As well as new roundabouts and junction improvements, the project included the construction of two key structures: the underpass at Cliffsend and the over-rail bridge at Cottington Road.
The Cliffsend underpass measured 25m wide, 6m high and 126m long and passed beneath a major railway line. Its roof was constructed 6m below the railway, with the structure sitting within a 15m-deep cutting on either side.
The Cottington Road over-rail bridge was a two-span reinforced concrete integral bridge carrying the new dual carriageway over Network Rail’s Channel Tunnel Rail Link, local high-speed rail infrastructure and a local road.
The development of innovative engineering solutions for these structures contributed to the scheme being delivered five months ahead of schedule.