Tunnels in the United Kingdom is a link page for any road

Road

A road is a thoroughfare, route, or way on land between two places, which typically has been paved or otherwise improved to allow travel by some conveyance, including a horse, cart, or motor vehicle. Roads consist of one, or sometimes two, roadways each with one or more lanes and also any...

, railway, waterway

Waterway

A waterway is any navigable body of water. Waterways can include rivers, lakes, seas, oceans, and canals. In order for a waterway to be navigable, it must meet several criteria:...

 or other form of 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...

, anywhere in the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

.

A tunnel is an underground passageway with no defined minimum length, though it may be considered to be at least twice as long as wide. Some civic planners define a tunnel as 0.1 miles (160 metres) in length or longer.

A tunnel may be for pedestrian

Pedestrian

A pedestrian is a person traveling on foot, whether walking or running. In some communities, those traveling using roller skates or skateboards are also considered to be pedestrians. In modern times, the term mostly refers to someone walking on a road or footpath, but this was not the case...

s or cyclists, for general road traffic

Traffic

Traffic on roads may consist of pedestrians, ridden or herded animals, vehicles, streetcars and other conveyances, either singly or together, while using the public way for purposes of travel...

, for motor vehicle

Motor vehicle

A motor vehicle or road vehicle is a self-propelled wheeled vehicle that does not operate on rails, such as trains or trolleys. The vehicle propulsion is provided by an engine or motor, usually by an internal combustion engine, or an electric motor, or some combination of the two, such as hybrid...

s only, for rail

Rail transport

Rail transport is a means of conveyance of passengers and goods by way of wheeled vehicles running on rail tracks. In contrast to road transport, where vehicles merely run on a prepared surface, rail vehicles are also directionally guided by the tracks they run on...

 traffic, or for 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:...

. Some are aqueduct

Aqueduct

An aqueduct is a water supply or navigable channel constructed to convey water. In modern engineering, the term is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose....

s, constructed purely for carrying water

Water supply

Water supply is the provision of water by public utilities, commercial organisations, community endeavours or by individuals, usually via a system of pumps and pipes...

—for consumption, for hydroelectric purposes or as sewers

Sanitary sewer

A sanitary sewer is a separate underground carriage system specifically for transporting sewage from houses and commercial buildings to treatment or disposal. Sanitary sewers serving industrial areas also carry industrial wastewater...

—while others carry other services such as telecommunications cables. There are even tunnels designed as wildlife crossing

Wildlife crossing

Wildlife crossings are structures that allow animals to cross human-made barriers safely. Wildlife crossings may include: underpass tunnels, viaducts, and overpasses ; amphibian tunnels; fish ladders; tunnels and culverts ; green roofs .Wildlife crossings are a...

s for European badgers and other endangered species

Endangered species

An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

.

The 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...

 at 5,029 metres (3.25 miles) is the longest canal tunnel in the United Kingdom.

