Tunnel Redevelopment in Lyon

The 1800 m long, four-lane road tunnel de la Croix-Rousse in Lyon between the banks of the Rhone and the Saône passes beneath the Croix-Rousse chain of hills. Owing to the age of the structure – it was built back in 1952 – frequent closures became necessary finally leading to the weight of vehicles being restricted to 3.5 t. It was thus decided to build a second tunnel. Following completion of the roughwork, the existing tunnel was closed for six months for extensive asbestos renovation. Renewing the carriageway lasted a further 9 months, including the construction of cross-passages to the...

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