UK rail operator Network Rail has chosen AmeyColas for a £250m contract to operate and maintain its high-tech, high-output track renewal systems.

The five-year contract, with the Amey Rail and Colas joint venture, includes renewal and replacement of over 1,600 miles of track, which forms nearly 30% of Network Rail’s total renewals workload.

The contract covers the operator’s four high-output systems, three existing and one to be delivered in December 2010, consisting of high-output ballast cleaners, high-output track renewals trains and other support machinery and plant.

The high-output systems can replace between 400 and 600m of track and ballast within eight hours, reducing costs and reducing passenger and freight delays.

The contract begins from January 2010.