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 WHY IS IT NECESSARY TO REPLACE THE BRIDGE

The bridge is at the end of its useful life and is beyond simple repair and maintenance. Replacing the bridge will ensure it is safe, avoid the need to restrict the weight of vehicles using the bridge and reduce the need for unplanned closures for repair or maintenance.

HOW MUCH WILL IT COST ?

Transport for London is investing around £32m to replace the bridge.

The replacement of Ardleigh Green Bridge is part of the Road Modernisation Plan. The Road Modernisation Plan is the biggest investment in London’s roads for a generation, consisting of hundreds of projects to transform junctions, bridges, tunnels and pedestrian areas. Working with London’s boroughs, it will make our roads safer and more reliable, and London will be a better place in which to live, work and travel.

WHAT IS THE SCHEDULE FOR THE WORKS?

The works are split into two phases:

Advance Works – building a new service bridge to carry utilities (gas, electricity and water) which are currently buried in the carriageway. This will enable demolition of the existing bridge to make way for the replacement

The next major milestone will be lifting the utility services bridge into place. The service bridge will be constructed in a staging area and then lifted into place towards the end of 2015. The utilities will then be moved from the carriageway into the new service bridge (from early 2016) and be ready for the start of the main bridge works in mid 2016.

Main Works – the demolition and replacement of the bridge itself. The main works will take place between mid 2016 and the end of 2017.

The new utilities bridge will serve as a temporary pedestrian footbridge while the main bridge is reconstructed.

HOW LONG WILL THE WORK TAKE?

The works will be completed by the end of 2017.

WHAT EFFECTS WILL THE WORKS HAVE ON TRAFFIC AND ROADS IN THE AREA?

The works will happen in an area along the A127 from Squirrels Heath Road/Ardleigh Green Road junction to a point midway between the bridge and Gallows Corner roundabout.

Prior to the main bridge replacement some short–term lane closures will be necessary. For example from 5 October to 15 November 2015 we need to replace the central barriers with a temporary barrier in preparation for transporting the new utility services bridge across the road. During this time a single lane closure of the A127, in both directions, will be in place.

For a short period during this time we also need to close the right-turn from the A127 into Ardleigh Green Road. In order to minimise disruption we will do this during the school half term (23 – 30 October). Traffic will be diverted via the A127/Hall Lane flyover.

On a Saturday in December 2015 there will be an overnight closure of the A127 to lift the utility services bridge into place.

These are the most disruptive activities over the next year or so. It is likely that utility companies will need to close an eastbound lane for a relatively short period during the utility services diversions to install the new connections over the utility bridge.

During the bridge replacement works (mid 2016 – end of 2017) only two lanes will be operational (one lane in each direction). This is because we are replacing the bridge in two phases (eastbound first, then westbound). During the eastbound works the exit from Bryant Avenue onto the A127 south eastbound will be closed for approximately nine months (see below).

The main bridge replacement is dependent on Network Rail overhead line upgrade works.

WHEN WILL THE BRYANT AVENUE EXIT ONTO THE A127 BE CLOSED?

There will be two periods when the exit will be closed:

 Spring 2016 for about four weeks.

 Summer 2016 for about nine months.

Information on the exact dates will be available nearer the time.

WHY IS IT NECCESSARY TO CLOSE THE BRYANT AVENUE EXIT TO THE A127

 The closure is essential to provide sufficient space for the working area near the bridge. This is particularly important as the works are next to busy traffic and a live railway.

 A protective barrier needs to be in place on the bridge to stop vehicles driving onto the railway and into the works site. This barrier would restrict the movement of traffic exiting left from Bryant Avenue

In line with current Network Rail standards the new bridge will be higher than the current bridge. Raising the road surface requires steps to be in place at times during the works, which are unsuitable for traffic.

Utilities (gas, electricity and water) need to be diverted below and near the Bryant Avenue traffic island (requiring a shorter closure of Bryant Avenue in early 2016).

WHAT CONGESTION IS EXPECTED?

During the operation of a single lane in each direction large numbers of drivers are likely to seek alternative routes. We expect the largest increase in traffic along the A12 Colchester Road and on the M25 (between Junctions 28 and 29). As these are both major routes the additional traffic is likely to be only a small percentage increase over current levels.

There will be an increase in the number of vehicles approaching Gallows Corner.

We expect a small increase in traffic around Romford (the A1251 Mercury Gardens) as well as Slewins Lane and Squirrels Heath Lane.

WHAT IS TFL GOING TO DO ABOUT THE CONGESTION?

Transport for London will take positive measures to alleviate potential congestion by adjusting signal timings at pinch points and providing advance notices of alternative routes. We are working closely with borough officers to plan traffic diversions in order to minimise disruption. We will monitor the situation and also plan ahead for different scenarios

HOW DOES THE BRIDGE FIT INTO THE PLANS FOR CROSSRAIL?

The bridge headroom will be increased to accommodate Crossrail trains in the future.

 

Check live travel news at tfl.gov.uk/traffic/status/ or by following @TFLTrafficNews on Twitter.

Visit the project website at tfl.gov.uk/ardleigh-green

Email enquire@tfl.gov.uk or call us on 0343 222 1234

5 October 2015

 


Published on: 7 October 2015