Construction project of the upgrade of the RN9 between Bordj Mira and Kherrata in the valley crossed by the Wadi Agrioun.
The widening of the ancient road of Kherrata gorges is included in the global project of the division into dual carriageway of the road linking Bejaia and Setif to transform the national route RN09 into a 2 by 2 lane expressway. The project includes the alignment design following the ancient road wich leads to a huge amount of cantilever structures and tunnel works. Nearly 20000 m2 of cantilever beams platform have been installed with a maximum cantilever of 6.50 m.
Kherrata, Algeria. (2013-2018, ongoing construction).