Autoroute A11 - rénovation de la protection anticorrosion du PI 8 A&B – viaduc de l’Erdre

This tender, issued by COFIROUTE (VINCI Autoroutes), seeks a contractor for anticorrosion protection renovation of the Erdre Viaduct on the A11 motorway in France. The work involves partial repainting from suspended scaffolding, concrete repairs, and rainwater pipe repairs over an estimated 7,500 m² of steel structure. The procedure is an open call for tenders with a single lot, duration of 10 months (estimated start April 2027), and a submission deadline of 14 September 2026. No estimated value is published. The tender is fully electronic via the Safetender platform, with strict language (French) and qualification requirements (FNTP 7222 or equivalent). The contract will be awarded to a single economic operator or a consortium, with mandatory solidarity from the leader. No advance payment is provided, and a 5% performance guarantee is required.