A3057 Romsey Road Bridge Replacement: Solution for Efficient and Cost-Effective Construction
The A3057 Romsey Road Bridge, which spans the M27, was originally constructed in the 1970s. Over time, the bridge developed cracks at the ends of its prestressed concrete beams, and the failure of its bearings prevented it from functioning as designed. As a result, the bridge required replacement to ensure the continued safety and efficiency of traffic flow.
In an effort to minimise disruption and costs, the decision was made to retain the existing bridge abutment bases and design the new structure around these foundations. Geoquest was tasked with providing a solution that would work around these existing bases and avoid the need for extensive demolition.
Geoquest applied a combination of techniques to create a flexible, efficient design. By using discrete soil reinforcing strips, the team was able to adapt the design to accommodate any obstructions within the backfill. This approach not only saved time but also significantly reduced costs associated with demolition and waste disposal, as less concrete needed to be removed from the site.
This innovative approach allowed the bridge replacement project to be completed more quickly and at a lower cost, all while maintaining the structural integrity required for the new bridge.
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