Rock slide at Glenwood Canyon halts travel on I-70 between the Canyon and Dotsero . It 's unclear when crews will do enough work to open at least part of the roadway . Transportation department : About 20 rocks rolled down there shortly after midnight . The damage resembles a major rock slide in the area back in 2004 , the department said . Rocks were from 3 feet to 10 feet in diameter ; about 20 holes or dips left on the interstate .
Rock slide at Glenwood Canyon halts travel on I-70 between the Canyon and Dotsero . It 's unclear when crews will do enough work to open at least part of the roadway . Transportation department : About 20 rocks rolled down there shortly after midnight . Rocks were from 3 feet to 10 feet in diameter ; about 20 holes or dips left on the interstate .