Roberts Road Bridge
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Project
Project
Project
Project
Project
Project
Project
Project
Roberts Road Bridge
Location Project Date Client
South Wales July 2015 - April 2016 BAM Nuttal
The Roberts Road Bridge project is part of the Great Western electrification project from Network Rail, which includes work to the South Wales mainline – an important rail route linking major towns and cities across the region.

Roberts Road Bridge is a four span overbridge crossing the Up and Down Main and Relief Lines of the South Wales Main Line (SWM2) with one span crossing the site of removed sidings. The structure supports Church Road East, a single carriageway 30mph road.

The partial reconstruction of Roberts Road Bridge involved the removal of the existing stone arch and spandrel wall and the detailed design of bespoke Conarch units.

The analysis was undertaken using a three dimensional structural analysis programme based on similar principles to a grillage analysis. Three models were developed to represent three construction phases; installation of units, pouring of the concrete capping slab and final working conditions.

The project also included the CAT III check for the temporary stability of the abutment and intermediate pier during demolition of the masonry arch span.

The outcome of the project obtained an efficient and cost-effective solution in accordance with standards and principles.