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Updated twice daily · National Highways

Overnight road closures

Planned full closures on England's motorways and major A roads. Most run 20:00–06:00.

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5 nights published — tap any night to see what is shut
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Full road closures only 0 of 3 Hide slip roads and laybys — show only what forces a change of route.

3 closures across England on the M4 · sun 11 oct · clear filters

Where the work is

3 of 3 pinned
Motorway A road Long-running scheme Tap a cluster to zoom in

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Motorways
M33M43M53M62M252M421M535M573M6013M611M625
A roads
A118A1(M)4A21A32A51A273A301A361A382A451A461A472A521A622A641A1621A1741A2821A3031A4172A5001A5901A6161A51031
M4 Jct 19 to 20 - carriageway closed WB Full carriageway Overnight Shut now 21:30 – 06:00 tap for detail

The M4 westbound carriageway is closed now, from 21:30 until 06:00 sun 11 oct — about 8.5 hours.
You will need another route — the main carriageway is shut.

RoadM4
DirectionWestbound
Closed21:30 – 06:00
What's shutFull carriageway
RegionSouth East

Exactly where

M4 westbound Jct 19 to 20 - carriageway closed

Why the road is closed

M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closure for structure maintenance.

Diversion route

Diversion via M5 southbound, exit Jct 16 to turn and return M5 northbound.

📍 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 →
M4 Jct 19 entry slip road closed WB Entry slip only Overnight Shut now 21:30 – 06:00 tap for detail

The M4 westbound entry slip road is closed now, from 21:30 until 06:00 sun 11 oct — about 8.5 hours.
The road stays open. You cannot join here — use the next junction.

Also closed on

Sun 11 Oct Thu 15 Oct

RoadM4
DirectionWestbound
Closed21:30 – 06:00
What's shutEntry slip only
RegionSouth East

Exactly where

M4 westbound Jct 19 entry slip road closed

Why the road is closed

M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closure for structure maintenance.

Diversion route

Diversion via M5 southbound, exit Jct 16 to turn and return M5 northbound.

📍 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 →
M4 Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed NB Exit slip only Long-running scheme Shut now 22:00 Sun – 06:00 Sat tap for detail

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.

Also closed on

Sun 11 Oct Tonight Tomorrow Wed 14 Oct Thu 15 Oct

RoadM4
DirectionNorthbound
Closed22:00 Sun – 06:00 Sat
What's shutExit slip only
RegionSouth East

Exactly where

M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed

Why the road is closed

M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closure for structure maintenance.

Diversion route

Diversion via M5 southbound, exit Jct 16 to turn and return M5 northbound.

Part of a scheme running until 5 Dec 2026

📍 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 →
🔍
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