Power Line Tunnels (London)

 olympic venue, tunnel, power transmission line

Two six kilometre tunnels have been dug beneath the Olympic Park, enabling the power needed for the Games and the legacy communities after 2012 to be carried underground and the overhead powerlines which run across 52 pylons in the Park to be removed. The tunnels were finished 2007 on time and on budget, marking the first Olympic Park construction project to be completed.
More than 200km of electrical cables will be installed in the tunnels – enough to stretch from London to Nottingham. Cable installation work in the first tunnel has now been completed and cabling works are also now well underway in the second tunnel. Around 150km of cabling has now been laid in total bringing the project up to the three-quarter mark stage.