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HS2: planning go-ahead for third Birmingham viaduct

HS2 Ltd has obtained native authority approval to construct a 3rd viaduct throughout the Digbeth canal as a part of the Curzon Avenue station website in Birmingham.

Balfour Beatty Vinci (BBVJV) would be the contractor on the job, which obtained the go-ahead from Birmingham Metropolis Council’s planning committee yesterday.

Three viaducts will likely be constructed on the Curzon Avenue website, which was ready on the approval of designs for the third one, situated closest to the station.

The brand new proposal included modifications in design, such because the discount of the width of the construction from 71 metres to 65 metres, and an alteration to its curvature. The Curzon 3 viaduct, which was authorized, will open into 4 decks close to the station.

Tweaks embrace the scrapping of the Curzon Avenue pumping station. It will likely be changed by an attenuation pond or tank, which can retailer extra water that gathers on the viaduct, permitting it to be launched in a managed method.

The three viaducts will likely be constructed on inverted metal piers, versus the V-shaped piers within the unique design, which serves as a tribute to the heritage of canal-side cranes in Birmingham. It would additionally save house beneath for extra public space.

This follows concern that the concrete platform or plinth may create run-off into the encompassing canals.

HS2 planning supervisor for Birmingham Metropolis Council Victoria Chadaway beneficial the proposals for approval, which have been voted on by the planning committee yesterday.

A HS2 spokesperson mentioned the planning approval was a major win for the rail undertaking. “Our design refinements convey a variety of advantages, together with lowering the development time and supplies, leading to decreased carbon.”

Earlier this month, HS2 started building on its largest viaduct at Colne Valley, utilizing a 700-tonne bridge-building machine.