The Kingsway tunnel was built in 1906 and once carried trams between Aldwych and Holborn. It had been used by the London Borough of Camden for storage since its closure in 1952 but it has now been reopened by Barhale, sixty years later, to enable an essential grout shaft to be constructed.
This was an extremely interesting and challenging site location due to space constraints, media interest and the fact that the tunnel was a protected heritage structure.