Dudley Tunnel
Encyclopedia
Dudley Tunnel is a canal
Canal
Canals are man-made channels for water. There are two types of canal:#Waterways: navigable transportation canals used for carrying ships and boats shipping goods and conveying people, further subdivided into two kinds:...

 tunnel
Tunnel
A tunnel is an underground passageway, completely enclosed except for openings for egress, commonly at each end.A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. Some tunnels are aqueducts to supply water for consumption or for hydroelectric stations or are sewers...

 on the Dudley Canal Line No 1
Dudley Canal
The Dudley Canal is a canal passing though Dudley in the West Midlands of England. The canal is part of the English and Welsh connected network of navigable inland waterways, and in particular forms part of the popular Stourport Ring narrowboat cruising route....

, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. At about 3172 yards (2,900.5 m) long, it is now the second longest canal tunnel on the UK canal network
Canals of the United Kingdom
The canals of the United Kingdom are a major part of the network of inland waterways in the United Kingdom. They have a colourful history, from use for irrigation and transport, through becoming the focus of the Industrial Revolution, to today's role for recreational boating...

 today. (Standedge Tunnel
Standedge Tunnels
The Standedge Tunnels are four parallel tunnels that run beneath the Pennines at the traditional Standedge crossing point between Marsden and Diggle, on the edges of the conurbations of West Yorkshire and Greater Manchester respectively, in northern England.There are three railway tunnels and a...

 is the longest, at 5456 yards (4,989 m), and the 3931 yards (3,594.5 m) Higham and Strood tunnel is now rail only). However, since the Dudley Tunnel is not continuous this status is sometimes questioned: (the main tunnel is 2942 yards (2,690.2 m), Lord Ward's tunnel is 196 yards (179.2 m) and Castle Mill basin is 34 yards (31.1 m)).

In 1959 the British Transport Commission
British Transport Commission
The British Transport Commission was created by Clement Attlee's post-war Labour government as a part of its nationalisation programme, to oversee railways, canals and road freight transport in Great Britain...

 sought to close the tunnel but this led to an Inland Waterways Association
Inland Waterways Association
The Inland Waterways Association was formed in 1946 as a registered charity in the United Kingdom to campaign for the conservation, use, maintenance, restoration and sensitive development of British Canals and river navigations....

-organised massed protest cruise in 1960. The tunnel was however closed in 1962; and was further threatened with permanent closure by British Railways who wished to replace a railway viaduct at the Tipton
Tipton
Tipton is a town in the Sandwell borough of the West Midlands, England, with a population of around 47,000. Tipton is located about halfway between Birmingham and Wolverhampton. It is a part of the West Midlands conurbation and is a part of the Black Country....

 portal with an embankment and a culvert
Culvert
A culvert is a device used to channel water. It may be used to allow water to pass underneath a road, railway, or embankment. Culverts can be made of many different materials; steel, polyvinyl chloride and concrete are the most common...

. However, this never happened as the railway was closed in 1968 and the disused bridge demolished in the 1990s.

The tunnel was reopened in 1973, as a result of restoration, which had been a collaboration between local volunteers (originally the Dudley Canal Tunnel Preservation Society, later the Dudley Canal Trust), and the local authority, Dudley Borough Council. The opening ceremony was advertised as "TRAD 1973 - Tunnel Reopening at Dudley".

Construction of the tunnel(s)

A private Act of Parliament
Act of Parliament
An Act of Parliament is a statute enacted as primary legislation by a national or sub-national parliament. In the Republic of Ireland the term Act of the Oireachtas is used, and in the United States the term Act of Congress is used.In Commonwealth countries, the term is used both in a narrow...

 to construct the tunnel and associated canal, later to be known as the Dudley Canal Line No. 1, was passed in 1776. However Lord Dudley and Ward
Baron Dudley
Baron Dudley is a title in the Peerage of England. It was created in circa 1440 for John Sutton, a soldier who served as Lord Lieutenant of Ireland. According to Debrett's Peerage and Baronetage he was actually summoned to Parliament as "Johanni de Sutton de Duddeley militi", whereby he is held to...

 started building a canal and tunnel, in 1775, to link his Tipton Colliery and his lime works to the Birmingham Canal Navigations
Birmingham Canal Navigations
Birmingham Canal Navigations is a network of navigable canals connecting Birmingham, Wolverhampton, and the eastern part of the Black Country...

