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 11 to Jct 12 lane 1 switching

Planned Roadworks National Highways

Brentwood A12 · A12 Northbound Exit For A1023

Starts in 9 hours 33 seconds

Starts 24 Aug 2026, 20:00 Expected clear 25 Aug 2026, 04:00

A12 northbound Jct 11 to Jct 12 lane 1 switching

Category: Road Maintenance

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A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)

Planned Roadworks National Highways

Brentwood A12 · A12 Northbound Between A1023 And B1002

Starts in 9 hours 33 seconds

Starts 24 Aug 2026, 20:00 Expected clear 25 Aug 2026, 04:00

A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)

Category: Road Maintenance

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A12 northbound Jct 31 to Jct 32 lane 2 closure (MP 176/4 to 180/4)

Planned Roadworks National Highways

Ipswich A12 · A12 Northbound Between B1070 And A14

Starts in 9 hours 33 seconds

Starts 24 Aug 2026, 20:00 Expected clear 25 Aug 2026, 04:00

A12 northbound Jct 31 to Jct 32 lane 2 closure (MP 176/4 to 180/4)

Category: Construction Work

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A12 northbound Jct 11 to Jct 12 lane 1 closure (MP 106/0 to 107/7)

Planned Roadworks National Highways

Brentwood A12 · A12 Northbound Between M25 And A1023

Starts in 9 hours 33 seconds

Starts 24 Aug 2026, 20:00 Expected clear 25 Aug 2026, 04:00

A12 northbound Jct 11 to Jct 12 lane 1 closure (MP 106/0 to 107/7)

Category: Road Maintenance

View update

Recently cleared on the A12

All live closures A12 closure history