**M48 Severn Bridge Closed After Multi-Vehicle Collision, Causing Major Delays for Motorists**

A stretch of the M48 Severn Bridge spanning South Gloucestershire and South Wales is currently closed to westbound traffic following a significant multi-vehicle collision earlier today. Emergency services rushed to the scene shortly after 3pm on Wednesday, with the incident creating severe delays for those hoping to cross into Wales ahead of the evening rush hour.
The closure affects traffic travelling westbound between Junction 1, the A403 (Aust), and Junction 2, the A466 Wye Valley Link Road (Chepstow). Congestion quickly built up in the area, exacerbated by the timing of the crash just before the peak commuter period. Motorists hoping for a swift crossing have been advised to seek alternative routes while the stretch remains cordoned off for investigation and recovery work.

According to updates from Traffic Wales and National Highways, a diversion has been put in place. Drivers are being redirected via the M4 Prince of Wales Bridge, which spans the River Severn just a few miles downstream from the M48. This diversion adds extra distance and time to journeys, prompting authorities to warn road users to expect lengthy delays and to allow for additional travel time.

Emergency services, including police, ambulance, and recovery teams, have been spotted attending the scene. Details surrounding the exact number of vehicles involved in the collision, and the condition of those present, have yet to be confirmed by officials. The nature of the crash, however, has led to a complete halt of westbound traffic since approximately 3.20pm, highlighting the severity of the incident.
The Severn Bridges official social media channels have been actively updating the public on the unfolding situation. In a statement posted on X (formerly Twitter), they explained: “The #M48 #SevernBridge in South Gloucestershire is CLOSED westbound between J1 (#Aust) and J2 (#Chepstow) due to a collision. Traffic is being diverted via the #M4 Prince of Wales Bridge. Expect delays and allow for extra journey time.” The message was followed by further notifications regarding the presence of recovery teams working to clear the affected vehicles.
Eyewitnesses and local traffic monitoring services report significant tailbacks on approach to the closed section. Inrix, a travel information provider, also noted that congestion was steadily mounting in surrounding areas, as drivers sought alternative routes or awaited further instructions.
This closure of the M48 Severn Bridge comes at a particularly inconvenient time, coinciding with the typical surge in afternoon and evening travel. For many, the bridge is a crucial link connecting South West England with South Wales, and any disruption can have far-reaching effects both locally and across national traffic networks.
Commentary from frequent users of the route highlights the importance of timely, clear information in minimising stress and confusion during such incidents. Some have raised concerns about how quickly the diversion was communicated to drivers already on the approach roads, and called for improved signage and real-time updates in future situations.
As investigations into the cause of the multi-vehicle crash continue, the safety of those involved and the welfare of motorists waiting in the resulting congestion remain a top priority for authorities. Motorists are advised to follow official updates from Traffic Wales, local radio, and National Highways for the latest information on when the Severn Bridge westbound is likely to reopen.
For now, drivers are urged to show patience and understanding as emergency and recovery teams work to clear the scene and restore normal traffic flow as soon as it is safe to do so. Further updates are expected throughout the evening as more details become available.