Clough, in joint venture with Baulderstone Hornibrook Pty Ltd (BCJV), was awarded a ten-year contract for the operation and maintenance of Perth’s Graham Farmer Freeway Tunnel. 

BCJV was responsible for operations, ongoing routine inspection and maintenance of the tunnel, bridges and its systems and surrounds.

The project involved ensuring a smooth and uninterrupted traffic flow in normal operating conditions, providing a secure environment for the public and BCJV personnel, responding to traffic incidents quickly and effectively and maximising traffic flow.

In December 2007, Clough transferred the final two years of operation and maintenance to our partner Bilfinger Berger, the parent company of Baulderstone Hornibrook.