Manchester Airport Footbridge

Cleveland Bridge fabricated and installed a new footbridge required to connect the site directly to rail, bus and tram links, and to provide direct access to and from Wythenshawe and surrounding areas.

  • Year: 2020
  • Location: Manchester, England
  • Client: Airport City Limited Partnership
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Requirement

Airport City Manchester is a major development that will provide 5 million sqft of offices, logistics, hotels and advanced manufacturing
space over the next 10 to 15 years, with a total development value of £1 billion. Manchester Airport Group is investing significantly in infrastructure at Airport City Manchester. As part of this investment, a new footbridge was required to connect the site directly to rail, bus and tram links, and to provide direct access to and from Wythenshawe and surrounding areas.

470-tonne

Total steel weight

132 metre

Total bridge length

21,000

Decorative perforations

Solution

Conceived by Manchester architects 5Plus, the £6m bridge was designed to make a striking addition to the landscape at Airport City Manchester. The 132m long structure features 21,000 decorative perforations along its sides, providing visibility of the carriageway below and casting intricate patterns of light onto the deck.
The complexity of drilling 21,000 perforations of varying sizes into the structural steel web, combined with the tight fabrication tolerances required for this bridge, ruled out many potential bridge manufacturers.

Cleveland Bridge was appointed to fabricate and install the bridge, thanks to its expertise, manufacturing resources
and track record of complex bridge construction.

Challenges

The drilling of 21,000 holes of varying sizes in a uniform pattern was an unusual requirement, requiring meticulous fabrication skills. The entire bridge fabrication required extreme precision, since the structure was to be installed on four piers with bearings set in position. Therefore there was zero tolerance for errors, as the alignment of the vertical stiffeners over the bearings had to be extremely accurate.
The tight tolerances meant the fabrication process was reviewed by the client on factory visits, to ensure
the accuracy of every detail. The girders were marked, checked, drilled and blasted, with quality checks throughout the process.

Challenges

Another challenge was the short road possession window, with the M56 being closed for just 12 hours
overnight to allow bridge installation. During this short period a trackway had to be laid across the motorway to enable the SPMTs to manoeuvre, since the east and west carriageways were at different heights. In addition, the assembled bridge was braced for movement, so allowance had to be made within the road closure window for removing the ten sets of braces.

Outcome

Cleveland Bridge was able to demonstrate extreme precision in all of its fabrication and installation processes, fulfilling
the architect’s brief and meeting the client’s high standards. The delivery and installation was carried out during the period of
Covid-19 lockdown restrictions, which required careful management, close liaison with all parties and rigid adherence to distancing guidelines, all of which were achieved to ensure the safety and wellbeing of site teams and the public.
Despite these challenges, the installation was completed within the short road possession period, and the project was delivered on budget to the client’s complete satisfaction.

The unique design of the bridge required a steel construction specialist with extensive skill and experience. Cleveland Bridge proved more than equal to the task, working closely with us and deploying the expertise of its engineers and fabricators to ensure the architect’s vision was transformed with
extreme accuracy into a truly stunning new structure for this landmark development.

Colin Arnold BCEGI Construction (UK) Ltd

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