Immediately west of the tunnel Höllberg, a 307-metre bridge was built to the crossing of the Rhintals and the B-80. Since joining the tunnel with separate tubes per direction road with a distance of 25 m, two independent bridges spanning the Valley at a maximum light height of 19 m are required.<br><br>Design and construction:<br><br>Cornice caps of the middle distance between approx. 5 m, at the Eastern approx. 10 m at the East end of the bridge. The design process aimed to create a bridge work, which blends harmoniously into the landscape and at the same time economically establish themselves and get.<br><br>Due to the low altitude of the Valley, the great height for a walk-in box girder proved to be as aesthetically unsatisfactory. As a preferred solution steel composite structures were elected during the planning phase for the two buildings with two sleek, airtight welded hollow section box. This structure allows a much larger field (60 m) over the Rhin. This midfield, that represents a special eye-catcher on the building, running with gevouteter base.<br><br>A balanced ratio of spans to Valley height arises with spans of 32 - 41 - 46-60 - 46-44-38 m and a total length of 307 m. A clamping plate beam structure has prevailed in the course of the tender of the construction work adhering to the outer form, in particular the spans, the design optimized, low height and the gevouteten midfield, as a more economical construction compared to the originally planned steel composite structure.<bR><hr><br>Height superstructure 2.12 to 3.43 m<br>Concrete: 12.250 m m³<bR>Concrete steel: approx. 1,400 t<br>Prestressing steel: approx. 250 t<br>Manufacturing process: supporting structure<br>Superstructure: 2-leg-prestressed concrete plate beam<br>Cost approx. €8.5 million
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