Width: 8' 6"
Height: 14' 6"
Overhang: Front 4', Rear 10' Length: 57' 4"
Single Axle - 20,000 lb.
Tandem Axle - 36,000 lb.
Tri-Axle - 54,000 lb.
Steer Axle- 20,000 lb. –
Maximum: 80,000 (Interstate)
Maximum: 85,000 non-Interstate
Colorado Permit Department Contact Information
7:30 AM - 4:30 PM Mountain
2. If the Overhang is more than 25 feet in the rear, the Pilot Escort Vehicle shall travel in the rear.
Pilot Escort Requirements
Escort drivers must must obtain and maintain certification to be authorized to escort an Extra-legal Vehicle or Load
on a State Highway.
Axle Gross Weights
Axle Group Maximum
Single 20,000 lb.
Tandem 34,000 lb.
Two Tire Axle 500 lb. per inch of tire width
Steering Axle 500 lb. per inch of tire width
Gross Weight 80,000 lb.
The maximum load per tire measured by pounds per inch of tire width shall be:
Axle Group Requirements:
The total gross weight in pounds imposed on the highway by any group of two or more consecutive axles on a vehicle or combination of vehicles, shall not exceed the values computed by Federal Bridge Formula “B”
Western Region Agreement
If a commercial vehicle requiring
apportionment is not apportioned for Colorado, but occasionally does
business here, a Laden Weight Registration Trip permit should be
purchased at the first port facility. These permits are valid for 72
hours for multiple trips.
GVW is 10,001 - 30,000 lbs. $60.00
GVW is 30,001 - 60,000 lbs. $70.00
GVW is 60,000 - legal max. lbs. $80.00
Vehicles Subject to IFTA:
1) Single unit with 2 axles and gross weight or registered weight greater than 26,000 lbs.
2) Single unit having 3 or more axles regardless of weight.
3) Combination unit when gross combination weight (GVW) or the registered weight (GVWR) is over 26,000 lbs.
Temporary IFTA permit obtainable at every Port of Entry location.
Source of information: https://www.colorado.gov/pacific/csp/permits-and-forms
Fines for overweight conditions are:
For weights in excess of legal weights the fines are:
1-2500 lb. $50.00
2501 - 5,000 $100.00
5,001 - 7,500 $200.00
7,501 - 10,000 $400.00
In excess of 10,000 lb. $150.00 for each 1,000 lb over 10,000 lb, plus $400.
Yellow warning lights: 1 on the cab of the truck 2 or 3 at the rear corners and extremity of the load."Oversized Load" Banners
"Oversized Load" signs required for all oversized loads. Oversize loads required “Wide Load” or “Wide”, “Long Load” or “Long” , or “Oversize Load” or “Oversize,” as applicable.
All such signs shall either be 5 feet wide, 10 inches high with 1 inch wide brush stroke, black letters a minimum of 8 inches high on yellow background, or shall be 7 feet wide, 18 inches high, with a 1.41 inch brush stroke, black letters a minimum of 10 inches high on yellow background.
Flags required at all four corners of any extremities of wide and over length loads
Operating Times: Sunrise to Sunset
Loads up to 12' may operate with proper lights .
Loads over 12' up to 14' may operate at night with escort car.
Restricted Travel: Eisenhower Tunnel--Loads in excess of 13' 11" high MUST use US 6 bypass. Wide loads over 11' must pull over and call for clearance through tunnel. There are other time restrictions on Colorado highways specified in 2 CCR 601-4 (401)
Holiday Restrictions: An LVC is prohibited from travel at any time on Memorial Day, Independence Day, and Labor Day. If Independence Day falls on a Saturday an LVC is also prohibited from travel on the previous Friday, and if such holiday falls on a Sunday an LVC is also prohibited from travel on the following Monday.
An LVC may travel on New Year's Day, Thanksgiving Day, and Christmas Day. However, if such holiday falls on a Saturday an LVC is prohibited from travel on the previous Friday, and if such holiday falls on a Sunday an LVC is prohibited from travel on the following Monday.An Extra-legal Vehicle or Load, other than an LVC; is prohibited from travel between the hours of 6:00 a.m. to 9:00 p.m. 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 p.m. (noon) and 9:00 p.m., 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 p.m. (noon) and 9:00 p.m.
An Extra-legal Vehicle or Load is prohibited from travel between the hours of 12:00 p.m. (noon) and 9:00 p.m. on the Friday preceding Memorial Day and Labor Day.
When the chain law is in effect, drivers will be notified which vehicles must chain up and where.
Metal chains must consist of two circular metal loops, one on each side of the tire, connected by not less than nine evenly spaced chains across the tread.
Commercial vehicles having four or more drive wheels must chain four wheels. Dual tire chains are acceptable.
Approved alternative traction devices include wheel sanders and the AutoSock.
Also tire cables are not permitted by law as an alternative traction device
Chain Law Level 1: All single drive axle combination commercial vehicles must chain all four driver wheels. All other commercial vehicles must have snow tires or chains.
Chain Law Level 2; All commercial
vehicles must chain up. Single drive axle and tandem drive axle
combination commercial vehicles must chain four drive wheels. Busses must chain two drive wheels to comply.
traveling on I-70 in either direction between milepost 133 (Dotsero) and
259 (Morrison) from Sept. 1 from May 31 must carry sufficient chains at
all times to be in compliance with the Colorado chain law.
Time, it takes to receive: 1 business day
Construction zones include equipment, workers, and daily changes in the road and alignment. Lower speed limits, flaggers, and police enforcement are used to help keep work zones safe, but motorists still must drive responsibly to keep themselves and our workers safe.
Expect the unexpected - Normal speed limits may be reduced, traffic lanes may be changed, and people may be working on or near the road.
Slow down - Speeding is one of the major causes of work zone crashes.
Be aware of constructions crews - Keep a safe distance between your vehicle, and the construction workers and their equipment.
Heed signs - Observe the posted signs until you see the one that says you've left the work zone.
Obey flaggers - A flagger has the same authority as a regulatory sign; you can be cited for disobeying his or her directions.
Stay alert and minimize distractions - Dedicate your full attention to the roadway.
A modular or manufactured home with an open side(s) is prohibited from travel unless it is fully enclosed with paneling. The paneling shall consist of 0.5 mil plastic sheathing or stronger, backed by a grill work not more than a square 4 feet by 4 feet or if the open side is wrapped in reinforced polyethylene, grill work is not necessary. Any ready-made poly tarps and/or poly tarp rolls are not permissible.
The overall Width of manufactured home shall be based on the total Width of the manufactured home exclusive of the measurement of the eaves of the manufactured home, provided;
The base Width of the manufactured housing unit does not exceed 14 feet; and
The total Width of the eave or eaves does not exceed 2 feet.
See the rules concerning operation or movement of an Extra-legal Vehicle or Load