SUMMIT COUNTY, Colo. — Four people, including a mother and her two children, were taken to the hospital after a semi-truck hauling construction materials on a flatbed trailer lost its brakes on Interstate 70 just west of the Eisenhower Tunnel and hit three vehicles, according to a Facebook post from Summit Fire and EMS.
The westbound lanes of I-70 reopened just before noon.
They were closed at U.S. 6 as a result of the crash, which happened shortly before 8 a.m. Friday at mile marker 207. Witnesses indicated that the truck had reached "extremely high speeds" just prior to the collision, according to Summit Fire.
Summit Fire and EMS said the vehicle with the mother and kids inside rolled several times. All three were taken to the hospital by ambulance. The driver of the semi-truck was initially unresponsive, according to Summit Fire, and was taken to St. Anthony's Hospital in Lakewood by helicopter.
Two other vehicles were involved in the crash, but no one else was hurt, according to Summit Fire.
The westbound lanes were closed for several hours Friday morning on the east side of the Eisenhower Tunnel while the Colorado State Patrol (CSP) conducted an accident investigation and completed cleanup of hazardous materials, including fuel and oil, as well as the non-hazardous construction supplies that were scattered.
During the closure, Loveland Pass was an alternate route. The Colorado Department of Transportation (CDOT) said in a tweet to expect long delays.
SUGGESTED VIDEOS: Local stories from 9NEWS