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 Greater London Authority. The crossing also delineates an area along the southern bank of the River Thames, between London Bridge and Tower Bridge, that has been designated as a business improvement district. The abutments of modern London Bridge rest several metres above natural embankments of gravel, sand and clay. From the late Neolithic era the southern embankment formed a natural causeway above the surrounding swamp and marsh of the river's estuary; the northern ascended to higher ground at the present site of Cornhill. Between the embankments, the River Thames could have been crossed by ford when the tide was low,