M3 road closures & live traffic incidents

No live incident closures on the M3 right now, but 1 roadwork is 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 Jct 10 to Jct 8 carriageway closure

Planned Roadworks National Highways

Winchester M3 · M3 Eastbound Between J9 And J8

Expected to clear in 3 hours 22 minutes

Started 3 Aug 2026, 20:00 Expected clear 4 Aug 2026, 05:00

M3 northbound Jct 10 to Jct 8 carriageway closure

Category: Construction Work

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Recently cleared on the M3

M3 northbound Jct 4 Lane 1 closure on exit slip road
Cleared

Cleared 1 hour 52 minutes ago
M3 northbound Jct 4 Lane 1 closure on exit slip road
Cleared

Cleared 4 hours 12 minutes ago
M3 northbound lane 1 and lane 2 closure (43/0 to 41/1)
Cleared

Cleared 2 days 20 hours ago
M3 northbound lane 1 and 2 closure (50/0 to 46/3)
Cleared

Cleared 4 days 22 hours ago
M3 northbound lane 1 and 2 closure (73/0 to 70/8)
Cleared

Cleared 5 days 12 minutes ago
M3 northbound lane 1 and 2 closure (50/0 to 46/3)
Cleared

Cleared 5 days 2 hours ago
M3 northbound lane 1 and 2 closure (50/0 to 46/3)
Cleared

Cleared 5 days 3 hours ago
M3 northbound lane 1 and lane 2 closure (43/0 to 41/1)
Cleared

Cleared 5 days 5 hours ago
M3 northbound lane 1 and lane 2 closure (43/0 to 41/1)
Cleared

Cleared 5 days 5 hours ago
M3 northbound lane 1 and 2 closure (73/0 to 70/8)
Cleared

Cleared 5 days 6 hours ago

All live closures M3 closure history