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A new viaduct has been built over Borough Market as part of the Thameslink Programme, doubling the number of tracks heading west out of London Bridge station.

The Borough Viaduct, which runs alongside the existing rail bridge above the market, was completed in 2011. It was then brought into use in January 2016. The viaduct increases the number of trains that can travel through the station to Charing Cross, Blackfriars and beyond, reducing delays for passengers.

The Borough Viaduct is four times as long as Buckingham Palace, stretching from Metropolitan Junction to London Bridge station. With its tubular bow truss the bridge, it forms a striking new gateway to the City of London and is a key statement for the Thameslink Programme.

Construction of the Borough Viaduct – in 60 seconds!

The bridge was constructed on top of the new viaduct and was slid into place over a long weekend in Spring 2011. This minimised disruption and road closures during the installation and helped us keep road and rail traffic moving during the work.

Borough Market traded as usual throughout the works. Some pitches were moved to a purpose-built trading space within the existing market footprint, and were moved back to the main market hall when work was completed.


The viaduct design has preserved as much of the local heritage as possible. The listed Globe pub was retained. Meanwhile, the Victorian market roof was taken off site to be refurbished before being reinstalled when the viaduct was complete.


Archaeological work during construction of the new

Borough Viaduct uncovered a wealth of remains from the Roman, Saxon, medieval and more recent periods that provide a fascinating insight into the formation and growth of the ancient settlement at Southwark.

Stand out finds included:

  • Traces of early Roman military occupation
  • Evidence for the Boudican revolt
  • A previously unknown Roman bathhouse under Borough High Street
  • Substantial evidence for the Saxon/medieval defences of the settlement
  • The remains of townhouses of important medieval clerics and the St. Saviour’s/Park Street burial ground.

The Government-sponsored Thameslink Programme is transforming north-south travel through London. Find out more about how the Thameslink Programme is creating new railway infrastructure and stations, leading the way in adopting new digital technology and providing new trains.

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