Drivers are being urged to plan ahead as a month of road closures is announced on a busy route between Kent and Essex. The Dartford Crossing is set to be shut overnight throughout June for essential maintenance works. The closures are to allow for repairs to key electrical equipment in the east tunnel and to repaint the steelwork on a bridge near the A282 Junction 1a to protect it from corrosion. The roads will be shut overnight on weeknights from Monday (June 3) to Friday, June 21. The A282 northbound carriageway – between M25 junction 2 and junction 1a – will be closed between 10pm and 5.30a…