Oversize/Overweight Permit Application

Information for Extra-Legal Vehicles Traveling on E-470

A commercial vehicle requesting to travel on E-470 that meets Colorado Department of Transportation (CDOT) definition of an Extra-Legal vehicle or load must obtain an Oversize/Overweight Permit issued by E-470 Public Highway Authority.

  • Apply for and carry the E-470 Public Highway Authority Oversize/Overweight Permit issued for the trip.
  • A vehicle that exceeds CDOT’s defined size and weight restrictions may not travel on E-470 during the hours of 6-9 a.m. and 3-7 p.m., and during inclement weather.
  • Pilot car is required for a vehicle 12′ wide and over.
  • If a vehicle’s Gross Vehicle Weight is more than 80,000 pounds a detailed description of axle configuration and weight is required.
  • A vehicle that exceeds CDOT’s defined size and weight restrictions unable to maintain a minimum speed of 50 mph on E-470 must travel between 12 a.m. and 5 a.m.
  • E-470 is not a designated HAZMAT route. For more information, contact Colorado State Patrol Hazardous Materials Section at (303) 273-1900.
  • A lowboy must be used to transport heavy construction equipment.

Permit Types Defined
OS Single – Valid for one trip only. Start and end date and time are required entries.

OS 6 months – Ideal for a vehicle whose specifications do not change from trip to trip: no changes in tractor and trailer that may alter width, length, or height; GVW can’t exceed 80,000 lbs. Valid for 6 months..



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