Is the A12 closed? Quick answers
Checked 02:42 on Saturday 7 November 2026.
Is the A12 closed tonight?
Yes. The A12 has 1 full closure planned tonight (Fri 6 Nov, 18:00 to 06:00): southbound Jct 25 to 19 carriageway closure, 21:00 to 05:00. Plus 2 lane or slip road closures.
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 25 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 2 lane or slip road closures.
This weekend's A12 closures ›Are there roadworks on the A12 right now?
Yes. 6 sets of works are running on the A12 at 02:42, 2 with severe delays.
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 tonightFri 6 Nov, 18:00 to 06:00
Yes. The A12 has 1 full closure planned tonight (Fri 6 Nov, 18:00 to 06:00): southbound Jct 25 to 19 carriageway closure, 21:00 to 05:00. Plus 2 lane or slip road 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 closureNorthbound01:00 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 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 25 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 2 lane or slip road closures.
Full closureSouthboundFri 6 Nov, 21:00 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 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
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
Northbound
The A12 northbound between junctions J29 and J30
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Severe
Southbound 🛑 now
A12 southbound 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
✅ until 05:00
Moderate
Northbound
The A12 northbound entry slip at junction J12
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Northbound 🛑 now
A12 northbound Jct 29 entry slip carriageway closure
Overall Scheme Details: A12 both directions
Jct 29 - carriageway closure for drainage works on behalf of National Highways
✅ until 05:00
Moderate
Northbound 🛑 now
A12 northbound 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
✅ until 05:00
Minor
[A12] BLACKWALL TUNNEL NORTHERN APPROACH (E15 ,E3 ) (Tower Hamlets)
🔨 Roadworks
✅ Expected to clear by 2026-11-07 05:00:00
Severe
Northbound Starting soon
The A12 northbound entry slip at junction J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 10 November 2026
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 7 November 2026
Severe
Southbound Starting soon
The A12 southbound exit slip at junction J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 17 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 17 November 2026
Severe
Northbound Starting soon
The A12 northbound at junction J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 11 November 2026
Severe
Southbound Starting soon
The A12 southbound entry slip at junction J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 12 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J20B and J19
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J32A and J31
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 8 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J31 and J29
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 8 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J26 and J25
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Severe
Southbound Starting soon
The A12 southbound exit slip at junction J19
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J24 and J24
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Severe
Southbound Starting soon
The A12 southbound between junctions J22 and J21
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Southbound Starting soon
The A12 southbound exit slip at junction J11
🔨 Roadworks
🚦 1 of 4 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Southbound Starting soon
The A12 southbound entry slip at junction J23
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Northbound Starting soon
The A12 northbound exit slip at junction J24
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Starting soon
From 21:00 on 06 November 2026 to 05:00 on 07 November 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Southbound Starting soon
The A12 southbound between junctions J25 and J21
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Northbound Starting soon
The A12 northbound entry slip at junction J23
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Southbound Starting soon
The A12 southbound exit slip at junction J22
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
Moderate
Southbound Starting soon
The A12 southbound between junctions J21 and J20B
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear around 05:00 on 7 November 2026
A12 closures in the next 2 weeksOther nights, as far ahead as National Highways have published (to Fri 13 Nov)
Monday 9 Nov night · 4 closures
Slip road closureNorthbound21:00 to 23:00
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
Slip road closureSouthbound21:00 to 05:00
Jct 17 exit slip road closure
Overall Scheme Details: A12 southbound
Jct 17 - carriageway closure for horticulture (cutting and planting) on behalf of National Highways
Slip road closureNorthbound23:00 to 02:00
Jct 14 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 closureNorthbound02:00 to 05:00
Jct 15 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
Tuesday 10 Nov night · 7 closures
Full closureSouthbound20:00 to 06:00
Jct 29 to Jct 28 carriageway closure
Overall Scheme Details: A12 both directions
Jct 27 to Jct 29 - carriageway closure for structure - maintenance on behalf of National Highways
Slip road closureNorthbound21:00 to 23:00
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 closureSouthbound21:00 to 05:00
Jct 17 exit slip road closure
Overall Scheme Details: A12 southbound
Jct 17 - carriageway closure for horticulture (cutting and planting) on behalf of National Highways
Slip road closureNorthbound23:00 to 01:00
Jct 17 entry slip 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 closureNorthboundFrom Wed 11 Nov 00:01, until Thu 12 Nov 02:00
Jct 20A exit slip carriageway 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 closureNorthbound01:00 to 03:00
Jct 18 entry slip carriageway 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 closureNorthbound03:00 to 05:00
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
Wednesday 11 Nov night · 4 closures
Full closureNorthbound21:00 to 05:00
A12 Jct 27 and 28 carriageway closure
Overall Scheme Details: A12 northbound
Jct 27 to Jct 28 - carriageway closure for carriageway - reconstruction renewal on behalf of National Highways
Slip road closureNorthbound21:00 to 23:59
Jct 19 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 closureSouthbound21:00 to 05:00
Jct 17 exit slip road closure
Overall Scheme Details: A12 southbound
Jct 17 - carriageway closure for horticulture (cutting and planting) on behalf of National Highways
Slip road closureNorthbound02:00 to 05:00
Jct 21 entry slip carriageway 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 12 Nov night · 4 closures
Slip road closureNorthbound21:00 to 23:00
Jct 22 entry slip carriageway 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 closureNorthbound21:00 to 05:00
Capel St Mary entry slip road closure
Overall Scheme Details: A12 northbound
Capel St Mary - carriageway closure for horticulture (cutting and planting) on behalf of National Highways
Slip road closureNorthbound23:00 to 02:00
Jct 22 exit slip carriageway 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 closureNorthbound02:00 to 05:00
Jct 23 exit slip carriageway 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?
Yes — National Highways is reporting 6 sets of roadworks running on the A12, 2 of them causing severe delays.
Is the A12 closed tonight?
Yes. The A12 has 1 full closure planned tonight (Fri 6 Nov, 18:00 to 06:00): southbound Jct 25 to 19 carriageway closure, 21:00 to 05:00. Plus 2 lane or slip road 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 25 to 19 carriageway closure, Fri 21:00 to 05:00. Plus 2 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