Disruption on M1 near Chesterfield because of broken down vehicle Keep checking our website for the latest news. One lane is currently blocked on the M1 southbound between junctions 29 (Chesterfield) and 28 (Alfreton) because of a broken down vehicle. A Highways England spokesperson said traffic officers are en-route to the scene to deal with the incident. Police release further information in appeal to help find missing Chesterfield man