Commendation: Repair and Rehabilitation of Daly's (Shakey) Bridge
RPS Consulting Engineers Ltd
Cork City Council
PROJECT MANAGEMENT, STRUCTURAL ENGINEERING, BRIDGE ENGINEERING, ENVIRONMENTAL AND ECOLOGICAL SURVEYS AND CONSENTS, PLANNING, FEATURE LIGHTING AND ELECTRICAL DESIGN, CONTRACT ADMINISTRATION, PROJECT SUPERVISOR FOR THE DESIGN PHASE (PSDP) AND SITE SUPERVISOR
RPS Consulting Engineers
PAINTWORK AND WELDING SPECIALIST
Corrosion Solutions and Inspection Services
Mackey Plant Ltd
The faithful restoration of one of Cork’s most iconic structures. The timely execution of the structural repairs ultimately prevented the introduction of load restrictions and eventual closure of the bridge. Analytical structural models and physical accelerometer measurements were used to record and monitor the natural frequency and vibration response of the structure before and after the repair works.
Submitted in 2021
This 51m long cable suspension bridge is a well-known local landmark and its colloquial name, ‘Shakey bridge’, derives from the lively movement of the deck under pedestrian loading. It remains the only suspension bridge in Cork City and the only surviving bridge of its type in Ireland.
This comprehensive rehabilitation project included the phased dismantling of the latticed deck for off-site for grit-blasting, structural repairs and repainting. Temporary working platforms enabled structural repairs and repainting of the steel towers in-situ. The team employed innovative technology and techniques in the restoration: 3D terrestrial laser scanning acquired accurate detailed survey information of the bridge geometry.
The successful refurbishment has considerably extended the service life of the bridge, avoiding the need for demolition or replacement. The team embedded the circular economy principles of reuse and repair as part of their refurbishment approach and demonstrated an excellent application of conservation principles.
The judges admire the meticulous work that was undertaken to understand and minimise alterations and retain the ‘shake’ of the bridge.