The Trisanna Bridge, or Wiesberg Bridge, is the imposing railway bridge of the Arlberg Railway and spans the entrance of the Paznaun at an altitude of 87 m with a length of 230 m.
In 1883, the bridge was built as part of the Arlbergbahn construction. The electric lighting installed for this purpose was a sensation at the time. After a construction period of only one year, the bridge was completed in 1884 as Austria's widest stretched railway bridge. (Quelle: Wikipedia)