Lochnagar Pedestrian and Cycle Bridge in London a Crossing and Public Space Rooted in History

The River Lea, a tributary of the Thames in west London, has historically been a critical infrastructure and trade corridor, but now poses an east-west barrier, with no river crossings in an almost 2km stretch. The new Lochnagar Bridge addresses this issue by providing a crucial active mobility connection in a rapidly transforming part of London, offering significant social and economic benefits. The 63 m-span bridge, an asymmetric steel bowstring arch, features a bench that is integrated into the deck structure, delivering not only a crossing but also a place to stay and enjoy the Cody Wilds nature reserve and the meandering course of the river. The bridge's western end can be raised using hydraulic jacks to allow exceptionally large vessels to pass. This allows for a lower crossing than a higher fixed bridge, making it more accessible to everyone and providing a higher-quality public space adjacent to the bridge. The design reflects the area's industrial past, featuring gentle curves reminiscent of a ship's hull as a reference to the historic strong shipbuilding industry in the area. A distinctive orange hue and patterned artwork on the steel surfacing also reference the region's calico printworks and textile heritage. The article explains the rationale behind this unique crossing solution and how various design challenges were addressed.