Northern Railway Bridge, Railway bridge in Brigittenau district, Vienna, Austria

The Northern Railway Bridge is a railway crossing that spans the Danube River and connects the districts of Brigittenau and Floridsdorf in Vienna. The structure consists of multiple spans that support daily train traffic across the river.

The Kaiser-Ferdinand-Nordbahnbrücke opened in 1877 as the last of the new railway bridges over the regulated Danube, built with parabolic truss girders and four river spans. Its caisson piers, sunk by Gebrüder Klein, A. Schmitz & E. Gaertner, remain in use. German troops blew it up in early April 1945; rebuilt with steel half-parabola girders, it was passable again in 1957, with scheduled trains from 31 May 1959.

The bridge carries Northern Railway, Northwestern Railway and Vienna S-Bahn trains; since 16 January 1962 it has formed part of the S-Bahn trunk line between Meidling and Floridsdorf, with a 3-minute interval at peak times. Until the U6 Danube bridge opened, pedestrians could also cross the river here.

Pedestrians could cross the bridge until the U6 Danube bridge, now the Georg-Danzer-Steg, opened; today it carries only rail traffic. The best views of the four-span truss are from the banks of the Danube in Brigittenau or Floridsdorf. Trains run at a 3-minute interval at peak times.

In 1992 the 7,000-tonne bridge was raised by 170 centimetres to keep the eight-metre clearance for shipping after the Freudenau power station was built downstream; rail traffic stopped for two weeks that August.