Westbound Interstate 76 is closed north of Commerce City after a semitrailer hit the outer edge of the Dahlia Street Bridge, according to the Colorado Department of Transportation. The crash was reported 2:35 p.m. involving the semitrailer and multiple vehicles, according to the Colorado State Patrol. Eastbound I-76 was also closed until 5 p.m. Westbound I-76 is still closed between U.S.