England

County	Tunnel	Type	Length (Metres)	Length (Imperial)	Construction method / Notes	Date of opening	Coordinates
Bedfordshire	Ampthill Tunnel Ampthill Tunnel Ampthill tunnel is a railway tunnel on the London Midland region between Bedford and Flitwick. There are two bores; one carrying a pair of fast lines, the other a pair of slow lines. Both are 715 yards long....	Railway	715 yard	715 yd	4 tracks in 2 bores	1859	52.03361°N 0.51333°W
Bedfordshire	Old Warden Tunnel Old Warden Tunnel The Old Warden Tunnel is an abandoned tunnel near the village of Old Warden in Bedfordshire.-History:The Tunnel was built as part of the Midland Railway connecting Bedford and Hitchin, and from there to London between 1853 and 1857. Contrary to popular belief the line lost its passenger services...	Railway	807	807 metres (882.5 yd)	Brick construction using cut and cover. Carried the Bedford Bedford Bedford is the county town of Bedfordshire, in the East of England. It is a large town and the administrative centre for the wider Borough of Bedford. According to the former Bedfordshire County Council's estimates, the town had a population of 79,190 in mid 2005, with 19,720 in the adjacent town...  to Hitchin Hitchin Hitchin is a town in Hertfordshire, England, with an estimated population of 30,360.-History:Hitchin is first noted as the central place of the Hicce people mentioned in a 7th century document, the Tribal Hidage. The tribal name is Brittonic rather than Old English and derives from *siccā, meaning...  line.	1853	52.08835°N 0.37581°W
Bedfordshire	Wymington Tunnel	Railway	1850 yard	1850 yd		1859	52.25166°N 0.58266°W
Cheshire	Disley Tunnel Disley Tunnel Disley Tunnel [UK] was built by the Midland Railway in 1902 on its line between New Mills South Junction and Manchester Central, which was more direct than the congested and difficult lines through Stockport Tiviot Dale....	Railway	3535	3535 metres (3,865.9 yd)	Bored tunnel	1901	53.37172°N 2.08576°W
Cheshire	Prestbury Tunnel	Railway	273 yard	273 yd	Brick	1845	53.29551°N 2.14447°W
Cheshire	Sutton Tunnel	Railway	1724	1724 metres (1,885.4 yd)	See also Sutton Tunnel railway accident Sutton Tunnel railway accident The Sutton Tunnel railway accident occurred in the Sutton tunnel between Frodsham and Moore in Cheshire, England on 30 April 1851. As a result of it nine people died and between 30 and 40 were injured.-Accident:...		53.32020°N 2.67790°W
Cornwall	Saltash Tunnel Saltash Tunnel The Saltash Tunnel is a road tunnel on the A38 at Saltash in Cornwall, UK and was opened in 1988.The central lane operates as a reversible lane to cope with holiday and rush hour traffic and the speed limit is 30 mph. The tunnel is used by more than 38,000 motorists per day and is 410 m long...	Road	410	410 metres (448.4 yd)	Carries the A38	1988	50.41161°N 4.21496°W
Cornwall	Brownqueen Tunnel Brownqueen Tunnel Brownqueen Tunnel is a railway tunnel Cornwall, on the Cornish Main Line. It is 88 yards long and is situated just above the River Fowey...	Railway	88 yard	88 yd			50.43466°N 4.68092°W
Cornwall	Toldish Tunnel Toldish Tunnel Toldish Tunnel was built by Joseph Treffry as part of his mineral tramway from Newquay which opened in 1849. This line was built to carry trams. In 1874 the line was taken over by the Cornwall Minerals Railway and the line from Newquay was extended to Par railway station...	Railway (for horse drawn trams)	500 yard	500 yd	disused (closed 1874)	1849	50.40311°N 4.92533°W
Cornwall	Trelill Tunnel Trelill Tunnel The Trelill Railway Tunnel was built in 1895 and formed part of the North Cornwall Railway network, which ran the Atlantic Coast Express to London, between Bodmin and Camelford. It is the only tunnel along this route....	Railway	333 yard	333 yd	disused (closed 1966)	1895	50.56886°N 4.76268°W
Cornwall	Shillingham Tunnel	Railway	451 yard	451 yd	aka Wiveliscombe	1908	50.39539°N 4.26427°W
Cornwall	Treverrin Tunnel	Railway	564 yard	564 yd		1859	50.38281°N 4.67616°W
Cornwall	Polperrow Tunnel	Railway	381 yards (348.4 m)	381 yd		1859	50.28615°N 5.01136°W
Cornwall	Buckshead Tunnel	Railway	320 yards (292.6 m)	320 yd		1859	50.27936°N 5.04071°W
Cornwall	Sparnick Tunnel	Railway	491 yard	491 yd		1863	50.24026°N 5.09462°W
Cornwall	Pinnock Tunnel	Railway, now converted to private road	1173 yards (1,072.6 m)	1173 yd		1874	50.35125°N 4.66219°W
Derbyshire	Alfreton Tunnel	Railway	840 yard	840 yd		1862	53.09200°N 1.36136°W
Derbyshire	Ashbourne Tunnel	Railway (now a cycleway)	350	350 metres (382.8 yd)		1899	53.01571°N 1.73483°W
Derbyshire	Ashwood Dale Tunnel	Railway	100 yard	100 yd		1863	53.25252°N 1.82034°W
Derbyshire	Barmoor Clough Tunnel	Railway	111 yard	111 yd		1863	53.31590°N 1.89683°W
Derbyshire	Bolsover Tunnel Bolsover Bolsover is a town near Chesterfield, Derbyshire, England. It is 145 miles  from London, 18 miles  from Sheffield, 26 miles  from Nottingham and 54 miles  from Manchester. It is the main town in the Bolsover district.The civil parish for the town is called...	Railway	2624 yard	2624 yd	Infilled with coal waste 1966-7	1897	53.21662°N 1.27669°W
Derbyshire	Bradway Tunnel Bradway Tunnel Bradway Tunnel, long, was built in 1870 about north of Dronfield, Derbyshire, in South Yorkshire, England.It is at the summit of the Midland Main Line between Chesterfield and Sheffield, on what is known to railwaymen as the "New Road" built by the Midland Railway to serve Sheffield, which was...	Railway	2026 yard	2026 yd		1870	53.31721°N 1.49813°W
Derbyshire	Breadsall Tunnel (also Morley)	Railway	218	238 yd		1878	53.24610°N 1.94720°W
