This project to rehabilitate the Walloon infrastructure network, started in May 2014, consisted of rehabilitating (complete replacement of structures, reinforcement of beams and piles, thickening the concrete slabs and repair work on the supporting framework) and enlarging (creation of emergency stopping lanes and an acceleration/deceleration lane) of a ‘triple’ viaduct spanning successively the Albert Canal, the Chertal site and the Meuse. Three objectives were pursued: improving the durability of the structures, reducing congestion at this point of particularly high traffic density, and optimizing user safety.