Galgenbuck Tunnel: Excavation completed

The connection Schaffhausen south of the Swiss autobahn A4 is to be rearranged, the

road network of the city Schaffhausen will be connected to the Klettgau and the municipality of Neuhausen at the Rhine falls is to be relieved of its traffic congestion with up to 27 000 vehicles passing through daily. The 1138 m long Galgenbuck Tunnel between Engi and Bahntal with its two bi-directional lanes is one of the more extensive construction sites. It was excavated starting at Engi with a 4.5 % decline and had its breakthrough in February 2016 after two and a half years of construction, followed by a...