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Prosthetic Engineering: “Le Pont des Etudiants” in Constantine

Abstract This paper illustrates the prosthetic reconstruction of a historic masonry viaduct in Algeria. Two of the viaduct arches on the left bank that collapsed because of soil instability have been replaced with a stayed girder that allows for future soil kinematics while restoring the compression in the remaining masonry arches on the right bank. The numerical simulations of the viaduct wreckage needed to assess the integrity of the standing portion and the main issues in the subsequent design and construction of this pioneering intervention are discussed.