A12 road closures & live traffic incidents

No live incident closures on the A12 right now, but 1 roadwork is currently in force.

Live A12 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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A12 roadworks in force now

A12 northbound Jct 17 to Jct 23 mobile lane closures

Planned Roadworks National Highways

Chelmsford A12 · A12 Northbound Between A1114/A130 And A414 Near Chelmsford (East)

Expected to clear in 5 hours 22 minutes

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 04:00

A12 northbound Jct 17 to Jct 23 mobile lane closures

Category: Road Maintenance

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Recently cleared on the A12

A12 northbound Jct 14 to Jct 15 lane closure
Cleared

Cleared 32 minutes 46 seconds ago
A12 northbound Jct 29 to Jct 33 mobile lane closures
Cleared

Cleared 2 hours 37 minutes ago
A12 northbound Jct 23 to Jct 29 mobile lane closure
Cleared

Cleared 2 hours 37 minutes ago
A12 northbound Jct 29 to Jct 28 lane closure
Cleared

Cleared 1 day 18 hours ago
A12 northbound Jct 19 to 25 carriageway closure
Cleared

Cleared 2 days 19 hours ago
A12 northbound Jct 17 to Jct 23 mobile lane closures
Cleared

Cleared 2 days 20 hours ago
A12 northbound Jct 23 to Jct 29 mobile lane closure
Cleared

Cleared 3 days 2 hours ago
A12 northbound Jct 24 to Jct 25 lane closure (MP 147/0 to 150/2)
Cleared

Cleared 3 days 19 hours ago
A12 northbound Jct 17 to Jct 23 mobile lane closures
Cleared

Cleared 3 days 20 hours ago
A12 northbound Jct 17 to Jct 23 mobile lane closures
Cleared

Cleared 4 days 22 hours ago

All live closures A12 closure history