**Major Incident Closes Section of A470 Near Cardiff Following Serious Collision**
A significant motorway accident has resulted in the closure of a stretch of the A470 near Cardiff, causing pronounced disruption for motorists travelling in the area. Emergency services were swiftly dispatched to the scene after reports of a severe collision on the southbound carriageway between Nantgarw and Taff’s Well early on Wednesday afternoon.
South Wales Police confirmed their attendance at the site and advised drivers to avoid the stretch of road if at all possible. The force issued an official statement urging people to find alternative routes, stating, “Please avoid the area and use alternative routes where possible. We’re grateful for your patience.” Details concerning the number of vehicles involved, or the scale of the injuries sustained, were not immediately available as emergency personnel continued their operations.
Both Traffic Wales and various traffic monitoring services have highlighted that the incident has led not only to extensive traffic jams on the southbound side—which has been closed entirely—but has also prompted significant delays in the northbound direction. These delays are understood to be exacerbated by the behaviour of onlookers, which is having a knock-on effect on the opposite carriageway.
The collision reportedly took place between the junction for the A468 Caerphilly Road at the Nantgarw Interchange and the A4054 at Taff’s Well Interchange. As a result of the seriousness of the incident, authorities have warned that the closure may remain in place for an extended period, though precise timings have not been provided.
Motorists have taken to social media to share their frustrations, with many describing being at a standstill for over an hour as recovery teams and investigators attend the scene. Scheduled plans for those travelling to and from Cardiff have been severely impacted, and local businesses have expressed concern about the potential knock-on effect of prolonged disruption to such a key arterial route.
The cause of the crash has not been made public while investigations are ongoing, and it is not yet known whether weather conditions or any other contributing factors may have played a role. Incidents of this nature often prompt discussions about road safety on this busy route, which serves as a major link between South and North Wales and is renowned for high volumes of commuter and freight traffic.
With emergency services in attendance, including paramedics and fire crews, authorities are focusing on managing the scene and maintaining public safety. Police have reiterated the importance of not attempting to cut through back roads or use unauthorised diversion routes, as this can lead to further congestion and can hinder emergency access.
Residents in nearby communities have reported increased congestion on residential roads as motorists attempt to bypass the closure. Traffic planners are working to manage flow and direct drivers towards main alternative thoroughfares.
This incident occurs against a broader backdrop of transport challenges in the region, with calls for further investment in road infrastructure and public safety initiatives. As investigations continue, South Wales Police are expected to update the public with further information once the area is deemed safe and the affected section of the A470 can be reopened.
Motorists planning to travel through the area are being strongly encouraged to check for the latest updates via Traffic Wales, travel apps, and local news before setting out, as conditions remain fluid and further delays are expected throughout the afternoon and into the evening.