Colorado Oversize/Overweight Permits

Colorado Overweight PermitsPermit Types

Obtain Colorado oversize/overweight permits by calling (888) 799-8858.

1.Single-Trip Permits

Valid for 5 days.

  • Oversize Permit
  • Overweight Permit
  • Oversize/Overweight Permit
  • Hazmat Permit
  • Chapter 6 Special Permit – For loads and vehicles over 200,000 lbs. up to 500,000 lbs. Requires 2 escort cars.
  • Superload Permit – For loads and vehicles over 500,000 lbs., or has a double dolly and is greater than 15′ in width.
  • Non-Interstate OWD 2/3 Single-Trip Permit – Max 97,000 lbs. Must have a minimum of 2 axles but not more than 3 axles on the trailer. Can travel on non-Interstate highways only. For divisible loads only.
  • Non-Interstate OWD Quad Single-Trip Permit – Max 110,000 lbs. The vehicle or the trailer must have a quad-axle grouping. Can travel on non-Interstate highways only. For divisible loads only.

Multi-Trip Permits

  • 6 Months Non-Interstate Overweight Divisible 2/3 – Max 97,000 lbs., allowed to travel on US and State Highways. For divisible loads only.

Annual Permits

  • Oversize – Max dims: 17′ width, 16′ height, 130′ length on 4 lanes, 120′ on non-mountainous 2 lanes, 110′ on mountainous 2 lanes, 25′ front overhang, 30′ rear overhang.
  • Overweight – Max 200,000 lbs. weight.
  • Oversize/Overweight – Max dims: 17′ width, 16′ height, 130′ length on 4 lanes, 120′ on non-mountainous 2 lanes, 110′ on mountainous 2 lanes, 25′ front overhang, 30′ rear overhang, 200,000 lbs. weight.
  • Oversize Utility
  • Longer Vehicle Combination – A longer vehicle combination shall not have more than 3 cargo units, fewer than 6 axles and not more than 9 axles. The heaviest gross weight must be hauled in the first semitrailer. Must travel on designated highways.
  • Longer Vehicle Combination Overweight Divisible – Max 110,000 lbs.
  • 2/3 Divisible Overweight Non-Interstate – Max 97,000 lbs. Must have a minimum of 2 axles but not more than 3 axles on the trailer. Can travel on non-Interstate highways only. For divisible loads only.
  • Quad Divisible Overweight Non-Interstate – Max 110,000 lbs. The vehicle or the trailer must have a quid axle grouping. Can travel on non-Interstate highways only. For divisible loads only.
  • Annual Hazmat
  • Annual Nuclear

Company Fleet Permits

For companies with oversize and/or overweight permits for two or more vehicles, we can issue permits for the entire fleet. This means that all annual permits issued to one company will expire on the same day. This will streamline renewal processing dates for the company.

  • Company Fleet
  • Annual Company Fleet
  • 2/3 Divisible Overweight Non-Interstate Fleet
  • Quad Divisible Overweight Non-Interstate Fleet
  • Non-Interstate Overweight Divisible 2/3 Quad Fleet
  • Utility Fleet
  • Longer Vehicle Combination Fleet


Operating Time: Sunrise to Sunset travel is allowed for commercial vehicles with loads up to 12′ wide. Night travel must have proper lighting (see Signs, Flags, & Lights, below). Vehicle loads over 12′ wide but not over 14′ wide require an escort for travel during night routes.

LEGAL DIMENSIONS

Width 8’6″
Length
  • Self-propelled unit – 45′
  • 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.
Height
  • 14′6″ on designated highways
Weight
  • 85,000 lbs. on Non-Interstate
  • 80,000 Ibs. on Interstate
  • Steer – 20,000 lbs. on All Highways
  • Single – 20,000 lbs. on All Highways
  • Tandem – 36,000 lbs. on Interstate
  • Tandem – 40,000 Ibs. on Non-Interstate
  • Tridem – 54,000 lbs.
Overhang
  • Front: 4′ or less
  • Rear: 10′ or less
  • Over 4′ rear needs lighting for night running (see Signs, Flags, & Lights, below)

 

PERMIT LIMITS

Width 17′
Length 130′ (4-lane highways)
Height 16′ over 14’6″ (requires a survey)
Weight
  • Single – 22,000-27,000 lbs.
  • Tandem – 42,000-50,000 lbs.
  • Tridem – 55,000-65,000 lbs.
  • Quad – up to 72,000 max

(Maximum permitted weights depend on route classification and axle spacings)

 
*Loads that are over 17′ wide or 200,000 GVW are considered “Superloads“


Escorts/Pilots

Width over 13′ 1 escort car in the front
Width over 15′ 2 escort pilot vehicles or 1 front escort pilot vehicle and flashing yellow light in the back (front and rear).
Length over 85′ on certain portions of 2-lane and 4-lane highways 1 escort pilot vehicle in the front
Length over 110′ on 2 lane

Length over 115′ on 4 or more lane

 1 escort pilot vehicle in the front
Overhang more than 25′ 1 escort pilot vehicle
Height over 16′ 1 in front with a high pole

 

Escorts/Pilots on 4 or more Lane Highways

Width over 13′ to 15′ 1 rear escort pilot vehicle or one flashing yellow light in the back
Width over 15′ 2 escort pilot vehicles, or 1 front escort pilot vehicle in the front and flashing yellow light in the back
Length over 85′ 1 escort pilot vehicle
Length over 115′ 1 escort pilot vehicle
Height over 16′ 1 escort pilot vehicle with a high pole
Height over 17’6″ route survey and utility clearance letters also required

SIGNS, FLAGS, & LIGHTS

“Oversize Load” signs are required front and rear for all oversize loads. They are not required and should not be used for overweight-only loads. Flags are required at all four corners of any extremity for wide and over-length loads, and at the end of load projections greater than 4 feet.

RESTRICTED TRAVEL

The curfew times shown on the addendum need to be accompanied by an oversize permit. When traveling through the Eisenhower Tunnel on I-70, the maximum overall height allowed is 13’11”. Higher loads use US-6 to bypass the tunnel. Permitted loads over 11′ wide must pull over and call to get clearance to pass through the tunnel.

Meanwhile, wider loads are able to pass through without extra notice. Loads going in and out of Denver require permits for city streets. However, Denver is especially slow in turning them around (an average wait of 2-3 days). Plan accordingly.

You can also obtain any trip and fuel permits you may need with our sister site!