Tunnel route


  • The total length of the two tunnels will be approximately 30km.
  • The depth of the tunnels range between 10m and 63m. Most of the tunnels will be approximately 30m deep.
  • The tunnel and shafts are below ground and should not require planning approval as we can carry out the work to build these under our permitted development rights.


Section 1: Wimbledon to New Cross

Length: 12km

Planned construction: September 2019 – September 2025

Operational by: 2025


Section 2: New Cross to Hurst

Length: 18km

Planned construction: September 2019 – December 2027

Operational by: 2027


We are also looking at building a tunnel between Hurst and Crayford. This part of the project is in early development and we will be holding a public information event in June to share further details.