Live from National Highways

A4 Roadworks

Lane closures, overnight works and planned schemes on the A4, straight from the National Highways feed.

2Running now

0Severe delay

1Starting soon

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Minor

[A4] REGENT STREET ST JAMES'S (SW1Y ,W1J ) (Westminster)

🔨 Roadworks

✅ Expected to clear by 2026-10-12 06:00:00

Minor

[A4] WATERLOO PLACE (SW1Y ) (Westminster)

🔨 Roadworks

✅ Expected to clear by 2026-10-13 17:00:00

Severe Westbound Starting soon 🌙 Wed 14 Oct

A4 westbound St Brendan's Roundabout to St Andrews Roundabout carriageway closure

Overall Scheme Details: A4 westbound St Brendan's Roundabout to St Andrews Roundabout carriageway closure for electrical works.

Diversion: Diversion via Avonmouth Way, Third Way, A403

✅ until 06:00 Thu 15 Oct

❓ A4 roadworks — Frequently Asked Questions

Are there roadworks on the A4 right now?

Yes — National Highways is reporting 2 sets of roadworks running on the A4.

Is the A4 closed tonight?

1 closure is scheduled on the A4 in the next 72 hours. Each one is listed above with its window and diversion.

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 → 🌙 Tonight's overnight closures → 🚧 M4 roadworks → 🚧 M25 roadworks → 🚧 A406 roadworks →

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