A consortium of private sector designers and contractors was appointed in 2006 to develop a concept design which achieves the best solution for the underpass. The consortium comprised Thiess, Leed and Parsons Brinckerhoff. Thiess and Leed also comprise the consortium, appointed in July 2007 to construct the underpass.
The preliminary concept design was announced in October 2006. Following an intensive community engagement and communications program to gain feedback on and further input into the design, the refined concept design was publicly released in March 2007. Stage One of the construction works began in August 2007 and will run to July 2008. The underpass is expected to be open for traffic by late 2009.
The project has needed full or partial acquisition of properties on the western side of South Road between Tennyson Street, Kurralta Park and Forest Street, at Glandore.
The government recognises that projects of this scale invariably impact upon local communities. In particular, some residential properties have been acquired and some community service providers and businesses are relocating as a result of the project.
Government officers have been working closely with these providers and businesses to find alternative locations and to achieve fair and equitable outcomes for all parties affected by the project.

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