equipment); see Iowa Code 321.457 for combination limits.Semi-trailer 53 ft; semi plus trailer 65 ft; single vehicle 40 ft; combination overall 65 ft (excluding truck-tractor for trailer limits).
Gross weight80,000 lbs80,000 lbs
First pilot car at12 ft 0 in12 ft 0 in
Second pilot car atNot confirmed16 ft 0 in
Height pole at14 ft 6 in14 ft 6 in
Length escort at120 ft 0 in125 ft 0 in
Travel hours1/2 hour before sunrise to 1/2 hour after sunset. Night movement allowed (1/2 hr after sunset to 1/2 hr before sunrise) for loads up to 12 ft wide, 14'6" high, 100 ft long with legal axle weights and extra lighting/escort conditions.Over-dimensional moves: 30 minutes before sunrise to 30 minutes after sunset. Overweight-only moves may travel 24 hours, 7 days.
WeekendsNo general weekend ban; daylight movement 7 days a week except holiday weekends. Holiday weekend means the holiday falls on a Friday, Saturday, Sunday or Monday.No general weekend ban found in 408 NAC 3; daylight hours apply. Weekend holiday periods are restricted (see holiday).
Trip permit$10.00$25.00
Permit office515-237-3264 (Iowa DOT Motor Vehicle Division, Oversize/Overweight Permits)402-471-0034 (Nebraska Department of Transportation (NDOT) Motor Carrier Permit Section)

Go deeper

Iowa and Nebraska FAQs

Do Iowa and Nebraska require pilot cars at the same width?
Both states require the first pilot car at 12 ft 0 in wide.
Is the legal truck height the same in Iowa and Nebraska?
Nebraska allows 14 ft 6 in without a permit; Iowa stops at 13 ft 6 in. A load between the two is legal in Nebraska and needs a permit in Iowa.
Do I need a separate permit for each state between Iowa and Nebraska?
Yes. Oversize and overweight permits are issued by each state, so a move through both needs a permit from Iowa DOT Motor Vehicle Division, Oversize/Overweight Permits and one from Nebraska Department of Transportation (NDOT) Motor Carrier Permit Section, each with its own route, hours and escort conditions.
Which travel hours apply in Iowa and Nebraska?
Iowa: 1/2 hour before sunrise to 1/2 hour after sunset. Night movement allowed (1/2 hr after sunset to 1/2 hr before sunrise) for loads up to 12 ft wide, 14'6" high, 100 ft long with legal axle weights and extra lighting/escort conditions. Nebraska: Over-dimensional moves: 30 minutes before sunrise to 30 minutes after sunset. Overweight-only moves may travel 24 hours, 7 days. The conditions printed on the permit control.

Compiled from each state's published permit rules, reviewed October 2026. Not legal advice; the conditions printed on your permit control.