The resurfacing project started in December and will see 16km of this Essex and Suffolk road improved. The scheme was originally due to finish at the end of March, but because of additional work and the weather it has been slightly delayed.
Highways Agency’s project manager for the scheme, Anna Graham, said:
The improvements will finish later than anticipated because of the weather and additional work which we didn’t anticipate.
We found the road was in a worse state of repair than originally thought, so we have had to plane out more to compensate.
We apologise for the delay and I’d like to thank drivers for their patience while this work continues and ask drivers to take care travelling through the roadworks and adhere to the 40mph speed limit.
At junctions 33-31 the current phase of work is due to be completed by Monday, 9 March where the contraflow will switch to the northbound carriageway. This work will require overnight closures for four nights, two nights in each direction.
The closures will take place overnight from Monday, 9 March between 9pm and 5am. Following the closures resurfacing of the northbound carriageway can begin.
There will be a clearly signed diversion route in place for the closure of the A12 northbound from junction 31 (Four Sisters interchange). Traffic will be diverted onto the B1070 to the A137. HGVs will go via A133, A137 and A14.
At junctions 11-12 near Brentwood, there will be a northbound carriageway closure starting tonight (Monday) for up to two weeks. The current phase of work is due to be completed by 14 March, when the contraflow will switch to the northern section of the southbound carriageway. This will require two nights of closures on 14 and 15 March between 9pm and 6am.
During this time, for the A12 between junction 11 and 12 a clearly signed diversion route will be in place from junction 11 (Brook Street) via the A1023 and back onto the A12 at junction 12 (Mountnessing).
The main work will be carried out at night using contraflow, so the road remains open. During the day the road will be open with two lanes operating in both directions.
The work is dependent on suitable weather conditions, and dates may be subject to change.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.