Liesberg Bridge

bridge, Liesberg, Switzerland

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June 30, 2026

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The Liesberg Bridge is a beam bridge located in Switzerland, designed by the innovative Swiss engineer Robert Maillart. Constructed over the Birs River in 1935, this bridge exemplifies Maillart's mastery of reinforced concrete. Its design features haunching of the beams, meaning they taper outward at the base of thin columns, and a curved top edge that becomes less deep near the abutments. This approach showcases Maillart's ability to create structures that are both technically sound and aesthetically pleasing, reflecting his deep understanding of concrete's properties.1

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Maillart’s innovations
…of his last bridges—at Vessy, Liesberg, and Lachen—illustrate his mature vision for the possibilities of structural art. Over the Arve River at Vessy in 1935, Maillart designed a three-hinged, hollow-box arch in which the thin cross-walls taper at mid-height, forming an X shape. This striking design, giving life to the…
Read More
…of his last bridges—at Vessy, Liesberg, and Lachen—illustrate his mature vision for the possibilities of structural art. Over the Arve River at Vessy in 1935, Maillart designed a three-hinged, hollow-box arch in which the thin cross-walls taper at mid-height, forming an X shape. This striking design, giving life to the…
Read More