Two incidents are causing tail backs on the A12.
According to the Essex Traffic Control Centre, a car has struck the central reservation at about 5pm today on the A12 northbound between the Boreham interchange and Hatfield Peverel.
One lane was closed south bound but has since reopened.
A lorry has also crashed on the same stretch of road and this had closed two of the three lanes northbound, but there is now only one lane blocked.
Queues are back to junction 16 (Galleywood).