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Arup, in collaboration with Seán Harrington Architects, has been named the winner of the Lower Thames Crossing’s national low-carbon footbridge competition, setting a new benchmark for sustainable design that could be applied to the new road and replicated across roads nationwide.

The design eliminates all concrete from the bridge and approach ramps while integrating planting to support biodiversity and reconnect fragmented habitats.

Located at the northern end of the Lower Thames Crossing, over the A127, the footbridge will re-establish a severed walking and cycling route between Moor Lane and Folkes Lane, restoring access to local green spaces, including Thames Chase Forest Centre, Folkes Lane Wood and the new 100-hectare Hole Farm Community Woodland. 

The bridge forms part of Lower Thames Crossing project’s vision for the UK’s greenest road scheme, one that will generate six times more green space than the road, includes one million trees, a community woodland, two new public parks and 40 miles of new and improved pathways for walkers, cyclists and horse riders.

Martin Hooton, Associate Director, Arup, said: “The contest reflects a shared commitment to advancing high-quality design and setting a new benchmark for sustainable development by prioritising low carbon, innovative ideas that enhance habitat connectivity.

“This initiative empowered Arup team to challenge conventional thinking and take a bold approach, delivering the lowest possible carbon footprint across every aspect of the design while exploring infrastructure solutions that are ready for the future.”

The Lower Thames Crossing scheme received planning permission in March 2025 and is currently working with the government on funding options. Construction could begin as early as 2026, with the new road expected to open in the early 2030s.