A £60 million project to refurbish and upgrade the kilometre-long Glasgow Queen Street tunnel was completed last week, nearly three days ahead of schedule.
Since the high-level station closed on Sunday 20 March, 3,000 engineers have been working around-the-clock for five months to renew 1,800 metres of concrete slab track and install more than 4,000 metres of new rails through the structure.
Station platforms and track layouts within Queen Street have also been extended and altered as part of the project, and both the tunnel and station have been prepared for the electrification of the main Glasgow-Edinburgh line next year.
Electrification will allow the introduction of faster, longer and greener trains on the line – delivering thousands of extra seats, shorter journey times and improved accessibility for customers.
Scottish Transport Minister Humza Yousaf helped tighten the final bolt on the new slab track inside the tunnel and met with customer service staff.
Mr Yousaf said: “I am pleased to see the work on the Queen Street tunnel completed ahead of schedule and on budget. This has been an unprecedented project, both in engineering terms and in the scale of the operation required to keep people moving and services diverted via the underground platforms during the works.
“This is a key milestone in our programme of investment for Scotland’s railways and literally paves the way for the introduction of a new generation of electric trains.
“I would like to congratulate the ScotRail-Network Rail Alliance on a successful job, and the hundreds of men and women who have worked day and night to deliver the hugely ambitious project.”