May 2015 Castle Hill CONSTRUCTION UPDATE Excavation of the station area continues Welcome to our Castle Hill quarterly construction update. These newsletters are designed to keep you informed of project activities and community involvement in your local area. The $8.3 billion North West Rail Link is Australia’s biggest public transport project currently under construction and a priority infrastructure investment for the NSW Government. Thiess John Holland Dragados has been contracted to build the tunnels and civil works for five of the eight new stations and two service facilities. Excavation of the rail crossover cavern is complete CROSSOVER CAVERN EXCAVATED A significant milestone has been achieved at the Castle Hill Station site with excavation of the rail crossover cavern completed. The cavern has taken about six months to excavate using a road header, dozers and excavators. About 14,400 tonnes of shotcrete was sprayed, 420 tonnes of mesh installed and 1820 rock bolts drilled into the walls to support the structure. The 115,000 tonnes of material removed from the cavern was transported offsite to be re-used in land developments across western Sydney. The cavern is located at the eastern end of the site and measures 160 m long, 23 m wide and up to 17 m high. It is designed to allow trains to cross from one track to the other. Excavation of the station area is continuing and about 60 per cent complete, while the arched tunnel sections at the site’s western end are also being permanently lined with concrete. Works at the Castle Hill site are underway around the clock to prepare for the arrival of the tunnel boring machines (TBMs), called Elizabeth and Florence, as they pass through on their way to Cherrybrook. The next phase of works involves waterproofing the cavern and installing a permanent concrete lining on the walls. About 22,113 tonnes of concrete will be needed to form the lining; this amount would fill about three Olympic-sized swimming pools. 15_102_NWRL_Newsletter CH 2P.indd 1 20/05/2015 8:48 am yville Tunnelling Works Bella Vista Norwest Showground Castle Hill Cheltenham Services Facility Cherrybrook Epping THREE MONTH LOOK AHEAD JUNE •Installing waterproofing and permanent concrete lining within the cavern and arched tunnel sections •Continuing excavation of the station area to reach final depth and installing ground support in the station area •Removing excavated material from the site JULY •Continuing excavation of the station area and installing ground support •Removing excavated material from the site •Completing lining works in the cavern and arched tunnel sections AUGUST •Finalising excavation works in the station area WHERE ARE THE TUNNEL BORING MACHINES? BEAR COTTAGE WELCOMES SELF-REFERRALS TBM1 Elizabeth and TBM2 Florence are busily making their way Thiess John Holland Dragados is raising from the Norwest Station site towards Showground. Shortly funds, while delivering the NWRL project, after Elizabeth breaks through at Showground, that site will start to support Bear Cottage’s important work. supporting the tunnelling machines as they head towards Castle Hill and Cherrybrook. Currently their support site is located at Bella Vista. If your family has a child with a terminal condition, Bear Cottage can provide respite and palliative care in a homelike environment. Bear Cottage at Manly is the only children’s hospice in NSW. If you would like to find out more about Bear Cottage please visit www.bearcottage.chw.edu.au. Elizabeth breaks through into the Norwest site The other two machines, TBM3 Isabelle and TBM4 Maria, are also working hard as they tunnel between Cherrybrook and Epping. To make a complaint or to get more information Call 1800 019 989 Email [email protected] Visit the Community Information Centre, Shop 490, Castle Towers Shopping Centre, Castle Hill (entrance on Old Castle Hill Road) www.northwestrail.com.au Florence undergoes maintenance while resting at Norwest You can track the progress of all four tunnel boring machines at www.northwestrail.com.au or visit the Community Information Centre at the Castle Towers shopping centre, just inside the Old Castle Hill Road entrance (Shop 490). Stay up to date with tunnelling activities Register today for community email updates at [email protected]. Like us on Facebook at www.facebook.com/NorthWestRailLink. Printed on BJ Ball – Ecostar Gloss NWRLTSC-TJV-031051-CSH-SH-NEW 1800 019 989 northwestrail.com.au 15_102_NWRL_Newsletter CH 2P.indd 2 20/05/2015 8:48 am Mac Univ
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