Regional train 1452 of the line R16 of the Rhaetian Railway from Arosa to Chur is crossing the large Langwies viaduct, with a height of 62 meter and a main span of 100 meter, between Litzirüti and Langwies. This is by far the largest viaduct of the Rhaetian Railway, built between 1912 and 1914 in reinforced concrete. The push-pull train has the cab car Bt # 52803 in front, followed by a first/second class AB type II, a second class standard type B I in the "Bärenland" paint scheme and the "Allegra" ABe 8/12 # 3510. In the very rear is a second class standard car type B I as reinforcement, very rare nowadays!
