Marmorbrücke Splügen, Stone arch bridge in Grisons, Switzerland

The Marmorbrücke Splügen is a road bridge over the Hüscherabach stream above Splügen in the Rheinwald, Grisons. Its flat vault is built of white marble from a nearby quarry, and the side barriers are granite. The bridge is 15 metres long with a roadway 5 metres wide.

Built in 1834 after severe weather damaged regional infrastructure, the bridge received financial support from Zurich during its construction. The reconstruction was part of efforts to secure the mountain pass connection in this Alpine region.

The structure uses white marble from local quarries in the region, material that connects it to the same sources used for Milan Cathedral. Visitors notice the bright color of the arch, which stands out against the surrounding mountain landscape.

The bridge sits on the main road through Splügen Pass and is used by travelers crossing the region on foot or by vehicle. Visibility is good on clear days, though weather conditions at this elevation can change rapidly.

The bridge's marble came from a small quarry a little way up the valley; Splügen marble was also used for Milan Cathedral and otherwise ground into road gravel in Rheinwald. The flat vault is white marble, while the side parapets are granite. On the east side the new road met the old commercial route, whose trace is still visible in the terrain where it has not slipped.