Derbyshire	Burbage Tunnel	Railway	580 yard	580 yd		1830
Derbyshire	Butterley Tunnel Butterley Tunnel Butterley Tunnel is a one and three quarter mile long canal tunnel on the Cromford Canal below Ripley, in Derbyshire, England, opened to traffic in 1794.-Origins:...	Canal (disused)	2966 yard	2966 yd		1794	53.05936°N 1.39487°W
Derbyshire	Chee Tor Tunnel (1) Millers Dale Millers Dale is a valley on the River Wye in Derbyshire.It is a popular beauty spot in the Peak District of England, much of the area being preserved as a Site of Special Scientific Interest. Nearby is Ravenstor and Cheedale, both popular with rock-climbers...	Railway	430 yard	430 yd		1863
Derbyshire	Chee Tor Tunnel (2) Millers Dale Millers Dale is a valley on the River Wye in Derbyshire.It is a popular beauty spot in the Peak District of England, much of the area being preserved as a Site of Special Scientific Interest. Nearby is Ravenstor and Cheedale, both popular with rock-climbers...	Railway	94 yard	94 yd		1863
Derbyshire	Clay Cross Tunnel Clay Cross Tunnel Clay Cross Tunnel is a 1,784-yard tunnel on the former North Midland Railway line near Clay Cross in Derbyshire, England now part of the Midland Main Line....	Railway	1784 yard	1784 yd	Brick	1839	>-	Derbyshire	Cowburn Tunnel Cowburn Tunnel The Cowburn Tunnel is a railway tunnel at the western end of the Vale of Edale in the Derbyshire Peak District of England.The tunnel is long. It was built in 1891 by the Midland Railway, under Colborne...	Railway	1942 yard	1942 yd		1892
Derbyshire	Cressbrook Tunnel	Railway	471 yard	471 yd		1863
Derbyshire	Dove Holes Tunnel Dove Holes Tunnel Dove Holes Tunnel is a tunnel built by the Midland Railway between Peak Forest Signal Box and Chapel-en-le-Frith in Derbyshire.In the mid-nineteenth century, the Manchester, Buxton, Matlock and Midlands Junction Railway was jointly leased by the LNWR and Midland Railway, and ran as far as Rowsley...	Railway (freight)	2984 yard	2984 yd	Closed to passenger traffic in 1967	1865
Derbyshire	Duffield Tunnel	Railway	52 yard	52 yd		1867
Derbyshire	Eaves Tunnel	Railway	431 yard	4431 yd		1863
Derbyshire	Great Rocks Tunnel	Railway	161 yard	161 yd		1863
Derbyshire	Gregory Tunnel	Canal	76 yard	76 yd		1794
Derbyshire	Hollingwood Common Tunnel	Canal (disused)	3080 yard	3080 yd	Coalmine canal joining with Chesterfield Canal Chesterfield Canal The Chesterfield Canal is in the north of England and it is known locally as 'Cuckoo Dyke'. It was opened in 1777 and ran 46 miles from the River Trent at West Stockwith, Nottinghamshire to Chesterfield, Derbyshire...	1777
Derbyshire	Haddon Tunnel Haddon Tunnel Haddon Tunnel is a tunnel in Derbyshire, England built by the Midland Railway extending the Manchester, Buxton, Matlock and Midlands Junction Railway from Rowsley to Buxton, opened in 1863....	Railway	1058 yard	1058 yd	Constructed with cut and cover methods. Closed in 1967	1863
Derbyshire	Hag Tunnel	Canal (disused)	93 yard	93 yd		1794
Derbyshire	Headstone Tunnel	Railway	533 yard	533 yd		1863
Derbyshire	High Tor Tunnel 1	Railway	321 yard	321 yd		1849
Derbyshire	High Tor Tunnel 1A	Railway	58 yard	58 yd		1849
Derbyshire	High Tor Tunnel 2	Railway	378 yard	378 yd		1849
Derbyshire	Holt Lane Tunnel	Railway	126 yard	126 yd		1849
Derbyshire	Hopton Tunnel	Railway	113 yard	113 yd		1830
Derbyshire	Hindlow Tunnel	Railway	514 yard	514 yd		1832
Derbyshire	Lea Wood Tunnel	Railway	315 yard	315 yd		1849
Derbyshire	Litton Tunnel	Railway	516 yard	516 yd		1863
Derbyshire	Mickleover Tunnel	Railway	464 yard	464 yd		1878
Derbyshire	Milford Tunnel Milford Tunnel Milford Tunnel in Derbyshire is a twin track railway tunnel on the Midland Main Line which runs under a hill called the Chevin between Duffield and Belper...	Railway	855 yard	855 yd		1839
Derbyshire	Morley Tunnel	Railway	238 yard	238 yd		1878
Derbyshire	Newhaven Tunnel	Railway	51 yard	51 yd		1830
Derbyshire	New Mills Tunnel	Railway	123 yard	123 yd		1867
Derbyshire	Newtown Tunnel	Railway	90 yard	90 yd		1902
Derbyshire	Norwood Tunnel Norwood Tunnel Norwood Tunnel was a , and brick lined canal tunnel on the line of the Chesterfield Canal with its Western Portal in Norwood, Derbyshire and its Eastern Portal in Kiveton, South Yorkshire, England.-Origins:...	Canal	2884 yard	2884 yd	Collapsed 1907	1775
Derbyshire	Pic Tor Tunnel	Railway	191 yard	191 yd		1863
Derbyshire	Redhill Tunnel 1	Railway	154 yard	154 yd		1839
Derbyshire	Redhill Tunnel 2	Railway	170 yard	170 yd		1839
Derbyshire	Rusher Cutting Tunnel	Railway	121 yard	121 yd		1863
Derbyshire	Shirland Tunnel	Railway	189 yard	189 yd
Derbyshire	Spinkhill Tunnel	Railway	501 yard	501 yd		1897
Derbyshire	Stodhart Tunnel	Tramway	101 yard	101 yd		1796
Derbyshire	Toadmoor Tunnel Toadmoor Tunnel Toadmoor Tunnel was built at Ambergate as part of the North Midland Railway, which opened in 1840.128 yards long, it was cut through an unstable hillside on a notoriously difficult line of route. George Stephenson designed it with an elliptical shape so that it had least diameter vertically with...	Railway	129 yard	129 yd		1839
Derbyshire	Totley Tunnel Totley Tunnel Totley Tunnel is a tunnel on the former Midland Railway Manchester-Sheffield line between Totley on the outskirts of Sheffield and Grindleford in Derbyshire, England. It was completed in 1893 and was the longest mainline railway tunnel within the United Kingdom that ran under land for its entire...	Railway	6230 yard	6230 yd		1892
Derbyshire	Whatstandwell Tunnel	Railway	149 yard	149 yd		1849
Derbyshire	Whitwell Tunnel	Railway	544 yard	544 yd
