The archway under Lendal Bridge, which is blocked prior to the installation of a new flood gate Picture: Megi Rychlikova CONSTRUCTION work is set to start this month on four major flood defence schemes across York. More than five years after the devastating floods of December 2015, the Environment Agency has revealed that it is to: l Install a new, larger flood gate in an archway under Lendal Bridge. l Start building a new flood wall in Bishopthorpe. l Create a site compound in the Marygate car park to begin work on raising the height of flood walls, gates and an embankment.