Road builder serving territories
Since 1929, Colas has been designing, building, and maintaining roads that sustainably connect territories. As a trusted partner for local authorities, infrastructure managers, and private stakeholders, we deliver all types of roadworks – from local roads to major highways, including airport runways and logistics platforms.
Roads designed to last
Road infrastructure is a key element of territorial networks and economic development. At Colas, every road or highway is treated as a long-term investment, designed to meet today’s and tomorrow’s mobility needs. We implement technical solutions tailored to diverse contexts – climatic, geotechnical, and environmental – to ensure the durability and safety of structures. Our teams combine innovation, performance, and respect for natural resources to build robust, resilient, and responsible infrastructure, serving both users and territories.
From design to execution: complete expertise
Our teams work across the entire lifecycle of road infrastructure: studies and engineering, earthworks, foundations, base layers, asphalt production and laying, safety equipment, and signage. Integrating material production and controlling processes ensures the quality and consistency of structures while optimizing timeframes and costs.
High-performance pavements, tailored to every use
High-traffic highways, national and departmental roads, urban streets, port roads, or industrial platforms: each project requires a specific pavement structure and surfacing. We design the layers (foundation, base, surface) according to loads, climatic conditions, and expected service levels. High-modulus asphalt, porous asphalt, low-temperature solutions, or mixes with high recycled content: we apply the right “performance – safety – durability” mix.
Expertise serving territories
National, departmental, and urban roads
Colas supports public project owners in modernizing, securing, and maintaining the network. Our work ranges from creating new routes to structural rehabilitation, integrating soft mobility solutions (pedestrian zones, bike lanes), de-paving, and stormwater management where the urban context requires it.
Airport runways and logistics platforms
For aeronautical zones and logistics hubs, we build pavements designed to withstand very high mechanical stresses (large aircraft, heavy machinery) with strict requirements for flatness, load-bearing capacity, and resistance to hydrocarbons. Our teams phase the work to minimize operational impact and ensure user safety.
Our airport projects
Colas works on demanding airport infrastructure, where pavement quality is crucial for safety and operational continuity. We have carried out runway, taxiway, and apron projects at benchmark sites subject to extreme traffic, load-bearing, and climatic conditions.
A trusted partner for major road projects
In France and internationally, Colas deploys industrial and human resources scaled for long stretches, upgrades to dual carriageways, bypasses, and constrained highway projects (traffic maintained, night-time work windows). Our local presence, supported by a network of offices and production units, ensures responsiveness, proximity, and adherence to deadlines.
Our commitments to more sustainable roads
Frequently asked questions
A road builder is a professional capable of designing, sizing, constructing, and maintaining roads, highways, and associated structures (pavements, foundations, and equipment). They bring together engineering, material production, and construction expertise to deliver safe and durable infrastructure.
Studies, earthworks, pavement structure, surfacing, safety and signage, routine and structural maintenance, as well as environmental optimization (recycling, lower asphalt temperatures, circular economy).
Through an integrated process: engineering → platform preparation → pavement layers → asphalt surfacing → equipment and signage → quality controls. This model minimizes interfaces and ensures long-term performance.
Roads, highways, urban streets, airport runways, industrial and logistics platforms, port areas, and mobility solutions.
Do you have a road project?
Colas, your local partner
Local authorities, project owners, or companies: Colas supports you in creating, maintaining, or modernizing your road infrastructure with sustainable solutions tailored to your needs.