Derbyshire	Willersley Tunnel	Railway	764 yard	764 yd		1849
Derbyshire	Wingfield Tunnel	Railway	261 yard	261 yd		1839
Derbyshire	Woodhead Tunnel Woodhead Tunnel The Woodhead Tunnels are three parallel trans-Pennine 3-mile long railway tunnels on the Woodhead Line, a former major rail link from Manchester to Sheffield in northern England...	Railway	5293 yard	5293 yd
Devon	Dainton Tunnel South Devon Banks The South Devon Banks are a series of steep inclines on the ex-GWR railway line linking Exeter and Plymouth in Devon, England. These two major towns are separated by the rocky uplands of Dartmoor forcing the early railway surveyors to propose that the line skirt the difficult terrain of the...	Railway	291 yard	291 yd		1847
Devon	Whiteball Tunnel	Railway	1092 yard	1092 yd
Dorset	Beaminster Tunnel	Road (A3066)	345 feet (105.2 m)	345 ft	Carries the A3066. Brick lined construction.	1832
Dorset	Buckhorn Weston Tunnel	Railway	742 yard	742 yd
Dorset	Bincombe Tunnel (North)	Railway	819 yard	819 yd
Dorset	Bincombe Tunnel (South)	Railway	48 yard	48 yd
Dorset	Evershot Tunnel	Railway	308 yard	308 yd
Dorset	Frampton Tunnel	Railway	651 yard	651 yd
Dorset	Middlebere Plateway Tunnels Middlebere Plateway The Middlebere Plateway, or Middlebere Tramway, was a horse-drawn plateway on the Isle of Purbeck in the English county of Dorset. One of the first railways in southern England and the first in Dorset, the plateway was built by a very wealthy London Merchant Benjamin Fayle , to take Purbeck Ball...	Railway			Built in two stages	1807/1825
Dorset	Poundbury Tunnel	Railway	267 yard	267 yd
East Sussex	Cuilfail Tunnel Lewes Lewes is the county town of East Sussex, England and historically of all of Sussex. It is a civil parish and is the centre of the Lewes local government district. The settlement has a history as a bridging point and as a market town, and today as a communications hub and tourist-oriented town...	Road	430	430 metres (470.3 yd)		1980
Essex	Dartford Tunnel Dartford Crossing The Dartford - Thurrock River Crossing, Dartford River Crossing is a major road crossing of the River Thames in England, connecting Dartford in the south to Thurrock in the north, via two road tunnels and the Queen Elizabeth II Bridge. It opened in stages, the west tunnel in 1963, the east tunnel...	Road	1436	1436 metres (1,570.4 yd)		1963
Essex	Bell Common Tunnel	Road	470	470 metres (514 yd)	Cut and Cover on the M25 motorway M25 motorway The M25 motorway, or London Orbital, is a orbital motorway that almost encircles Greater London, England, in the United Kingdom. The motorway was first mooted early in the 20th century. A few sections, based on the now abandoned London Ringways plan, were constructed in the early 1970s and it ...	1984
Gloucestershire	Chipping Sodbury Tunnel	Railway	4064	2 miles, 924 yd
Gloucestershire	Patchway old tunnel	Railway	1139	1246	In use for Westbound trains
Gloucestershire	Patchway new tunnel	Railway	1609	1 mile	In use for Eastbound trains	1886
Gloucestershire	Sapperton Canal Tunnel Sapperton Canal Tunnel The Sapperton Canal Tunnel is a tunnel on the Thames and Severn Canal near Cirencester in Gloucestershire, England. It was the longest canal tunnel, and the longest tunnel of any kind, in England from 1789 to 1811....	Canal	2048 yards (1,872.7 m)	2048 yd		1789
Gloucestershire	Larger Sapperton railway tunnel	Railway	1864 yards (1,704.4 m)	1864 yd	Consists two tunnels. Tunnels are on the Golden Valley Line Golden Valley Line The Golden Valley Line is a railway line from Swindon to Cheltenham in the UK.The line was originally built as the Cheltenham and Great Western Union Railway in the 1840s...  from Stroud Stroud Stroud a town and civil parish in the county of Gloucestershire, England.Stroud may also refer to:*Stroud, New South Wales, Australia*Stroud, Ontario, Canada*Stroud , Gloucestershire, UK*Stroud...  to Swindon Swindon Swindon is a large town within the borough of Swindon and ceremonial county of Wiltshire, in South West England. It is midway between Bristol, west and Reading, east. London is east...
Gloucestershire	Smaller Sapperton railway tunnel	Railway	353 yards (322.8 m)	353 yd	Consists two tunnels. Tunnels are on the Golden Valley Line Golden Valley Line The Golden Valley Line is a railway line from Swindon to Cheltenham in the UK.The line was originally built as the Cheltenham and Great Western Union Railway in the 1840s...  from Stroud Stroud Stroud a town and civil parish in the county of Gloucestershire, England.Stroud may also refer to:*Stroud, New South Wales, Australia*Stroud, Ontario, Canada*Stroud , Gloucestershire, UK*Stroud...  to Swindon Swindon Swindon is a large town within the borough of Swindon and ceremonial county of Wiltshire, in South West England. It is midway between Bristol, west and Reading, east. London is east...
Gloucestershire	Severn Tunnel Severn Tunnel The Severn Tunnel is a railway tunnel in the United Kingdom, linking South Gloucestershire in the west of England to Monmouthshire in south Wales under the estuary of the River Severn....	Railway	7012	4 miles, 628 yards
Hampshire	Fareham Tunnel No. 1	Railway	147 yards (134.4 m)	147	Also known as Funtley No.1; also include M27 bridge
Hampshire	Fareham Tunnel No. 2	Railway	553 yards (505.7 m)	553	Also known as Funtley No.2
Hampshire	Greywell Tunnel Greywell Tunnel The Greywell Tunnel is a 0.6 hectare biological Site of Special Scientific Interest in Hampshire, England, notified in 1985. When opened in 1794 it was the longest tunnel on the Basingstoke Canal. It was closed due to a roof fall in 1932.-History:...	Canal	1125	1230 yd	Brick construction
