M4 road closures & live traffic incidents

No live incident closures on the M4 right now, but 1 roadwork is currently in force.

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

Live incident

Active roadworks

Planned

Cleared

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M4 roadworks in force now

M4 eastbound lane 1 and lane 2 closure (81/3 to 80/4)

Planned Roadworks National Highways

West Berkshire M4 · M4 Eastbound Between J13 And J12

Expected to clear in 3 hours 29 minutes

Started 3 Aug 2026, 19:00 Expected clear 4 Aug 2026, 05:00

M4 eastbound lane 1 and lane 2 closure (81/3 to 80/4)

Category: Road Maintenance

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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 17 hours 29 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 17 hours 29 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