Jackknifed Semi Disrupts Traffic On Highway 36

BOULDER COUNTY, Colo. (CBS4)– A jackknifed semi truck blocked eastbound lanes of US 36 on Monday.
The semi was jackknifed in the eastbound lanes on the hill approaching Davidson Mesa about 11:37 a.m. That blocked all lanes of traffic except for the express lane. Traffic was getting through in that lane but there were significant delays in the area.
(credit: CDOT)
Investigators with the Colorado State Patrol believe the semi driver suffered a medical incident that triggered the crash. The d