M4-M5 Link investigations under way

20 Apr 2016

Planning work for the proposed M4-M5 Link is progressing this month with geotechnical investigations scheduled to get under way along the corridor.

The work involves collecting ground samples from around 100 sites along the route between Haberfield and St Peters to help inform the geological profile of the area, which will be used in developing the design of the M4-M5 Link project.

M4-M5 Link Project Director Peter Jones said the investigation work was vital to getting the planning right for the tunnel project.

“The geotechnical investigations play a very important part of supporting the planning and design work currently underway for the M4-M5 Link and will complement other activities being carried out, such as survey work and utility investigations,” he said.

“We thank the community for their patience while this work is carried out.

“These investigations are in addition to the important consultation currently under way with key stakeholders. We are working with local councils, government agencies, industry and the community to develop a reference design which is expected to be released in late 2016.”

The M4-M5 Link is the final stage of WestConnex and will provide a crucial tunnel link between the M4 and M5 corridors in addition to connections at Rozelle to the proposed second harbour road crossing – the Western Harbour Tunnel.

Geotechnical investigations will start from this month, and will be carried out at various locations including Parramatta Road, City West Link, Victoria Road and other nearby local streets.

The work will generally be carried out during the day, mostly in public areas, with local residences and businesses notified before work starts. Any access to privately owned land will be discussed with individual property owners in advance. 

Temporary worksites with safety fencing will be set up at each location to securely contain the drilling equipment and traffic control arrangements will be put in place if the work is taking place near a road or pedestrian/cycle path. 

All sites will be restored to their original condition after the work is completed.

The geotechnical work is being done in accordance with the State Environmental Planning Policy (Infrastructure) 2007 and Roads Act 1993.