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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.

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M4 roadworks in force now

M4 eastbound Jct 19 to Jct 18 hardshoulder or single lane running (177/4 to 172/9)

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

Expected to clear in 4 hours 50 minutes

Started 31 Jul 2026, 20:09 Expected clear 1 Aug 2026, 05:00

M4 eastbound Jct 19 to Jct 18 hardshoulder or single lane running (177/4 to 172/9)

Category: Road Maintenance
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Recently cleared on the M4

All live closures M4 closure history