Colorado
Department of Transportation
Extra-Legal Permit Office
4201 E. Arkansas Ave. Suite 124
Denver, Colorado, 80222
T: (303) 757-9539
(800) 350-3765

Hours of Business

7:30 AM - 4:30 PM (Mountain time) ESCORTS

Escorts

Escort Requirements based on height

On height, consult state prior to move. On designated highways: heights up to 14’6″ are legal. On non-designated highways: height limits are 13′. A height pole shall be run by the front escort when load exceeds 16′ unless otherwise advised by permit. Height pole shall not extend more than 6″ above the maximum height of extra-legal vehicle or load.

Escort Requirements based on length

  • One pilot car escort required in front when the vehicle or load is greater than 85′ in length and traveling on mountainous two-lane routes and highways designated with hash marks.
  • One pilot car escort required in front when the vehicle or load is greater than 110′ in length and traveling on all other two-lane highways.
  • One pilot car escort is required in rear when load is greater than 115′ in length and travelling on all four lane highways.

Escort Requirements for overhang

  • If the Overhang is more than 15′ in the front, the Pilot Escort Vehicle shall travel in the front.
  • If the Overhang is more than 25′ in the rear, the Pilot Escort Vehicle shall travel in the rear.

Escort requirements based on width (Colorado has very specific color-coded routes which indicate pilot needs)

Red Routes

An extra-legal vehicle or load that exceeds 8’6″ in width requires a chapter 6 special permit.

Blue Routes

  • An extra-legal vehicle or load that exceeds 8’6″ but does not exceed 11′ in width requires one pilot car in the front.
  • An extra-legal vehicle or load that exceeds 11′ but does not exceed 13′ in width requires one pilot car in the front and one pilot car in the rear.
  • An extra-legal vehicle or load that exceeds 13′ in width requires a chapter 6 special permit.

Yellow Routes

  • An extra-legal vehicle or load that exceeds 11 feet but does not exceed 13 feet in width requires one pilot car in the front.
  • An extra-legal vehicle or load that exceeds 13 feet but does not exceed 15 feet in width requires one pilot car in the front and either one pilot car or one flashing yellow light in the rear.
  • An extra-legal vehicle or load that exceeds 15 feet in width requires a chapter 6 special permit.

Green Routes

  • An extra-legal vehicle or load that exceeds 13 feet but does not exceed 15 feet in width requires one pilot car in the front on a two-lane highway.
  • An extra-legal vehicle or load that exceeds 13 feet but does not exceed 15 feet in width requires either one pilot car or one flashing yellow light in the rear on a four-lane highway.
  • An extra-legal vehicle or load that exceeds 15 feet but does not exceed 17 feet in width requires one pilot car in the front and either one pilot car or one flashing yellow light in the rear on a two-lane highway.
  • An extra-legal vehicle or load that exceeds 15 feet but does not exceed 17 feet in width requires one pilot car or one flashing yellow light in the rear on a four-lane highway.
  • An extra-legal vehicle or load that exceeds 17 feet in width requires a chapter 6 special permit.

White Routes

  • An extra-legal vehicle or load that exceeds 15 feet but does not exceed 17 feet in width requires either one pilot car or one flashing yellow light in the rear.
  • An extra-legal vehicle or load that exceeds 17 feet in width requires a chapter 6 special permit.

Superloads

Superloads are a combination vehicle with a weight of 500,000 lbs. or more that occupies two lanes to haul, or an unladen combination vehicle with an expandable dual-lane transport trailer that occupies two lanes. An applicant for a super-load permit must provide the department of transportation with documentation, acceptable to the department of transportation, from a third party establishing the gross weight of the load. The driver shall carry the documentation in the vehicle during the permitted move and produce, upon request, the documentation for any state agency or law enforcement personnel.

Escort vehicle requirements can differ significantly by state in terms of mandatory driver qualifications, training, certifications, vehicle weights, obligatory signage/flags/lighting, necessary onboard equipment, and more. The ODS team can provide you with all additional requirements specific to your route.

Operating Times

Travel is permitted 24 hours per day, unless complying with special restrictions or other regulations which restrict travel on certain roads during certain hours or on certain days.

