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Oversize Overweight OS/OW Superload
53' trailer length,
8'6" wide, and
14' high
80,000 lbs
Exceeding legal
weight and dimension
120' long,
18' wide, and
18' high
Single Trip =
Single Trip =
Single Trip =
Single Trip
$25.00 bridge
analysis + OW
fees if applicable
(see Superload
Overweight Fee
Superload Overweight Fee Chart
GVW Permit Fee
150,001-160,000 $30.00
160,001-170,000 $40.00
170,001-180,000 $50.00
180,001-190,000 $60.00
190,001 and over $70.00
When Escorts are Needed: # of Escorts:
On 2 Lane Highways
Width over 14'6" 1 front*
Width over 16' 2 (front and rear)
On 4 or more Lane Divided Highways
Width over 16' 1 rear
On All Highways
Width over 18' Official escort (unless
exempted by highway patrol)
Height over 18' 1 front (and written clearance
from utility companies)
Length over 120' 1 rear
Weight of any load that exceeds
normal permittable weights
1 or 2 may be required
**All pilot cars not registered in ND will be required to purchase temporary registration when
escorting intrastate moves 

*When operating in convoy, additional pilot cars are not required to provide that each unit convoy
keeps at least 1000' apart so traffic flow is not hampered.

Mobile Home or Modular units: On 2 Lane Highways
Width from 14'6" to 16' 1 front*
Width over 16' 2 (front and rear)
*In lieu of escort for width over 14'6" to 16', rotating or flashing amber lights may be used if mounted on vehicle and providing they are visible from front and rear for 500'
On 4 or more Lanes
Width over 16' 1 rear

Holiday Restrictions:

All overwidth load movements exceeding 16 feet shall not be authorized to travel on Saturday after 12 noon, all day Sunday, and on holidays of New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day.

Overhang Requirements:

No limit to front and technically no limit for the rear. However, if load is 48? or more in the rear, red flags are required during the day and lights are required at night. Overhang is included in the length so if overhang takes you over the legal length a permit will
be required.

Police Escorts:

$50.00 per hour  - $0.50 per mile.

Permits Valid For:

Single Trip Permits are valid for three (3) travel days.

Operating Time

Permitted loads are allowed travel from Sunrise to Sunset, seven (7) days a week.  Loads that are over 110' long and 16' wide may travel from Sunrise to Sunset, Monday through Friday and until 12:00 Noon on Saturday.  No Sunday travel at these dimensions or greater.  Loads that are permitted for Over-weight only are allowed travel twenty-four (24) hours a day, Seven (7) days a week.

Weekend Travel

Loads that are permitted for weight are allowed continuous travel.  Loads that are permitted for 110' long and 16' wide or more are allowed travel from Sunrise until 12:00 noon on Saturdays.  Loads permitted for these dimensions are restricted from travel on Sundays.

Divisible Loads

Divisible Loads will be permitted for over-dimensions up to 10' wide.  Divisible Loads that are permitted for Over-weight are not allowed.


Buckets, blades, counterweights, etc. can be hauled on the same overweight cargo if they are attached.  If attachments have been removed, or are detached, they must be shipped as a separate load when exceeding legal weight.

Restricted Travel

Travel is Restricted during inclement weather such as ice, snow, slush or frost.  Travel is restricted when high winds cause cargo to sway, swerve, or whip during travel.  If visibility is reduced due to fog, rain, sleet, mist, or smoke, permitted travel will be restricted.

Spring Weight Restrictions

During the spring breakup season or on otherwise posted highways, reductions in axle weight may be imposed.  If restrictions are imposed, notifications will be posted on this state page.

Superload Requirements

Loads or vehicles that are 120' long x 18' wide x 18' high and 150,000 lbs. or more are considered Super-loads.  When applying for a super-load permit, applicant must submit a letter stating that the load cannot be reduced in size, and cannot be moved with any other mode of transportation.  Permit application must also include a diagram of the vehicle and load, as well as a Certificate of Insurance.

Loads over 200,000 lbs. will require a drawing/diagram of truck, trailer, and cargo.   When an over-height load movement exceeds 18' high, written authority is required from the utility companies.  This is indicated on the permit, and is the responsibility of the carrier.

Super-load applications should be allowed up to five (5) days for processing and approval.