Utah vs Wyoming Oversize Load Rules

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

I-80, reviewed October 2026

What changes at the Utah and Wyoming border

Legal height
Both states use the same legal height, 14 ft 0 in.
First pilot car
Utah requires a pilot car from 14 ft 0 in wide; Wyoming waits until 15 ft 0 in. A load between those widths needs an escort in Utah only.

Check one load against both states

Utah

  • Oversize permit required
  • No width escort

Wyoming

  • Oversize permit required
  • No width escort

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

Side by side

Utah and Wyoming oversize load rules compared
RuleUtahWyoming
Legal width8 ft 6 in8 ft 6 in
Legal height14 ft 0 in14 ft 0 in
Legal lengthSingle motor vehicle 45 ft; semitrailer 53 ft; double trailer combination 61 ft trailer length (no overall limit on the tractor); truck-trailer and other combinations 65 ft (Admin Rule R909-2-4).Single unit or semitrailer 60 ft; tractor with semitrailer/trailer combination 81 ft (48 ft semitrailer + 40 ft trailer max); any other combination 85 ft; maximum three single vehicles in a combination.
Gross weight80,000 lbs80,000 lbs
First pilot car at14 ft 0 in15 ft 0 in
Second pilot car at16 ft 0 inNot confirmed
Height pole atNot confirmedNot confirmed
Length escort at120 ft 0 in110 ft 0 in
Travel hoursLoads over 14'6" high, 12 ft wide, 105 ft long or 10 ft overhang are daylight only; night travel allowed up to 12 ft wide (secondary) or 14 ft (interstate), with pilots as required. Curfew Mon-Fri 6-9 am and 3:30-6 pm for loads over 10 ft wide, 105 ft long or 14'6" high on the Wasatch Front highways listed in R909-2-12.Daylight hours only, except legal-height, permitted, signed and lighted: single units 60-75 ft, combinations under 100 ft where the single unit exceeds 60 ft, and loads up to 10 ft wide on Interstates may move at night.
WeekendsNo general weekend restriction in R909-2; only holiday weekends are restricted (Monday holidays: Friday 2 pm to midnight restricted, normal travel Saturday sunrise through Sunday midnight, restriction resumes 12:01 am Monday).No general weekend restriction stated on the WHP commercial carrier page; holiday weekends are restricted for loads needing escorts.
Trip permitNot confirmed$20.00
Permit officeUDOT Motor Carrier Division(307) 777-4376 (Wyoming Highway Patrol / WYDOT Commercial Carrier (Permits))

Go deeper

Utah and Wyoming FAQs

Do Utah and Wyoming require pilot cars at the same width?
Utah requires a pilot car from 14 ft 0 in wide; Wyoming waits until 15 ft 0 in. A load between those widths needs an escort in Utah only.
Is the legal truck height the same in Utah and Wyoming?
Both states use the same legal height, 14 ft 0 in.
Do I need a separate permit for each state between Utah and Wyoming?
Yes. Oversize and overweight permits are issued by each state, so a move through both needs a permit from UDOT Motor Carrier Division and one from Wyoming Highway Patrol / WYDOT Commercial Carrier (Permits), each with its own route, hours and escort conditions.
Which travel hours apply in Utah and Wyoming?
Utah: Loads over 14'6" high, 12 ft wide, 105 ft long or 10 ft overhang are daylight only; night travel allowed up to 12 ft wide (secondary) or 14 ft (interstate), with pilots as required. Curfew Mon-Fri 6-9 am and 3:30-6 pm for loads over 10 ft wide, 105 ft long or 14'6" high on the Wasatch Front highways listed in R909-2-12. Wyoming: Daylight hours only, except legal-height, permitted, signed and lighted: single units 60-75 ft, combinations under 100 ft where the single unit exceeds 60 ft, and loads up to 10 ft wide on Interstates may move at night. 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.