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Planned full closures on England's motorways and major A roads. Most run 20:00–06:00.
3 closures in the South West on the M4 · tomorrow · clear filters
The M4 eastbound carriageway is closed from 21:00 until 06:00 tomorrow — about 9 hours.
You will need another route — the main carriageway is shut.
M4 eastbound Jct 18 between exit and entry slip road carriageway closure
M4 eastbound Jct 18 between exit and entry slip roads - carriageway closure for resurfacing
Diversion via exit and entry slip roads
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The M4 westbound carriageway is closed from 22:00 until 06:00 tomorrow — about 8 hours.
You will need another route — the main carriageway is shut.
M4 westbound Jct 21 to 23 Prince of Wales Bridge carriageway closure
M4 westbound Jct 21 to 23 Prince of Wales bridge carriageway closure for structure maintenance.
Diversion via M48 westbound. For M49 northbound traffic diversion via M4 eastbound to Jct 20, M5 southbound Jct 16 exit slip, M5 northbound, M4 westbound and M48.
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🔔 Get told before this happens again Early Warning alerts you the moment the M4 closes or backs up — straight to your phone. Set up →
The M4 westbound exit slip road is closed now, from 22:00 on Sunday until 06:00 on Saturday — about 1305 hours.
The road stays open. You cannot come off here — carry on to the next junction.
Tonight Tomorrow Thu 22 Oct Fri 23 Oct Sat 24 Oct Sun 25 Oct
M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed
M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closure for structure maintenance.
Diversion via M5 southbound, exit Jct 16 to turn and return M5 northbound.
Part of a scheme running until 5 Dec 2026
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🔔 Get told before this happens again Early Warning alerts you the moment the M4 closes or backs up — straight to your phone. Set up →
Source: National Highways daily closure report,
imported twice daily. Closures are subject to change at short notice, especially in poor weather —
always follow the signs on the road.
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