Drivers in and around North Somerset will have six National Highways road closures to watch out for this week.

And one of them is expected to cause delays of between 10 minutes and half an hour.

The latest expected works list, with notes from National Highways, shows that two closures already in place are expected to carry on this week:

• M5, from 8pm May 12 to 6am June 4, slight delays (under 10 minutes): M5 southbound, junction 20 to junction 21 lane closures for survey works.

• M5, from 8pm May 12 to 6am June 4, slight delays (under 10 minutes): M5 northbound, junction 22 to junction 20 lane closures for survey works.

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

• M5, from 8pm May 20 to 6am May 21, slight delays (under 10 minutes): M5 northbound and southbound, junction 21 lane closure on both exit slips installed by North Somerset Council.

• M5, from 9pm May 22 to 6am May 23, moderate delays (10-30 minutes): M5 southbound, junction 20 exit slip road closure for electrical works, diversion via M5 southbound to junction 21 and return.

• M5, from 9pm May 22 to 6am May 23, slight delays (under 10 minutes): M5 southbound, junction 21 lane closure for electrical works.

• A4, from 9pm May 23 to 6am May 24, slight delays (under 10 minutes): M5 southbound, junction 19 entry slip closed for for electrical works, diversion via, junction 18, Portway roundabout, junction 18 southbound, entry slip to travel south.

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