The London-based McArdle civil-engineering group has won an £85M, three-year contract to work on the project to widen London`s M25 orbital motorway.
The contract was awarded by the Skanska-Balfour joint venture, and will involve site clearance and earthworks covering around 60km of the route. Six million tonnes of soil and aggregates will have to be moved.
McArdle, which was acquired last year by Cork-based Mercier Private Equity and also has a joint venture in the Caribbean, says it is the largest project it has ever worked on.
The company specialises in motorway development, site remediation and construction projects. These include the redevelopment of the M1, the A3 Hindhead Tunnel, the T5 baggage handling tunnel at Heathrow and the Limerick Southern Ring Road Tunnel in Ireland.