Arch was tasked with an urgent response to the Groat 25 bridge site, where severe flooding had significantly eroded the embankment and retaining walls near the abutments. The flooding washed out the approach under the bridge, exposing critical structural elements, including piles and timber retaining systems, originally installed to support the bridge approach. MoTI required a rapid and effective solution to prevent further damage and ensure the long-term stability of the bridge.
Our team quickly designed and implemented a robust retaining wall system that served a dual purpose: providing soil retention and offering flood protection against future deluges and high-water events. The system comprised sheet piles anchored by steel cable tie-back systems, engineered to withstand both the hydraulic forces of floodwaters and the potential impact of debris carried by the current.
Advanced modeling techniques were employed to simulate worst-case scenarios, ensuring that the protection system could resist erosion and prevent subsequent failure, even under extreme conditions. The retaining wall system not only addressed the immediate crisis but also provided a durable solution for the bridge’s continued safety and functionality.
This project underscored Arch Engineers Ltd.’s ability to deliver rapid, high-quality engineering solutions under pressure, reinforcing our reputation for reliability and technical excellence in infrastructure resilience.