Jouy en Josas (78), Île-de-France – chantier achevé.
Date de début : août 2005
Délai : 55 mois
Montant du projet : 20,738 M€
Couverture acoustique des 15 voies de l’A86 à Vélizy : génie civil, charpente métallique et damiers phoniques. Longueur : 340 m. Largeur : 30 m.
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