Is the A12 closed? Quick answers
Checked 13:58 on Tuesday 3 November 2026.
Is the A12 closed tonight?
No full closures. The A12 stays open tonight (Tue 3 Nov, 18:00 to 06:00). 4 lane or slip road closures are planned: northbound Jct 29 entry slip carriageway closure, 21:00 to 05:00; and southbound Jct 18 exit slip road closure, 21:00 to 23:00 and 2 more.
Tonight's A12 closures ›Is the A12 closed this weekend?
Yes. The A12 has 1 full closure planned this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00): southbound Jct 21 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 3 lane or slip road closures.
This weekend's A12 closures ›Are there roadworks on the A12 right now?
No. Nothing is running on the A12 at 13:58.
Works running now ›From National Highways' closure report and live feed. Full closure means the carriageway is shut; lane and slip road closures leave it open. Times can change, so check before you set off.
A12 closures tonightTue 3 Nov, 18:00 to 06:00
No full closures. The A12 stays open tonight (Tue 3 Nov, 18:00 to 06:00). 4 lane or slip road closures are planned: northbound Jct 29 entry slip carriageway closure, 21:00 to 05:00; and southbound Jct 18 exit slip road closure, 21:00 to 23:00 and 2 more.
Slip road closureNorthbound21:00 to 05:00
Jct 29 entry slip carriageway closure
Overall Scheme Details: A12 both directions
Jct 29 - carriageway closure for drainage works on behalf of National Highways
Slip road closureSouthbound21:00 to 23:00
Jct 18 exit slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Slip road closureSouthbound23:00 to 02:00
Jct 18 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Slip road closureSouthbound02:00 to 05:00
Jct 17 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
A12 closures this weekendFri 6 Nov 18:00 to Mon 9 Nov 06:00
Yes. The A12 has 1 full closure planned this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00): southbound Jct 21 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 3 lane or slip road closures.
Full closureSouthboundFri 6 Nov, 21:00 to 05:00
Jct 21 to 19 carriageway closure
Overall Scheme Details: A12 southbound
Hatfield Peverel to Junction 22 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureNorthboundFri 6 Nov, 21:00 to 05:00
Jct 29 entry slip carriageway closure
Overall Scheme Details: A12 both directions
Jct 29 - carriageway closure for drainage works on behalf of National Highways
Lane closureSouthboundFri 6 Nov, 21:00 to 05:00
Jct 25 carriageway cloure
Overall Scheme Details: A12 southbound
Hatfield Peverel to Junction 22 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureNorthboundSat 7 Nov, 01:00 to 05:00
Jct 12 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
A12 roadworks running now
Severe
Southbound Starting soon
The A12 southbound between junctions J12 and J11
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 5 November 2026
Severe
Northbound Starting soon
The A12 northbound between junctions J29 and J30
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J30 and J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J15 and J13
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Northbound Starting soon
The A12 northbound between junctions J16 and J17
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J24 and J23
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Northbound Starting soon
The A12 northbound at junction J17
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Northbound Starting soon
The A12 northbound between junctions J23 and J24
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
Severe
Southbound Starting soon
The A12 southbound at junction J17
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 9 November 2026
A12 closures in the next 2 weeksOther nights, as far ahead as National Highways have published (to Mon 9 Nov)
Wednesday 4 Nov night · 5 closures
Full closureSouthbound21:00 to 05:00
Jct 25 to 19 carriageway closure
Overall Scheme Details: A12 southbound
Hatfield Peverel to Junction 22 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureNorthbound21:00 to 05:00
Jct 29 entry slip carriageway closure
Overall Scheme Details: A12 both directions
Jct 29 - carriageway closure for drainage works on behalf of National Highways
Slip road closureSouthbound21:00 to 23:00
Jct 16 exit slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Slip road closureSouthbound23:00 to 02:00
Jct 16 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Slip road closureSouthbound02:00 to 05:00
Jct 15 exit slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Thursday 5 Nov night · 6 closures
Full closureSouthbound21:00 to 05:00
Jct 21 to 19 carriageway closure
Overall Scheme Details: A12 southbound
Hatfield Peverel to Junction 22 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureNorthbound21:00 to 05:00
Jct 29 entry slip carriageway closure
Overall Scheme Details: A12 both directions
Jct 29 - carriageway closure for drainage works on behalf of National Highways
Slip road closureSouthbound21:00 to 23:00
Jct 14 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Lane closureSouthbound21:00 to 05:00
Jct 25 carriageway cloure
Overall Scheme Details: A12 southbound
Hatfield Peverel to Junction 22 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureSouthbound23:00 to 02:00
Jct 13 exit slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
Slip road closureSouthbound02:00 to 05:00
Jct 13 entry slip road closure
Overall Scheme Details: A12 both directions
Copdock Roundabout to Jct 11 - Mobile lane closures, slip road closures and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
❓ A12 roadworks — Frequently Asked Questions
Are there roadworks on the A12 right now?
No roadworks are currently running on the A12 according to National Highways.
Is the A12 closed tonight?
No full closures. The A12 stays open tonight (Tue 3 Nov, 18:00 to 06:00). 4 lane or slip road closures are planned: northbound Jct 29 entry slip carriageway closure, 21:00 to 05:00; and southbound Jct 18 exit slip road closure, 21:00 to 23:00 and 2 more.
Is the A12 closed this weekend?
Yes. The A12 has 1 full closure planned this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00): southbound Jct 21 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 3 lane or slip road closures.
When are A12 roadworks usually carried out?
Most National Highways lane closures on the A12 run overnight and are lifted before the morning peak (07:00–09:00). Full carriageway closures are usually weekend nights, with a signed diversion.
🛣️ Data from National Highways ·
All UK roadworks ·
Overnight closures ·
A12 live traffic
Roadworks change at short notice. Always follow signs and signals on the road.
UK Traffic Updates