M3 road closures & live traffic incidents

No live closures are reported on the M3 right now.

Live M3 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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M3 closures planned this week

M3 northbound hard shouder closure (62/3 to 60/0)

Planned Roadworks National Highways

Harley Wintney M3 · M3 Eastbound Between J5 And J4A

Starts in 3 minutes 36 seconds

Starts 7 Jul 2026, 08:00 Expected clear 7 Jul 2026, 15:00

M3 northbound hard shouder closure (62/3 to 60/0)

Category: Road Maintenance

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M3 northbound lane 1 and 2 closure (50/2 to 47/1)

Planned Roadworks National Highways

Bagshot M3 · M3 Eastbound Between J4 And J3

Starts in 11 hours 3 minutes

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

M3 northbound lane 1 and 2 closure (50/2 to 47/1)

Category: Road Maintenance

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Recently cleared on the M3

All live closures M3 closure history