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  • Newport

    The electrification of the Great Western route requires work to the South Wales Mainline – an important route linking major towns and cities across the region

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  • See Great Western route modernisation for information about the benefits of the project for passengers, the economy and the environment.

    The South Wales Mainline runs from the Severn Tunnel in Monmouthshire, through Newport, Cardiff, Bridgend, Port Talbot, Neath and Swansea. Work began in Newport in autumn 2015 and will continue until late 2018.

    South Wales electrification FAQ (2.2 MB)

    Piling Work

    We're carrying out piling work in the Newport area at various points throughout 2016 and 2017. Piling is an essential activity in the process to electrify the South Wales Mainline, as it creates the foundations for the overhead posts and wires that will power the new trains. 


    Newport station

    To electrify the South Wales Mainline we will be carrying out essential work on the platforms at Newport Station throughout 2016. To install the overhead lines we will be piling the foundations into the platforms for the new posts and wires that will power the trains.  We will also be cutting back the canopies.
    Platforms will remain open but please check before you travel for changes to night time and early morning trains.

    Bridge and structure works

    As part of our plan to electrify the South Wales Mainline, we have identified that a number of bridges in Newport will require modification as they are too low to accommodate the overhead wires.

    Map of bridge works in Newport

    Structure Planned works Proposed start date Proposed end date Additional information
    Somerton Road bridge Reconstruction September 2015 June 2016

    The bridge will be closed to vehicles and pedestrians in November 2015 (and will remain closed until Spring 2016). An appropriate diversion is in place for road traffic and a temporary footbridge has been installed directly to the east of the bridge to maintain access for pedestrians.

    Somerton Road Bridge Reconstruction May 2016 newsletter
    Somerton Road Bridge Reconstruction February 2016 newsletter
    Somerton Road Bridge Reconstruction December 2015 newsletter
    Somerton Road diversion for vehicles
    Somerton Road diversion for cyclists
    Somerton Road Bridge project FAQ
    Newport station footbridge Demolition Summer 2016 Late 2016 The redundant footbridge will be removed.
    Chepstow Road Rail bridge Minor works Summer 2016 Summer 2016  
    Bridge Street road bridge Reconstruction 3 May 2016 Late 2016 The road will be closed from 3 May 2016 until late 2016. An appropriate diversion will be in place for road traffic and pedestrian access will be diverted over the neighbouring Tunnel Terrace footbridge.

    Bridge Street diversion map 
    Bridge Street public events poster 
    Bridge Street FAQBridge Street Reconstruction April 2016 newsletter   
    Tunnel Terrace footbridge Reconstruction / jacking TBC TBC  
    Newport old tunnel Track lower TBC TBC  
    Cardiff Road bridge (Oaks) Reconstruction November 2015 May 2016 The bulk of work has now been completed, with some minor works now planned for summer 2016.
    Cardiff Road Bridge Reconstruction May 2016 newsletter
    Cardiff Road Bridge Reconstruction February 2016 newsletterCardiff Road Bridge Reconstruction December 2015 newsletter  
    Maesglas Road bridge Reconstruction September 2016 2017  
    Cuckoo Road bridge Reconstruction November 2015 April 2016 The road is expected to be closed for the duration of the scheme.
    Maerdy Farm road bridge Reconstruction November 2015 April 2016 The road is expected to be closed for the duration of the scheme.
    Hawse Lane road bridge Reconstruction Summer 2016 Spring 2018  
    Summerway Road bridge Reconstruction June 2016 TBC The road is expected to be closed for the duration of the scheme.
    Green Lane / Heol Las road bridge Reconstruction Summer 2016 Spring 2018 The road is expected to be closed for the duration of the scheme.

    As part of the project, we will also clear overgrown vegetation running alongside the railway. Find out more about how and why we manage vegetation.

    We also need to carry out piling works required to install foundations for the overhead electrical lines. This work will largely take place largely over night at intervals throughout 2015 and 2016.

    Work at some of the bridges is due to begin in autumn 2015, however, the bulk of work will be undertaken in late 2015 and 2016.

    Delivering our work responsibly

    We recognise that work to electrify the South Wales Mainline may cause some disruption in local communities but we’ll do our very best to limit this.

    Safety is our number one priority and for this reason, some of the work must be carried out while trains are not running. Also, we are contractually obliged to work at times that cause the least disruption to services. This means carrying out some of our improvement work during the night.

    Alongside our partners, we will endeavour to work responsibly ensuring construction sites are managed effectively. For those living close to the railway, engineering work can be noisy – but we will try to keep disruption to a minimum, particularly at night time.

    Undertaking work to bridges will require the temporary closures of roads and footpaths - but we are working closely with local councils to agree suitable diversionary routes and are committed to completing construction as quickly as possible.