Latest M4 traffic news, updates & roadworks

M4 Traffic

Latest M4 Traffic News

We’re improving the M4 Traffic website for our many users — 1. secure SSL browsing, 2. a new mobile-friendly design, and 3. clearer, easier-to-read traffic news features — with more improvements coming soon!

M4 motorway sign Search M4Traffic.co.uk

Welcome to the M4 traffic search news page.

Helping you find the latest M4 traffic news and updates.

We hope that the traffic news will help you avoid taffic jams and roadwords.

Our traffic news is designed to provide you with taffic news in a clear and informative way.

You can use the filter options below to find the latest traffic news for the M4 jourey you are planning to take.

Latest M4 Traffic News Updates

12 matching items - showing 1-10 of 12 total available news items

  • M4 eastbound lane 1 and 2 closure (34/0 to 31/4)

    Active nowRoadworksEastbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound within J5
    Direction
    Eastbound
    Lanes closed
    Lane closures
    Reason
    Roadworks
    Schedule
    19:57 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)

    Active nowRoadworksEastbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J18 and J17
    Direction
    Eastbound
    Lanes closed
    Restriction
    Reason
    Maintenance work
    Schedule
    19:46 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M4 eastbound lane 1 and 2 closure (47/0 to 44/6) and lane closure on Jct 8/9 exit/entry slip

    Active nowRoadworksEastbound Slip road closed
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J8 and J7
    Direction
    Eastbound
    Lanes closed
    Slip road closed
    Reason
    Maintenance work
    Schedule
    19:28 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • Hardshoulder closure

    Active nowRoadworksEastbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J17 and J16
    Direction
    Eastbound
    Lanes closed
    Hard shoulder closed
    Reason
    Roadworks
    Schedule
    23:59 Tue 27 Apr 2021 → 18:00 Fri 30 Jul 2027
    ⏳Long-term works - HA planned end: 18:00 Fri 30 Jul 2027.

  • M4 eastbound Jct 21 to Jct 20 lane closure 184/8-186/4

    Active nowRoadworksNorthbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    link road from M4 J20 eastbound to M5 J15 northbound
    Direction
    Northbound
    Lanes closed
    Lane closures
    Reason
    Maintenance work
    Schedule
    20:52 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M4 westbound Jct 20 exit slip road to M5 southbound closed

    Active nowRoadworksSouthbound Road closed
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    link road from M4 westbound J20 to M5 J15
    Direction
    Southbound
    Lanes closed
    Carriageway closed
    Reason
    Maintenance work
    Schedule
    20:52 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M4 eastbound Jct 5 entry slip road lane closures

    Active nowRoadworksEastbound Slip road closed
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 J5 eastbound access
    Direction
    Eastbound
    Lanes closed
    Slip road closed
    Reason
    Roadworks
    Schedule
    19:57 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M4 eastbound lane 1 and lane 2 closure (107/1 to 106/2)

    Active nowRoadworksEastbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J15 and J14
    Direction
    Eastbound
    Lanes closed
    Lane closures
    Reason
    Maintenance work
    Schedule
    20:03 Fri 14 Aug → 06:00 Sat 15 Aug
    ⏳Expected to clear in ~8h 29m HA planned end: 06:00 Sat 15 Aug

  • M25 Clockwise Jct 15 to Jct 16 and M4 Eastbound and westbound link road closure to M25 Anti-clockwise

    PlannedRoadworksAnticlockwise Road closed
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    link road from M4 J4B eastbound to M25 J15 clockwise
    Direction
    Anticlockwise
    Lanes closed
    Carriageway closed
    Reason
    Roadworks
    Schedule
    23:00 Fri 14 Aug → 06:00 Sat 15 Aug

    Forecast - not confirmed

    🚧HA scheduled: 23:00 Fri 14 Aug → 06:00 Sat 15 Aug starts in about 1 hours · lasts ~7h 00m

  • M4 Eastbound Jct 5 to Jct 4B Lane 1 closure

    PlannedRoadworksEastbound
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J5 and J4B
    Direction
    Eastbound
    Lanes closed
    Lane closures
    Reason
    Roadworks
    Schedule
    23:00 Fri 14 Aug → 06:00 Sat 15 Aug

    Forecast - not confirmed

    🚧HA scheduled: 23:00 Fri 14 Aug → 06:00 Sat 15 Aug starts in about 1 hours · lasts ~7h 00m

  • M4 both directions Jct 15 to 22 - mobile lane closure

    PlannedRoadworksBoth directions
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    M4 eastbound between J18 and J17
    Direction
    Both directions
    Lanes closed
    Lane closures
    Reason
    Maintenance work
    Schedule
    20:00 Fri 14 Aug → 06:00 Sat 15 Aug

    Forecast - not confirmed

    🚧HA scheduled: 20:00 Fri 14 Aug → 06:00 Sat 15 Aug underway until 06:00 Sat 15 Aug

  • M4 Jct 8/9 Roundabout partial closure

    PlannedRoadworks Road closed
    Time now: Friday, 14 August 2026, 21:30

    21:2214 Aug 2026reported 8 min ago

    Location
    roundabout at M4 J8/A404(M) J9/A308(M)
    Direction
    Not available
    Lanes closed
    Carriageway closed
    Reason
    Maintenance work
    Schedule
    21:00 Fri 14 Aug → 06:00 Sat 15 Aug

    Forecast - not confirmed

    🚧HA scheduled: 21:00 Fri 14 Aug → 06:00 Sat 15 Aug underway until 06:00 Sat 15 Aug

    • Updated 21:30 Fri 14 Aug

    Powered by National Highways’ Transport Data Feeds.

    Latest M4 Traffic News Updates

    How to find the latest M4 traffic news

    Our live M4 feed updates throughout the day with the latest reports on delays, roadworks, accidents, closures and congestion along the M4 motorway. Search by junction number and direction — eastbound or westbound — to focus on the stretch you’re travelling, whether that’s the M25 interchange at Junction 4b, the Severn crossing, the M5 at Almondsbury, or the run into Cardiff and Swansea. A quick check before you leave can save you sitting in avoidable traffic.