18.11.2018, 21:16 Uhr

Supreme Award for Structural Engineering Excellence for the Tamina Canyon Crossing

The Tamina Canyon Crossing in Bad Ragaz, Canton St. Gallen, Switzerland received the Supreme Award for Structural Engineering Excellence 2018 by the Institution of Structural Engineers.

The Supreme Award for Structural Engineering Excellence goes to the "finest example of excellence in structural engineering design", selected by the judges from the winners of the twelve principal Awards categories.

Judge's comment:

This is undoubtedly an outstanding engineering solution, and the judges were impressed by the elegance, clarity and economy of the design. The judges noted the efficiency of the structural system, as well as the beautiful way that the design integrates with its spectacular surroundings. This is a concrete arch design in the best traditions of Christian Menn and Robert Maillart, and the engineers have produced a world class and graceful design. The judges liked the way that the open spandrel prop supports are inclined in a radial fan arrangement, and the high degree of transparency that has been achieved, with an attractive rhythm for the spans of the deck girder. This transparency is accentuated by the slenderness of the thin inclined props which is achieved by the use of meticulously detailed concrete hinges. The two end props, which spring from the ends of the arch, imposing both physical and visual weight at these points to good effect, work as part of an integral framing system with the slightly deeper end spans of the girder. These spans can therefore be longer, thus avoiding the need for additional foundations at the sensitive upper slopes of the valley. So the bridge stands on just four foundations, reducing construction uncertainty and maximising the economy of the scheme.


The Award Ceremony has taken place at The Brewery in London last Friday.

Opens external link in new windowhttps://www.istructe.org/structuralawards/winners