The Tar Tunnel is an abandoned tunnel located on the north bank of the

River Severn , name_etymology = , image = SevernFromCastleCB.JPG , image_size = 288 , image_caption = The river seen from Shrewsbury Castle , map = RiverSevernMap.jpg , map_size = 288 , map_c ...

in the Ironbridge Gorge at

Coalport Coalport is a village in Shropshire, England. It is located on the River Severn in the Ironbridge Gorge, a mile downstream of Ironbridge. It lies predominantly on the north bank of the river; on the other side is Jackfield. The settlement wa ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. It is one of ten Ironbridge Gorge Museums attractions administered by the

Ironbridge Gorge Museum Trust The Ironbridge Gorge Museum Trust is an industrial heritage organisation which runs ten museums and manages multiple historic sites within the Ironbridge Gorge World Heritage Site in Shropshire, England, widely considered as the birthplace of ...

. Miners struck a gushing

spring Spring(s) may refer to: Common uses * Spring (season) Spring, also known as springtime, is one of the four temperate seasons, succeeding winter and preceding summer. There are various technical definitions of spring, but local usage of ...

of natural bitumen, a black

treacle Treacle () is any uncrystallised syrup made during the refining of sugar.Oxford Dictionary The most common forms of treacle are golden syrup, a pale variety, and a darker variety known as black treacle, similar to molasses. Black treacle has ...

-like substance, when digging a

canal tunnel {{Refimprove, date=September 2009 A canal tunnel is a tunnel for a canal. The building of a canal tunnel is crucial to help a waterway that is normally used for shipping cross a difficult section of terrain. They are also constructed to reduce th ...

for the Coalport Canal in 1787, or else digging a level in search of coal. The plan, proposed by William Reynolds, was to connect the canal alongside the

River Severn , name_etymology = , image = SevernFromCastleCB.JPG , image_size = 288 , image_caption = The river seen from Shrewsbury Castle , map = RiverSevernMap.jpg , map_size = 288 , map_c ...

to the lower galleries of the mines below the Blists Hill area. After digging around into the hill the canal project was abandoned in favour of bitumen extraction. Tar Tunnel - geograph

The tunnel was a great curiosity in the eighteenth century and bitumen still oozes gently from the brick walls today. Bitumen's chief commercial use at the time was to treat and weatherproof

rope A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similar ...

s and caulk wooden

ship A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished ...

s, but small amounts were processed and bottled as 'Betton's British Oil', a

panacea In Greek mythology, Panacea (Greek ''Πανάκεια'', Panakeia), a goddess of universal remedy, was the daughter of Asclepius and Epione. Panacea and her four sisters each performed a facet of Apollo's art: * Panacea (the goddess of univers ...

remedy for rheumatism and

scurvy Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). Early symptoms of deficiency include weakness, feeling tired and sore arms and legs. Without treatment, decreased red blood cells, gum disease, changes to hair, and bleeding ...

. After the canal project was abandoned the

Hay Inclined Plane The Hay Inclined Plane is a canal inclined plane in the Ironbridge Gorge in Shropshire, with a height of . It was located at the end of the Shropshire Canal, part of a network of canals that linked the industrial region of east Shropshire wit ...

was built instead, its base being alongside the canal basin. In the past visitors were provided with hard hats and were able to enter the first of the brick-lined tunnel as far as an iron gate. Electric lighting is provided. Due to a build up of gas in the tunnel, it is unsafe to enter but visitors can still get a view along part of its length from the entrance.Museum website
accessed 26 July 2017.

References

- Coalport Tar Tunnel

External links

Tar Tunnel at Ironbridge Gorge Museums

1787 establishments in England Museums in Shropshire Industry museums in England Archaeological museums in England Industrial archaeological sites in Shropshire Tourist attractions in Shropshire History of Shropshire Tunnels in Shropshire Ironbridge Gorge Underground mines in England Ironbridge Gorge Museum Trust Tunnels completed in 1787 Disused tunnels {{Shropshire-geo-stub