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

Hover or tap markers for full details

A12 closures planned this week

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 44 minutes 30 seconds

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

A12 northbound Jct 14 to Jct 15 lane closure

Category: Road Maintenance

View update

A12 northbound Jct 23 to Jct 29 mobile lane closure

Planned Roadworks National Highways

Colchester A12 · A12 Northbound Between B1024 Near Kelvedon (North) And A120 Near Colchester (West)

Starts in 44 minutes 30 seconds

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

A12 northbound Jct 23 to Jct 29 mobile lane closure

Category: Road Maintenance

View update

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 44 minutes 30 seconds

Starts 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

View update

A12 northbound Jct 29 to Jct 33 mobile lane closures

Planned Roadworks National Highways

Ipswich A12 · A12 Northbound Within The B1070 Junction

Starts in 44 minutes 30 seconds

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

A12 northbound Jct 29 to Jct 33 mobile lane closures

Category: Road Maintenance

View update

Recently cleared on the A12

All live closures A12 closure history