Hampshire	Micheldever Tunnel	Railway
Hampshire	Midhurst Tunnel	Railway	276 yards (252.4 m)	276
Hampshire	Popham No 1 Tunnel	Railway	265 yards (242.3 m)	265 yd
Hampshire	Popham No 2 Tunnel	Railway	199 yards (182 m)	199 yd
Hampshire	Privett Tunnel	Railway	1058 yards (967.4 m)	1058 yd	Closed 1955	1903
Hampshire	Southampton Civic Centre Tunnel Southampton Civic Centre Tunnel Southampton Civic Centre Tunnel is a railway tunnel beneath the Civic Centre in the centre of the Hampshire city of Southampton, in England. Opening in August 1847, its construction linked the stations of Southampton Terminus and Southampton West End...	Railway			Allows the South Western Main Line South Western Main Line The South Western Main Line is a railway line between London Waterloo and Weymouth on the Dorset coast, in the south of England. It is a major railway which serves many important commuter areas, as well as the major settlements of Southampton and Bournemouth...  to pass under the Civic Centre Civic Centre, Southampton The Civic Centre in Southampton is the home of Southampton City Council.It hosts a police station, council offices, the Guildhall venue, the well-endowed city art gallery, and the city library...  in Southhampton	1847
Hampshire	Wallers' Ash Tunnel	Railway	501 yards (458.1 m)	501 yd
Hampshire	Winchester Tunnel (also St Giles or Chesil)	Railway	461 yards (421.5 m)	461 yd
Hertfordshire	Hatfield Tunnel	Road	1147	1531 yd	Cut and Cover A1 motorway between J3 and J4	1984
Hertfordshire	Holmesdale Tunnel	Road	600	656 yd	Cut and Cover M25 motorway M25 motorway The M25 motorway, or London Orbital, is a orbital motorway that almost encircles Greater London, England, in the United Kingdom. The motorway was first mooted early in the 20th century. A few sections, based on the now abandoned London Ringways plan, were constructed in the early 1970s and it ...  between J25 and J26	1984
Hertfordshire	Weston Hills Tunnel Weston Hills Tunnel The Weston Hills Tunnel is a 230m twin road tunnel under the Weston Hills near Baldock in Hertfordshire. It was constructed as part of the A505 Baldock bypass.A public inquiry was held in 1995, and in 2002 the government granted permission to build the road...	Road	230	230 metres (251.5 yd)	Cut and Cover	2006
Hertfordshire	Welwyn South Tunnel	Railway	446 yard	446 yd	One of the Welwyn tunnels was the scene of a major accident in 1866 - three freight trains collided and burned	1850
Hertfordshire	Welwyn North Tunnel	Railway	1046 yard	1046 yd		1850
Isle of Wight	Ryde Tunnel	Railway	391 yard	391 yd
Isle of Wight	Ventnor Tunnel	Railway	1313 yards (1,200.6 m)	1313 yd	Closed 1966	1866
Kent	Channel Tunnel Channel Tunnel The Channel Tunnel is a undersea rail tunnel linking Folkestone, Kent in the United Kingdom with Coquelles, Pas-de-Calais near Calais in northern France beneath the English Channel at the Strait of Dover. At its lowest point, it is deep...	Railway	50470	31 miles 635 yd		1994
Kent	Dartford Tunnel Dartford Crossing The Dartford - Thurrock River Crossing, Dartford River Crossing is a major road crossing of the River Thames in England, connecting Dartford in the south to Thurrock in the north, via two road tunnels and the Queen Elizabeth II Bridge. It opened in stages, the west tunnel in 1963, the east tunnel...	Road	1436	1436 metres (1,570.4 yd)		1963, 1980
Kent	Royal Harbour Tunnel	Road	800	800 metres (874.9 yd)
Kent	Roundhill Tunnel	Road	380	416 yd	For A20 road	2001
Kent	Shakespeare Tunnel South Eastern Main Line	Railway	1260	1387 yd	Two individual single bore tunnels.	1844
Kent	Abbotscliffe Tunnel South Eastern Main Line	Railway	1800	1800 metres (1,968.5 yd)	Twin track (i.e. single bore).	1844
Kent	Martello Tunnel South Eastern Main Line	Railway	500	500 metres (546.8 yd)	Twin track (i.e. single bore).	1844
Kent	Boxley Abbey to Detling	Pedestrian			An entrance was present where the A249 now passes at the foot of Detling Hil. The air shafts are visible to the side of the North Downs Way North Downs Way The North Downs Way is a long-distance path in southern England, opened in 1978. It runs from Farnham to Dover, past Godalming, Guildford, Dorking, Merstham, Otford and Rochester, along the Surrey Hills Area of Outstanding Natural Beauty and Kent Downs AONB.East of Boughton Lees, the path splits...  between Boxley and Detling.
Kent	Ramsgate Harbour Tunnel	Railway	1124 yards (1,027.8 m)	1124 yd
Kent	Charlton Tunnel Chatham Main Line The Chatham Main Line is a British railway line that runs from either London Victoria to Dover Priory / Ramsgate or London St Pancras to Faversham, with both services travelling via Medway...	Railway	138	154 yd
Kent	Dover Harbour Tunnel	Railway	625	684 yd		1861
Kent	Fort Pitt Tunnel Chatham Main Line The Chatham Main Line is a British railway line that runs from either London Victoria to Dover Priory / Ramsgate or London St Pancras to Faversham, with both services travelling via Medway...	Railway	391	428 yd	Twin track (i.e. single bore)
Kent	Chatham Tunnel Chatham Main Line The Chatham Main Line is a British railway line that runs from either London Victoria to Dover Priory / Ramsgate or London St Pancras to Faversham, with both services travelling via Medway...	Railway	272	297 yd	Twin track (i.e. single bore)
Kent	Knockholt Tunnel	Railway	732	800 yd
Kent	Shepherd's Well Tunnel Chatham Main Line The Chatham Main Line is a British railway line that runs from either London Victoria to Dover Priory / Ramsgate or London St Pancras to Faversham, with both services travelling via Medway...	Railway	2138	2376 yd
