Architecture firm Foster + Partners has developed a proposal for repairing London's Hammersmith Bridge while reopening it by inserting a separate double-decker road raised over the original structure.
An extra deck would allow vehicle traffic to drive over the top of a pedestrian and cycle path, freeing up space for workmen to carry out essential repairs.
The temporary crossing, which wouldn't rest on the bridge, could be built in two parts and inserted across the bridge from both sides to meet in the middle.
Supported by truss structures on both sides, it would allow the bridge, which is currently closed, to reopen to pedestrians and vehicles while repairs are made.
Using the decks as a platform, workers could remove sections of the Grade II*-listed bridge and ferry them away on barges for specialist repairs. Raised decks would be supported either side and meet in the middle
Foster + Partners has presented the proposal to Hammersmith and Fulham Council, which has been struggling to raise funds needed to repair the 133-year-old bridge.
"We believe that our concept resolves the two challenges for Hammersmith Bridge economically and efficiently," said Foster + Partners head of structural engineering Roger Ridsdill Smith.
"Delivering a temporary crossing quickly, whilst providing a safe support to access and refurbish the existing bridge."
Hammersmith Bridge over the Thames has been closed since 13 August 2020 as it was deemed unsafe. Sensors placed on the ...