1992 Volume 30 Issue 12 Pages 13-20
The Sydney Harbour Tunnel, the first undersea road tunnel in Australia, has been constructed by a joint venture involving Kumagai Gumi and an Australian construction firm and opened on 31st of August 1992. As the Project has been undertaken in a particularly environmentally sensitive location, a wide range of special measures was taken to minimise environmental impact. In addition, new techniques have been employed for the immersed tube tunnel construction, such as a long ocean towing of tunnel units, a flexible final joint, etc. This report addresses the outline of the Project including the unique techniques employed.
