Tony Dempsey

Director, Roughan & O'Donovan

Tony is responsible for our major national and international bridge projects, managing all stages of the bridge development lifecycle from feasibility study, preliminary and detailed design to construction supervision.

My Sessions at Bridges 2026

Wednesday 11 March 2026

14:00

Engineering Motion on the Clyde: The Renfrew Swing Bridge

14:00 - 14:20

  • The project features a unique twin-leaf cable-stayed swing bridge designed to maintain a 90m navigational channel, utilizing complex mechanical systems—such as slewing bearings, end wedges, and bespoke expansion joints—to manage span balance and operational loads.

  • Success was driven by rigorous aerodynamic wind-tunnel testing to refine deck fairings against vibration, paired with a sophisticated logistics strategy involving global structural analysis for the fabrication and marine transport of the spans from the Netherlands.

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