Commercial vehicles operating on I-70 in either direction between mileposts 133 (Dotsero) and 259 (Morrison) from Sept. 1 to May 31 must carry sufficient chains at all times to be in compliance with the Colorado chain law.

As the only statewide traffic enforcement agency, the Colorado State Patrol investigates approximately 30 percent of traffic crashes in Colorado, including about 70 percent of all traffic crashes involving fatalities. The statistics on this site address only Colorado State Patrol enforcement activity. Statistics for the entire state are available from the Colorado Department of Revenue

Over the last five years, individuals involved in serious crashes were more likely to die when they did not wear their seat belts.

Crashes involving alcohol and drugs have twice the number of injuries and deaths as crashes without alcohol and drug involvement. They usually involve higher speeds, and often both the driver and any passengers are not wearing seatbelts.