Queensbury Tunnel was built for the Great Northern Railway, to link Holmfield Station to Queensbury Station.
Work began on 21st May 1874. The tunnel was completed on 21st July 1878.
It was 2501 yards long. When it was built, it was the longest tunnel on the Great Northern Railway system, and one of the deepest in the country.
There were 5 ventilation shafts, of which the deepest was 379 ft.
Around 700 men were involved in the construction, and several were injured or killed ( ‡) as a result of accidents on the site:
The Tunnel fell into a parlous state.
It is due to be lost to landfill 
Page Ref: MMQ17
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