 Other railway lines run east into the Black Forest and west to Breisach and are served by the Breisgau S-Bahn.The line to Breisach is the remaining stub of the Freiburg–Colmar international railway, severed in 1945 when the railway bridge over the Rhine at Breisach was destroyed, and was never replaced.The city also is served by the A5 Frankfurt am Main – Basel motorway.