A decision on the £9 billion Lower Thames Crossing may not be made until May. Transport Secretary Louise Haigh said in a written statement to Parliament it was “necessary” to extend the deadline for a decision on the controversial route – which would have provided a link, under the Thames, from east of Gravesend to the M25 in Essex. Ms Haigh said the decision would give more time for the application to be considered, including “any decisions made as part of the spending review”. The initial deadline for a decision on whether to grant a development consent order enabling National Highways to bu…