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M48
🔵 Motorway

Severn Bridge Traffic (M48)

M48 Motorway · Aust (M4 J21) → Rogiet (M4 J23)
Clear ⏱ Updated 23:27

M48 traffic at 23:27 on Sunday 18 October: no major incidents reported — live National Highways updates every 5 minutes, 24/7.

🚨 0 incidents 🚧 0 roadworks · 2 soon
11 miles long
Junctions J1–J2
Regions: South West, Wales
Home › Traffic › Roads › M48

🚨 Live M48 Incidents & Roadworks

Updates every 5 min
🌉 Severn Bridge at 23:27
WestboundEngland → Wales✅ No incidents reported
EastboundWales → England✅ No incidents reported
No tolls on the Severn crossings since 17 December 2018.
Share M48 status: 💬 📘 X
No live incidents on the M48 right now — checking National Highways every 5 minutes, 24/7. Closures are listed below.

🌙 M48 closures tonight and the next 3 days 2

From National Highways' closure report, in their words. Times can change - check before you set off.

  • Full closure
    Eastbound M48 eastbound Jct 2 to 1 Severn Bridge carriageway closure
    Tue 20 Oct · 20:00–06:00
    Diversion: Diversion via M4 Prince of Wales Bridge.
  • Full closure
    Westbound M48 westbound Jct 1 between exit and entry slip roads carriageway closure
    Tue 20 Oct · 20:00–06:00
    Diversion: Diversion via exit and entry slip roads. 7.5T weight limit suspended
All M48 roadworks & diversions →
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💥 Crash⚠️ Hazard⛔ Closure🐌 Queue
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🗺️ M48 Traffic Map — Where It's Happening

Tap a pin for full incident detail. Live positions from National Highways.

🔢 M48 Junction Status

Tap a junction for its page

🟢 Clear · 🟡 Delays nearby · 🔴 Severe/Crash · Status labels: 💥 CRASH · ❌ CLOSED · 🐌 SLOW · 🚧 WORKS · ⚠️ HAZARD

A red or orange junction border marks a STATS19 collision blackspot. Tap any junction for its own page — live incidents and full collision history. Tap the funnel to filter the list above.

📊 How busy is the M48?

The M48 carries up to 29,540 vehicles a day at its busiest stretch, including 2,191 HGVs — the 26th busiest motorway in Britain. Official Department for Transport counts, 2025.

29,540
🚗 vehicles a day
2,191
🚛 lorries a day
2025
📅 DfT count year
7.4% HGVs
share of traffic on the busiest stretch
Busiest stretch of each motorway — vehicles a day
M25 212,636
M6 187,521
M56 179,634
M1 162,446
M8 158,065
M4 156,491
M48 29,540
View as table
RoadBusiest stretchVehicles/dayHGVs/dayHGV share
M25 near J14 212,636 14,853 7%
M6 J20–J21 187,521 23,492 12.5%
M56 J3–J4 179,634 7,547 4.2%
M1 near J9 162,446 19,151 11.8%
M8 J16–J17 158,065 7,214 4.6%
M4 near J4 156,491 6,249 4%
M48 ◀ — 29,540 2,191 7.4%
Source: Department for Transport road traffic statistics, average annual daily flows 2025. Official counts, updated yearly.

⚠️ Most Dangerous M48 Junctions

Based on DfT STATS19 police collision records. The M48 has 21 recorded collisions at 2 collision hotspots, involving 21 casualties. Take extra care here. Ranked by fatal, then serious collisions, then casualties - not by the number of collisions alone.

#1
J2
11 collisions · 11 casualties · 3 serious
Severe Blackspot
#2
J1
10 collisions · 10 casualties
Severe Blackspot
🔍 See the full M48 collision blackspot map →

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❓ M48 Traffic — Frequently Asked Questions

Is the M48 closed today?

Any M48 closure appears in the live feed above within minutes of National Highways reporting it, including tonight's overnight roadworks closures.

Is there traffic on the M48 today?

The live feed above shows every incident, delay, roadwork and overnight closure on the M48, updated every 5 minutes, 24 hours a day, from National Highways.

What is the worst time to use the M48?

The M48 is typically busiest during morning rush hour (07:00–09:00) and evening rush hour (16:30–19:00) on weekdays.

Are there roadworks on the M48 right now?

Roadworks and overnight closures on the M48 are listed above and at /traffic/m48/roadworks/, taken from the National Highways daily closure report.

What roads connect to the M48?

The M48 connects to: M4.

Is there an accident on the M48 eastbound or westbound today?

Each side has its own live page: the M48 eastbound and the M48 westbound each list every accident, breakdown, closure and roadworks on that carriageway, updated every 5 minutes, 24 hours a day, from National Highways. The panel at the top of this page shows both sides at a glance.

How many vehicles use the M48 every day?

Official Department for Transport counts (2025) record 29,540 vehicles a day on the M48's busiest stretch, 2,191 of them HGVs. The full breakdown and comparison chart are in the traffic statistics section above.

How busy is the M48 compared with other motorways?

The M48 has the 26th busiest motorway stretch in Britain at 29,540 vehicles a day (DfT 2025), behind the M25's 212,636 a day at the top.

📊 M48 Status Summary

0
Active incidents
0
Severe/serious
0
Roadworks
23:27
Last updated
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ℹ️ M48 Road Details

Length
11 miles
Junctions
J1–J2
From
Aust (M4 J21)
To
Rogiet (M4 J23)
Type
Motorway
AM Rush
07:00–09:00
PM Rush
16:30–19:00

📍 Key M48 Locations

Chepstow Aust

🔗 Roads Connecting to the M48

Junction

DfT STATS19 police collision records

0
Collisions
0
Fatal
0
Serious
0
Slight
🔍 Full blackspot map →
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🚛 Car recovery along the M48

Broken down on the M48? Send one free request and local firms are told.

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.