February 6, 1872
Civil engineer Robert Maillart was born in Bern, Switzerland. Maillart left a lasting imprint on his profession through his aesthetical approach to bridge construction and his innovative use of structural reinforced concrete for that purpose. Two prominent examples of Maillart’s work are the Salginatobel and Schwandbach Bridges that he designed and built.
The Salginatobel Bridge, which was completed in 1930, spans the Salgina Valley ravine in Schiers, Switzerland. This structure is the earliest surviving three-hinged, hollow box arch bridge to be designed by Maillart. His concrete hollow box design, which involves joining the concrete arch ring and the concrete deck with longitudinal concrete sidewalls to give a structure the cross-section of the hollow box, has greatly influenced bridge-building efforts worldwide. In 1991, the Salginatobel Bridge was declared by the American Society of Civil Engineers to be an International Historic Civil Engineering Landmark. It was the first concrete…
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