In August 2014 the main Tunnel near Barclays Bank was repaired by the Swedish Construction Company SKANSKA. The road was dug up to expose the Tunnel for the first time in 160 years. The problem they had to deal with was the re-routing of a 3 phase electrical cable that had been chopped into the roof of the Tunnel. This was done, date unknown, by cutting out bricks across the roof of the Tunnel, thereby weakening the structure. A roof section, about 15ft long, was taken out completely and they drilled holes through the tunnel walls to accommodate the new route of the cable inside the tunnel. Shown in the slideshow below.