M4 Junction 20: Almondsbury (M5) – Collision Now

Map of M4 Junction 20: Almondsbury — M4 Junction 20: Almondsbury. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Junction 20 at Almondsbury is where the M4 meets the M5, between the Midlands and the South West. It is motorway-to-motorway only, and one of the busiest junctions in the region. Almondsbury, Hortham and Bradley Stoke are beside it. Aerospace Bristol is about two and a half miles south-west.

This is where the M4 and the M5 meet, so holidaymakers bound for Devon and Cornwall, hauliers and commuters all pass through it. Check this page and both motorways' news before you set off.

For the M5 north to Birmingham or south to Devon, see our sister site M5 Traffic ↗ (opens in a new tab).

Check this junction now: live M4 speed flow map · latest M4 traffic news · M4 serious incidents · M4 accidents

M4 Junction 20 Now: Accidents, Incidents and Roadworks

M4 serious incident · Collision

The information we are receiving suggests there has been a collision on the M4 eastbound between junctions J20 and J19. It appears to have started at 18:03 (6:03pm). National Highways expects it to clear by 23:19 (11:19pm).

For more information, read here ›

Live traffic news at M4 Junction 20

Incidents and roadworks between Junction 19 and Junction 21 that we are aware of.

M4 eastbound between junctions J20 and J19: collision (RTC)

Active nowIncidentEastbound

Time now: Wednesday, 21 October 2026, 21:29 (9:29pm)

21:26 (9:26pm)21 Oct 2026reported 3 min ago

Location: M4 eastbound between junctions J20 and J19
Direction: Eastbound
Lanes closed: The hard shoulder is closed
Reason: Collision (RTC)
Schedule: 18:03 (6:03pm) Wed 21 Oct 2026 → 23:19 (11:19pm) Wed 21 Oct 2026

⏳Expected to clear in ~1h 50m HA planned end: 23:19 (11:19pm) Wed 21 Oct 2026

This is the news for Junction 20 only, not the whole M4. For the rest of the motorway see all the latest M4 traffic news, the overhead signs and the speed limits in force now.

Updated 21:29 (9:29pm) Wed 21 Oct 2026

Live Traffic Speeds at M4 Junction 20

The speed strip below shows the M4 around this junction, both directions, from National Highways’ live data, checked every five minutes.

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60 mph +50–5930–4915–29under 15

closedM62connecting motorwayA6A road👈M1our site: tap for its map

services, on the side you can reach them

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reported by drivers, which can’t always be relied onconfirmed by National Highways

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Go to our live M4 traffic speed flow map ›

In an emergency call 999. To report a problem on a motorway, call National Highways on 0300 123 5000 (24 hours).

NOTE: The speed flow, overhead sign messages or other information shown on our live traffic speed flow map is updated every few minutes. We cross check the data and aim to provide warnings if there could be a delay or an inaccurate speed reading. There can be occasions, beyond our control, and despite our best efforts where the speed flow could be inaccurate. We cannot therefore guarantee the speed you can expect on any stretch of the motorway is always accurately shown. However we hope you will find our live traffic speed flow map a useful tool in trying to plan your journey. Safe driving.

All the latest M4 traffic news →Live M4 traffic speed flow map →

M4 J20 in Our Records

Incidents here, last 13 days32 collisions, 1 breakdown or obstruction

Typical time to clear71 minutesthe middle value of 3 cleared

Slowest daytime hour westbound16:00–17:00average 47 mph (typical 40 mph)

Slowest daytime hour eastbound08:00–09:00average 38 mph (typical 45 mph)

More than half of the incidents we recorded at J20 were collisions (2 of 3). Westbound, traffic has been running faster than its typical speed, even in its slowest daytime hour (16:00). Eastbound, the slowest daytime hour is 08:00, about 7 mph below the typical speed.

Average speed by hour of day at J20

our average, last 13 daysNational Highways’ typical speed

Westbound

Eastbound

Incidents per week at J20

collisionsbreakdowns and obstructions* part week: we started recording during it

The latest 3 here

Wed 21 Oct, 18:03 (6:03pm) Collision ✓Reported by National Highways
M4 eastbound between junctions J20 and J19
✓ Cleared after about 71 minutes (1.18 hours)
Wed 21 Oct, 10:12 (10:12am) Collision ✓Reported by National Highways
M4 westbound between junctions J19 and J20
✓ Cleared after about 34 minutes
Tue 13 Oct, 07:26 (7:26am) Broken Down Vehicle ✓Reported by National Highways
M4 eastbound between junctions J20 and J19
✓ Cleared after about 121 minutes (2.02 hours)

Built from our own records of National Highways’ live data for the M4 either side of J20: speeds from 13 days of five-minute readings, incidents from the last 13 days (we started recording incidents on 09/10/2026). Each incident is counted once. Updated every five minutes.

Junction M4 J20, Almondsbury
Roads at this junction M5
Nearest town Bradley Stoke, 1.1 miles south
Junction before J19, Hambrook, about 2.9 miles in a straight line
Junction after J21, Awkley Interchange, about 1.5 miles in a straight line

Around M4 Junction 20: Almondsbury: Towns and Places on the Map

Map of the area within about 5 miles of M4 Junction 20: Almondsbury, showing the towns, villages, roads and places to visit — The area within about 5 miles of M4 Junction 20. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Places on the Map Near M4 Junction 20
Place	What it is	From the junction
Aerospace Bristol	Attraction	About 2.5 miles south-west
Jekka's Herb Farm	Attraction	About 3 miles north-east
Bristol Zoo Project	Attraction	About 3 miles south-west
Pilning	Railway station	About 3 miles west
Acton Court	Attraction	About 3.5 miles east
Blaise Hamlet	Attraction	About 4.5 miles south-west