Lucy Chadwick

Director - Major Bridges, Ramboll

Lucy is an experienced design engineer, team leader and project manager with over 25 years' experience in the construction industry. She is currently the Head of Department for Ramboll's UK Major Bridges department.

Lucy has worked as the structures technical lead on the M27 Junction 10 Project since 2022 covering initial and detailed design, integration of the Freyssinet jacking system and site support including the Christmas ’25 box slide. Other experience includes the design of the Mumbai Trans Harbour Link in India, Storstrom Bridge in Denmark. And the Queensferry Crossing in Edinburgh.

My Speaker Sessions

Tuesday 24 November 2026

15:40

Creating a New Motorway Underbridge Using the Box Slide Technique

15:40 - 16:05
  • The presentation will focus on the choice of a box slide construction methodology to construct a new dual carriageway underpass beneath a busy stretch of the M27 motorway in Hampshire.
  • This will cover the design stages from optioneering to detailed design, construction challenges and complex installation methodology associated with this method.
  • The presentation will also cover the decision to close the motorway for a 10 day period over Christmas 2025 to facilitate the installation, how this was communicated to the public, and the positive feedback received.

Speakers