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Traveler information for Colorado interstates and highways about Colorado road conditions and weather information, accurate travel times and speeds, live streaming video and still cameras, current road closures and construction events and incident information, messages on overhead message boards and weather station information provided on a timely basis on Road and weather conditions are available by dialing 511 or 303-639-1111, also.

Colorado’s winter driving conditions can change from sunny to blowing snow within an hour or two. Be prepared at all times, but especially in winter. Know road conditions, know your vehicle, use proper driving techniques for the conditions you find, and have the right emergency gear and equipment along.

Safety Tips

  • Be sure to carry plenty of windshield wiper fluid as liquid de-icers used to treat the roadways may stick to your windshield
  • Let the snowplow drivers do their jobs by giving them extra room- Slow down! When weather forecasts indicate the dispatch of snowplows will be necessary, CDOT mobilizes plows at the start of the storm and may put down a layer of liquid de-icer once snow starts to fall to help prevent the precipitation from freezing to the roadway surface. Even roads that have been treated with liquid de-icers may be slippery.
  • Don’t use cruise control when traveling in winter conditions
  • Be prepared. Have a scraper, snow brush, coat, hat, gloves, blanket, first aid kit, flashlight, tire chains, matches and nonperishable food in your car
  • Make sure your tires have good tread – Worn tires cannot grip the road and can be extremely hazardous – think of tires as your lifeline in a car; the few square inches of rubber contacting the pavement is all that is between you and potential trouble.

Colorado Vehicle Traction and Chain Laws:

When the Traction or Chain Law is active, motorists will need to have either snow tires, tires with the mud/snow (M/S) designation, or a four-wheel drive vehicle. All tires must have a minimum one-eighth inch tread.

Motorists driving with inadequate equipment during a Passenger Vehicle Traction or Chain Law could be fined more than $130.

If a motorist blocks the roadway because they have inadequate equipment during a Passenger Vehicle Traction or Chain Law, they could be fined more than $650.

I-70 Mountain Express Toll Lane:

Express Lanes: One eastbound lane between Empire and Idaho Springs

Use of Lane: All vehicles with two axles, including motorcycles, carpoolers, and hybrids will pay a toll in the Express Lane. Please note that the HOV/Carpool option will NOT be available on this lane. Vehicles with more than two axles, or longer than 25 feet, as well as trailers and buses will not be permitted at any point.

It’s important to know that travelers are never forced to pay a toll and can always choose to travel in the adjacent free general purpose lanes.