BAULKHAM Hills MP David Elliott said Norwest is the first station the first two tunnel-boring machines will arrive at on their journey from Bella Vista.
"Excavation and rock-breaking has been taking place for much of this year at Norwest station, which measures 200 metres long, 20 metres wide and 22 metres deep," Mr Elliott said.
"To support the deep excavation of Norwest station, 148 reinforced concrete pillars were constructed underground.
"Concrete spraying known as shotcreting is under way to stabilise the walls of the excavated station area.
"Norwest is also the site of an innovative construction solution that saw beams from the old Sydney Monorail used to build a temporary road bridge across Brookhollow Avenue.
"This innovation dramatically cut the time this key local road was closed from about three years to only three months. Now, workers can continue excavating the station underneath while motorists use Brookhollow Avenue above.
"Sixty beams from the old Sydney Monorail were used to build the temporary road bridge, which will be removed when construction of the underground station work is complete."
Norwest is one of the fastest growing employment centres in Sydney and is home to the headquarters for major national and international companies such as Woolworths, Subaru and for medical supply specialists ResMed and B.Braun.
About 15,000 people from across Sydney work at this specialised employment centre .