An alternative design of two viaducts built using the glued segmental balanced cantilever system. Individual viaduct lengths of 340.2m and 384.08m are made up of spans typically of 60 and 63m.
The viaducts form part of the road improvements for the A20 Folkestone to Dover route.
A complete redesign of the supporting columns and foundation was also undertaken taking into consideration the Channel Tunnel which crosses the site within 1m of finished ground level.
