I have received this update today from Anna Graham of the Highways Agency about progress of the resurfacing works on the A12 and installation of permanent speed cameras between the Essex border and East Bergholt B1070 junction.
I am writing to provide an update on our progress and make you aware of what is happening in the near future.
As you may be aware, poor weather and low temperatures have slowed progress on both the A12 J11 to 12near Brentwood and J33 Copdock to 31 East Bergholt schemes. In addition to this, in spite of our survey work prior to commencing construction work, the milled surface layer was in a lesser state of repair than expected. This was particularly so on the section near Brentwood where we have now replaced this lower layer to ensure the new material is laid on a sound surface. At J33-31 we only needed to repair smaller sections of this lower layer as it was in a better condition than J11-12.
We are now progressing well at J33-31 we have been concentrating on the planned areas of deeper treatment which may currently look like short sections of resurfacing, however, these have been deep repairs, once these have been completed we will be continuing milling out this section and laying long lengths of surfacing.
As well as the resurfacing work we have been renewing drainage channels, safety fence terminals and installing sign bases. You may also notice that the Permanent Average Speed Cameras are also beginning to be installed, this is a safety scheme which will share part of our traffic management to minimise disruption to road users. There will be separate overnight lane closures (traffic remaining on the A12) for those permanent average speed cameras located further south of the maintenance works. If you have any questions about the Permanent Average Speed Camera works, please contact Martin Oliver, Project Sponsor on Martin.Oliver@highways.gsi.gov.uk.
At J33-31 we are aiming to complete the current phase of work by Monday 9th March where we will switch the overnight contraflow onto the northbound carriageway near the Copdock roundabout and build the buffer zone (the cylindrical cones) on the southbound carriageway. In addition to the traffic management being moved, cabling for one set of cameras will be laid underneath the carriageway. It will be necessary to close the A12 overnight for four nights; two nights in each direction.
The overnight closures are expected to take place from 9th March. We would like to close the carriageway from 9pm until 5am. I appreciate that we proposed to close the carriageway between 10pm and 6am, however, traffic flows begin to increase and therefore, we would consider it better to remove the traffic management earlier. Traffic flows are quieter at 9pm and therefore, less likely to be disruptive for road users and residents.
There will be a clearly signed diversion route in place for the total Closure of A12 northbound carriageway from four Sisters interchange (J31) traffic will be diverted onto the B1070 to the A137 which brings traffic out onto J56 of the A14. HGVs will go via A133, A137 and A14. Vice versa for the southbound carriageway
“On all side roads Gatemen will be present to assist with members of the public who wish to access residences and business’ which may be affected by the road closures.
Following the four nights of closures overnight contraflow will be in operation to enable the resurfacing work of the northbound carriageway to begin. Overnight northbound traffic between J32b and J33 will be guided onto the southbound carriageway which will operate like a single carriageway road. Northbound traffic will be unable to exit local roads; they will be diverted to J33 to bring them southbound on the A12 where they can exit at the appropriate slip. The current speed restrictions will remain in place.
We are conscious that we need to make up time on the programme and therefore, we are looking to start the contraflow from 9pm to 6am Mondays to Thursdays, subject to traffic flows to provide a longer working window. Additionally, we will be working Fridays and Saturdays between 9pm and 8am, subject to traffic flows. I apologise for any inconvenience that this may cause, however, by increasing the working window we hope to reduce the overall time we are working on the road. We are currently programmed to finish all work between J33-31 in May.
At J11-12 near Brentwood, there will be a northbound carriageway closure starting Monday 2nd March for up to two weeks a clearly signed diversion route will be in place. The diversion route will be from J11, Brook St, via the A1023 and back on to the A12 at J12, Mountnessing. This will enable core samples and central reserve barrier work to be undertaken while allowing for the resurfacing to continue on the northern section of the scheme.
We expect to finish the current phase of work by 14th March when the overnight contraflow will be switched to the northern section of the southbound carriageway. This will require 2 nights of carriageway closure on 14th and 15th March, one night in each direction and will utilise the same diversion route as described above. The closure will be from 9pm and 6am subject to traffic flows.
From the 16th March we will be working to resurface the northern section of the southbound carriageway with contraflow in operation Monday to Saturday between 9pm and 6am, subject to traffic flows.
We are currently programmed to finish all the works between J11-12 at the end of April.
I hope the above is helpful and if I can be of further assistance please contact me
Anna Graham, Project Sponsor
Highways Agency | Woodlands | Manton Lane | Bedford | MK41 7LW”