SMEC commences Warringah Freeway Upgrade Site Investigations

SMEC has commenced site investigations for the Warringah Freeway Upgrade, part of the multi-billion-dollar Western Harbour Tunnel...

SMEC has commenced site investigations for the Warringah Freeway Upgrade, part of the multi-billion-dollar Western Harbour Tunnel project by Transport for NSW (TfNSW).

These additional investigations incorporate sites that are part of the proposed Warringah Freeway Upgrade and the Western Harbour Tunnel projects, critical components in the current Motorways program that is under design development and construction by TfNSW.

The proposed Western Harbour Tunnel will provide an essential link from the New M4/M5 tunnels and Rozelle Interchange to the Warringah Freeway at North Sydney via a 6.5km tunnel under Sydney Harbour. The Warringah Freeway Upgrade will involve renovating 4km of the freeway to provide connections for the Western Harbour Tunnel and the proposed Beaches Link, significantly improving the efficiency of one of Australia’s busiest and most complex road corridors.

“The contamination and geotechnical investigations proposed for the Warringah Freeway Upgrade site investigations are designed to consider the potential risks associated with soil and groundwater contamination, which may be present at the site as a result of historical and current activities,” said Daniel Saunders, SMEC Team Leader - Environmental Site Services.

SMEC were awarded this scope of work on the strength of the combined Environment and Geotech service offering and successful delivery of similar investigations on the F6 Extension Project and Tugun Tunnel PFAS investigations. Our specialist teams also put forward an innovative methodology which condensed the amount of time spent in the field, reducing the impact to local communities and key stakeholders in a highly trafficked major road corridor.