2021 Idaho state DOT shipping laws, rules, regulations and limitations for oversize and heavy-haul trucking permits. Pilot car requirements.
Please share your knowledge of Idaho regulations with others below.
Idaho oversize permits, heavy-haul trucking companies and pilot cars.
Locate oversize, heavy-haul trucking companies and pilot cars:
Do I need a trucking permit? Legal load limits.
Idaho maximum load limits until a trucking permit is required:
Length: A 75’ length is the legal limit for any combined truck and trailer in transport.
Width: A maximum of 8’ 6” wide.
Height: A maximum of 14’
Weight: A maximum of 80,000 lbs. total (GVW) with no more than 14,000 lbs. on the steer axle and 20,000 lbs. on any other single axle.
Overhang: 4’ in front of trailer and no more than 10’ from the rear axle of trailer to the end of load.
Routine oversize and heavy haul trucking permits.
These maximum dimensions/weights are considered routine oversize or heavy-haul trucking permits in Idaho:
Length: 110’ on 2 lane roads and 115’ on 4 lane roads.
Weight: 5 axles 112,000 6 axles 118,000
Lights, safety flags and warning signs for heavy haul and oversize loads.
Required safety markings, safety flags, warning lights for heavy haul and oversize loads:
When pilot cars or escort vehicles are required.
Heavy-haul or oversize loads may be required to be accompanies by a escort vehicle or pilot car if:
Length: Over 100’ 2 Lanes requires 1 car. Over 115’ Interstate requires 1 car.
Width: Over 12’1” 2 Lanes requires 1 car., Over 15’1” 4 Lanes requires 1 car.
Height: Over 16’ requires 1 car.
Pilot cars/escort vehicle certifications and requirements.
Pilot car or escort vehicle mandatory operator certifications and vehicle requirements:
Legal travel times for oversize and heavy haul loads.
Travel times and restrictions for heavy-haul and oversize loads:
Travel permitted from ½ hour before sunrise to ½ hour after sunset. If 10’ wide or less, travel is permitted 24/7.
Idaho DOT contact information and notes.
Idaho DOT office and permit contact information:
How to apply for trucking permits:
Idaho Transportation Department
3311 W State St
800-662-7133 Phone within Idaho
Basic fee is $13.00
Permit is valid for 5 days
Idaho State Trucking information website: http://itd.idaho.gov/dmv
Port of Entry Information.
Hollister: 21 miles south of Twin Falls 208-3322-7844.
East Boise: 11 miles east of Boise 208-334-3272.
Marsing: 6 miles south of US 55/US 95 208-896-4814.
Lewiston: 1 mile east of Lewiston 208-799-4824.
Huetter: 2 miles east of Coer d’Alene 208-769-1551.
Bonner’s Ferry: (Moyle Jct.) Jct. of US 95 & US 2 208-267-2486.
Haugan: 15 miles east of state line 406-678-4257.
Sage Junction: 2 miles north of Roberts 208-228-3636.
Inkom: 8 miles south of Pocatello 208-775-3322.
Cottrell: 8 miles south of Twin Falls 208-349-5650.
Ports of entry references.