Super Heavy Single-Trip Permits

You must obtain an oversize/overweight permit from the Texas Department of Transportation’s Motor Carrier Division if your vehicle and/or load exceed Texas legal size and weight limits.

Super Heavy single-trip permits are available for the movement of vehicles and loads which exceed 254,300 pounds (total gross weight), or exceed the maximum permittable weight on any axle or axle group, or exceed 200,000 pounds with less than 95 feet of axle spacing.

How Do I Apply?

Submit form 305, a written request with the exact beginning and ending points in relation to a state highway, a copy of the signed contract or purchase order between the shipper and manufacturer/purchaser, and a loading diagram by facsimile (512) 465-3549 or by mail. Mail application packets to TxDOT-MCD, 125 E. 11th, Austin, Texas 78701.

Loading diagrams must specify the following:

• number of axles
• number of tires on each axle
• tire size on each axle
• distance between each axle
• tare and gross weight for each axle group
• transverse spacing of each set of dual wheels
• load's center of gravity
• distance from the center of gravity to the center of the front bolster
• distance from the center of gravity to the center of the rear bolster
• distance from the center of the front bolster to the center of the fifth wheel of the truck
• distance from the center of the rear bolster to the center of the closest axle
• tire pressure
• weight per lateral inch

Any other measurements as may be needed to verify that the weights of the over dimension load is adequately distributed among the various axle groups in the amounts shown on the loading diagram.

Applications and supporting documentation must be sent six to eight weeks before the permit is required, unless an existing pre-approved route is on file.

Motor Carrier Registration Requirements

Texas motor carrier registration or Unified Carrier Registration (UCR) is required.

Vehicle Registration Requirements

Proper vehicle registration must be obtained through TxDOT's Vehicle Titles and Registration Division or your county tax office. Vehicles must be registered in accordance with Transportation Code, Chapter 502.

Fees

Fees for single-trip permits for super heavy vehicles and loads are shown in the following table.

Fees are payable by:

• MasterCard, VISA, Discover, American Express ($1 service charge);
• PAC-Permit Account Card; or
• funds deposited in a pre-established escrow account.

All fees are non-refundable.

Other Information

Front and rear escorts are required for all movements transported under this permit. See general escort requirements and equipment requirements for both permitted vehicles and escort vehicles.

It is the responsibility of the permit holder to contact utility companies, telephone companies, television cable companies, or other entities when it is necessary to raise or lower an overhead wire, traffic signal, street light, cable, sign, or other overhead obstruction. The permit holder is responsible for providing the advance notice and coordination required by each entity. See utility company notification requirements under Texas Health and Safety Code, Chapter 752, relating to Temporary Clearance of Lines.