During the First World War three strategic Rhine crossings were built at the request of the German generals in order to bring troops and war materials to the Western Front. The Bingen–Rüdesheim ferry was replaced by the Hindenburg Bridge, built between 1913 and 1915 and connecting the East Rhine line with the West Rhine railway and the Nahe Valley Railway. From 1916 to 1918, the Neuwied–Koblenz line, including the Crown Prince Wilhelm Bridge, was built between Urmitz and Neuwied-Engers. The Ludendorff Bridge between Erpel and Remagen was built from 1916 to 1919. It connected the East and West Rhine railway lines and the strategically important Ahr Valley Railway. The Hindenburg, Ludendorff and Kronprinz-Wilhelm Bridges were destroyed in World War II. Only the Crown Prince Wilhelm Bridge was rebuilt, as the Urmitz bridge, in 1954.