Welshpool-based contracting group Macmahon Holdings Ltd has signed $180 million worth of new rail and civil construction contracts, taking its order book to the record level of $1.8 billion, the company announced today.

Welshpool-based contracting group Macmahon Holdings Ltd has signed $180 million worth of new rail and civil construction contracts, taking its order book to the record level of $1.8 billion, the company announced today.