11. The Standedge Tunnel is the longest, deepest and highest canal tunnel in Britain. 12. Standedge Canal Tunnel , Britain's longest, deepest and highest canal tunnel. 13. Standedge Canal Tunnel, Britain's longest, deepest and highest canal tunnel . 14. Additionally, a number of deep drains below these buildings probably link to the canal tunnel . 15. In April 1950, the Union Canal Tunnel was purchased by the Secretary of the Interior Bruce Babbitt. 16. The tunnel had cost some ?60, 000 and was the most expensive canal tunnel built in Britain. 17. It was a huge undertaking, with 74 locks and the longest canal tunnel in Britain at Standedge. 18. North Manheim was the location of the first canal tunnel in America, built for the Schuylkill Navigation Company. 19. The canal tunnel was extended at the Diggle end as part of the construction works of the 1894 tunnel. 20. The canal tunnel was used as a water supply for a hydroelectric plant and the inclined planes were abandoned.
