Bab El Kantra Bridge is one of eight famous high-level bridges that cross the Rhumel Rivergorge in Constantine, Algeria. The Kantara bridge is the oldest and has taken several different forms over the years: from a 1792 Ottoman-style multi-arch bridge, to an 1863 French iron arch, to its current form as a concrete arch bridge. Like the higher Sidi M'Cid Bridge, there is a unique, natural "bridge" almost directly under the span that blocks much of the river from view. Partial remains of the earlier stone bridges can still be seen on top of this natural bridge.
^Sakowski (16 October 2009). "El Kantara Bridge". highestbridges.com. Constantine, Algeria: highestbridges. Retrieved December 7, 2021.
^Janberg, Nicolas (15 September 2009). "Pont d'El Kantara". structurae.net. Constantine, Algeria: structurae. Retrieved December 7, 2021.