Projects
Eiffel Nigeria has successfully delivered diverse projects across multiple sectors, including industrial installations, heavy structures, and steel buildings, ensuring quality, safety, and timely execution.
Operations Division – Civil Structures & Hydraulics
Diversion of National Road RN19 in Port-sur-Saône
Saône Viaduct
Location: Port-sur-Saône (70), France
Client (Owner): DREAL of Franche-Comté
Project Management Consultant: Road Engineering Department – Alsace Franche-Comté
Project Value: €11.13 million (Eiffage share)
Execution Period: July 2017 – June 2020
Project Consortium: Lead Contractor: EIFFAGE GÉNIE CIVIL; Subcontracting Entity: Yes (EGC)
Project Features: The Saône Viaduct is a composite twin-girder structure comprising bridge deck sections and cantilevers resting on Y-shaped piers approx. 25 m high. These Y-shaped branches are connected by a metal bracing system shaped as Saint Andrew’s crosses.
The steel structure is coated with a C3-class corrosion protection system.
Key Quantities: Steel used for deck: 4,050 tonnes; Steel for Saint Andrew’s crosses: 140 tonnes; Total length: 607 meters; Span configuration: 58.5 m – 5 spans of 78 m – 97.5 m – 58.5 m; Total width: 21.70 meters.
Installation Method: The bridge deck was installed through five successive launching operations, with reinforcement cages embedded during the launch phases.
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Western Bypass of Strasbourg (67)
Location: Strasbourg (67), France
Client (Owner): ARCOS (Concessionaire)
Project Manager: SOCOS
Execution Period: 2018 to 2021
Project Consortium: Lead Contractor: Vinci Construction Terrassements; Subcontractor: Eiffage Métal (on behalf of Vinci)
Project Description: On 15 December 2021, the Western Bypass of Strasbourg—a 24 km section designed to relieve traffic congestion on the highway passing through Strasbourg—was officially commissioned.
At its northern end, Eiffage Métal constructed the Viaduc de Vendenheim, consisting of two parallel decks, each serving a direction of traffic.
The northern deck, with variable width, is a twin-girder structure with deck segments, cantilevers, and occasional diaphragms.
The southern deck is also a twin-girder structure but includes crossbeams.
For this project, Eiffage Métal acted as a subcontractor to Vinci.
Key Quantities: Steel used: 3,500 tonnes; Total length: 455 meters; Span configuration (both decks): 42 m – 59 m – 64 m – 63 m – 64 m – 65.5 m – 51 m – 47 m.
Installation Method: Both northern and southern decks were installed using three launching operations each, carried out under traffic interruptions, as the bridge crosses:
• The Paris–Strasbourg high-speed rail line (TGV)
• The Marne–Rhine Canal
• A departmental road.
The first and last launches were interrupted by the 2020 COVID-19 lockdown period.
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Operations Division – Civil Structures & Hydraulics
Location: Vesoul, France
Client (Owner): DREAL Bourgogne – Franche-Comté
Project Manager: Interdepartmental Directorate of Eastern Roads
Execution Period: July 2016 to May 2018
Project Consortium: Lead Contractor: EIFFAGE Génie Civil (Eastern Agency); Subcontracting Entity: Yes (EIFFAGE GC Est)
Project Description: The construction of the Viaduc de la Scyotte was part of the Port-sur-Saône bypass on National Road RN19, which is part of a broader project connecting the A31 motorway from Langres to the Swiss border.
The bridge is a composite twin-girder structure with deck segments and cantilevers. The Y-shaped concrete piers are reinforced with metallic Saint Andrew’s crosses linking the upper branches.
The structure is made of weathering steel, which does not require any anti-corrosion protection, making it particularly suitable for the natural site it spans.
Key Quantities: Steel used: 1,189 tonnes; Total Length: 190 meters; Girder Height: 3,800 mm.
Installation Method: The structure was installed using three launching operations, utilizing sliding pads and roller supports depending on the segment.
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