Travel is permitted on Saturday and Sunday unless complying with special restrictions or other regulations which restrict weekend travel on certain roads. Daylight travel is allowed as well as nighttime; however, night time travel has special requirements:

  • For loads less than 12′ in width, amber lights must be placed on top of the cab, along with two lights but not more than three, positioned on the extreme rear of the vehicle or load.
  • For loads 12′ to 14′ in width, these vehicles must have escorts, located at the front on two-lane roads or at the rear on four-lane roads. These restrictions are in addition to all other permit requirements.
  • Some areas are prohibited for night time travel.
  • Night travel for loads over 14′ in width requires special permits.

Holidays:

An Extra-legal Vehicle or Load is prohibited from travel between the hours of 6:00 am to 9:00 pm on Memorial Day, Independence Day, and Labor Day. When Independence Day falls on a Saturday an Extra-legal Vehicle or Load is also prohibited from travel on the previous Friday between 12:00 pm (noon) and 9:00 pm, and when Independence Day falls on a Sunday an Extra-legal Vehicle or Load is also prohibited from travel on the following Monday between 12:00 pm (noon) and 9:00 pm. An Extra-legal Vehicle or Load is prohibited from travel between the hours of 12:00 pm (noon) and 9:00 pm on the Friday preceding Memorial Day and Labor Day.

City-specific restrictions:

ASPEN – CARBONDALE AREA:

An Extra-legal Vehicle or Load is prohibited from travel, at the following times, unless authorized under a Chapter 6 Special Transport Permit on SH 82 between Carbondale (RP 11.7) and Aspen (RP 42), during the hours of 7:00 a.m. to 9:00 a.m. and 4:00 p.m. to 6:00 p.m., Monday through Friday.

CENTRAL CITY:

An Extra-legal Vehicle or Load can only travel between the hours of 3:00 a.m. and 11:00 a.m. in the Central City area.

  • SH 6 between SH 58 (RP 271.6) and I-70 at Floyd Hill (RP 275.7)
  • SH 119 between SH 6 (RP 0) to SH 72 (RP 22.7)
  • SH 46 between SH 119 (RP 0) and Gilpin/Jefferson County Line (RP 6.6) “at the Golden Gate Canyon

CLEAR CREEK CANYON:

An Extra-legal Vehicle or Load is prohibited from travel in Clear Creek Canyon during all times of the day on U.S. 6 between SH 58 (RP 271.6) and SH 119, unless authorized under a Chapter 6 Special or Super Load Transport Permit.

COLORADO SPRINGS:

An Extra-legal Vehicle or Load is prohibited from travel, at the following times, unless authorized under a Chapter 6 Special or Super Load Transport Permit in Colorado Springs, during the hours of 7:00 a.m. to 9:00 a.m. and 4:00 p.m. to 6:00 p.m., Monday through Friday.

  • I-25 between Academy Blvd. North (Exit 150A) and Academy Blvd. South (Exit 135)
  • I-25 between Monument (Exit 161, RP 160.8) and Academy Blvd South (Exit 135, RP 135.2)
  • SH 83 between Interquest Pkwy (RP 20.3) and Shoup Road (RP 21.2)
  • U.S. 24 between Exit 296 (Manitou Springs) (RP 297) and I-25 (RP 303) and I-25 (RP 303.4) and Meridian Blvd. (RP 320.3)
  • SH 94 between SH 24 (RP 0.5) and Enoch Road (RP 9.1)
  • SH 115 between Cherokee Dr. (RP 39.7) and I-25 (RP 47.5)
  • SH21 between Mesa Ridge (RP 131.8) and U.S. 24 (RP 139.5) and Jct. U.S. 24 (RP 141.7) and SH 83 (RP 154.1)

DENVER AREA:

An Extra-legal Vehicle or Load is prohibited from travel, at the following times, unless authorized under a Chapter 6 Special or Super Load Transport Permit in the Denver Area, during the hours of 6:00 a.m. to 9:00 a.m. and 3:00 p.m. to 6:00 p.m., Monday through Friday, on the following segments:

