Pont Briwet was a £20 million project to replace a 120m long joint road and rail viaduct over the Dywryd estuary in Cardigan Bay. The original 150-year-old timber viaduct carried both the Cambrian Coast railway and link road between Harlech and Porthmadog. The scheme also included a new station at Llandecwyn. The project was led by Gwynedd Council, working in partnership with Network Rail. We compiled the Works Information for the Design & Build Contract, and acted for the client during construction. RBA provided site supervision and performed the CDM Co-ordinator role for the highway aspects of the project, which included the construction of 1.6km of new highway.
The project, which removed a toll bridge with a 3 tonne weight limit provided a significant improvement to the infrastructure of the Meirionydd Coastal Strip, providing direct and ready access between Harlech and Porthmadog and removing the need for HGVs to make an 8 mile long detour along narrow and twisting roads.