A lightning-fast project without any interruption in traffic
Ahejarr Ennehal viaduct is a combined masonry and concrete structure featuring three 7-metre arch spans, with a total length of 33 metres. ONCF was looking to repair and proceed to the structural strengthening of the viaduct, so that it could be used by locomotives with a 25-ton axle load. Our teams had to carry out the structural repair work without any interruption to railway services, while working to an extremely tight deadline of three months in light of the problems affecting the viaduct. Freyssima’s teams had discovered a number of issues during their painstaking inspection, including local deformation to the facing panels, cracks in the rubble walls and a structural fracture at the junction between the viaduct’s string course and one of the arches.