Colas Génie Civil
Colas Génie Civil, a Colas brand, designs and builds the infrastructures that shape territories. Combining engineering, execution expertise, and innovation, Colas Génie Civil supports public and private project owners in the construction and rehabilitation of complex structures: bridges, tunnels, dams, ports, and specialized foundations.
Each project reflects the same ambition: to build high-performance, safe, and durable infrastructures that serve mobility and territorial development.
A Colas Group brand dedicated to large-scale infrastructure projects
Specializing in large-scale civil engineering projects, Colas Génie Civil implements tailor-made solutions to address the technical, environmental, and human challenges of major infrastructures. Its expertise spans the entire lifecycle of structures: from design to maintenance, including turnkey construction
Design, engineering, and turnkey construction
Thanks to its expertise in engineering and execution, Colas Génie Civil ensures full control of the most complex projects.
Its multidisciplinary teams integrate design, studies, engineering, and construction to deliver comprehensive, reliable, and sustainable solutions.
Bridges, hydraulic, and industrial structures
Colas Génie Civil works on major structures—bridges, viaducts, tunnels—as well as hydraulic and industrial infrastructures such as dams, ports, pumping stations, and specialized foundations.
This diverse expertise enables the company to meet a wide range of needs: mobility, energy, environment, and logistics.
Innovative solutions for sustainable infrastructures
Innovation and sustainability are at the heart of Colas Génie Civil’s approach. Each project incorporates advanced technical solutions, low-carbon materials, and environmentally friendly processes. The goal: to design and build structures that combine performance, safety, and environmental responsibility.
Innovation, safety, and performance on construction sites
Colas Génie Civil deploys cutting-edge technologies to optimize project design and execution:
- 3D modeling,
- Digital tools,
- Real-time monitoring,
- Intelligent resource management.
The safety of employees and local communities is an absolute priority, supported by a culture of prevention and continuous improvement.
Expertise serving communities and mobility
By supporting municipalities, public operators, and private stakeholders, Colas Génie Civil contributes to the development and modernization of infrastructures that facilitate mobility and support economic activity. Its projects help drive the sustainable transformation of territories, both in France and internationally.
Iconic projects in France and abroad
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Large-scale bridges and viaducts, including complex crossings and suspended structures designed to enhance mobility and safety
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Rail and road tunnels, constructed in challenging geotechnical environments using advanced engineering and controlled methods
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Port and maritime structures, supporting logistics, industrial, and energy activities to serve the regions
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Major hydraulic infrastructures—dams, pumping stations, canals—designed to meet high standards of performance, safety, and environmental requirements
Frequently Questions
Colas Génie Civil is a Colas Group brand specializing in the design, construction, and rehabilitation of large-scale structures: bridges, tunnels, hydraulic infrastructures, industrial works, ports, and specialized foundations. It supports public and private project owners on complex projects requiring technical expertise, innovation, and execution mastery.
Colas Génie Civil works across the entire lifecycle of infrastructures: studies, design, engineering, construction, and maintenance. Its teams cover several key areas:
- Bridges and civil structures (bridges, viaducts, footbridges, tunnels)
- Hydraulic infrastructures (dams, pumping stations, canals)
- Industrial and port infrastructures
- Special foundations and retaining structures
- Maritime and river engineering
Yes. Thanks to its multidisciplinary teams, Colas Génie Civil provides turnkey support, including studies, modeling (BIM and 3D modeling), engineering, construction, and commissioning. This integrated approach ensures the reliability, safety, and performance of projects.
Innovation is at the heart of Colas Génie Civil’s approach:
- Advanced digital modeling
- Real-time construction monitoring tools
- Low-carbon solutions (optimized materials, innovative processes)
- Construction methods that minimize disruption and environmental impact
These technologies enhance the accuracy, safety, and durability of structures.
Learn more
Benefit from Colas Génie Civil’s expertise to design and build high-performance, durable structures tailored to your needs.