Strand Underpass Strand Underpass The Strand Underpass is a one-way vehicle tunnel in central London connecting Waterloo Bridge to Kingsway near Holborn. Opened in 1964, it was built within the former Kingsway tramway subway, which closed in the 1950s. The underpass is built within part of the former Kingsway tramway subway, which was wide and allowed bi-directional flow because of the fixed rails and relatively narrow width of the trams. The new underpass was built by John Mowlem & Co and opened on 21 January 1964. It is only wide, and consequently normally one-way northbound because of the side clearances required. The
London Bridge used are 150 to 200 millimetres (6 to 8 inches) thick. Some of the stones from the bridge were left behind at Merrivale Quarry at Princetown in Devon. When Merrivale Quarry was abandoned and flooded in 2003, some of the remaining stones were sold in an online auction. The current London Bridge was designed by architect Lord Holford and engineers Mott, Hay and Anderson. It was constructed by contractors John Mowlem and Co from 1967 to 1972, and opened by Queen Elizabeth II on 17 March 1973. It comprises three spans of prestressed-concrete box girders, a total of long. The