M4 Junction 16 Traffic

🚨 Live at M4 J16 right now

Checked 14:17 · auto-refresh

✅Nothing reported at M4 J16 right now.

Planned closures at M4 J16

🛑 Closed now until 06:00 Sat 5 Dec

M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed

⇅ Both directionsPart closure

Diversion: Diversion via M5 southbound, exit Jct 16 to turn and return M5 northbound.

🌙 Planned from 21:00 tomorrow until 06:00 Thu 5 Nov

M4 westbound Jct 15 to Jct 16 carriageway closure

← WestboundCarriageway closed

Diversion: Diversion via A419, A4259, A3102.

Straight from National Highways, re-checked every 3 minutes while this page is open.

All live M4 traffic →M4 eastbound →M4 westbound →M4 roadworks →

Is M4 junction 16 closed? Quick answers

Checked 14:17 on Tuesday 3 November 2026.

Is M4 junction 16 closed right now?

No. Nothing is closing the road at M4 junction 16 at 14:17.

Is M4 junction 16 closed tonight?

No full closures. M4 junction 16 stays open tonight (Tue 3 Nov, 18:00 to 06:00). 2 lane or slip road closures are planned: westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed, since Sun 11 Oct 22:00, until Sat 5 Dec 06:00; and westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed, since Sun 11 Oct 22:00, until Sat 5 Dec 06:00.

Tonight: every M4 closure ›

Is M4 junction 16 closed this weekend?

No full closures. M4 junction 16 stays open this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00). 2 lane or slip road closures are planned: westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed, since Sun 11 Oct 22:00, until Sat 5 Dec 06:00; and westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed, since Sun 11 Oct 22:00, until Sat 5 Dec 06:00.

This weekend: every M4 closure ›

Is there an accident at M4 junction 16 today?

No. No collision has been reported at M4 junction 16 since midnight.

M4 accidents today and yesterday ›

Answers use official data only: the National Highways live incident feed and their planned closure report. A closure is counted here when National Highways name this junction or a stretch that runs through it.

🗺️ Where M4 J16 is

Location from the National Highways junction reference. Nearest towns: Royal Wootton Bassett, Swindon, Cricklade, Marlborough.

📍 Heading to… from M4 J16

This junction is for

Swindon Designer Outlet Shopping · Swindon, Wiltshire Reached from M4 J16 · 3.5 miles north-east in a straight line 🧭 Directions Wiltshire traffic

Also near this junction

Avebury Heritage · Avebury, Wiltshire 6.5 miles south in a straight line 🧭 Directions Wiltshire traffic

Places and the junctions they are reached from are kept by our team; distances are measured in a straight line from the junction, not along the road.

⚠️ Collision record on the M4 at J16

35Collisions

2Fatal

1Serious

53Casualties

Better than most

Ranked 404 of 556 UK junctions on record · 35 of 49 on the M4

Wider area: counting every road within 3 miles — local streets, A-roads, everything — 764 collisions are on record, 8 of them fatal. That figure follows how built-up the area is, so it is shown for context and is not what the ranking uses.

Department for Transport STATS19 police collision records on the M4 itself, within 2 miles of J16. This is the free summary — the full breakdown by severity, weather, road surface, time of day and individual record is in the blackspot report.

📊 Full collision analysis for M4 J16 → 35 of 49 junctions on the M4 · see where it ranks nationally

❓ M4 J16 — Frequently Asked Questions

Where is M4 junction 16?

M4 J16 is at Swindon & Royal Wootton Bassett. National Highways signs it as Swindon West. The nearest town is Royal Wootton Bassett.

Is there an accident at M4 J16?

No — as of 14:17 National Highways list nothing at M4 J16. This page re-checks their live feed every few minutes, 24 hours a day.

Is M4 junction 16 closed?

Partly — M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed, until 06:00 Sat 5 Dec (as of 14:17).

How many accidents happen at M4 junction 16?

Police STATS19 records show 35 collisions on the M4 within 2 miles of J16, including 2 fatal and 1 serious. Counting every road in the area, 764 collisions are recorded within 3 miles. That ranks it 404 of 556 UK junctions we hold collision records for.

Which places is M4 junction 16 the junction for?

M4 J16 is the junction for Swindon Designer Outlet (shopping, Swindon), about 3.5 miles north-east in a straight line - reached from M4 J16.

What is near M4 junction 16?

Within 15 miles of M4 J16: Avebury (heritage, Avebury), about 6.5 miles south in a straight line.

🚨 Live M4 traffic

Live incidents, roadworks and delays for the whole M4, updated every 5 minutes from National Highways.

🚗 M4 live traffic →

↔️ Next junctions

← J15
Swindon & Marlborough J17
Chippenham & Calne →

📍 Towns near this junction

Royal Wootton Bassett 2.5 mi Swindon 4 mi Cricklade 8.1 mi Marlborough 8.7 mi

🔢 All M4 junctions

J1 J2 J3 J4 J4A J4B J5 J6 J7 J8 J10 J11 J12 J13 J14 J15 J16 J17 J18 J19 J20 J21 J22 J23 J23A J24 J25 J25A J26 J27 J28 J29 J30 J32 J33 J34 J35 J36 J37 J38 J39 J40 J41 J42 J43 J44 J45 J46 J47 J48 J49

🆘 Broken down near M4 J16?

Car recovery near this junction - local firms you can call 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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