Kent	Bourne Park Tunnel Elham Valley Railway The Elham Valley Railway is a disused railway line that runs through the Elham Valley connecting Folkestone and Canterbury in East Kent. It was operational from 1887 to 1947.- History :...	Railway	400 yards (365.8 m)	400 yd	Used to hide a giant railway borne artillery piece in World War Two. Closed 1953.	1887
Kent	Somerhill Tunnel Hastings Line The Hastings Line is a railway line in Kent and East Sussex linking Hastings with the main town of Tunbridge Wells, and from there into London via Sevenoaks.-Openings:The line was opened by the South Eastern Railway in main three stages: – :...	Railway	410 yards (374.9 m)	410 yd	Single track due to low roof, originally twin track with low height stock.
Kent	Wells Tunnel Hastings Line The Hastings Line is a railway line in Kent and East Sussex linking Hastings with the main town of Tunbridge Wells, and from there into London via Sevenoaks.-Openings:The line was opened by the South Eastern Railway in main three stages: – :...	Railway	753	823 yd	Twin track unlike the other tunnels on the same line.	1846
Kent	Grove Tunnel Cuckoo Line Cuckoo Line The Cuckoo Line is an informal name for the now defunct railway service which linked Polegate and Eridge in East Sussex, England, from 1880 to 1968. It was nicknamed the Cuckoo Line by drivers, from a tradition observed at the annual fair at Heathfield, a station on the route...  / Wealden Line Wealden Line Taking its name from its route through the chalk hills of the North and South Downs of the Weald, England, the Wealden Line is a partly abandoned double track railway line in East Sussex and Kent that connected Lewes with Tunbridge Wells, a distance of ....	Railway			Closed on 6 July 1985 with the rest of the Tunbridge Wells West branch, but was not reopened when Spa Valley Railway Spa Valley Railway The Spa Valley Railway is a standard gauge heritage railway that runs between Tunbridge Wells, High Rocks, Groombridge, and Eridge railway station, where it links with the Oxted Line. En route it crosses the Kent and East Sussex border, a distance of 5 miles , along the former Three Bridges to...  reopened much of the line. Single track.
Kent	North Downs Tunnel North Downs Tunnel The North Downs Tunnel is a railway tunnel that carries High Speed 1 through the North Downs, at Blue Bell Hill near Maidstone in Kent, south-east England....  High Speed 1	Railway	3200	3200 metres (3,499.6 yd)	Under Blue Bell Hill Blue Bell Hill Blue Bell Hill is a chalk hill between Maidstone and Rochester in the English county of Kent. It overlooks the River Medway and is part of the North Downs. Settlements on the hill include Walderslade; and Blue Bell Hill and Kit's Coty villages... , this line is to the UIC GB gauge (i.e. height) rather than the smaller gauges of other, older British railway lines. It is twin track (i.e. siongle bore), but due to air pressure of opposing trains at high speed, trains are scheduled not to pass at the high speed (the line is 186 mph).
Kent	Tyler Hill Tunnel Canterbury and Whitstable Railway The Canterbury and Whitstable Railway, sometimes referred to colloquially as the Crab and Winkle Line, was an early British railway that opened in 1830 between Canterbury and Whitstable in the county of Kent, England.- Early history :...	Railway	828 yards (757.1 m)	828 yd	Underneath the current mains site of the University of Kent. The line was closed 1953, and part of the tunnel collapsed in July 1974	1830
Kent	Greenhithe Tunnel North Kent Line The North Kent Line is a railway line which connects central and south east London with Dartford and Medway.-Construction:The North Kent Line was the means by which the South Eastern Railway were able to connect its system to London at London Bridge...	Railway	228	253 yd
Kent	Higham and Strood tunnel	Railway	3595	3931 yd	It was built between 1819 to 1824 for the Thames and Medway Canal. A single track railway was laid on the tow-path in 1845, and was soon doubled by infilling the canal. A 100 yard air vent was cut into the middle when the tunnel.	1824
Lancashire	Sough Tunnel Darwen Darwen is a market town and civil parish located within Lancashire, England. Along with its northerly neighbour, Blackburn, it forms the Borough of Blackburn with Darwen — a unitary authority area...	Railway	2015 yards (1,842.5 m)	1 mile, 255 yards
Leicestershire	Ashby de la Zouch Tunnel	Railway	308 yards (281.6 m)	308 yd	Also known as Old Parks or Ashby Tunnel
Leicestershire	Clawson Tunnel	Railway	834 yards (762.6 m)	834 yd	Also known as Hose Tunnel
Leicestershire	Husbands Bosworth Tunnel Grand Union Canal The Grand Union Canal in England is part of the British canal system. Its main line connects London and Birmingham, stretching for 137 miles with 166 locks...	Canal	1066	1166 yd		1813
Leicestershire	Saddington Tunnel Grand Union Canal The Grand Union Canal in England is part of the British canal system. Its main line connects London and Birmingham, stretching for 137 miles with 166 locks...	Canal	805	880 yd		1797
Leicestershire	Glenfield Tunnel	Railway	1786 yards (1,633.1 m)	1786	Closed 1966.	1832
Lincolnshire	Kirton-in-Lindsey	Railway	1200	1200 metres (1,312.3 yd)
Lincolnshire	Stamford Tunnel	Railway	341 yards (311.8 m)	341 yd
