Rush-hour motorists on M1 could face delays M1 traffic Motorists on the M1 could face delays north of Sheffield this morning due to a breakdown. One lane is closed northbound at the junction 35 turn-off for Rotherham.Traffic conditions are expected to return to normal by 8.30am. Breakdown closes M1 southbound lane between Chesterfield/Mansfield and Tibshelf junctions
