The 525-foot long, Grade A-listed North Bridge was originally constructed in the late 1800’s. After many years of heavy use, exposure to the elements and limited maintenance due to poor access, the iconic structure has started to crumble.
Due to the growing risk to both pedestrians and the railway that passes beneath the bridge, The City of Edinburgh Council commissioned Balfour Beatty to carry-out the refurbishment of the historic three-arch bridge via the SCAPE Scotland Civil Engineering framework. Works include:
Once completed the works will extend the lifespan of the bridge and remove the need for further maintenance work for approximately 25-years.
The bridge sits above Waverley railway station and railway lines and provides a vital connection for both vehicles and pedestrians between the old and new towns, both of which are UNESCO World Heritage Sites.
The logistics of maintaining access required careful consideration, collaboration and management. Utilising a suite of digital tools has helped us to mitigate and manage risk and minimise disruption to ensure successful project delivery. Using BIM we created a BIM Execution Plan to help inform buildability decisions and clash detection. 3D laser scanning and drones helped us to model the bridge to support the council with planning and support with future maintenance on the bridge.
As part of our broader plans to create a people-focused Capital under the long-term City Centre Transformation programme, the road running over the bridge will eventually benefit from active travel improvements, connecting to our growing network of walking and cycling-friendly routes.
Transport and Environment Convener
The City of Edinburgh Council