The Sainte-Croix-du-Verdon bridge has linked the departments of Var and Alpes-de-Haute-Provence since 1972. The quality of the materials at that time, as well as the means of calculation available, did not make it possible to anticipate the phenomena of concrete creep and tension losses in the prestressing cables. In order to reinforce the deck structure, eight additional prestressing cables anchored at the abutments were planned over the entire length of the deck. The transverse structure was reinforced by pairs of prestressed bars. The central span was reinforced with strips of carbon fibre fabric distributed around the box section. Each crack was then treated by a sealing and resin injection process. At the same time, the superstructures were also restored: waterproofing of the road surface, replacement of pavements, pavement joints and guardrails. In addition, anti-intrusion devices for chiropterans (bats) and replacement nesting boxes for swifts were installed.