A12 Crash Today: Severe Traffic Delays After Multi-Vehicle Collision

Chelmsford, Essex — A serious multi-vehicle collision on the A12 has resulted in significant disruption for motorists traveling through Essex, with southbound lanes closed near Chelmsford as emergency services respond and police investigate the incident.

The crash occurred during the morning commute on the southbound carriageway of the A12 near Chelmsford, bringing traffic to a standstill and creating lengthy queues stretching for several miles. Emergency services arrived promptly to secure the scene, assist those involved, and begin managing the flow of traffic around the affected section of the roadway.

National Highways has confirmed that multiple southbound lanes remain closed while emergency responders and recovery teams work to remove damaged vehicles and clear debris. Diversions have been implemented around nearby junctions to help ease congestion, though motorists are advised to expect substantial delays and consider alternative routes where possible.

Essex Police, ambulance crews, and National Highways traffic officers remain at the scene coordinating the emergency response. Paramedics have been assessing those involved in the collision, while police have established traffic management measures to ensure the safety of motorists and emergency personnel working along the carriageway.

Authorities have not yet released official information regarding the number of vehicles involved or whether anyone sustained injuries. Further details are expected once emergency operations have progressed and investigators have had an opportunity to examine the scene.

Essex Police have launched an investigation into the circumstances surrounding the collision. Officers are gathering evidence, interviewing witnesses, and reviewing any available dashcam footage to determine what led to the crash. Anyone who witnessed the incident or captured relevant footage is encouraged to contact police to assist with the investigation.

Drivers approaching the affected area are urged to remain patient, follow diversion signs, and avoid using the hard shoulder or attempting unsafe maneuvers to bypass congestion. Officials emphasize that keeping emergency access routes clear is essential while recovery operations continue.

The A12 crash remains an active incident, with recovery crews working to reopen the affected lanes as quickly and safely as possible. Motorists are encouraged to monitor official updates from National Highways and Essex Police for the latest information on road conditions, traffic delays, and the reopening of the southbound carriageway.