The information of Wyoming Oversize Permits is provided solely for reference. Please carefully review your permits and provisions sheets, as we cannot guarantee the accuracy of the information. For questions or assistance, contact the number provided.

Wyoming DOT #:+1 307-777-43

PERMITS:

Wyoming oversize permits can be obtained from Ports of Entry by the driver (refer to the phone list at the bottom of this page). The driver is required to call the Port/Scale at least one hour before arrival and secure a clearance number. Failure to comply may result in a fine of up to $500 and a 24-hour shutdown. Typically, the permit is valid for either one day or one trip.

OPERATING TIME:

Travel is permitted from one-half hour before sunrise to one-half hour after sunset, inclusive of weekends. Additionally, loads not exceeding 10′ in width, with all other dimensions within legal limits, are allowed to travel at night on Interstate highways, provided proper lighting is in place.

RESTRICTED TRAVEL:

Holiday travel is generally allowed for loads not requiring escorts. However, Ports of Entry are closed during holidays, so it is advisable to check with the Port for pre-ordering permits if you plan to travel on a holiday.

LEGAL DIMENSIONS

Length:

60′ semi-trailer and load (including any overhang)

Width:

8’6″

Height:

14′

Weight:

80,000 – 117,000 Gross

  • Single – 20,000
  • Tandem – 36,000
  • Tridem – 42,000 (8’1″ to 8’5″ of spacing) 36,000 with 8′; 42,500 pounds with greater than 8’6″ spacings; and 43,500 with greater than 10′ of spacings

Divisible Loads Exceeding 80,000: 

You can exceed 80,000 gross without a permit on state and Interstate highways as long as you are legal on all axle weights and bridge and you are licensed for at least the amount of your gross weight.

Get Permit Now

Call (832) 454-5883 For Permit Consultation

ROUTINE PERMIT LIMITS

Length:

110′

Width:

18′

Height:

17′

Weight:

  • Single – 25,000
  • Tandem – 55,000
  • Tridem – 65,000
  • Register for up to 117,000 pounds to permit for that much or more

Loads in excess of these dimensions are considered as superloads.

Wyoming Oversize Permits

ESCORTS

On Interstate Highways:

Length:

At discretion of WY Highway Patrol

Overhang:

Over 25′ rear – 1 escort

Width:

Over 14′ – 1 escort (Additional escorts may be required by the Highway Patrol for extreme widths.)

Height:

As determined by WY Highway Patrol (not usually required)

On 2-Lane Highways:

Length:

Over 109′ – 2 escorts

Width:

Over 13’11” or if load extends past center lane at any time – 2 escorts

Height:

As determined by WY Highway Patrol (not usually required)

SIGNS, FLAGS & LIGHTS IN WYOMING OVERSIZE PERMITS :

All oversize loads/vehicles are mandated to display “Oversize Load” on both the front and rear. Flags must be positioned on projections extending beyond the sides of the trailer. Rear overhangs exceeding 4 feet should be flagged during the daytime or illuminated at night. Night running, if permitted, necessitates an amber clearance light on each front corner and a red clearance light on each rear corner of the load. Additionally, a revolving amber light, amber strobe, or two-way flashing amber lights, at least 4 inches in diameter, must be mounted on the vehicle, visible to both the front and rear.

SEASONAL LOAD RESTRICTIONS:

While no specific annual restrictions are mentioned, they may be imposed as necessary during the spring