United Kingdom, Sept. 29 -- Balfour Beatty VINCI engineers have reopened the M6 ahead of schedule after sliding part of a huge new HS2 viaduct across the busy motorway.Over the weekend, the 230-metre long East Deck was moved into position over the M6 during a planned closure of the northbound and southbound carriageways near Birmingham Airport.For the first time on the HS2 project in the West Midlands, the team used a 'fully restrained' sliding technique on Friday before the closure, allowing the viaduct to launch over the M6 Junction 4 slip road, while maintaining traffic on the carriageway below. This new approach was introduced in collaboration with National Highways, to reduce the time of the operation and further minimise the impact on...