Severe delays with one lane blocked and stationary traffic due to an accident between a van and a motorcycle just before J11 M25 (Brook Street Roundabout), with major congestion to J14 (Margaretting). Travel time is more than 60 minutes.
Essex police has started extra patrols along the A12 today in an attempt to prevent people throwing objects from bridges on to passing vehicles.
The force has stepped up its patrols because in previous years there's been an increase in incidents between November and January.
Two serious incidents which happened last December are being investigated as attempted murder, but no arrests have been made.
A12 London bound in Essex is partially blocked due to a lorry shedding a load of wood before M25 J28 / A1023 Brook Street J11 (Brook Street Roundabout).
Traffic is slow and a road is blocked due to a collision involving a car and a lorry on A12 Northbound between A138 J19 / A130 Colchester Road / B1137 Main Road / Generals Lane (Boreham Interchange) and J20A B1137 (Hatfield Peverel South).
Three lanes blocked and queueing traffic for two miles due to overturned car on M25 clockwise at J28 A12 (Brook Street Roundabout)
Blocked northbound at Mountnessing after an accident involving three vehicles at junction 12. Traffic is queueing for several miles.
A12 London Road Northbound closed, queueing traffic due to accident between J24 B1024 (Kelvedon North) and A12 Colchester Bypass J25 / A120 Coggeshall Road / B1408 London Road (Marks Tey).
Heavy traffic on A12 Northbound at Keeper's Lane and Mill Lane.
Reports of A12 both ways blocked due to accident between J23 B1024 London Road (Kelvedon South) and J22 B1389 (Witham North).
A12 Main Road both ways blocked due to broken down car and caravan on the level crossing between The Street and Westleton Road.The barriers have come down between the car and caravan at the Darsham crossing, they remain in the down position and recovery may take some time.