United Kingdom, June 9 -- Balfour Beatty VINCI have successfully slid the first part of a major 320-metre-long viaduct into position that will carry high speed trains across the M6 near Birmingham Airport. The first stage of the project - delivered this weekend - saw the 'East Deck' of the M6 South viaduct slid 119m out over a slip road adjacent to the motorway. To reduce disruption for motorists, the viaduct deck is being assembled to one side and slid across the motorway over three weekends, with each part pushed out before later sections are added behind them. This multi-stage process means that the weight of the deck will increase with each push from 1,3000 tonnes this weekend, to 3,290 for the final slide. These subsequent slides will ...