The building of Crossrail – in pictures

Crossrail tunnel Photograph: Courtesy of Crossrail

Elizabeth breaks through into Stepney Green cavern, November 2013 Photograph: Courtesy of Crossrail

Spray concrete lining works in Finsbury Circus tunnels at Crossrail's Liverpool Street site Photograph: Courtesy of Crossrail

Elizabeth breaks through into Stepney Green cavern, November 2013 Photograph: Courtesy of Crossrail

Hanover Square, February 2013 Photograph: Courtesy of Crossrail

Elizabeth lowered into main shaft, 25 October 2012 Photograph: Courtesy of Crossrail

Inside one of the tunnels Photograph: Courtesy of Crossrail

Hanover Square, August 2013 Photograph: Courtesy of Crossrail

Hanover Square, August 2013 Photograph: Courtesy of Crossrail

Tunnel mock-up Photograph: Courtesy of Crossrail