Drivers in and around St Albans will have 16 National Highways road closures to watch out for this week.

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 four closures already in place are expected to carry on this week:

• M1, from 10.30pm September 1 to 5am September 2, slight delays (under 10 minutes): M1 southbound, junction 8 to junction 6A, Lane closure for urgent safety fence repairs.

• M1, from 10pm September 1 to 5am September 2, slight delays (under 10 minutes): M1 northbound, junction 6 to junction 6A, lane closure for urgent safety fence repairs.

• A414, from 9.30am August 20 to 4pm September 6, slight delays (under 10 minutes): M1 both directions, junction 10 to 6A - mobile works for horticulture cutting and planting on behalf of National Highways.

• A414, from 10pm August 19 to 5am October 12, slight delays (under 10 minutes): M1 both directions, junction 6A to junction 11 - lane closures due to electrical works on behalf of National Highways.

A further 12 closures will begin over the next two weeks:

• M25, from 10pm September 2 to 5am September 3, slight delays (under 10 minutes): M25 Anticlockwise, junction 22 to junction 21A, Lane closure for Bridge structure inspections.

• A1081, from 10pm September 2 to 5am September 3, slight delays (under 10 minutes): M1 southbound,, junction 9 - entry slip road closure and diversion route due to horticulture - cutting and planting works on behalf of Ringway.

• A414, from 10pm September 3 to 5am September 4, moderate delays (10-30 minutes): M1 southbound,, junction 9 to junction 7 - carriageway closure, lane closure and diversion route for communications on behalf of National Highways.

• M1, from 10pm September 3 to 5am September 4, slight delays (under 10 minutes): M1 northbound, junction 5 to junction 6, Lane closures for maintenance works.

• M1, from 10pm September 3 to 5am September 4, slight delays (under 10 minutes): M1 southbound, junction 6 to junction 5, Lane closures for maintenance works.

• M1, from 10pm September 5 to 5am September 6, slight delays (under 10 minutes): M1 southbound, junction 6 to junction 5, Lane closures for maintenance works.

• M1, from 10pm September 5 to 5am September 6, slight delays (under 10 minutes): M1 northbound, junction 5 to junction 6, Lane closures for maintenance works.

• A414, from 10pm September 5 to 5am September 6, slight delays (under 10 minutes): M1 northbound, junction 9 - entry slip road closure and diversion route for barrier/fence safety repairs on behalf of National Highways.

• M1, from 10pm September 9 to 5am September 10, slight delays (under 10 minutes): M1 southbound, junction 9 to junction 8 - hard shoulder closure and lane closures due to communications works on behalf of National Highways.

• M25, from 10pm September 9 to 5am September 10, slight delays (under 10 minutes): M25 Anticlockwise, junction 22 to junction 21, Lane closure for Electrical works.

• M1, from 10pm September 16 to 6am September 21, moderate delays (10-30 minutes): M1 northbound, junction 5 to junction 6, carriageway closure for surfacing work, diversion via National Highways and Local Authorities roads.

• M25, from 10pm September 16 to 6am September 21, slight delays (under 10 minutes): M25 anticlockwise, junction 22 to junction 21A, Lane closure for gantry upgrade.