Drivers around Dartford can expect 12 National Highways road closures in the upcoming weeks.

Motorists could face hold-ups lasting between 10 and 30 minutes.

National Highways maintain motorways and major A-roads, so smaller road shutdowns are not on their schedule.

Here is the list of closures – with some already in place and some upcoming.

• A282, from 10pm August 4 to 5am August 5, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm August 1 to 5.30am August 23, moderate delays (10-30 minutes): A282 northbound, West Tunnel closure, carriageway and slip road closure for tunnel works, diversion via National Highways roads.

• 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.

• A2, from 8pm July 22 to 6am August 31, slight delays (under 10 minutes): A2 both directions Bean to Tollgate, slip road and diversion for bridge works.

And a further eight closures will begin over the next two weeks:

• A282, from 8pm August 10 to 10am August 11, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A2, from 10pm August 10 to 5.30am August 12, moderate delays (10-30 minutes): A2 westbound, Darenth Interchange to Old Bexley Lane, Lane, link road, slip road and carriageway closure for resurfacing works, diversion via National Highways and local authority network.

• A282, from 10pm August 11 to 5am August 12, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A2, from 10pm August 14 to 6am August 24, moderate delays (10-30 minutes): A2 both directions Bexleyheath to Pepperhill, carriageway closures for surface works.

• A13, from 10pm August 14 to 5am August 16, slight delays (under 10 minutes): M25 anti-clockwise, junction 31 to junction 30, Lane closure for barrier works.

• A282, from 10pm August 17 to 5am August 18, slight delays (under 10 minutes): A282 northbound, Dartford Crossing West Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A282, from 10pm August 18 to 5am August 19, slight delays (under 10 minutes): A282 northbound, Dartford Crossing East Tunnel, Tunnel closure for maintenance works, diversion via National Highways network.

• A2, from 10pm August 19 to 5am November 1, slight delays (under 10 minutes): A2 westbound, Old Bexley Lane, 24 Hour 40mph speed limit for VRS works.