m3 closures have been enforced after two HGVs collided and spilled diesel on the eastbound carriageway near Bagshot, closing the M3 between Junction 3 and Junction 2 at about 11: 00 PM ET. Emergency services — Surrey Police, Surrey Fire and Rescue Service and South East Coast Ambulance Service — are on scene; both drivers are out of their vehicles and are being checked by health professionals. The collision ruptured a fuel tank and left debris under a damaged gantry, with officials warning the m3 closures will remain in place while cleanup and inspections continue.
M3 Closures: crash details and traffic impact
Police and highways officers say two heavy goods vehicles collided on the eastbound carriageway; one struck a gantry and the other suffered a ruptured fuel tank, spreading diesel across lanes. The extent of debris and the fuel spillage prompted immediate m3 closures eastbound between Junction 3, near Bagshot, and Junction 2 by the M25. Emergency crews also confirmed that two lanes of the M25 junction have been reopened to allow vehicles to join the road, but the primary carriageway remains shut. National Highways reported long delays of up to 30 minutes for traffic in the area and has put a diversion in place to steer vehicles around the scene.
Emergency response and official statements
A spokesperson for Surrey Fire and Rescue Service said: “We received a call at 4am to a road traffic collision on the M3 between junction 3 (Lightwater) and Junction 2 (Thorpe). ” The spokesperson added that four fire engines attended and that “the eastbound carriageways are closed. We are expecting closures to be in place for some time due to debris. ” A National Highways spokesperson warned of “long delays of up to 30 minutes, ” and confirmed traffic officers and contractors are assisting on scene. South East Coast Ambulance Service and Surrey Police remain at the location while health partners check both drivers.
Diversions, advice and short context
Motorists affected by the m3 closures are being diverted off at Junction 3 to the A322, then routed the A30 through Sunningdale and Egham before joining the M25 at Junction 13 and rejoining the M3 at Junction 12. Officials advised drivers to allow extra journey time and to avoid the M3 eastbound where possible while crews clear the diesel and debris. The motorway is described as a busy route and the collision has brought traffic to a standstill in the affected direction.
What happens next
Crews will remain on scene while the fuel spill is contained, debris removed and safety checks performed on the damaged gantry; closures are expected to last as teams carry out recovery work. National Highways and emergency services will update routing and reopen lanes when it is safe to do so, but for now the m3 closures will continue to disrupt eastbound travel. Motorists should follow the diversion signs and expect delays while authorities manage the incident and complete clearance operations.
