The three crossings, according to reports, would serve as part of the Mayor's plan to regenerate the Docklands area. One would be a bridge connecting the Dome peninsula with the Silvertown Docks area. Woolwich Crossing further east would have a tunnel for either an extension of the Docklands Light Railway or a rail link. Further east again would be the Thames Gateway Bridge, connecting main roads between Thamesmead and Beckton.