Talk:Kilsby Tunnel

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Please fix...

... this awkward sentence:

“During the tunnel's service life, there have been no major problems or difficulties with the structure have reportedly been experienced.“ — Preceding unsigned comment added by 2001:44B8:3102:BB00:D97:DED6:BB5A:7DB2 (talk) 09:51, 5 July 2020 (UTC)[reply]

Fixed. G-13114 (talk) 11:09, 5 July 2020 (UTC)[reply]

Removed claim of single track until 1879

The article contained a statement that the tunnel was single-tracked from opening in 1838 until 1879, based solely upon this source that is no longer accessible at its original address. The claim is an impressive one to make - the L&B was engineered as an intercity passenger route, with contemporary practice being to build double track for such routes, and it is incredible to say that one of the major railway routes in the country remained single tracked for 40 years, and until after the Northampton Loop Line was built to increase capacity to a quadruple track main line.

Contemporary pictures - of which plenty are in the article! - also don't support the claim. Views during construction, of the tunnel in use in 1839 (a, b), and 1852 all show two tracks. The only contrary evidence is John Cooke Bourne's view of the Working Shaft, Kilsby Tunnel, dated 8 July 1837 with only a single line of rails, but given that this is a year before completion and appears to show the tunnel whilst extensive excavation is still ongoing, it's not unreasonable to assume this shows only one of the two mains, or a temporary construction railway (as existed at the top of the shafts).

There is a possibility that the tunnel did briefly open as single track before being doubled, and if there is a reliable source showing that, then it should be added back in. Danny252 (talk) 22:12, 13 December 2024 (UTC)[reply]

Speaking with the LNWR society, they believe the source may have confused Kilsby and Camden tunnels. The first (double track) Camden Tunnel opened 1838, and the second tunnel (for quadrupling) opened in 1879. Danny252 (talk) 09:54, 14 December 2024 (UTC)[reply]

I always thought that was a strange claim to make, which was contradicted by the pictorial evidence. It wouldn't surprise me if it was a mixup. G-13114 (talk) 15:56, 14 December 2024 (UTC)[reply]