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Transportation Engineering

Phone: 970-256-4110
Fax: 970-256-4115
Email: sandin@gjcity.org

Photo by Kristin Winn

Truck Permits


The City of Grand Junction requires all Oversize/Overweight Trucks that are traveling on City Streets to contact the City for a Letter of Authorization (LOA).  Why Truck Routes? Grand Junction/Mesa County is the regional economic center for Western Colorado and Eastern Utah. Trucks are the primary delivery systems for the vast majority of consumer goods brought into our community. To address these concerns, a comprehensive plan was developed to identify a network of truck routes to support safe and efficient truck operations while satisfying the public need for adequate protection and separation.

The following City of Grand Junction LOA’s are available:

  • Single Trip LOA: An LOA that is valid for a single move, on a designated route(s) for Extra-legal Vehicle or Loads.
  • Multi Day LOA: An LOA that is valid for a specific time period on the designated route(s) for Extra-legal Vehicle or Loads.
  • Annual LOA: An LOA that is valid for one year from the date of issuance on the designated route(s) for Extra-legal Vehicle or Loads.

If any of the routes being used are within Mesa County or State of Colorado Department of Transportation’s jurisdiction, a permit must be acquired from those entities. A draft LOA will be issued to be provided to those entities. After acquiring the required permits and providing the permit numbers to the City, a final LOA will be issued.

Legal Dimensions and Maximum Weight Limit in Colorado
Colorado’s legal height is 13’ except where designated 14’6” by CDOT; maximum width is 8’6” and 80,000 lbs. combined gross vehicle weight on Interstate and 85,000 lbs. on Non-Interstate highways. There is no overall length requirement for truck tractor semitrailer combinations as long as the trailer does not exceed 57’4”. A combination of vehicles coupled together cannot exceed four units and is limited to 70’ in length.
Extra-Legal permits must be obtained prior to entry into Colorado or prior to movement of the vehicle/load.

Truck Route Brochure
Mesa County Truck Permits
CDOT Truck Permits
Motor Carriers Association 
Grand Junction/Mesa County Truck Routes

To apply for City of Grand Junction Letter of Authorization contact:
City of Grand Junction's Transportation Engineering
333 West Avenue, Building D
Grand Junction, CO 81501
970-244-1567
sandym@gjcity.org