Colorado workers use explosives to mitigate avalanches

Avalanche crews working to prevent avalanches actually triggered one Wednesday morning.Heavy snow and wind drifts combined with the mitigation work triggered the avalanche.The slide put 20 feet of snow over U.S. Highway 40 on Berthoud Pass just after 8 a.m. Wednesday.Drivers were urged to take a different route because the Colorado Department of Transportation said the slide resulted in a "lengthy delay."CDOT closed a portion of Interstate 70 at Bakerville just before 1 p.m. on Wednesday for ava