For a line that runs through a hilly landscape, the Allgäubahn has remarkably few notable bridges so the three arch structure over the Obere Argen between Unterthalhofen and Harbatshofen is a rarity. 612.074 sped around the curve with a late running RE3883, the 07:25 from Lindau to Augsburg, on the morning of 5 May 2013.