Description: M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 :, Start time: 27/04/2026 6:00 , End Date: 30/11/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 6:00
Nearest town: 11.08 miles from Pen y lan.

Location: southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane Closures : The hard shoulder is closed.
Due to: Roadworks.
Period : expect disruption until 17:00 on 1 May 2026.
Nearest town: 16.92 miles from Pen y lan.

Location: northbound between junctions J20 (Nailsea) and J19 (Portishead) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.05 miles from Pen y lan.

Location: southbound exit slip at junction J21 (Weston super Mare) .
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.9 miles from Pen y lan.

Location: southbound between junctions J20 (Nailsea) and J21 (Weston super Mare) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 15.06 miles from Pen y lan.

Location: southbound exit slip at junction J21 (Weston super Mare) .
Due to: Roadworks scheme.
Period : from 21:05 on 27 April 2026 to 06:00 on 29 April 2026.
Nearest town: 14.9 miles from Pen y lan.

Location: southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 15.59 miles from Pen y lan.

Location: northbound at junction J20 (Nailsea) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 14.85 miles from Pen y lan.

Location: northbound between junctions J20 (Nailsea) and J19 (Portishead) .
Due to: Roadworks scheme.
Period : from 20:14 on 27 April 2026 to 06:00 on 29 April 2026.
Nearest town: 14.85 miles from Pen y lan.

Location: northbound between junctions J20 (Nailsea) and J19 (Portishead) .
Lane Closures : Lanes 2, 3 and 4 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 14.92 miles from Pen y lan.

Location: northbound between junctions J20 (Nailsea) and J19 (Portishead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.26 miles from Pen y lan.

Location: southbound between junctions J20 (Nailsea) and J22 (Burnham on Sea) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 4 May 2026 to 06:00 on 5 May 2026.
Schedule : From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 6 May 2026 to 8 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.06 miles from Pen y lan.

Location: northbound at junction J20 (Nailsea) .
Lane Closures : The hard shoulder and lane 1 are closed.
Due to: Emergency Roadside Drains works.
Period : expect disruption until 04:00 on 29 April 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 14.83 miles from Pen y lan.

Location: southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 19.2 miles from Pen y lan.

Location: southbound at junction J19 (Portishead) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 19.86 miles from Pen y lan.

Location: northbound between junctions J22 (Burnham on Sea) and J20 (Nailsea) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 16.15 miles from Pen y lan.
