London Power Tunnels

(asked on 18th May 2016) - View Source
Questioner
Portrait
Paul Monaghan
(Scottish National Party - Caithness, Sutherland and Easter Ross)

Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Energy and Climate Change, what the total length is of tunnels for each specific diameter being constructed by the London Power Tunnels Project; and what length of each such type of tunnel has been constructed to date.

Answered by
Andrea Leadsom Portrait
Andrea Leadsom
This question was answered on 26th May 2016

National Grid has said that:

The total length of the tunnels is 32km and tunnelling was completed in March 2015.

19.6km of the network was constructed using a 3m internal diameter tunnel boring

machine

  • Willesden to St John’s Wood 3m diameter tunnel – 7.4km

  • Wimbledon to Kensal Green 3m diameter tunnel – 12.2km.

    12.4km of the network was built using a 4m internal diameter tunnel boring machine

    - St John’s Wood to Hackney 4m diameter tunnel.

Reticulating Splines