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Idaho Oversize Permits Online

Idaho Oversize Permits Online

Transportation Department

Address: 3311 W. State St. Boise, Idaho 83707-1129

Contact: (208) 334-8420 / 1 (800) 662 – 7133 (Intrastate)

Hours: 7:30 A.M. – 5:00 P.M. (MT)


Single trip permits are valid for five (5) consecutive days.


Steering Axle12,000
Tridum (wheelbase more than 8 ft but not more than 13)53,000

Gross Weight: 160,000

Length: 110’

Width: 16’

Height: 15’6”

When Escorts Are Needed:

On 2-Lane Highways (Black coded):        # of Escorts

Width over 12’1 Front
Width over 14’2 (Front & Rear)
Length over 100’1 Rear
Height over 16’1 Front

On Interstate System:

Width over 15’1 Rear
Length over 120’1 Rear
Height over 16’1 Front
A 3rd escort (in advance) may be required with load of such extreme dimensions for tour of travel as to require holding opposing traffic at turnouts and intersections 

Oversize loads which individually would require an escort may travel in convoy (not over 4 loads and not mobile homes) 

  • Maximum width of units in convoy limited to 14’6” wide or maximum length of 100’ on red or 120’ on interstate system or on black-coded routes on map
  • Maximum width of units in convoy limited to 12’6” widths or maximum of 100’ length on red coded routes
2 (Front & Rear)


Vectra Heavy Haulers, a company for goods transport with a formidable reputation, will ensure secure and trusted delivery services according to your needs to Oregon as well. We follow all the regulations and permits for transporting goods across federal, state, and local jurisdictions. For more regulatory information on Idaho Overweight (OSOW), transportation permits.