The Pfrimm Viaduct (German: Pfrimmtalviadukt), colloquially also called the Marnheim Bridge (Marnheimer Brücke), was a railway bridge near Marnheim in the county of Donnersbergkreis in the German state of Rhineland-Palatinate. It was built as a stone arch and truss bridge from 1872 to 1874,[1] was 260 metres long and 30 metres high,[2] and carried the Donnersberg Railway from Hungerberg over the valley of the Pfrimm to the Zeller Valley Railway, which is only open at weekends today. The bridge is a protected monument and forms the "Gateway to the Zellertal" (Tor zum Zellertal).