Client: SEGRO Project overview The SEGRO Logistics Park Northampton is a 450-acre state-of-the-art logistics hub, strategically located near Junction 15 of the M1. It includes 5 million square feet of modern warehousing and a 35-acre Strategic Rail Freight Interchange (SRFI), designed to improve the sustainable movement of freight by rail. The development, led by Winvic Construction, is expected to create around 7,500 jobs once fully operational. Extensive infrastructure works have been delivered, including upgrades to the A45, A508, and Roade Bypass, along with improvements to M1 Junction 15, enhancing local traffic flow and access to the park. Over 80 acres of parkland, 60,000 newly planted trees, and 18 km of footpaths will further enhance its environmental credentials. The SRFI will connect the site to the West Coast Mainline, promoting the use of rail for logistics and reducing the reliance on road transport, making this development a key driver of economic and sustainable growth in the region. Services we provided Civil & Infrastructure Engineering Environmental & Sustainability Consulting Geotechnical & Ground Engineering Ground Investigation & Land Quality Structural Engineering Transport Planning & Traffic Engineering Water Engineering & Flood Risk Show More Our Role BWB was appointed as the lead design consultant, responsible for delivering a wide range of services including drainage, highway design, and earthworks modelling. Our highways team developed detailed designs for complex upgrades at M1 junctions 15 and 15a, working under an expedited nine-month timeframe to accommodate increased logistics traffic. We designed a new bridge over the West Coast Mainline and a bypass around Roade village to alleviate local congestion and improve safety. Drainage expertise The drainage team developed a comprehensive water management strategy that ensured surface water runoff was effectively managed and flood risks were mitigated. The system was designed to work seamlessly with the upgraded highway infrastructure, ensuring long-term site resilience and environmental compliance. Enabling infrastructure Our role also involved leading the coordination of the enabling infrastructure for the logistics park, working closely with Winvic Construction and other stakeholders to deliver the project on schedule. Our designs were integrated to facilitate the subsequent construction of approximately 5 million square feet of rail-served high bay warehousing, supporting the region’s booming logistics and distribution market. Accelerated timeline The accelerated project timeline required effective collaboration with local councils, National Highways, and other stakeholders to secure necessary design approvals within a constrained timeframe. The design and construction of the new bridge over the West Coast Mainline required careful planning to minimise disruptions to rail operations while maintaining safety.