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

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M4 closures planned this week

M4 eastbound lane 1 and lane 2 closure ( 50/6 to 49/5)

Planned Roadworks National Highways

Windsor And Maidenhead M4 · M4 Eastbound Between J10 And J8

Starts in 16 hours 12 minutes

Starts 4 Aug 2026, 19:00 Expected clear 5 Aug 2026, 05:00

M4 eastbound lane 1 and lane 2 closure ( 50/6 to 49/5)

Category: Road Maintenance

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M4 eastbound lane 1 closure (99/4 to 98/7)

Planned Roadworks National Highways

West Berkshire M4 · M4 Eastbound Between J14 And J13

Starts in 16 hours 12 minutes

Starts 4 Aug 2026, 19:00 Expected clear 5 Aug 2026, 05:00

M4 eastbound lane 1 closure (99/4 to 98/7)

Category: Road Maintenance

View update

Recently cleared on the M4

All live closures M4 closure history