winter ready

Colorado weather and roadway conditions can change in an instant. Make sure you’re prepared for everything that winter and I-70 throws at you with these important driving reminders. CBS4 is a proud supporter of the Colorado Department of Transportation’s (CDOT) Winter Ready campaign, helping you get to and from the mountains safer.

Traction Law

If you’re headed up to the high country, it’s imperative for your safety and the safety of others to have the right equipment for winter driving. Make sure you understand Colorado’s Passenger Vehicle Traction Law.


If weather conditions require, CDOT will implement the Traction Law. Check conditions before you leave — if snow is falling, there’s a good chance a Traction Law is in effect.

traction law

Visit and watch highway signage to see if there is an active Traction Law. You can also sign up for traffic/roadway alerts to be notified when the law is implemented.

Passenger Vehicle Chain Law

The Passenger Vehicle Chain Law is the final safety measure before the highway is closed during a severe winter storm. When implemented, every vehicle on the roadway must have chains or an alternative traction device (like AutoSock).


For more information, including frequently asked questions, visit the CDOT website.

I-70 Mountain Express Lane

The I-70 Mountain Express Lane is a 13-mile shoulder on eastbound I-70 that operates as a third lane during peak travel periods. When in operation, the extra lane improves travel time by nearly 30 minutes. Watch the video below and visit the ExpressToll website to set up an ExpressToll account to use the lane for less.




Snowplows are deployed to clear the road and keep all drivers safe, but they need space to work. Avoid these dangerous maneuvers around snowplows:

1) NEVER try to pass during tandem plowing. Tandem plowing staggers multiple snowplows to cover all lanes and clear the entire roadway in one sweep. This is the safest and most efficient snow removal method and also the most dangerous time to try and pass plows.
2) Tailgating. Snowplows drop anti-icing products, deicer and sand, so drivers need to remain three or four car lengths behind them. Driving too close behind a plow can cause sand and deicer to hit your car and put you in danger if the plow needs to make a sudden stop.
3) Passing on the right. Plows are designed to push the snow, slush, rocks and other debris to the right of the plow, so passing on the right can cause damage to your car and temporarily blind you.


Travel Resources

There are many resources available to keep you safe and provide up-to-date information on road conditions, Traction Laws and the I-70 Mountain Express Lane. – Provides information for Colorado interstates and highways, including current road conditions, weather information, accurate travel times and speeds, live streaming video and still images, and more.

– 511 – Available by phone anywhere in Colorado, providing information on traffic and road closure information.

Email or Text Alerts – Visit GovDelivery to sign up for travel alerts directly to your email or phone. – GoI70 provides a weekly Travel Forecast based on historical travel data to show you when to avoid peak travel times. You can also find special Peak Time Deals offering discounted lodging, dining and events from local mountain businesses to help you avoid the return congestion.