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Track and infrastructure upgrades on the Great Western main line

Major upgrades are being delivered to allow more trains to run more reliably once Crossrail services begin. These include:

Stockley Flyover

Stockley Bridge replacement works April 2014_136396

A new flyover is being installed at the junction to Heathrow in west London to add capacity this busy section of the railway.  This consists of a new bridge to carry the trains coming from Heathrow over the Great Western main line leading to a viaduct and two ramps to link in with the tracks heading into Paddington.

At 120m long, the 1,000 tonne bridge is the largest single span rail bridge to have been installed anywhere to the west of London since the days of Brunel and the whole structure stretches to more than a mile in length. 

Once complete, it will ensure that Crossrail and Heathrow Express services heading towards central London will be able to join the Great Western main line without delaying, or being delayed, by other trains using the route.

The first ramp, now being used by Heathrow Connect services, has been in use since January 2015. The second ramp, that will be used by Heathrow Express services, is currently being constructed and will come into service in 2017.

The bridge has been named ‘Sams Bridge’, after Richard Sams who had been the project engineer on Stockley from its inception in 2011 and whose work on the project played a major part in ensuring its success.  Richard sadly died suddenly in 2014 while on holiday in Mexico.

Acton Dive-under

Contstruction of new diveunder at Acton_carousel_210013

A dive-under is an underpass which allows trains to pass under another railway track without being held up by trains on the above track.  The new dive-under at Acton is needed so that trains leaving the nearby freight yard do not delay passenger trains heading toward central London. 

Currently freight trains leave the yard by crossing the passenger tracks between Ealing Broadway and Acton Main Line stations.  The new dive-under will allow Paddington-bound passenger trains to pass under an exiting freight train without being delayed, increasing capacity and reliability.

The excavation of the dive-under itself began in October 2013 following nearly two years of work to re-configure the freight yard, which involved moving the tracks in the yard eight metres to the north, line by line over many weekends, and then putting in a new junction. The track has been installed within the dive-under which will come into service at the end of 2016. 

Electrification

Overhead power works near between Maidenhead and Slough_218136

The Crossrail programme includes the electrification of the Great Western route between Stockley Flyover and Maidenhead, beyond which the task is picked up by Network Rail’s Great Western Mainline electrification team. 

This work has involved the installation of 1,400 piles beside the tracks to provide foundations for the overhead line equipment and the erection of steel structures at approximately 50 metre intervals on both the main and relief lines to support the overhead wires.  Vegetation has also needed to be cleared along the trackside in order to provide a safe environment for the operation of the high voltage wires.

The piling is nearing completion.  Most of the structures have been erected and the wires are currently being installed along the route.  Construction is expected to be completed by Christmas 2016, allowing testing to take place soon after.  The overhead lines are expected to be operational from early 2017.  This will not only allow the operation of the electric Crossrail trains from December 2019 but it will also support the earlier introduction of electric trains on the Great Western main line.


Current Works

Kensal Green

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Description of work:

Network Rail is undertaking works on behalf of the Crossrail Programme. As part of this programme, construction works are to be undertaken on the existing railway immediately between Great Western Road and Golborne Road. These works are part of the adjustment to the existing railway infrastructure to permit the operation of new Crossrail trains.

Details of work as PDF:

Stockley Junction and Flyover

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Stockley Junction and Flyover

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Stockley Junction and Flyover

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Stockley Junction and Flyover

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Description of work:

Work on the Heathrow branch

Details of work as PDF:

Old Oak Common Depot

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Description of work:

Construction and operation of a depot for a logistics hub at Old Oak Common

Details of work as PDF:

Old Oak Common Depot

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Description of work:

Commencement of construction of new depot for Crossrail trains at Old Oak Common

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Trackside work in including the installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Work on and beside the tracks between Acton Wells and Hanger Lane

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Overhead line and cabling work between Hanger Lane bridge and Noel Road bridge

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Trackside work, including devegetation and cable pulling works

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Devegetation and cable pulling works

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Devegetation and cable pulling works

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Devegetation and cable pulling works

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Devegetation and cable pulling works

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock and general track works

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Trackside work including the installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Trackside work including the installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Installation of new power cables from Old Oak Common to Hayes & Harlington station as part of upgrading the power supply in preparation for the new rolling stock

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Overhead line & cabling work and other work on and beside the tracks between Ealing Broadway and Acton Main Line stations

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Piling and cable installation work between Western Avenue and Old Oak Common Lane

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Work to overhead line structures and power supplies

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Trackside work in the West Ealing area

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Construction of a dive-under and consequent works to alter the track layout within the Acton Yard

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Construction of the western end of the dive-under

Details of work as PDF:

Old Oak Common to Stockley

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Old Oak Common to Stockley

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Old Oak Common to Stockley

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Old Oak Common to Stockley

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Description of work:

Trackside work in the West Ealing area

Details of work as PDF:

Old Oak Common to Stockley

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Description of work:

Network Rail is undertaking works in your area on behalf of the Crossrail Programme. Construction works are due to be undertaken during the Christmas and New Year period in the local area. These works are part of the adjustment to the existing railway infrastructure to permit the operation of new Crossrail trains. Paddington Green School’s grounds will be utilised during the Christmas and New Year period for car parking and transportation of workers to our work sites via mini-buses.

Details of work as PDF:


Contact us

Complete our contact us form to receive regular updates about work in the local area. 

If you have queries about the work taking place please contact Network Rail, which is delivering the Crossrail upgrades: