M4 Traffic Latest Update Today: Motorists travelling between Maidenhead and Reading are facing major disruption after a serious crash forced authorities to shut a section of the M4 in both directions. The closure is affecting the stretch between J8/9 and J10, with traffic unable to pass through the area while emergency services deal with the incident.Â
Police are investigating the collision, while National Highways traffic officers are managing the closure and directing drivers towards signed diversion routes. The disruption is expected to affect the morning commute, with delays likely on nearby roads as motorists seek alternative routes. Drivers are being advised to check traffic conditions before setting off, allow extra time and avoid the closed section wherever possible.Â
M4 Traffic Latest Update Today
The M4 remains closed between Junction 8/9 for Maidenhead and Junction 10 for Reading following the overnight crash. The closure affects traffic travelling in both directions and comes during the morning rush hour, increasing the risk of congestion on nearby routes.
National Highways traffic officers are assisting with the closure while Thames Valley Police continues its investigation.
M4 Traffic Latest Update Today: What Happened?
Emergency services responded to a serious collision on the M4 late Wednesday evening. The crash happened at around 9:30 pm, after which authorities closed the affected section of the motorway to allow emergency services to work at the scene.
One motorist caught in the disruption described the scene, saying:
‘It looks like a terrible accident. Many fire engines, ambulances and police present. Been stuck on the M4 for over 2 hours. However, my discomfort is irrelevant. Let’s hope no one was seriously hurt.’
Authorities have not yet provided detailed information about how the collision happened.
M4 Traffic Latest Update Today: How Did the Crash Happen?
The exact circumstances behind the crash remain unclear as police continue their investigation. Thames Valley Police has confirmed that emergency services attended the scene and warned that the London-bound carriageway could remain closed for several hours.
The investigation has also prevented authorities from reopening the motorway immediately, with police needing to complete their work at the scene before traffic can return.
M4 Traffic Latest Update Today: Casualties & Injuries
Emergency services, including police, fire crews and ambulances, attended the collision. However, the latest updates do not provide confirmed details about the number of casualties or the severity of any injuries.
The investigation remains ongoing, and authorities are expected to provide further information when it becomes available.
M4 Traffic Latest Update Today: Affected Roads
The main closure affects the M4 between:
- J8/9, Maidenhead
- J10, Reading
Both carriageways are affected by the closure, although police indicated that the eastbound Reading-to-London side could reopen during the morning. The disruption could also affect surrounding roads as motorists divert away from the motorway.
M4 Traffic Latest Update Today: Diversion Routes
- National Highways has introduced diversion routes for vehicles affected by the closure.
- Westbound traffic: Drivers should follow the hollow square diversion symbol, leave the M4 at J8/9 and continue via the A404M.
- Eastbound traffic: Drivers should follow the hollow circle diversion symbol, leave the M4 at J10 and join the A329M northbound.
Motorists should follow the official diversion signs and avoid the closed section.
M4 Traffic Latest Update Today: Police Investigation Underway
Thames Valley Police is investigating the collision and has warned drivers to use alternative routes. The force said, ‘Emergency services are in attendance and we will provide further updates when we can.
‘Please seek alternative routes for this morning.’ Police also said the London-to-Reading carriageway was likely to remain closed for a number of hours.
M4 Traffic Latest Update Today: Delays & Congestion
The full closure between Maidenhead and Reading is expected to create additional pressure on alternative roads during the morning commute. National Highways said the motorway was expected to remain closed throughout the morning peak period.
Drivers heading towards Reading or London should therefore expect possible delays and allow extra time for their journeys.
M4 Traffic Latest Update Today: When Will Traffic Reopen?
There is no confirmed reopening time for the M4 between J8/9 and J10 yet. National Highways expects the closure to remain in place throughout the morning peak as police continue their collision investigation.
Thames Valley Police has indicated that the London-bound carriageway could remain closed for a number of hours. The eastbound Reading-to-London side was expected to reopen at some point during the morning, but authorities have not given a specific time.
M4 Traffic Latest Update Today: What Should Travellers Know?
Drivers should avoid the closed section of the M4 between J8/9 and J10 until authorities reopen the road. Those travelling through Berkshire should:
- Check traffic conditions before starting their journey.
- Allow extra time for travel.
- Follow the signed diversion routes.
- Avoid the closed section.
- Expect heavier traffic on alternative roads.
- Follow instructions from police and National Highways officers.
The latest information indicates that the closure follows the serious collision and police investigation rather than planned roadworks.
