Major highways and roads across Colorado were shut down as Wednesday’s blizzard wreaked havoc, triggering innumerable crashes and leaving travelers stranded as dangerous thoroughfares closed. Interstate 70 from Airpark Road to the Kansas state line will remain closed into Thursday morning, possibly Thursday afternoon, Colorado Department of Transportation officials said Wednesday night. And Interstate 25 north from Wellington to the Wyoming state line will be closed overnight, as will the stretch from Lone Tree to Colorado Springs. In addition to those closures: U.S.