The Rainham Trackway provides significant improvements to a strategically important pedestrian and cycle route, linking Rainham village to the Thames. It forms a new threshold landmark appropriate to the scale and significance of the landscapes of Rainham marsh. The Trackway provides a new straight‑line walk down to marsh level from the existing bridge across the Eurostar line. The first one hundred and twenty metres of the route is elevated from the ground on a series of raking columns.
The remaining one hundred metres is founded on an earth embankment. Columns are engineered from timber; larch, sourced from eastern Germany. The columns support a composite deck made from steel and pre‑cast concrete with an in‑situ concrete structural topping. Structural engineering design is by Jane Wernick Associates. The main contractor is Volker Fitzpatrick, with steelwork by SH Structures and timber engineering by Peter Bertsche.