M25 orbital motorway concession in Greater London

project in operation

The M25 Motorway network comprises a 200-km ring road around London, about 200 km of radial trunk roads, and several complex structures, including the Dartford Crossing, which crosses the River Thames to the east of London.  The geographic area inside the M25 Motorway is home to a population of about 9 million, making it one of the busiest road projects around one of Europe's largest metropolitan areas.The project involves the operation and maintenance of the entire network, as well as design and executionof the renovation and widening of two sections in the North East and North West quadrants of the M25 North of London. A total of 63km between junctions 16 to 23 and 27 to 30 have been widened from three to four lanes in each direction.Since the concession was awarded in 2009, the concessionaire has carried out significant improvement works on more than 100km of the road network. These works were done over various phases and completed in 2015.