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We are investigating 48 important drainage culverts (a tunnel carrying a stream under a built up area, road or railway) across the city. They could cause flooding because they need to be repaired or have limited capacity.

There is a risk of flooding to nearby homes and businesses from the selected culverts. This scheme will improve the level of flood protection to surrounding areas.

Progress and next steps

  • The consultant, SWECO, was appointed in February 2015 to carry out surveys and engineering assessments of the 48 culverts
  • Extensive surveys and assessments are now underway
  • Consultation on plans where and when applicable
  • Examination of options that can be submitted for Government funding approval will follow
  • Invite interested companies to bid for the work
  • Appoint a construction contractor Summer 2018
  • Start work on site Autumn 2018
  • Main construction scheduled to be complete by early 2020