A temporary ramp has allowed traffic to use a critical M25 bridge during refurbishment work.
Connect Plus used the system to install new expansion joints on the Queen Elizabeth II Bridge at Dartford in east London.
Working with designer Flint & Neill and contractor Jackson Civils, Connect Plus created a modular ramp comprised of 1.2m-wide units.
This allowed vehicles to travel safely at speeds of up to 70mph, negating the need for vehicles to slow below the speed limit on the bridge.
Connect Plus replaced six end-of-lifecycle bridge expansion joints on the main bridge, weighing 80 tonnes each.
More than 30M vehicles have driven over the temporary ramp, which will be used again on the motorway.
Connect Plus services managing director Brian Johns said: “The use of the temporary over ramps on the QEII Bridge has allowed traffic to pass over the bridge with far less interruption than would have been the case with traditional roadworks, and has improved safety for both the road user and road worker for the duration of the works.
“So successful has the temporary ramp system been that we now plan to use the same system to replace movement joints at other locations on the M25 network during the duration of [our] 30-year design, build, finance and operate contract.”