South Gloucestershire road closures: dozens of for motorists to avoid this week

South Gloucestershire's motorists will have 24 road closures to avoid nearby on the National Highways network this week.

And three of them are expected to cause moderate delays – with drivers facing holdups of between 10 minutes and half an hour.

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

• M48, from 2am July 14 to 6am November 21, slight delays (under 10 minutes): M48 eastbound, Severn Bridge lane closure 24 / seven for main cable inspection and bridge maintenance works.

• M48, from 7pm June 22 2022 to 6am January 23 2023, slight delays (under 10 minutes): M48 westbound, Severn Bridge - Lane closure for main cable inspection works.

• M48, from 7pm May 11 2022 to 6am April 7 2023, slight delays (under 10 minutes): M48 westbound, junction 1 to 2 Severn Bridge - carriageway closure for structure maintenance, diversion via M4 Prince of Wales bridge.

• M4, from 10pm May 23 2022 to 6am April 14 2023, slight delays (under 10 minutes): M4 westbound, junction 22 to 23 Prince of Wales Bridge - carriageway closure for structure maintenance, diversion via M48 Severn Bridge.

And a further 20 closures will begin over the next seven days:

• M4, from 9.30pm August 22 to 6am August 23, slight delays (under 10 minutes): M4 westbound, junction 18 to 20 lane closures for white lining works.

• A46, from 10pm August 22 to 6am August 23, slight delays (under 10 minutes): M4 both directions, junction 18 lane closures for horticultural works.

• M5, from 10pm August 22 to 5am August 23, moderate delays (10-30 minutes): M5 northbound, junction 17 to junction 15 Lane closures for Electrical works, diversion for M5 northbound to M4: M5 northbound to junction 14 and Return to junction 15, traffic entering at M5, junction 16 northbound, can access M4 as normal.

• M4, from 11pm August 23 to 6am August 24, slight delays (under 10 minutes): M4 westbound, junction 18 to 19 lane closures for white lining works.

• M5, from 11pm August 23 to 6am August 24, slight delays (under 10 minutes): M5 southbound, junction 17 to junction 18 - Lane closure for Graffiti Removal.

• A46, from 9pm August 24 to 6am August 25, slight delays (under 10 minutes): M4 Both Directions, junction 18 Lane closures for Electrical works.

• A4, from 10pm August 24 to 5am August 25, moderate delays (10-30 minutes): M5 both directions, junction 17 to 18 - carriageway closure for special order abnormal load convoy, diversion northbound, from M5 via M49, M4, M5, diversion northbound, from, junction 18 via M5, turn, junction 19, follow above route, diversion southbound, via M5, M4, M49.

• M4, from 11pm August 24 to 6am August 25, slight delays (under 10 minutes): M4 westbound, junction 18 to 19 lane closures for white lining works.

• M5, from 9pm August 25 to 6am August 26, slight delays (under 10 minutes): M5 northbound, junction 17 lane closure for barrier repairs.

• M4, from 11pm August 25 to 6am August 26, slight delays (under 10 minutes): M4 westbound, junction 18 to 19 lane closures for white lining works.

• M48, from 7.30am to 12.30pm on August 28, slight delays (under 10 minutes): M48 both directions Severn Bridge closed for Half Marathon event. Diversion via M4 Prince of Wales bridge.

• M32, from 10pm August 30 to 6am September 1, slight delays (under 10 minutes): M32 Both Directions M4, junction 19 to M32, junction 2 IPV for drainage works, Avoiding all other works.

• A4, from 11pm August 30 to 6am September 1, slight delays (under 10 minutes): M4 westbound, junction 20 to 22 carriageway closed for white lining works. Diversion via M5 southbound to junction 18 and M49 northbound to M4, junction 22. Contingency diversion route for M5 northbound, traffic via M4 eastbound to junction 19, M32 southbound, turn and return northbound, at, junction 1, M4 westbound to re-join main diversion route.

• M4, from 8pm September 1 to 6am September 2, slight delays (under 10 minutes): M4 westbound, junction 20 exit slip roads to the M5 closed for white lining works. Diversion via M4 westbound to junction 22, to turn and return eastbound.

• M32, from 9pm September 1 to 5am September 2, slight delays (under 10 minutes): M32 southbound, junction 1 to 2 - lane closure for electrical works.

• M4, from 10pm September 1 to 6am September 2, slight delays (under 10 minutes): M4 eastbound, junction 21 to 20 lane closure, including on the exit slip to the M5 northbound, for white lining works.

• M48, from 7pm September 2 to 6am September 5, moderate delays (10-30 minutes): M48 eastbound, Severn Bridge carriageway closed 24 / seven for main cable inspections and bridge maintenance works. Diversion via M4 Prince of Wales Bridge.

• M5, from 8pm September 5 to 6am September 6, slight delays (under 10 minutes): M5 southbound, junction 16 to 17 - lane closures for SMART motorway improvements.

• M5, from 8pm September 5 to 6am September 10, slight delays (under 10 minutes): M5 northbound, junction 18 to 17 lane closures including lane closure on, junction 17 northbound, entry slip road for SMART motorway improvements.

• M48, from 10pm September 5 to 6am September 7, slight delays (under 10 minutes): M48 both directions, junction 1 to M4, junction 21 - lane closures for central reservation works.

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