Drivers in and around St Albans will have 10 National Highways road closures to watch out for this week, with two of them are expected to cause delays of between 10 and 30 minutes.

The latest expected works list, with notes from National Highways, shows that 10 closures are due to start over the next two weeks:

• A1, from 10pm July 8 to 6am July 13, moderate delays (10-30 minutes): A1(M) northbound, junction 1 to junction 3, Lane closures, slip road closure and carriageway closure for concrete repair works, diversion via National Highways and local authority roads.

• M1, from 10pm July 8 to 5.30am July 17, moderate delays (10-30 minutes): M1 northbound, junction 5 to junction 6, Lane and slip road closure for Sign works, diversion via Local Authorities.

• M25, from 10pm July 11 to 5am July 12, slight delays (under 10 minutes): M25 Anticlockwise, junction 22 to junction 21A, Lane closure for technology works.

• M25, from 10pm July 15 to 5am July 16, slight delays (under 10 minutes): M25 clockwise, junction 21A to junction 22, Lane closure for Bridge structure inspections.

• M25, from 10pm July 16 to 5am July 17, slight delays (under 10 minutes): M25 clockwise, junction 21A to junction 22, Lane closure for bridge structure inspections.

• M25, from 10pm July 17 to 5am July 18, slight delays (under 10 minutes): M25 Anticlockwise, junction 22 to junction 21A, Lane closure for Bridge structure inspections.

• M25, from 10pm July 18 to 5am July 19, slight delays (under 10 minutes): M25 anti clockwise, junction 21A to junction 21, Lane closures for technology replacement works.

• M1, from 10pm July 22 to 5am July 23, slight delays (under 10 minutes): M1 southbound,, junction 10 to junction 9 - lane closures for carriageway - reconstruction/renewal on behalf of National Highways.

• M1, from 10pm July 22 to 5am July 27, slight delays (under 10 minutes): M1 both directions, junction 6A to junction 9 - lane closures due to inspection/survey works on behalf of National Highways.

• M25, from 10pm July 22 to 5am July 23, slight delays (under 10 minutes): M25 anti-Clockwie, junction 22 to junction 21, Lane closure for routine works.

National Highways is responsible for maintaining motorways and major A-roads, so closures of smaller roads will not be included in their schedule.