A1(M) Junction 10, Stotfold Interchange bridge maintenance

We will be carrying out work to the A1(M) junction 10 bridge which carries traffic over Stotfold Interchange from February to November 2021. This is an essential bridge maintenance project to keep the structure in a safe and serviceable condition. We are also carrying out essential work to the A1 southbound between A1 southbound Biggleswade South – Langford Hill, including resurfacing, and refreshing white lines and road studs.

Start date 15 February 2021
End date 19 November 2021
Cost £2.5 million

Latest updates

  • 23 July 2021

    Summer road closures and diversions

    To safely do our work we will need to close the road on the following dates:

    Northbound closures between junctions 9 and 10

    Northbound full closure between A1M Junction 9 and Junction 10 

    Dates:

    • Monday 23 August (8pm to 6am)
    • Monday 6 September to Wednesday 8 September 2021 (8pm to 6am)
    • Friday 20 August  to Monday 23 August – full weekend closure (8pm Friday to 6am Monday)

    Diversions:

    Traffic will leave the A1(M) at junction 9, join the A505, the B656 and the A507, to re-join the A1(M) at junction 10.

    Diversion map:

    A1M Northbound at junction 10

    Date:

    • Friday 17 September to Monday 20 September 2021 - full weekend closure (8pm Friday to 6am Monday)

    Diversion:

    Northbound traffic will use the exit slip and re-join the A1(M) using the junction 10 entry slip.

    Diversion map:

    Junction 10 southbound closure

    Southbound full closure between Biggleswade North roundabout and A1M Junction 10 

    Dates:

    • Friday 10 September to Monday 13 September – full weekend closure (8pm Friday to 6am Monday)
    • Monday 13 September (8pm to 6am)

    Diversions:

    Traffic will leave the A1 at the Sandy Roundabout, join the A603, the A421 and the A6, to join the A507 and re-join the A1(M) at junction 10.

    Diversion map:

    A1(M) northbound and southbound at junction 10 (24/7)

    Dates:

    • Friday 10 September to Monday 13 September – full weekend closure (8pm Friday to 6am Monday)

    Diversions:

    Northbound and southbound traffic will be diverted off at junction 10 to re-join the A1 using the junction 10 entry slip.

    Diversion map:

    Stotfold Interchange (junction 10)

    Lane closures on the roundabout off the A507 underneath the A1M, near the Baldock Services area

    Dates:

    Until end of October 2021.

    No diversion required, as roundabout will be open but just with reduced lanes.

    Stotfold Interchange full closure (junction 10)

    Full overnight closure of the interchange (8pm – 6am). The Baldock services will remain open.

    Dates:

    • Saturday 31 July (8pm – 6am)
    • Saturday 4 September (8pm – 6am)
    • Saturday 2 October (8pm – 6am)

    Diversions:

    Local traffic wanting to travel eastbound on the A507 will be diverted to join the A1 northbound to the Biggleswade Roundabout to return southbound at junction 10 to re-join the A507 eastbound.

    Diversion map:

    Local traffic wanting to travel westbound on the A507 will leave the A1 at junction 10 to join the A507, B656, A505, Norton Way South, Norton Way North and Norton Road to re-join the A507 westbound at junction at Stotfold.

    Diversion map:

Project information

Overview

Bridge work will include replacing the parapets, waterproofing the structure and resurfacing of the bridge.

Where possible, we will use permanent lane closures with speed restrictions to complete this work.

The bridge work will improve safety, the road surface and service life of the bridge.

The essential work between A1 Biggleswade South and Langford Hill will improve the safety of the road surface, as well as renewing road markings and road studs.

Documents

Traffic information

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

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