Major HS2 milestone as giant bridge to be moved across Birmingham's ring road - here's when
The HS2 team is ready to move a massive steel bridge over Birmingham's ring road this month, minimising disruption with night-time operations.
A specialist HS2 engineering team is preparing to move a 112m long, 1,631 tonne steel structure over a section of Lawley Middleway – part of Birmingham’s ring road this August.
The operation will be delivered by HS2’s main works contractor in the Midlands, Balfour Beatty VINCI (BBV) and their bridge move contractor Mammoet.
Rather than building the bridge in situ, disruption to road users has been drastically reduced by constructing the steel span on land next to Digbeth Canal over the last two years. In preparation for the move, the structure will now be jacked up onto two self-propelled modular transporters (SPMTs).
On 15 August, heavy lifting engineering experts Mammoet will rotate the bridge 90 degrees using the SPMTs. From 16 – 23 August, a skidding system - with a jacking push/pull mechanism, will then be used alongside the SPMT to move the structure into place across Lawley Middleway. This combination of techniques is rarely used and is a first for BBV on the HS2 project.
To minimise disruption to road users, the span will be moved in night-time operations - moving around 12 metres every night, ensuring that the road remains open during the day.
The section of Lawley Middleway will be closed between 10.00pm and 6.00am from Garrison Circus to Curzon Circus from 15 to 24 August. A clearly signed diversion route will be in place during the night-time closures and the road will be fully open again at 6.00am on 24 August. The official diversion route has been planned to avoid entering the Birmingham Clean Air Zone (CAZ), but drivers can use alternative routes if they prefer.
Lawley Middleway bridge forms part of the railway’s approach to Birmingham, with high-speed trains travelling out of the west portal of the 3.5 mile Bromford Tunnel at Washwood Heath and onto a one mile stretch of five connected viaducts - Duddeston Junction, Curzon 1, Curzon 2, Lawley Middleway and Curzon 3 which links onto the platforms of Curzon Street Station.
Now at peak productivity, work will progress on this section of the railway with the second Bromford Tunnel breakthrough, Curzon 2 viaduct move, first Duddeston Junction Viaduct move, reopening of Aston Church Road, demolition of the old Aston Church Road bridge and start of construction of the new Saltley Viaduct – all set to happen over the next 12 months.