M3 road closures & live traffic incidents

No live incident closures on the M3 right now, but 2 roadworks are currently in force.

Live M3 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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M3 roadworks in force now

M3 northbound lane 1 and 2 closure (50/0 to 46/3)

Planned Roadworks National Highways

Bagshot M3 · M3 Eastbound Between J4 And J3

Expected to clear in 8 hours 52 minutes

Started 29 Jul 2026, 20:00 Expected clear 30 Jul 2026, 05:00

M3 northbound lane 1 and 2 closure (50/0 to 46/3)

Category: Road Maintenance

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M3 northbound lane 1 and lane 2 closure (43/0 to 41/1)

Active Roadworks National Highways

Bagshot M3 · M3 Eastbound Between J3 And J2

Expected to clear in 8 hours 52 minutes

Started 29 Jul 2026, 19:23 Expected clear 30 Jul 2026, 05:00

M3 northbound lane 1 and lane 2 closure (43/0 to 41/1)

Category: Road Maintenance

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Recently cleared on the M3

All live closures M3 closure history