Constantine

Constantine's older city occupies a rocky plateau cut off on several sides by the deep Rhumel gorge. This terrain makes bridges an essential part of its urban structure: connections across the ravine link the historic rock to districts developed beyond it.

Different bridge technologies are visible in this landscape. A prestressed concrete bridge has carried the tramway since 2013, while the cable-stayed Trans-Rhumel viaduct opened in 2014, connecting the centre with the route towards Batna and the Mansourah plateau. These crossings explain the city's expansion through infrastructure that negotiates abrupt changes in level, rather than through a continuous extension of the old street fabric.