[4] In a refitting phase the escalators and lift shafts were due to be upgraded by October 2010 to early 2011 at a cost of £500,000.

[2] A £6,000,000 refurbishment was due to take place in 2011, but multiple delays pushed the reopening date to summer 2019.

[5][1] In 2012, contractor GB Building Solutions of Balliol Business Park, Newcastle, was appointed to carry out the £4.9 million refurbishment which included the replacement of two of the original four escalators with inclined lifts and the replacement of the tunnels' ageing mechanical and electrical systems.

[6] The two remaining escalators, which are original and of historical significance, will be opened up to public view and illuminated with feature lighting.

On November 25th 2024, both of the inclined lifts has been completed, and the remaining wooden escalators at each end of the tunnel are blocked off for use in emergencies only.