A12 road closures & live traffic incidents

No live closures are reported on the A12 right now.

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 closures planned this week

A12 northbound Jct 55 lane 2 closure

Planned Roadworks National Highways

Ipswich A12 · A12 Northbound Between B1070 And A14

Starts in 8 hours 34 minutes

Starts 13 Oct 2026, 19:00 Expected clear 14 Oct 2026, 05:00

A12 northbound Jct 55 lane 2 closure

Category: Road Maintenance

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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)

Starts in 9 hours 34 minutes

Starts 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 04:00

A12 northbound Jct 17 to Jct 23 mobile lane closures

Category: Road Maintenance

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A12 southbound Jct 12 exit slip lane 2 closure

Planned Roadworks National Highways

Brentwood A12 · A12 Southbound Between B1002 And A1023

Starts in 9 hours 34 minutes

Starts 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 04:00

A12 southbound Jct 12 exit slip lane 2 closure

Category: Road Maintenance

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A12 northbound Jct 14 to Jct 15 lane closure

Planned Roadworks National Highways

Chelmsford A12 · A12 Northbound Between B1002 And A414 Near Chelmsford (West)

Starts in 9 hours 34 minutes

Starts 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 04:00

A12 northbound Jct 14 to Jct 15 lane closure

Category: Road Maintenance

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Recently cleared on the A12

All live closures A12 closure history