Severe
Southbound Starting soon
The A34 southbound entry slip from the A423
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 29 September 2026
Severe
Southbound Starting soon
The A34 southbound between junctions with the A4183 and A415
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 30 September 2026
Severe
Starting soon
Lanes one and two will be closed
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Severe
Northbound Starting soon 🌙 tonight
A34 northbound Marcham to Abingdon carriageway closure
Overall Scheme Details: A34 northbound Marcham to Abingdon.
Carriageway closure for barrier work.
✅ until 07:00 Wed 23 Sep
Severe
Southbound Starting soon 🌙 tonight
A34 southbound Hinksey Hill to Marcham carriageway closure
Overall Scheme Details: A34 southbound Hinksey Hill to Marcham.
Carriageway closure for surveys.
✅ until 07:00 Wed 23 Sep
Severe
Southbound Starting soon 🌙 Thu 24 Sep
A34 southbound Bullington to M3 Jct 9 carriageway closure
Overall Scheme Details: A34 southbound Bullington to M3 Jct 9,
Carriageway closure for horticulture works.
✅ until 07:00 Fri 25 Sep
Moderate
Southbound Starting soon 🌙 tomorrow night
A34 southbound Whitchurch entry slip road closure
Overall Scheme Details: A34 southbound Whitchurch.
Slip road and lane closures for maintenance work.
✅ until 07:00 Thu 24 Sep
Moderate
Southbound Starting soon 🌙 Thu 24 Sep
A34 southbound Weston on the Green entry slip road closure
Overall Scheme Details: A34 southbound Weston on the Green - slip road and lane closure for maintenance work.
✅ until 07:00 Fri 25 Sep
Moderate
Southbound Starting soon 🌙 Thu 24 Sep
A34 southbound Weston on the Green exit slip road closure
Overall Scheme Details: A34 southbound Weston on the Green - slip road and lane closure for maintenance work.
✅ until 07:00 Fri 25 Sep
❓ A34 roadworks — Frequently Asked Questions
Are there roadworks on the A34 right now?
No roadworks are currently running on the A34 according to National Highways.
Is the A34 closed tonight?
9 closures are scheduled on the A34 in the next 72 hours. Each one is listed above with its window and diversion.
When are A34 roadworks usually carried out?
Most National Highways lane closures on the A34 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 ·
A34 live traffic
Roadworks change at short notice. Always follow signs and signals on the road.