London	London Underground London Underground The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...  Tunnels	Railway	17,100	17100 metres (18,700.8 yd)	Sub-surface lines opened in 1863 using cut and cover method. Deep level 'tube' lines opened in 1890 using tunnelling shield Tunnelling shield A tunnelling shield is a protective structure used in the excavation of tunnels through soil that is too soft or fluid to remain stable during the time it takes to line the tunnel with a support structure of concrete, cast iron or steel... s.	1863 onwards
London	Blackwall Tunnel Blackwall Tunnel The Blackwall Tunnel is a pair of road tunnels underneath the River Thames in east London, linking the London Borough of Tower Hamlets with the London Borough of Greenwich, and part of the A102 road. The northern portal lies just south of the East India Dock Road in Blackwall; the southern...  (Eastern bore)	Road	1174	1174 metres (1,283.9 yd)		1967
London	Blackwall Tunnel Blackwall Tunnel The Blackwall Tunnel is a pair of road tunnels underneath the River Thames in east London, linking the London Borough of Tower Hamlets with the London Borough of Greenwich, and part of the A102 road. The northern portal lies just south of the East India Dock Road in Blackwall; the southern...  (Western bore)	Road	1350	1350 metres (1,476.4 yd)	Built using tunnelling shield Tunnelling shield A tunnelling shield is a protective structure used in the excavation of tunnels through soil that is too soft or fluid to remain stable during the time it takes to line the tunnel with a support structure of concrete, cast iron or steel... s.	1897
London	East India Dock Link	Road	350	383 yd		1993
London	Greenwich foot tunnel Greenwich foot tunnel The Greenwich foot tunnel is a pedestrian tunnel crossing beneath the River Thames in East London, linking Greenwich in the south with the Isle of Dogs to the north...	Pedestrian	406 yards (371.2 m)	406 yd	Runs beneath River Thames; beining refurbished until 2011	1902
London	Islington Tunnel Islington Tunnel The Islington Tunnel carries the Regent's Canal Arm of the Grand Union Canal for 976 yards underneath the Angel area of Islington, London. The two other tunnels on the Regent's Canal are Eyre's tunnel and Maida Hill Tunnel.... , Regent's Canal Regent's Canal Regent's Canal is a canal across an area just north of central London, England. It provides a link from the Paddington arm of the Grand Union Canal, just north-west of Paddington Basin in the west, to the Limehouse Basin and the River Thames in east London....	Canal	878	976 yd		1818
London	Maida Hill Tunnel Maida Hill Tunnel Maida Hill Tunnel is a canal tunnel on the Regent's Canal in London. The two other tunnels on the Regent's Canal are Islington Tunnel and Eyre's tunnel.... , Regent's Canal Regent's Canal Regent's Canal is a canal across an area just north of central London, England. It provides a link from the Paddington arm of the Grand Union Canal, just north-west of Paddington Basin in the west, to the Limehouse Basin and the River Thames in east London....	Canal	251	272 yd		1816
London	Eyre's tunnel Eyre's tunnel Eyre's tunnel or Lisson Grove Tunnel is a short canal tunnel on the Regent's Canal that passes under Lisson Grove in London. It is only 48 metres long. The two other tunnels on the Regent's Canal are Islington Tunnel and Maida Hill Tunnel. Unlike the other tunnels, Eyre's Tunnel has a towpath.-... , Regent's Canal Regent's Canal Regent's Canal is a canal across an area just north of central London, England. It provides a link from the Paddington arm of the Grand Union Canal, just north-west of Paddington Basin in the west, to the Limehouse Basin and the River Thames in east London....	Canal	48	48 metres (52.5 yd)		1816
London	Kingsway Exchange	Telephone (disused)			Originally part of the Holborn deep shelter, it was used for telephone exchanges until closure in the 1990s due to asbestos	1954
London	Kingsway tramway subway Kingsway tramway subway The Kingsway Tramway Subway is a cut-and-cover Grade II Listed tunnel in central London, built by the London County Council, the only one of its kind in Britain...	Tramway (disused)			Constructed using 'cut and cover' method. Abandoned in 1952 with the rest of the tram network, and now partially used as the Strand Underpass Strand Underpass The Strand Underpass is a vehicle tunnel in central London connecting Waterloo Bridge to Kingsway near Holborn. It was built by John Mowlem & Co and opened on 21 January 1964....	1906
London	Limehouse Link tunnel Limehouse Link tunnel The Limehouse Link tunnel is a 1.1 mile long tunnel in the Limehouse area of east London on the A1203 road which runs from the northern approach to Tower Bridge eastwards to a point just north of Canary Wharf in London Docklands...	Road	1800	1800 metres (1,968.5 yd)	Constructed with cut and cover methods. Used by the A1203	1993
London	London Deep Level Shelters	Air Raid Shelter	3,700	3000 metres (3,280.8 yd)	Eight built in total	1942
London	Heathrow London Heathrow Airport London Heathrow Airport or Heathrow , in the London Borough of Hillingdon, is the busiest airport in the United Kingdom and the third busiest airport in the world in terms of total passenger traffic, handling more international passengers than any other airport around the globe...  link road	Road			Part of the airport link road which tunnels from M4/A4 roads to terminals 1,2 and 3
London	Heathrow ART Heathrow Airside Road Tunnel The Heathrow Airside Road Tunnel is a tunnel at London Heathrow Airport. It connects the airside roads around Terminals 1, 2 and 3 to the airside roads around Terminal 5....	Road	1420	1420 metres (1,552.9 yd)	Links the airside roads at terminals 1,2 & 3 with the new terminal 5. Only open to vehicles with security clearance	2005
