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Laying, relaying and maintaining tracks

Colas Rail is a leading company in track works and relaying and maintaining urban and interurban tracks.

• It is the undisputed specialist in laying high-speed train tracks in France and on international markets.
• It uses innovative methods in track-laying and operating works bases.
• It also boasts proven competences in more specific areas, such as laying, maintaining and renewing overhead travelling cranes, which can lift and move heavy weights.

Colas Rail assists and advises private companies to meet their growing needs to connect to the national network. It also installs and upkeeps sidings.

Track components

Colas Rail also provides track components through its workshop at Ambérieu, which is specialised in the manufacture of overhead line parts and all types of metalwork-boiler construction.


44, rue Jean Mermoz
78600 Maisons-Laffitte
Tel.: 00 33-1 34 93 83 00