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Aboveday
Jun 6, 2005, 10:28 AM
http://www.hyd.gov.hk/eng/major/majorworks/sb/images/scb_5.jpg


June 5, 2005
Development

On track to the future



Works on the Route 8 expressway are progressing well with the first segment of the Stonecutter's Bridge steel deck due to be lifted into place by the end of next year.



The 15km route will stretch from Sha Tin to Tsing Yi, and at $15 billion is one of the Highways Department's largest and most challenging projects. In terms of cost and complexity, it is very similar to the roads that were constructed for the new airport on Chek Lap Kok, department Deputy Project Manager (Major Works) David English said.

Route 8 - Lai Chi Kok Viaduct Route 8 - West Tsing Yi Viaduct Route 8 - Stonecutters Bridge east tower excavation
* * *
In full swing: The construction of Route 8, including the Lai Chi Kok Viaduct, West Tsing Yi Viaduct and Stonecutters Bridge, is progressing well.

2 stages

The dual three-lane expressway will be completed in two stages - Stage 1 between Sha Tin and Cheung Sha Wan will open to traffic in mid-2007, while Stage 2 from Cheung Sha Wan to Tsing Yi will be ready by mid-2008.



It is being constructed under seven civil engineering contracts together with a traffic control and surveillance system contract. It will provide full traffic control for the whole route from a centralised control room. The Civil Engineering & Development Department is constructing the vital T3 connecting section of the expressway in Tai Wai under a separate contract.



Mr English said: "On completion of Route 8 we will have erected over 8,000 concrete viaduct segments, all of which have been cast in the Mainland and shipped to Hong Kong and we will have excavated nearly 1.4 million cubic metres of rock, enough to fill Hong Kong's biggest building the International Finance Centre, to build 4km of tunnels."



Alternate route

Writing in the department's latest newsletter, Mr English said the strategic route will offer an alternative for residents in the northeast New Territories to get to the airport and the northwest New Territories, and for container vehicles to access container ports thereby relieving traffic congestion at the Lion Rock and Shing Mun Tunnels, and on Tai Po Road.



He said Stage 1 works, comprising three contracts - the Lai Chi Kok Viaduct, the Eagle's Nest Tunnel and Sha Tin Heights Tunnel - started in November 2002. The department achieved a milestone tunnel breakthrough for the Sha Tin Heights Tunnel, and the breakthrough for the 2km long Eagle's Nest tunnel is forecast for mid-2005.



About 100 pre-cast segments for the Lai Chi Kok Viaduct have already been erected by crane, and full erection is underway, using a 180-metre long gantry that places concrete segments up to 3.5 metres high and weighing up to 100 tonnes each.



On Stage 2, Mr English said works on the 1.2km Nam Wan Tunnel have been running smoothly, and are 55% complete. The first tube breakthrough was achieved in February and the second in May. Works on the tunnel concrete lining are being conducted and installation of lighting and ventilation equipment will start later this year.



"The West Tsing Yi Viaduct is also making good progress, with about 80% of the bridge structures completed and connection with the Cheung Ching Highway near the Tsing Ma Bridge in progress," he added.



Centre showpiece

Mr English said the works contract for Stonecutters Bridge was awarded in May last year and the bridge will be in place by mid-2008.



With a central span of 1,018 metres, the bridge will be one of the longest span cable-stayed bridges in the world, beating Tatara Bridge in Japan, the present record holder, by 130 metres.



"The deck will be suspended by cables from two towers nearly 300 metres in height, the same as Central Plaza in Wan Chai. The top section will be clad in stainless steel, which will be a world first."



Piling for the eastern backspan, comprising four piers and the east tower, has been completed, while piling for the western backspan and west tower is in progress.



The steel wire material for the stay cables is being made in Japan and is ready for delivery to its fabrication yard in Jiangyin in Jiangsu Province. The first segment of the steel deck is now being made in the Shanhaiguan fabrication yard, near the Great Wall's eastern entrance. The fabricated steel will then be shipped to Dongguan for assembly, before being delivered to Hong Kong for erection.



Mr English said the bridge will take four years to build, and the first segment is scheduled to be lifted into place at end-2006.



"The bridge is more than an engineering feat in which our engineers will no doubt take pride. It will also be a defining piece of architecture for Hong Kong and a reflection of the confidence of this world city to rise to the challenges of the new millennium. We look forward to the delivery of this strategically important project in mid-2008."

http://www.info.gov.hk/yearbook/2001/photo/ep08-07.jpg

there is no drawing for this great bridge at the moment,will you draw this for us?:D

winglun
Jun 8, 2005, 5:24 PM
http://skyscraperpage.com/cities/?buildingID=9289&drawingID=14536

Pls click the above link.
It has been drawn/

Aboveday
Jun 25, 2005, 3:21 AM
thanks !