Standedge Tunnel Diggle
There are three railway tunnels, running parallel to each other and the canal tunnel. The rail tunnels are level for their whole length providing the only section of level track on the line where water troughs could be installed to provide steam locomotives with fresh water supplies without the requirement for the train to stop.
The 1848 (central) tunnel
The central tunnel at Standedge was completed by the London and North Western Railway, having acquired the former Huddersfield and Manchester Railway in 1847. This was a single line tunnel with a length of 3 miles, 57 yards (4803 m). The tunnel is located immediately to the south of, but at a slightly higher level than, the canal tunnel.
The 1871 (south) tunnel
The 1848 tunnel soon proved to be a bottleneck for rail traffic between Huddersfield and Manchester, and in 1871 a second parallel tunnel was opened. This tunnel was also a single line tunnel with a length of 3 miles, 57 yards (4803 m), and was situated to the south of the first rail tunnel.
Diggle portal of the 1894 tunnel[edit] The 1894 (live) tunnel
The 1894 double bore tunnel was opened by the London and North Western Railway with double track, and a length of 3 miles, 60 yards
(4806 m). For most of its length, it is situated to the north of the canal tunnel, but passes over the canal tunnel just inside each tunnel entrance. This tunnel is the fifth longest rail tunnel in Britain after the new High Speed 1 tunnels, Severn Tunnel and the Sheffield to Manchester route's Totley Tunnel.
The rail tunnels today
Today only the 1894 rail tunnel is still used for rail traffic, although all three rail tunnels are still maintained. The 1848 tunnel is used to provide an emergency escape route for the other tunnels, and has been made accessible to road vehicles such as fire engines and ambulances.
Future proposals
Network Rail have proposed the reinstatement of rail traffic through the 1871 and 1848 tunnels to increase capacity on the trans-pennine route.
Peter Pan
Exiting the vortex
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