The last pre-cast deck sector is reduced into location with fantastic event and excitement
The Colne Valley viaduct, which covers 3.4 km (2.1 miles), is being developed by Align JV for HS2 Ltd to bring the brand-new London-Birmingham train line.
The structure brings HS2 at a height of 10 metres throughout the Colne Valley near the M25 freeway and the town of Denham.
It takes the record of the nation's longest rail bridge from the 3.3 km Tay Bridge, integrated in 1887 to connect Fife and Dundee.
The Colne Valley viaduct's building is being handled by the primary works professional Align JV– a joint endeavor of Bouygues Travaux Publics, Sir Robert McAlpine and VolkerFitzpatrick. It is among 500 bridging structures on the HS2 job.
Structure deal with the viaduct's deck started in May 2022. Over the 28 months ever since, the releasing girder has actually reduced into location 1,000 deck sectors.
Edging forward from north to south and supported on the viaduct's 56 piers, the 160 metre long launcher utilized a balanced-cantilever approach to lower deck sectors into location to form half an arch either side of a pier before relocating to the next pier to finish the arch period by duplicating the procedure.
The 1,000 pre-cast sectors were made on-site at a purpose-built factory. Each of the sections is distinctively formed to allow the structure to curve.
HS2 Ltd senior job supervisor Billy Ahluwalia stated: “Lowering the Colne Valley viaduct's last deck section into location today marks the conclusion of more than 10 years of preparation, style and building and construction. I commemorate the devoted group that has actually provided a bridge that is both the longest on HS2 and has actually ended up being the United Kingdom's longest train bridge– taking a record that had actually meant almost 140 years. That is a historical accomplishment of which we can all be exceptionally happy.”
Line up job director Loïc Menard stated: “The Align group, together with our supply chain partners VSL who ran the releasing girder, have actually worked really hard to get us to where we are today, ahead of strategy. Collaborating and as a genuinely incorporated group that consists of HS2, Align, our style partners, our supply chain coworkers and the regional neighborhood, we have actually constructed the Colne Valley Viaduct which will be the renowned function of HS2.”
The turning point comes a week after the conclusion of HS2's very first significant viaduct, at Highfurlong Brook in Northamptonshire. [See previous report here.]
Work is likewise advancing on the Delta Junction viaducts in the West Midlands and the raised techniques to Curzon Street station.
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