The National Highways scheme will increase capacity, reduce congestion at the junction and provide a better connection between the M25 and A12. Duckwood Bridge is one of four structures for the scheme, with beams already having been lifted into place on Maylands Bridge, Grove Bridge, and Alderwood Bridge. This is the largest beam lift for the project, requiring the biggest capacity crane, as Duckwood Bridge measures at 56 meters in length and 16 meters in width.