HS2 Ltd revealed the concept for the Colne Valley viaduct developed by independent specialists Knight Architects, working with Atkins, in consultation with the Colne Valley Regional Park Panel, and the HS2 Independent Design Panel, consisting of architects, designers and experts in sustainability.
The viaduct’s concept will help inform development of its final design and form the basis for wider discussions with local communities. Align, the main civil engineering contractor for HS2 between the Colne Valley viaduct and the northern portal of the Chilterns Tunnel, will engage the local community on these designs in spring 2018.
The concept has been developed around 14 key criteria, which were set by HS2 in consultation with the HS2 Independent Design Panel. These include whether the design fits the landscape, maintains views and landscape ‘flow’, is well proportioned and elegant. As well as the viaduct itself, the concept document also explores innovative ideas for additional elements such as transparent noise-reduction barriers with vertical lines which are visible to bats and wildfowl to reduce possible impacts, whilst creating a slimmer side profile of the viaduct.
“We are delighted that this imaginative and carefully-considered concept has been published, and can form the basis for wider discussions with the communities around the Colne Valley and all those who value and use the spaces and amenities within it,” Sadie Morgan, chair of the Independent Design Panel, said.
Construction partner Align will be responsible for developing the final design and constructing the viaduct according to technical specifications and within an agreed cost envelope.
Photo: Hayes Davidson / Knight Architects