 Beyond there, the interstate's wide open heading east into Summit County past Copper Mountain. South of the interstate to Frisco and Breckenridge, Colorado 9 is clear and wide open. So is the interstate going by Lake Dillon. East of Silverthorne and heading up to the Continental Divide in the Eisenhower Tunnel, no problems. Tunnel maintenance was done overnight. East of the tunnel on the way down toward the Denver area that drives mostly good,