, at Tipton
Tipton
Tipton is a town in the Sandwell borough of the West Midlands, England, with a population of around 47,000. Tipton is located about halfway between Birmingham and Wolverhampton. It is a part of the West Midlands conurbation and is a part of the Black Country....

, on the 473 ft Wolverhampton Level. He later agreed to sell the canal and tunnel to the Dudley Canal Company. The Dudley Canal Line No. 1 and Dudley Tunnel were reported as finished on 25 June 1791.

The earliest part of tunnel system was built to help with the transport of limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

 extracted from the mines
Mining
Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock...

 inside Castle Hill
Dudley Castle
Dudley Castle is a ruined castle in the town of Dudley, West Midlands, England. Dudley Zoo is located in its grounds. The location, Castle Hill, is an outcrop of Wenlock Group limestone that was extensively quarried during the Industrial Revolution, and which now along with Wren's Nest Hill is a...

 through which the tunnel runs. This was Lord Ward's tunnel, which leads to Castle Mill Basin. From there the main tunnel runs, via the Cathedral Arch, to Parkhead, near Netherton
Netherton, West Midlands
Netherton is a town in the West Midlands within the Metropolitan Borough of Dudley. It lies around south of the town of Dudley and north of Cradley Heath...

. At Cathedral Arch a branch canal lead into the Little Tess Cavern mine workings. This route is now blocked, but has been by-passed by two new tunnels (see below). The southern end, including the southern portal, of the tunnel had to be rebuilt in 1884 due to subsidence caused by adjacent coal
Coal
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure...

 mines. This section of the tunnel was built several feet wider than the original tunnel bore. The southern portal bears a brick date stone of 1884.

Another 1227 yards (1,122 m) canal tunnel at Castle Mill Basin, now blocked off by a dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...

, leads under Wren's Nest
Wren's Nest
The Wren's Nest is a National Nature Reserve located to the north west of the town centre of Dudley, West Midlands, England. Today, apart from the geological interest, the site is home to a number of species of birds and locally rare flora; the caverns also support large roosting populations of bats...

 to two under ground basins, east basin and west basin, and was used to transport limestone from the underground mine workings. Surface quarries were also opened; they outlasted the underground workings and were last used in the early 1920s. The land above the underground workings, together with the surface quarries, became a National Nature Reserve
National Nature Reserve
For details of National nature reserves in the United Kingdom see:*National Nature Reserves in England*National Nature Reserves in Northern Ireland*National Nature Reserves in Scotland*National Nature Reserves in Wales...

.

Closure and re-opening

By 1959, the tunnel was virtually disused, and British Waterways
British Waterways
British Waterways is a statutory corporation wholly owned by the government of the United Kingdom, serving as the navigation authority in England, Scotland and Wales for the vast majority of the canals as well as a number of rivers and docks...

 announces plans to officially close it. A number of protest groups organised cruises through the tunnel during 1960 in hope of it being kept open, but in 1962 the tunnel was finally closed. Its very existence was threatened the following year when the railway viaduct above it was found to be structurally unsafe; this was largely a goods line since the closure of passenger stations along it the previous year, but the railway authorities planned to preserve the railway line and wanted to replace the viaduct with an embankment. The plans involved sealing the tunnel off.

However, the railway closed completely in 1968 and so the tunnel was saved. Following several years of preparation work, the tunnel was officially re-opened in 1973.

Dudley Tunnel today

In 1989 two completely new canal tunnels were made, linking Singer Cavern and the Rock Tunnel, via Little Tess Cavern, to Castle Mill Basin (the northern portal of the main tunnel).

The restrictive dimensions of the tunnel and the absence of a towpath
Towpath
A towpath is a road or trail on the bank of a river, canal, or other inland waterway. The purpose of a towpath is to allow a land vehicle, beasts of burden, or a team of human pullers to tow a boat, often a barge...

 mean that many boats are unable to pass through it. Those that can are not allowed to use diesel engine
Diesel engine
A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

s due to the lack of ventilation in the tunnel.

Visitors to the adjacent Black Country Living Museum
Black Country Living Museum
The Black Country Living Museum is an open-air museum of rebuilt historic buildings, located in Dudley in the West Midlands of England. The museum occupies a urban heritage park in the shadow of Dudley Castle in the centre of the Black Country conurbation...

