Roads and Traffic Authority, N S W text image
Tunnelling images
Home > Construction and maintenance > Downloads > Tunnelling images

Road header and tunnelling images

Summary

At the peak of the Cross City Tunnel construction, nine tunnel road headers were used for the 8 km of tunnelling.
For the first time in NSW construction history, four of these 100 tonne machines were lowered down a 42 metre deep vertical access shaft near the intersection of William and Bourke streets. Trucks removed the tunnel spoil, allowing 24 hour tunnelling to take place. A total of 680,000 cubic metres of spoil was excavated and sold for use on other road projects around Sydney.

To open or download documents, 'right-click' on the title for PC and 'control-click' on the title for Mac and choose an option.
Help with downloading and viewing files

Road header images and diagrams
TYPE TITLE SIZE PAGES
image Preparing to lower the road header image 1 64.7Kb 1
image Preparing to lower the road header image 2 64.9Kb 1
image Lowering the road header view from bottom of shaft 46.1Kb 1
image Lowering the road header view from top of shaft 65.4Kb 1
pdf Diagram of how road header was lowered into the Bourke Street Shaft in 2003 55.7Kb 1
Tunnelling
TYPE TITLE SIZE PAGES
image Palmer Street ramps 68.4Kb 1
image Mainline eastbound west section 82.3Kb 1
Back to top
cross city tunnel road header images and diagrams download page