Drivers in Dartford should prepare for 10 National Highways road closures this July, potentially causing delays of 10 to 30 minutes.

National Highways are responsible for maintaining motorways and major A-roads, so smaller road closures are not included in their plans.

Below is the list of closures, including both current and upcoming ones:

• A2, from 12.05am June 17 to 12.05am August 30, slight delays (under 10 minutes): A2 eastbound and westbound, Off network, temporary speed limit reduction from 50mph to 40mph. 24/7 for this period.

• A282, from 10pm July 1 to 5.30am August 1, slight delays (under 10 minutes): A282 northbound, Dartford Crossing West Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm July 1 to 5.30am July 4, slight delays (under 10 minutes): M25 clockwise, junction 1A Roundabout, Lane closure for electrical works

• A282, from 10pm July 4 to 5.30am July 6, moderate delays (10-30 minutes): A282 northbound, East Tunnel, East Tunnel closure for waterproofing works, diversion via National Highways network.

• A282, from 8pm July 6 to 10am July 7, slight delays (under 10 minutes): A282 northbound, Dartford Crossing West Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm July 7 to 5am July 8, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm July 9 to 5.30am July 13, slight delays (under 10 minutes): M25, junction 1A, Lane closures for electrical works.

• A282, from 10pm July 13 to 5am July 14, slight delays (under 10 minutes): A282 northbound, Dartford Crossing West Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm July 14 to 5am July 15, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A13, from 10pm July 15 to 5am July 18, moderate delays (10-30 minutes): A13 eastbound, junction Mardyke to junction A1012, Lane and Full carriageway closure for electrical works, diversion via National Highways roads.