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An expansion of the Swiss national road network system is currently being constructed between Vaumarcus and Areuse.
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This tunnel under the river Warnow completed the ring road system around the city of Rostock.
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As part of the B 17 national highway, the Schleifenstrasse ring road has considerably eased the congestion in the centre of Augsburg and thus increased the quality of residential life in the area.
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To meet the very tight schedule specified the tunnel was built monolithically in 10 m weekly cycles, ie base, walls and roof slab in a single pour with no joints.
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The 1,240 m long structure, with a road tunnel and a central service duct, was cast monolithically in 10 m sections.
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