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Box Tunnel

Box, WiltshireEngvarB from September 2013Geographic coordinate listsGreat Western Main LineGreat Western Railway
Lists of coordinatesRail transport in WiltshireRailway tunnels in EnglandTunnels completed in 1841Tunnels in WiltshireWorks of Isambard Kingdom Brunel
BoxTunnelScape
BoxTunnelScape

Box Tunnel passes through Box Hill on the Great Western Main Line (GWML) between Bath and Chippenham. The 1.83-mile (2.95 km) tunnel was the world's longest railway tunnel when it was completed in 1841. Built between December 1838 and June 1841 for the Great Western Railway (GWR) under the direction of Isambard Kingdom Brunel, the straight tunnel descends on a 1 in 100 gradient from its eastern end. At the time the tunnel's construction was considered dangerous due to its length and the composition of the underlying strata. The west portal is Grade II* listed and the east portal is Grade II listed.Ammunition was stored near the tunnel during World War II, reusing mine workings. During the 2010s, the tunnel was modified and the track lowered to prepare it for electrification.

Excerpt from the Wikipedia article Box Tunnel (License: CC BY-SA 3.0, Authors, Images).

Box Tunnel
Bradford Road,

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Wikipedia: Box TunnelContinue reading on Wikipedia

Geographical coordinates (GPS)

Latitude Longitude
N 51.42128 ° E -2.22617 °
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Bradford Road

Bradford Road
SN13 8HY , Box
England, United Kingdom
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Corsham Computer Centre

The Corsham Computer Centre (CCC) is an underground British Ministry of Defence (MoD) installation in Corsham, Wiltshire, built in the 1980s. According to the MoD, the centre "processes data in support of the Royal Navy". The centre has been similarly described by Des Browne in 2007, then Secretary of State for Defence, as a "data processing facility in support of Royal Navy operations".In written evidence to the Defence Select Committee in 2007, the Scottish Campaign for Nuclear Disarmament suggested that the centre supports the software maintenance of the United Kingdom nuclear deterrent programme, Trident. A The Herald newspaper report in 2016 stated that the "UK Software Facility" (UKSF), responsible for the Trident targeting system which was upgraded in 2015, was believed to be located at the Corsham Computer Centre.The facility was built near Hudswell Quarry, and close to the Box Tunnel part of the broader complex of tunnels and quarries in the Corsham area and adjacent to the former Central Ammunition Depot built before the Second World War. It is located a few hundred metres north east of the current MoD Corsham.The site falls within a wider facilities management contract, the Bristol Bath Total Facilities Management project. It was awarded to Debut Services, a special purpose vehicle of Babcock Defence and Bovis Lend Lease, in September 2007 for a period of three years, with the option to extend the contract for a further three years.