Excavation works start in T1 tunnel (Constantine, Algeria)

Tunnel T1 is a two-tube highway tunnel near Constantine (Algeria). Tunnel construction by NATM started in 2010 and it has been interrupted the 1st January 2014, when a great collapse involved the tube under construction and the other one already finished, with severe damages to final tunnel lining.

SWS is in charge of detailed design of all works needed for tunnel refurbishment and completion, monitoring and project management services for our client, Cosider Travaux Publics.

First steel ribs of pilot tunnel enlargement has been installed October, 28th 2018 and tunnel enlargement is currently ongoing.

Click here to have more information about the project.

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