  • I-25 between I-225 (Exit 200, RP 200.1) and SH 128 (120th Avenue, Exit 223)
  • I-70 between SH 72 (Ward Road) (Exit 266, RP 265) and I-225 (Exit 282, RP 282.6)
  • I-76 between I-25 (Exit 5, RP 5.8) and I-70 (Exit 0, RP 0)
  • I-76 between I-25 (Exit 5, RP 5.8) and U.S. 85 (Exit 12 RP 12.0)
  • SH 88 (Federal Blvd.) between Belleview Avenue (RP 7.9) and Colfax Avenue (RP 0)
  • SH 287 (Federal Blvd.) between Colfax Avenue (RP 282.7) and SH 128 (120th Avenue) (RP 294.8)
  • SH 95 (Sheridan Blvd.) between U.S. 285 (Hampden Avenue) (RP 0) and U.S. 36 (RP14.3)
  • SH 391 (Kipling St.) between U.S. 285 (RP 0) and I-70 (RP 9.4)
  • SH 6 (6th Avenue) between I-25 (RP 284.5) and Indiana Street (RP 276.3)
  • SH 121 (Wadsworth Blvd.) between SH 470 (RP 0) and 80th Avenue (RP 20.7)
  • U.S. 36 between I-25 (RP 57) and SH 121 (Wadsworth Blvd.) (RP 48)
  • U.S. 285 (Hampden Avenue) between I-25 (RP 263.9) and SH 121 (Wadsworth Blvd.) (RP 255)
  • I-225 between I-25 (Exit 1A, RP 0) and I-70 (Exit 12B, RP 12.0)
  • I-270 between I-70 (Exit 5, RP 4.9) and I-25 (Exit 0, RP 0)

EISENHOWER-JOHNSON MEMORIAL TUNNELS RESTRICTIONS:

Each Extra-legal Vehicle or Load traveling on I-70 at mileposts 213 – 214 through the Eisenhower- Johnson Memorial Tunnels (the tunnels) must meet the requirements of 2 CCR 601-8 and the following:

  • An Extra-legal Vehicle or Load which is more than eleven feet in Width must stop at the tunnel approach parking lot and obtain permission from the tunnel superintendent or the portal attendant to travel through the tunnels.
  • An Extra-legal Vehicle or Load greater than thirteen feet eleven inches in Height is prohibited from travel through the tunnels.
  • During periods of construction one bore of the tunnel may be operated in a two-way traffic or bi-directional mode. During those periods, travel by Vehicles or Loads exceeding 8’ 6” in width will be prohibited in both directions through the affected bore. Extra-legal Vehicles or loads arriving at the tunnel during these periods will be detained by tunnel personnel until the two-way traffic operation is discontinued.

PUEBLO AREA:

An Extra-legal Vehicle or Load is prohibited from travel, at the following times, unless authorized under a Chapter 6 Special or Super Load Transport Permit in the Pueblo area, during the hours of 7:00 a.m. to 9:00 a.m. and 4:00 p.m. to 6:00 p.m., Monday through Friday.

  • I-25 between Lake Avenue (Exit 94, RP 94.8) and Eagleridge Blvd. (Exit 102, RP 102.2)
  • SH 47 between Jerry Murphy Road (RP .8) and I-25 (RP 0)
  • SH 50 between I–25 (RP 314.5) and Pueblo Blvd. (RP 312.1)
  • SH 50 Business Loop between Northern Avenue (RP 2.0) to Aspen Street (RP 2.9)
  • I-70 CORRIDOR SEASONAL RESTRICTIONS: An Extra-legal Vehicle or Load is prohibited from travel, at the following times, unless authorized under a Chapter 6 Special or Super Load Transport Permit on I-70 West Corridor defined as I-70 between the Morrison Exit (Exit 259, RP 258.7) and the West Vail Exit (Exit 173, RP 173.3), or any segment thereof.

Winter restrictions (December 1 through March 31): Westbound Travel Prohibited between 3:00 p.m. and 8:00 p.m. on Fridays, and between 7:00 a.m. and 12:00 pm noon on Saturdays and Sundays. Eastbound Travel Prohibited between 3:00 p.m. and 9:00 p.m. on Saturdays and Sundays.

Summer restrictions (May 15 through September 15): Westbound Travel Prohibited beginning at 4:00 p.m. at the Morrison Exit (Exit 259, RP 258.7) and beginning at 5:00 p.m. at the East Idaho Springs Exit (Exit 241) until 8:00 p.m. on Fridays, and between 8:00 a.m. and 12:00 p.m. noon on Saturdays. Eastbound Travel Prohibited between 3:00 p.m. and 9:00 p.m. on Sundays.