• Topographical surveys
• Technical assistance
• Construction management in association with Schroeder & Associés
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Wildlife Crossing – A3 Motorway
Road construction & various networks
Construction of a wildlife crossing structure as part of the widening of the A3 motorway to 2 x 3 lanes.
Contracting authority Ministère de la Mobilité et des Travaux Publics / Administration des Ponts & Chaussées
Etude 2017-2022
Construction 2022-2025
Key features
• Excavation: approx. 19,500 m³
• Embankment: approx. 22,000 m³
• Stripping/replacement of topsoil: approx. 10,000 / 6,500 m²
• Symmetrical reinforced concrete barriers: approx. 1,000 m
• Formwork quantity: approx. 5,200 m²
• Concrete quantity: approx. 3,600 m³
• Reinforcement steel: approx. 610,000 kg