South bound freighttrain with Re 4/4 II # 11260 and Re 6/6 # 11610 "Spreitenbach" is crossing the 120 meter long Säcken viaduct between Amsteg and Gurtnellen on the Gotthard north ramp. This is the only viaduct on the Gotthard mountain line, which is more or less in the appearance from when it was built in 1880. Originally, it had 6 bows of 10 meter each. When the line was doubletracked in 1893, it was lengthened and got 4 more bows.
