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M4 road closures & live traffic incidents

No live closures are reported on the M4 right now.

Live M4 updates from National Highways and Traffic Wales: incident closures, roadworks in force, planned closures for the week ahead and recently cleared disruption.

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Active roadworks
Planned
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M4 closures planned this week

M4 eastbound lane 3 closure ( 88/5 to 85/1)

Planned Roadworks National Highways
West Berkshire M4 · M4 Eastbound Between J13 And J12

Starts in 5 hours

Starts 7 Jul 2026, 19:00 Expected clear 8 Jul 2026, 05:00

M4 eastbound lane 3 closure ( 88/5 to 85/1)

Category: Road Maintenance
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M4 eastbound lane 1, 2 and 3 closure (47/0 - 41/6)

Planned Roadworks National Highways
Windsor And Maidenhead M4 · Roundabout At M4 J8/A404(M) J9/A308(M)

Starts in 5 hours

Starts 7 Jul 2026, 19:00 Expected clear 8 Jul 2026, 05:00

M4 eastbound lane 1, 2 and 3 closure (47/0 - 41/6)

Category: Road Maintenance
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M4 eastbound lane 1, 2 and 3 closure (47/0 - 41/6)

Planned Roadworks National Highways
Windsor And Maidenhead M4 · M4 J8 Eastbound Exit

Starts in 5 hours

Starts 7 Jul 2026, 19:00 Expected clear 8 Jul 2026, 05:00

M4 eastbound lane 1, 2 and 3 closure (47/0 - 41/6)

Category: Road Maintenance
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M4 eastbound Jct 23 to 22 lane 1 and 2 closed (203/3B to 195/7B)

Planned Roadworks National Highways
Monmouthshire M4 · M4 Eastbound Within J22

Starts in 5 hours

Starts 7 Jul 2026, 19:00 Expected clear 8 Jul 2026, 05:00

M4 eastbound Jct 23 to 22 lane 1 and 2 closed (203/3B to 195/7B)

Category: Road Maintenance
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M4 eastbound Jct 19 to Jct 18 lane 3&2 leading to hardshoulder running (179/7 to 175/4)

Planned Roadworks National Highways
South Gloucestershire M4 · M4 Eastbound Between J19 And J18

Starts in 5 hours 9 minutes

Starts 7 Jul 2026, 19:09 Expected clear 8 Jul 2026, 05:00

M4 eastbound Jct 19 to Jct 18 lane 3&2 leading to hardshoulder running (179/7 to 175/4)

Category: Road Maintenance
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M4 Jct 10 Slip 7 road closure

Planned Roadworks National Highways
Wokingham M4 · Link Road From M4 J10 Eastbound To A329(M) Eastbound

Starts in 6 hours

Starts 7 Jul 2026, 20:00 Expected clear 8 Jul 2026, 05:00

M4 Jct 10 Slip 7 road closure

Category: Road Maintenance
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M4 eastbound Jct 8/9 entry slip road closure

Planned Roadworks National Highways
Windsor And Maidenhead M4 · M4 J8 Eastbound Exit

Starts in 6 hours

Starts 7 Jul 2026, 20:00 Expected clear 8 Jul 2026, 05:00

M4 eastbound Jct 8/9 entry slip road closure

Category: Road Maintenance
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Recently cleared on the M4

All live closures M4 closure history