The Wommen Viaduct is an arch bridge built between 1938 and 1940. It is a 303.8 metre (997 ft) long motorway bridge on the A4 motorway near Wommen. Because of World War II, it was only half-finished, and because of the German division this bridge was closed until 1990. It was supplemented until 1993 by a new bridge for the second lane.