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Live from National Highways

A4 roadworks and closures

Closures tonight, this weekend and the next two weeks, plus the works running now on the A4, straight from National Highways.

1Running now
1Full closures tonight 0Full closures this weekend
Home › Traffic › Roads › A4 › Roadworks & closures

Is the A4 closed? Quick answers

Checked 13:57 on Tuesday 3 November 2026.

Is the A4 closed tonight?

Yes. The A4 has 1 full closure planned tonight (Tue 3 Nov, 18:00 to 06:00): westbound Box roundabout to London Road roundabout - carriageway closure, 21:00 to 06:00. Diversion: Diversion for light vehicles via London Road E, High Street, London Road W, A46. Diversion for HGV's via A4 eastbound, A350 northbound, A420, A46.

Tonight's A4 closures ›

Is the A4 closed this weekend?

No. No closures are planned on the A4 this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00).

This weekend's A4 closures ›

Are there roadworks on the A4 right now?

Yes. 1 set of works is running on the A4 at 13:57.

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.

A4 closures tonightTue 3 Nov, 18:00 to 06:00

Yes. The A4 has 1 full closure planned tonight (Tue 3 Nov, 18:00 to 06:00): westbound Box roundabout to London Road roundabout - carriageway closure, 21:00 to 06:00. Diversion: Diversion for light vehicles via London Road E, High Street, London Road W, A46. Diversion for HGV's via A4 eastbound, A350 northbound, A420, A46.

  • Full closureWestbound21:00 to 06:00
    Box roundabout to London Road roundabout - carriageway closure
    Overall Scheme Details: A4 westbound Box roundabout to London Road roundabout - carriageway closure for horticulture works.
    Diversion: Diversion for light vehicles via London Road E, High Street, London Road W, A46. Diversion for HGV's via A4 eastbound, A350 northbound, A420, A46.

A4 closures this weekendFri 6 Nov 18:00 to Mon 9 Nov 06:00

No. No closures are planned on the A4 this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00).

A4 roadworks running now

Minor
[A4] COCKSPUR STREET (SW1A ,SW1Y ,WC2N ) (Westminster)
🔨 Roadworks
✅ Expected to clear by 2026-11-30 17:00:00

A4 closures in the next 2 weeksOther nights, as far ahead as National Highways have published (to Mon 9 Nov)

No other A4 closures are published yet.

❓ A4 roadworks — Frequently Asked Questions

Are there roadworks on the A4 right now?

Yes — National Highways is reporting 1 set of roadworks running on the A4.

Is the A4 closed tonight?

Yes. The A4 has 1 full closure planned tonight (Tue 3 Nov, 18:00 to 06:00): westbound Box roundabout to London Road roundabout - carriageway closure, 21:00 to 06:00. Diversion: Diversion for light vehicles via London Road E, High Street, London Road W, A46. Diversion for HGV's via A4 eastbound, A350 northbound, A420, A46.

Is the A4 closed this weekend?

No. No closures are planned on the A4 this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00).

When are A4 roadworks usually carried out?

Most National Highways lane closures on the A4 run overnight and are lifted before the morning peak (07:00–09:30). Full carriageway closures are usually weekend nights, with a signed diversion.

🛣️ Data from National Highways · All UK roadworks · Overnight closures · A4 live traffic
Roadworks change at short notice. Always follow signs and signals on the road.

🚗 A4 pages

A4 live traffic →

A4 Great West Road. Live incidents, junction status and collision history.

🚧 Roadworks elsewhere

🇬🇧 All UK roadworks → 🌙 Motorway closures tonight & this weekend → 🚧 M4 roadworks → 🚧 M25 roadworks → 🚧 A406 roadworks →

🚛 Car recovery along the A4

Broken down on the A4? Pick the nearest town and call a local firm direct:

On a motorway? If you can, get onto the hard shoulder or into an emergency area, leave by the left-hand doors and wait behind the barrier. Stuck in a live lane: stay in the car with your seatbelt on and hazard lights on, and call 999.

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