, which opened in 1978, may take a battery
Lead-acid battery
Lead–acid batteries, invented in 1859 by French physicist Gaston Planté, are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, their ability to supply high surge currents means that the cells maintain a relatively large...

-powered narrowboat
Narrowboat
A narrowboat or narrow boat is a boat of a distinctive design, made to fit the narrow canals of Great Britain.In the context of British Inland Waterways, "narrow boat" refers to the original working boats built in the 18th, 19th, and 20th centuries for carrying goods on the narrow canals...

 trip either through the tunnel or partway through the tunnel and the adjacent mines; and, also, try legging
Legging (canals)
Legging is a method of moving a boat through a canal tunnel or adit containing water.-Legging in canal tunnels:Early canal tunnels were built without a towpath as this would require a much larger bore, and hence cost more to build. Prior to the introduction of motorised boats, legging was one of...

 the boat.

The rock on Castle Hill into which the tunnel is dug, Oolitic
Oolite
Oolite is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. The name derives from the Hellenic word òoion for egg. Strictly, oolites consist of ooids of diameter 0.25–2 mm; rocks composed of ooids larger than 2 mm are called pisolites...

 limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

, allows visitors to see Trilobite
Trilobite
Trilobites are a well-known fossil group of extinct marine arthropods that form the class Trilobita. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period , and they flourished throughout the lower Paleozoic era before...

 fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

s preserved within it. Some fossils which were considered notable and were located close to the water line, have been removed to prevent them from being eroded and attacked by visitors. Other parts of the tunnel pass through a granite
Granite
Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...

-type rock known locally as Rowley
Rowley Regis
Rowley Regis is a town in the Sandwell metropolitan borough of the West Midlands county and a part of the Black Country in the United Kingdom. Being part of the Black Country, locals speak with the traditional dialect, though in a form regarded by many as the quickest and the hardest to...

 Rag; and through coal measures.

The Netherton Tunnel
Netherton Tunnel Branch Canal
Netherton Tunnel Branch Canal, in the English West Midlands, is part of the Birmingham Canal Navigations, . It was constructed at a 453–foot elevation, the Wednesbury or Birmingham level; it has no locks. The total length of the branch canal is and the canal tunnel is long.Netherton Tunnel was...

 follows a parallel route 1½ miles to the south east; it is much larger and has twin towpaths running through it. It was built to ease congestion in the Dudley Tunnel.

Coordinates

(With links to map and aerial photo sources)
Point Coordinates OS Grid ref.
Ordnance Survey
Ordnance Survey , an executive agency and non-ministerial government department of the Government of the United Kingdom, is the national mapping agency for Great Britain, producing maps of Great Britain , and one of the world's largest producers of maps.The name reflects its creation together with...

Northern portal 52.52173°N 2.07840°W
Southern portal 52.50110°N 2.10086°W

See also

  • Lapal Tunnel
    Lapal Tunnel
    The Lapal Tunnel is a disused canal tunnel on the five mile dry section of the Dudley No. 2 Canal in the West Midlands, England....

  • Legging (canals)
    Legging (canals)
    Legging is a method of moving a boat through a canal tunnel or adit containing water.-Legging in canal tunnels:Early canal tunnels were built without a towpath as this would require a much larger bore, and hence cost more to build. Prior to the introduction of motorised boats, legging was one of...

  • List of canal tunnels in Great Britain
  • Parkhead Viaduct
    Parkhead Viaduct
    Parkhead Viaduct is a railway viaduct located in Dudley, West Midlands, England. The original viaduct was a wooden structure erected in 1850 to carry the new Stourbridge to Walsall railway over Parkhead Locks on the Dudley Canal, near to the southern mouth of the Dudley Tunnel...

  • Wren's Nest
    Wren's Nest
    The Wren's Nest is a National Nature Reserve located to the north west of the town centre of Dudley, West Midlands, England. Today, apart from the geological interest, the site is home to a number of species of birds and locally rare flora; the caverns also support large roosting populations of bats...

    quarry

Further reading

  • (N/A) (1973). Dudley Tunnel TRAD 1973: Dudley Canal Tunnel: A Guide Commemorating the Restoration of the Tunnel and the Official Reopening by Sir Frank Price, Chairman, British Waterways Board, and Alderman E. Morris, J.P., Mayor of Dudley. Dudley: Dudley Canal Trust.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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