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Planned full closures on England's motorways and major A roads. Most run 20:00–06:00.
9 closures in the South West on the M4 · thu 15 oct · clear filters
The M4 eastbound carriageway is closed from 20:00 until 06:00 thu 15 oct — about 10 hours.
You will need another route — the main carriageway is shut.
Tomorrow Wed 14 Oct Thu 15 Oct
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 21:00 until 06:00 thu 15 oct — about 9 hours.
You will need another route — the main carriageway is shut.
M4 westbound Jct 19 to Jct 20 carriageway closure
M4 westbound Jct 19 to Jct 20 carriageway closure carriageway reconstruction.
Diversion via M32 Jct 1, A4174, A38, M5
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The M4 northbound 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.
Sun 11 Oct Tonight Tomorrow Wed 14 Oct Thu 15 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 →
The M4 eastbound entry slip road is closed from 21:00 until 06:00 thu 15 oct — about 9 hours.
The road stays open. You cannot join here — use the next junction.
M4 eastbound Jct 17 entry slip closure
M4 eastbound Jct 17 entry slip road closure, for barrier repairs
Diversion to Jct 18 and return
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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 from 21:00 until 06:00 thu 15 oct — about 9 hours.
The road stays open. You cannot come off here — carry on to the next junction.
M4 westbound Jct 10 exit slip road closure
M4 westbound Jct 10 - slip road and lane closure for maintenance work.
National Highways have not published a diversion for this closure. Follow the signs on the road — and if you are driving an HGV, check the route suits your height and weight before committing to it.
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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 southbound entry slip road is closed from 21:00 until 06:00 thu 15 oct — about 9 hours.
The road stays open. You cannot join here — use the next junction.
M4 eastbound Jct 10 entry slip road closure (from A329M southbound)
M4 eastbound Jct 10 - slip road closure for maintenance work
National Highways have not published a diversion for this closure. Follow the signs on the road — and if you are driving an HGV, check the route suits your height and weight before committing to it.
💬 Share on WhatsApp 📍 Open in Maps All M4 closures More in South East
🔔 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 entry slip road is closed from 21:00 until 06:00 thu 15 oct — about 9 hours.
The road stays open. You cannot join here — use the next junction.
M4 westbound Jct 19 entry slip road closed
M4 westbound Jct 19 to Jct 20 carriageway closure carriageway reconstruction.
Diversion via M32 Jct 1, A4174, A38, M5
💬 Share on WhatsApp 📍 Open in Maps All M4 closures More in South East
🔔 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 eastbound exit slip road is closed from 22:00 until 05:30 thu 15 oct — about 7.5 hours.
The road stays open. You cannot come off here — carry on to the next junction.
Tonight Tomorrow Wed 14 Oct Thu 15 Oct
M4 Eastbound Jct 2 exit slip road closure
M4 Eastbound Jct 3 to Jct 2 Slip road and lane closure for concrete work
Diversion via Local Authority and National highway network
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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 eastbound carriageway is closed from 22:00 until 05:30 thu 15 oct — about 7.5 hours.
You will need another route — the main carriageway is shut.
M4 Eastbound and Westbound Jct 4B to M25 Clockwise Jct 15 link road closure
M4 Eastbound and Westbound Jct 4B to M25 Clockwise Jct 15 Lane and link road closure for urgent safety fence repairs
Diversion via National Highways Network
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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 →