M18 junction 1 to junction 7

We’re providing drivers with smoother and safer journeys along the M18 between junctions 1 and 7.

Start date 12 October 2020
End date End of January 2021
Cost £1.2 million

Latest updates

  • 22 September 2020

    Wadworth Viaduct work starts

    Wadworth viaduct is a seven span structure carrying the M18 over the A1(M) in South Yorkshire. The structure is over 40-years-old and some of the parapets (bridge barriers) need upgrading.

    To keep disruption to a minimum we’re planning the main work on the M18 as follows: 

    It is proposed to carry out the work using overnight full carriageway closures of the M18 between 8pm and 6am.

    24/7 hard shoulder closures on the M18 with temporary concrete barrier within the hard shoulder.

    The road closures underneath the bridge i.e. the north and south interchange roads, A1(M) carriageway and White Cross Lane will be fully closed in phases.

    Diversion routes for the above closures will be fully signed. Access will be maintained for local traffic to properties and affected businesses within the closure. Emergency vehicles and police will also be able to gain access where needed throughout the work.

    We’ve also now completed all the drainage improvements and the bridge work at Loversall Bridge.

  • 04 February 2020

    Continuing maintenance and renewal work

    In February we started replacing the joints on Loversall Bridge located between junctions 3 and 4. Expansion joints help bridges move under the stresses and strains of traffic and during changes in temperature. This work will also include resurfacing and last for around one month.

    We’ll need four overnight closures at the start of the scheme for resurfacing with diversions via A6812 / A18 / A630 northbound and in reverse southbound. The rest of the scheme we’ll use hard shoulder or lane two closures overnight between 8pm and 6am to reduce the number of full closures. A 50mph advisory speed limit will be in place.

    In March, we’ll start working on the link roads between the M1 and M18; replacing 1,355 metres of safety barrier, renewing traffic signs and installing 480 of new drains and gullies to help improve safety in flooding hotspots.

    We’re carrying out drainage repairs in the hard shoulder and carriageway to clear out, reline and replace sections of gullies and pipes, again to improve safety and prevent flooding between junctions 2 and 3.

    This will require:

    • Weeknight full closures of the M18 to M1 northbound and M1 southbound to M18 northbound link roads for the barrier replacement work
    • The drainage work on the link roads will be carried out under full weekend closures on the M18 to M1 northbound link road. For the M18 to M1 southbound we’ll use lane 1 closures and a full closure at both the start and end of that section of work


    The M18 junctions 2 and 3 drainage work will start and end with a full closure in each direction, separately, so we can install temporary barriers. The work will take place overnight with separate lane 1 and lane 2 closures. We’ll also need to close the M18 junction 3 entry southbound slip road over the weekend to carry out some excavation work.

    All overnight closures will be between 8pm and 6am and any weekend closures will run from 8pm on Friday to 6am on Monday.

    We expect this work to take around four months.

Project information


We’re investing over £4m in the M18 to provide drivers with smoother and safer journeys. The work includes resurfacing, new road markings, replacing road studs and replacing traffic sensors.  

We're planning a range of improvements along this route as part of our multi-million investment in Yorkshire and the Humber. This includes renewing existing safety barriers, installing some sections of new barrier, replacing signage, resurfacing, and drainage work to create safer journeys with increased visibility for road users. 

We're also replacing the existing bridge joints to strengthen Wadworth and Loversall bridges. 

This follows our £2 million investment carried out between July and September 2019 to resurface sections of the 26-mile motorway, renew road markings and reflective road studs. 


Traffic information

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

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