Rheinbrücke Feuerthalen, Railway bridge over the Rhine between Feuerthalen and Schaffhausen, Switzerland

The Rheinbrücke Feuerthalen is a railway viaduct that crosses the Rhine between Feuerthalen and Schaffhausen, stretching about 262 meters in total length. The structure combines masonry arch sections on both banks with a central steel truss that spans across the river.

The line from Etzwilen to Feuerthalen was approved in 1870 and opened by the Schweizerische Nordostbahn on 1 November 1894. The Feuerthalen–Schaffhausen section followed on 2 April 1895, once the 760-metre Emmersberg tunnel and the Rhine bridge were finished. The bridge itself was built in 1894–1895 under chief engineer Robert Moser, with a continuous gravel trough from the start.

The bridge is recognized as a cultural property of regional importance, reflecting how engineering solutions of that era connected two separate cantons. Today it stands as a monument to how infrastructure shaped the relationship between neighboring communities.

The bridge carries the single-track Seelinie between Feuerthalen and Schaffhausen station, so it is crossed only by train. The masonry viaducts on both banks can be viewed from the paths below; the Schaffhausen viaduct spans the Fischerhäuserstrasse with a 13-metre arch. The steel truss over the river is best seen from the riverbanks.

The river pier is not vertical: its top measures 2.4 by 7.4 metres and widens downward at a ratio of 1:50, standing on a 4.3 by 9.0 metre concrete foundation sunk 7 metres into the riverbed. The steel truss above it was supplied by Bosshard & Cie. of Näfels and assembled on a timber scaffold founded on pile bents in the Rhine.