Idaho State Trucking Permit Information
IDAHO
TRANSPORTATION DEPARTMENT
3311 W. STATE ST.
BOISE, IDAHO 83707-1129
Idaho State Trucking Permit Information Website for Overweight, Wide load & Oversize Transport:
Click Here
PHONE: 208-334-8420 Intrastate 800-662-7133
HOURS: MONDAY - FRIDAY 7:00 A.M. - 5:00 P.M
MOUNTAIN TIME
| LEGAL LIMITS | DESIGNATED HIGHWAY | ALL OTHER ROADS |
| Weight: | ||
| Single | 20,000 | 20,000 |
| Tandem | 34,000 | 37,000 |
| Tridum | 42,000 at 8' spacings | 42,500 |
| Gross Weight | *105,000 Federal Bridge Formula applies *With permit |
105,500 without permit |
| Width | 8'6" | 8'* |
| Height | 14' | 14' |
| Length: | ||
| Semi-trailer | 53'* |
48' |
OVERHANG 4' front, 15' rear from center last axle to end of load
PERMIT LIMITS
ROUTINE ISSUE
| Weight | ||
*Green Routes |
*Purple Routes |
|
| *Contact State | 46,000 | |
| Gross Weight: | ||
| *Contact State | ||
| Trunnion axles allowed on all routes but weight allowed is no more than regular tandem Routes are determined by the state and classified by weight. A "Route Map" can be obtained by calling the Idaho Transportation Department at 208-334-8420. Over 200,000 lbs considered a Super Load. |
||
| Length: | 110' | |
| Width: | 16' | |
| Height: | 15,6 | |
| If load exceeds any of these dimensions or weights, refer to the section on Super Loads. | ||
PERMITS VALID FOR:
Single trip permits are valid for five (5) consecutive days.
OPERATING TIME
One-half hour before sunrise to one-half hour after sunset, if 10’ wide, 110’ long or 14’6 high or less,
travel is allowed 24 hours a day, 7 days a week.
WEEKEND TRAVEL
Weekend travel is authorized on the majority of routes from one-half hour before sunrise until
one-half hour after sunset.
DIVISIBLE LOADS
May get a permit to exceed 80,000 lbs on interstate, but may not exceed legal axle weights and
must be registered for amount of weight hauled. An excessive weight permit may be obtained
for loads up to 105,500 lbs as long as the load does not exceed legal axle weights, this is for
reducible loads only.
EXCEPTIONS
Buckets, blades, etc may be taken off and hauled on the same trailer, it depends on the routes
and situation. The state will advise the permittee on a case by case basis.
INFORMATION NEEDED TO ORDER A WIDE LOAD, OVERSIZE AND HEAVY HAUL PERMIT
Applicant’s name and address, load description, vehicle description, tractor unit, trailer license, trailer
length, overall dimensions, total number of axles, overhang front and rear, gross weight, origin and
destination routes.
ESCORTS FOR WIDELOAD & OVERSIZED SHIPPING
| When Escorts are Needed: | #Escorts |
| On 2-Lane Highways (Black coded) | |
| Width over 12' | 1 Front |
| Width over 14' | 2 (Front & Rear) |
| Length over 100' | 1 Rear | On Interstate System: |
| Width over 15' | 1 Rear |
| Length over 120' | 1 Rear |
| Heigth over 16' | 1 Front |
| Width over 12' up to 14'8" 1 Rear | |
| Width 14'8"-16' | 2 (Front & Rear) |
| -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) 2 (Front & Rear) -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 |
|
Restricted Travel
Must contact local authorities to obtain permission to operate off of the state highway system, if over 12’ wide, 85’ long or 16’ high prohibited from moving between 6:30-8:30 a.m. and 4:00-6:00 p.m. in Boise, Caldwell, Coeur d’ Alene, Idaho Falls, Lewiston, Nampa, Pocatello, Twin Falls, Garden City and Chubbuck.
*CONTACT STATE FOR ADDITIONAL INFORMATION FOR ADDITIONAL INFORMATION FOR OVERSIZED, OVERWEIGHT AND WIDE LOAD SUPER LOADS.
SPRING WEIGHT RESTRICTIONS
Routes may be restricted during the spring and speeds may be reduced. Contact the state during the
spring for the current restrictions.
*CONTACT STATE FOR ADDITIONAL INFORMATION ON RESTRICTED TRAVEL FOR WIDELOADS, OVERSIZED AND OVERWEIGHT PERMITTED CARGO.
Overweight, Oversized & Wideload SuperLoads
Applicant must submit written statement on the necessity and feasibility of the proposed movement. A schematic drawing showing axle placement, distance between axles and distribution of gross weight on axles. Any load over 16’ wide, 16’ high, 120’ long must be approved by the district through which the load is traveling.
CONTACT STATE FOR ADDITIONAL INFORMATION FOR OVERSIZED, OVERWEIGHT AND WIDELOAD SUPERLOADS





