New timelapse footage released by HS2 shows the Eiffage Kier Ferrovial BAM joint venture (EKFB) sliding a 4,500-tonne deck into position at the Small Dean viaduct over four days.
Stretching for 345m, the Small Dean viaduct in Buckhinghamshire is one of 50 major viaducts on the HS2 project.
The viaduct’s concrete and steel deck was assembled to its full length before the slide began, with most of the precast concrete deck slabs installed in advance of the launch. This increased the weight of the slide but will save time during the later stages of the project, HS2 said.
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