M4 junctions 12 to 13 Tidmarsh Road Pier Refurbishment

Concrete repair to Centre Bridge Pier and upgrade to Vehicle Restraint Barrier.

Start date 26 February 2021
End date 25 August 2021
Cost TBC

Latest updates

  • 12 August 2021

    Overnight closures - 16 to 25 August

    The M4 between junctions 12 and 13 will be closed overnight (9pm to 6am) on the following dates:

    Monday 16 and Tuesday 17 August

    M4 WESTBOUND from junction 12 to junction 13 

    (Please note on the same nights, the M4 Motorway Upgrade project will also be closing M4 junctions 12 to 11 eastbound - this closure should not have an impact on the westbound closure. More information is available here)

    Wednesday 18 and Thursday 19 August

    M4 EASTBOUND and WESTBOUND between junctions 12 and 13

    Monday 23 August M4 EASTBOUND from junction 13 to junction 12
    Tuesday 24 August M4 EASTBOUND and WESTBOUND between junctions 12 and 13
    Wednesday 25 August M4 EASTBOUND from junction 13 to junction 12


    During the closures, a signed diversion will be in place via the A4.

Project information

Overview

We’re carrying out concrete repairs to the Tidmarsh Road bridge which spans the M4, and upgrading the safety barrier which protects vehicles from impacting the bridge.

To allow us to carry out the repair to the centre pier of the bridge, narrow lanes and a 50mph speed limit are in place on the M4 between junctions 12 and 13 in both directions. Free breakdown recovery is available.

Ensuring structural integrity and upgraded safety barrier.

Documents

Traffic information

Information about scheduled roadworks and events on our motorways and major roads.

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