SHC3_1

HOCHTIEF demolished and replaced four road-over-rail bridges in central London as part of TfL’s Structures and Tunnels Investment Portfolio (STIP). Highbury Corner Bridge carries the busy A1 over two rail lines and Highbury & Islington Overground Station and sits under the Highbury & Islington Station forecourt.

Key features:

  • Road-over-rail bridge deck demolition and reconstruction
  • Abutment refurbishment
  • Complex utilities diversions
  • Traffic Management
  • Phased reconstruction

With the bridge carrying over 25k vehicles a day in a very busy urban area, we completed the works in phases to limit disruption to the travelling public. We successfully demolished and replaced the first section of bridge over the London Overground line and beneath Highbury & Islington Station during two rail possessions in July 2016 and Easter 2017, completing the works right first time. We then completed the main demolition and replacement works over Christmas and New Year 2017/18 during an eight-day rail possession and three-week closure of the A1.

During demolition, we carefully monitored the abutments to ensure their continued stability. We optimised the bridge design to maximise offsite prefabrication, increasing quality and safety while reducing time on site to ensure that we could complete the main bridge works within the allocated rail possession. The bridge beams, cill units and end screens were all precast offsite and delivered “just in time” for the lift to minimise disruption to the road network.

We achieved a Considerate Constructors Performance Beyond Compliance award and successfully completed Highbury Corner bridge on time. The bridge was also selected as a finalist for Infrastructure Maintenance Project of the Year at the BCIA Awards 2018.