Snow Hill tunnel is a railway tunnel on the northern edge of the City of London which carries the up and down Snow Hill lines[1] between City Thameslink and Farringdon stations. The tunnel runs beneath the Smithfield meat market and was constructed, using the cut-and-cover method, immediately prior to the building of the market. The tunnel opened on 1 January 1866.
In 1871, an additional, eastwards tunnel was opened, which had connection to the Metropolitan Railway's tracks, enabling trains from the south to also serve Aldersgate (now Barbican) and Moorgate Street (now Moorgate) stations. The eastward curve also connected to an extensive Great Western Railway goods station beneath Smithfield market (now a car park). This Smithfield Curve (which had a very tight radius and could not be used by bogie stock) closed in 1916. The goods station, like those of the GNR, Midland Railway and the Metropolitan Railway, all located nearby, is no longer in use.
1914 map showing the area of Snow Hill tunnel.
A station, also named Snow Hill, was opened in the tunnel in 1874, providing an interchange with the LC&DR's adjacent terminus at Holborn Viaduct station. Snow Hill station closed in 1916, although the tunnel remained in use for goods traffic until the end of the 1960s.
The tracks were lifted in 1971 and the tunnel was abandoned for fifteen years until works began in 1986 to bring the north–south route back into operation as part of the Thameslink route. New tracks were laid in 1988 and services reopened in 1990. Initially, it was expected that a new station would be built at the site, but this was transferred to what is now City Thameslink (originally called St Paul's Thameslink).
The southern end of the tunnel was originally adjacent to Holborn Viaduct station, with trains running on a viaduct between there and Blackfriars. As part of the Thameslink works, the viaduct was demolished and replaced with a new section of cut-and-cover tunnel running most of the way to Blackfriars, incorporating City Thameslink station. To provide clearance for the new tunnel below, road levels at the western end of Ludgate Hill and in the adjacent junction of Ludgate Circus were raised several feet.
In 2008, a report by the Planning Inspectorate into a proposed development of the General Market Building, stated that the tunnel structure, known as "the lids", urgently required either repair or replacement.[citation needed] The tunnel lids are supported by girders which have deteriorated due to steam exhaust gases and, more recently, wet conditions resulting from failed waterproofing of the decks above.[citation needed] However, Network Rail maintained that the condition of the structure was not dissimilar to many others of the same age on the network, and is comfortable that it is safe as it currently stands.[citation needed]
^"Kent Sussex & Wessex Route Sectional Appendix; LOR LO280 Seq 001" (pdf). Network Rail. Retrieved 9 January 2017.
Wikimedia Commons has media related to Snow Hill Tunnel (London).
H.P.White, London Railway History (A regional history of the railways of Great Britain, Volume III - Greater London). David and Charles, 1963 and 1971. ISBN0-7153-5337-3.
Report to the Secretary of State for Communities and Local Government, dated 20 May 2008, ref APP/K5030/V/07/1201433-36
External links
Disused Stations - Snow Hill station – includes maps and images of the tunnel
Farringdon - Holborn Viaduct - Ludgate Circus – includes images of the tunnel taken between 1977 and 1990
January 04, 2023
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For the tunnel of the same name in Birmingham see Snow Hill tunnel Birmingham Coordinates 51 31 4 N 0 6 14 W 51 51778 N 0 10389 W 51 51778 0 10389 Snow Hill tunnel is a railway tunnel on the northern edge of the City of London which carries the up and down Snow Hill lines 1 between City Thameslink and Farringdon stations The tunnel runs beneath the Smithfield meat market and was constructed using the cut and cover method immediately prior to the building of the market The tunnel opened on 1 January 1866 The northern portal of the tunnel in 2012 seen from Farringdon station Snow Hill tunnel was constructed by the London Chatham and Dover Railway LC amp DR to connect its line from Herne Hill to the recently opened Metropolitan Railway s Widened Lines south of Farringdon station To the north west the Widened Lines in turn connected to the tracks of the Great Northern Railway at King s Cross and the Midland Railway at St Pancras via tunnels running beneath the two main line termini Snow Hill tunnel thus provided the crucial link in the only north south railway route through central London enabling a number of main line railway companies to run cross London passenger and goods services In 1871 an additional eastwards tunnel was opened which had connection to the Metropolitan Railway s tracks enabling trains from the south to also serve Aldersgate now Barbican and Moorgate Street now Moorgate stations The eastward curve also connected to an extensive Great Western Railway goods station beneath Smithfield market now a car park This Smithfield Curve which had a very tight radius and could not be used by bogie stock closed in 1916 The goods station like those of the GNR Midland Railway and the Metropolitan Railway all located nearby is no longer in use 1914 map showing the area of Snow Hill tunnel A station also named Snow Hill was opened in the tunnel in 1874 providing an interchange with the LC amp DR s adjacent terminus at Holborn Viaduct station Snow Hill station closed in 1916 although the tunnel remained in use for goods traffic until the end of the 1960s The tracks were lifted in 1971 and the tunnel was abandoned for fifteen years until works began in 1986 to bring the north south route back into operation as part of the Thameslink route New tracks were laid in 1988 and services reopened in 1990 Initially it was expected that a new station would be built at the site but this was transferred to what is now City Thameslink originally called St Paul s Thameslink The southern end of the tunnel was originally adjacent to Holborn Viaduct station with trains running on a viaduct between there and Blackfriars As part of the Thameslink works the viaduct was demolished and replaced with a new section of cut and cover tunnel running most of the way to Blackfriars incorporating City Thameslink station To provide clearance for the new tunnel below road levels at the western end of Ludgate Hill and in the adjacent junction of Ludgate Circus were raised several feet In 2008 a report by the Planning Inspectorate into a proposed development of the General Market Building stated that the tunnel structure known as the lids urgently required either repair or replacement citation needed The tunnel lids are supported by girders which have deteriorated due to steam exhaust gases and more recently wet conditions resulting from failed waterproofing of the decks above citation needed However Network Rail maintained that the condition of the structure was not dissimilar to many others of the same age on the network and is comfortable that it is safe as it currently stands citation needed Contents 1 Gallery 2 See also 3 References 4 External linksGallery Edit Southern end of Snow Hill tunnel in 1953 on the right tracks to Holborn Viaduct station Modern picture of Snow Hill TunnelSee also EditLudgate Hill railway station closed station on the viaduct a short distance north of Blackfriars station It was demolished with the viaduct North Western and Charing Cross Railway approved but unbuilt tunnel between Euston and Charing Cross stationsReferences Edit Kent Sussex amp Wessex Route Sectional Appendix LOR LO280 Seq 001 pdf Network Rail Retrieved 9 January 2017 Wikimedia Commons has media related to Snow Hill Tunnel London H P White London Railway History A regional history of the railways of Great Britain Volume III Greater London David and Charles 1963 and 1971 ISBN 0 7153 5337 3 Report to the Secretary of State for Communities and Local Government dated 20 May 2008 ref APP K5030 V 07 1201433 36External links EditDisused Stations Snow Hill station includes maps and images of the tunnel Farringdon Holborn Viaduct Ludgate Circus includes images of the tunnel taken between 1977 and 1990 Retrieved from https en wikipedia org w index php title Snow Hill tunnel London amp oldid 1093403205, wikipedia, wiki, book, books, library,
