Tunnels underneath the River Thames constructed up to 1999 for the Millennium Dome; and a tunnel to the site of the old Ferranti power station on the east side of the mouth of Deptford Creek. There is also a tunnel between Cottons centre and the old Billingsgate Fish Market near to London Bridge. Citibank used it for cabling at one point; it was large enough for a person to walk through. The Silvertown Tunnel is a new Thames river crossing proposed to supplement the existing Blackwall Tunnel, which will join the Greenwich Peninsula with West Silvertown. There is also a further tunnel about two miles
M4 Thames Bridge M4 Thames Bridge The M4 Thames Bridge Maidenhead is a motorway bridge between Dorney Reach, Buckinghamshire and Bray near Maidenhead, Berkshire in England built in the 1960s. The bridge carries the M4 Motorway across the River Thames, on the reach above Boveney Lock, and about 500 yards short of Bray Lock. It is one of three bridges carrying motorway traffic across the Thames, the others being the M25 Runnymede Bridge (just below Bell Weir Lock) and the M3 Chertsey Bridge. There is also a pedestrian walkway on either side of the bridge, which allows people to access Bray Village from