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Idaho DOT Phone no.# (270) 908-9656
Idaho Overweight & Oversize Trucking Permits for Single Trip, Fuel, Overhang and Annual Permits
Idaho Oversize permits validity, Idaho Legal Dimensions, Routine Permits requirements, Escort/Pilot car information & Idaho oversize rules and Regulation all your needs
Idaho Oversize Permits Validity: These permits are valid for Five-days. Before entering with a heavy haul, it is necessary to secure permits.
Idaho Operating Time: You can travel half an hour before sunrise to after half an hour sunset including Saturday & sunday. Vehicles up to 10 feet wide, 110 feet long, or 14 feet 6 inches high can move around the clock on most routes, with lighting standards stated in the permission. Many routes also allow for daylight weekend travel.
Idaho Travel Restriction: Loads wider than 13 feet have restricted travel periods. In cities such as Boise, Caldwell, Coeur d’Alene, Idaho Falls, Lewiston, Nampa, Pocatello, Twin Falls, Garden City, and Chubbuck, movement is restricted from 6:30 am to 8:30 am, 11:30 am to 1:30 pm, and 4:00 pm to 6:00 pm. Load dimensions may affect holiday travel constraints.
Idaho Legal Dimension
Idaho Legal Length: A 53 feet semi-trailer is permitted on National Network & 48 feet trailer on non designated routes
Important: In Idaho, some two-lane highways remain undesignated, including US-12 from Lewiston to Spalding, US-93 from Salmon to Challis, and US-95 from Council to Grangeville.
Divisible loads and trailers longer than 48 feet are only permitted with an annually extra-length permit, and the tractor-trailer off-track measurement cannot exceed 5.5 feet (3 feet on some mountainous roads).
Non-divisible loads are covered by either a single or annually permit, regardless of the distance off-track.
Idaho legal Overhang rule: 4 feet for front & 15 feet for rear
Idaho Maximum Wide Load Without Permit: 8 feet 6 inches.
Idaho Legal Height: 14 feet
Idaho Legal Weight Limit: Gross weight 80,000lbs
Steering Axle 13,200lbs on 11 inches tire (600lbs per inch of tread width)
Single Axle 20,000lbs
Tandem Axles 34,000lbs
Tridem Axles It depends on distance of axles
Divisible loads above 80,000 pounds: You may exceed the 80,000-pound gross weight limit on state highways without a permit, as long as you comply to lawful axle/group weight limitations and are licensed for at least the amount of your gross weight. However, if you need to travel interstate, you must get an annual overweight authorization.
Idaho Routine Permit Limit
Idaho maximum Length with permit: 110 feet
Idaho wide load with permit: 16 feet
Idaho Maximum Height allowed with permit: 15 feet 6 inches
Idaho Weight Limit:
Steering Axle 13,200lbs on 11 inches tire (600lbs per inch of tread width)
Single Axle 22,000 to 33,000lbs
Tandem Axles 38,000 to 56,000lbs
Tridem Axles 70,500 to 48,000lbs
Group weight limitations are based on the maximum route rating, with interstate routes having the highest limits.
Idaho Superload Permit: Loads surpassing these dimension / sizes or weight are treated as superload.
Idaho Escort / Pilot Car Requirements and Information
Escort required for Length in Idaho: More than 100 feet required 1 escort/pilot car on 2 lane routes
More than 120 feet required 1 escort/pilot car on interstate
Escort Required for Overhang in Idaho: More than 25 feet rear overhang required 1 escort/pilot car on2 lane routes and interstate
Escort Required for Width in Idaho: More than 13 feet required 1 rear escort/pilot car on 2 lane routes
More than 14 feet required 2 escorts/pilot cars on 2 lane routes
More than 15 feet required 1 escort/pilot car on interstate
More than 16 feet required 3 escort/pilot cars on 2 lane routes and interstate
Escort Required for Height in Idaho: More than 16 feet required 1 escort/pilot car
Signal, lights and flags requirements for oversize load In Idaho:
Signs: The Idaho permit specifies that “Oversize Load” signs are necessary for all loads beyond a certain width.
Flags: Flags must be attached to all corners and extremities of over-width loads, including rear overhangs longer than four feet.
Light: Only one exemption is for overweight loads, which do not require signs or flags.
Additional details for loads in Idaho:
Removal of Blades and Buckets requirements in Idaho: When axle weight exceeds the permissible limit, all lift axles must be lowered to the ground. Blades, buckets, and other similar equipment can be separated and transported with the same load, depending on the route and conditions. The state will decide on a case-by-case basis.
Idaho Annual Permits & Single trip (IRP) OR Fuel (IFTA) Permits:
To obtain Idaho Single trip (IRP) OR Fuel (IFTA) and Annual Permits, the carrier must log into the state’s online permitting system, acknowledge the permit conditions, enter the vehicle and load information, select the travel dates, and provide the route details. Idaho Oversize Permits phone number (270) 908-9656 – Get your Idaho DOT permits by calling us.
Idaho Oversize Permits Cost or Fee
The cost of getting an oversize permit in Idaho depends on the type and period of the permit, however the estimated cost is:
Single trip permit: $33.
Overweight/Oversized Permit: For vehicles up to 16 feet in height, 16 feet in width, and 110 feet in length, there is a $33 administrative cost plus a road usage fee per mile.
Annual Oversize Permit: $43.
The annual Overweight/Oversize Permit: $128 and requires quarterly mileage reporting.
Permits can be obtained calling by us at (270) 908-9656 Oversize Permit Office.
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Idaho Overweight Permits
This permit is necessary when a vehicle exceeds the allowable weight restrictions imposed by an authority. It guarantees that the truck may move securely on roadways while causing no harm to infrastructure.
Idaho Overlength Permit
The permit is required for vehicles that exceed the standard-length limit. It enables the transportation of longer goods, such as huge beams or pipes, while maintaining their safety and legality.
Idaho Fuel/Trip Permit
Idaho Single trip permits are normally valid for one trip and is often necessary for trucks that do not have a regular IFTA (International fuel tax agreement) in place and IRP (International Registration Plan) registered. It enables the truck to drive through particular countries while remaining compliant with fuel tax requirements.
Idaho Overhang Permits
The permit is required when a load exceeds the rear or front of the vehicle. It guarantees that the overhanging weight is delivered securely, without endangering other road users.
Idaho Over-width Permits
A permit is necessary for vehicles that exceed the normal width limitations. It enables the transportation of larger loads, such as massive equipment or prefabricated constructions, while maintaining their safety and legality.
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FAQ'S Asked Questions about Oversize Permits
California oversize permits information including legal dimensions, routine permit limits, and escort requirements, operating times and restricted travel.
The phone number for Idaho oversize and overweight permits is (270) 908-9656
Length: A 53 feet semi-trailer is permitted on National Network & 48 feet trailer on non designated routes
Overhang: 4 feet for front & 15 feet for rear
Width: 8 feet 6 inches.
Height: 14 feet
Weight: Gross weight 80,000lbs
Steering Axle 13,200lbs on 11 inches tire (600lbs per inch of tread width)
Single Axle 20,000lbs
Tandem Axles 34,000lbs
Tridem Axles It depends on distance of axles
In Idaho, the widest load you can haul without permit in Idaho is 8 feet 6 inches
You can reach the Idaho Department of Transportation's (ITRPS DOT) Oversize Permits office at (270) 908-9656
Single trip permit: $33.
Overweight/Oversized Permit: For vehicles up to 16 feet in height, 16 feet in width, and 110 feet in length, there is a $33 administrative cost plus a road usage fee per mile.
In Idaho, the legal height is 14 feet
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