via.kdvr.com
Westbound U.S. 36 reopens after several vehicles crash in Boulder
LOUISVILLE, Colo. -- Westbound U.S. 36 was closed on Tuesday morning after several vehicles encountered slick conditions and were involved in crashes, the Colorado State Patrol said. A 12-car pileup was reported about 10:30 a.m. on U.S. 36 near the Foothills Parkway exit, though first responders could not at first determine if it was one crash or multiple crashes.