Salginatobel Bridge - Credit: Wikimedia Commons
Salginatobel Bridge - Credit: Wikimedia Commons
Salginatobel Bridge is a reinforced concrete arch bridge designed by Swiss civil engineer Robert Maillart. It was constructed across an alpine ravine in the grisonian Prättigau, belonging to the municipality of Schiers, in Switzerland between 1929 and 1930. In 1991, it was declared an International Historic Civil Engineering Landmark, the thirteenth such structure and the first concrete bridge so designated.Billington, 2003, p.60 Read more on Wikipedia
Source: en.wikipedia.org