London	Heathrow Cargo Tunnel Heathrow Cargo Tunnel The Heathrow Cargo Tunnel is a road tunnel in the London Borough of Hillingdon, London, UK that serves London Heathrow Airport.-History:In December 1968, the tunnel first opened, to connect Terminals 1, 2 and 3 to the newly opened cargo terminal at Heathrow, and it cost £2 million to build...	Road	885	885 metres (967.8 yd)	Links terminals 1,2 & 3 with terminal 4
London	London Post Office Railway London Post Office Railway The Post Office Railway, also known as Mail Rail, was a narrow-gauge driverless private underground railway in London built by the Post Office with assistance from the Underground Electric Railways Company of London to move mail between sorting offices...	Railway (decommissioned)	10,500	10500 metres (11,482.9 yd)	Narrow gauge railway built to transport mail between sorting office Sorting office Sorting office or Processing and Distribution Center is any location where postal operators bring mail after collection for sorting into batches for delivery to the addressee, which may be a direct delivery or sent onwards to another regional or local sorting office, or to another postal... s. Now decommissioned but still kept in working order.	1927
London	Rotherhithe Tunnel Rotherhithe Tunnel The Rotherhithe Tunnel is a road tunnel crossing beneath the River Thames in East London. It connects the Ratcliff district of Limehouse in the London Borough of Tower Hamlets north of the river to Rotherhithe in the London Borough of Southwark south of the river. It is designated as the A101...	Road	1481	1481 metres (1,619.6 yd)		1908
London	Strand Underpass Strand Underpass The Strand Underpass is a vehicle tunnel in central London connecting Waterloo Bridge to Kingsway near Holborn. It was built by John Mowlem & Co and opened on 21 January 1964....	Road	365	399 yd	Formed from the disused Kingsway Tramway Subway Kingsway tramway subway The Kingsway Tramway Subway is a cut-and-cover Grade II Listed tunnel in central London, built by the London County Council, the only one of its kind in Britain...	1964
London	Sydenham Hill (also Penge)	Railway	1958	2141 yd	The tunnel was disliked by Queen Victoria. The brick lining was made from the clay extracted from the tunnel itself.	1863
London	Thames Tunnel Thames Tunnel The Thames Tunnel is an underwater tunnel, built beneath the River Thames in London, United Kingdom, connecting Rotherhithe and Wapping. It measures 35 feet wide by 20 feet high and is 1,300 feet long, running at a depth of 75 feet below the river's surface...	Railway	396	433 yd	Built by Isambard Kingdom Brunel Isambard Kingdom Brunel Isambard Kingdom Brunel, FRS , was a British civil engineer who built bridges and dockyards including the construction of the first major British railway, the Great Western Railway; a series of steamships, including the first propeller-driven transatlantic steamship; and numerous important bridges...  and originally opened as a pedestrian link between Rotherhithe Rotherhithe Rotherhithe is a residential district in inner southeast London, England and part of the London Borough of Southwark. It is located on a peninsula on the south bank of the Thames, facing Wapping and the Isle of Dogs on the north bank, and is a part of the Docklands area...  and Wapping Wapping Wapping is a place in the London Borough of Tower Hamlets which forms part of the Docklands to the east of the City of London. It is situated between the north bank of the River Thames and the ancient thoroughfare simply called The Highway... . Taken over by the East London Railway and now part of the London Overground London Overground London Overground is a suburban rail network in London and Hertfordshire. It has been operated by London Overground Rail Operations since 2007 as part of the National Rail network, under the franchise control and branding of Transport for London...	1843
London	Tower Subway Tower Subway The Tower Subway is a tunnel, dug in 1869, beneath the River Thames in central London, close to the Tower of London. Its alignment runs between Tower Hill on the north side of the river and Vine Lane to the south...	Pedestrian (disused)	411	450 yd	Built using Tunnelling shield Tunnelling shield A tunnelling shield is a protective structure used in the excavation of tunnels through soil that is too soft or fluid to remain stable during the time it takes to line the tunnel with a support structure of concrete, cast iron or steel... s. Closed in 1898 due to the opening of the Tower Bridge Tower Bridge Tower Bridge is a combined bascule and suspension bridge in London, England, over the River Thames. It is close to the Tower of London, from which it takes its name... . Now used for water mains only	1870
London	Woolwich foot tunnel Woolwich foot tunnel The Woolwich foot tunnel is a tunnel crossing under the River Thames in East London from Woolwich in the London Borough of Greenwich to North Woolwich in the London Borough of Newham. The tunnel offers pedestrians an alternative way to cross the river when the Woolwich Ferry service is not operating...	Pedestrian	545 yards (498.3 m)	545 yd	Under River Thames. Being refurbished until 2011	1912
Manchester - Greater	Disley Tunnel Disley Tunnel Disley Tunnel [UK] was built by the Midland Railway in 1902 on its line between New Mills South Junction and Manchester Central, which was more direct than the congested and difficult lines through Stockport Tiviot Dale....	Railway	3535	2 miles, 346 yards		1902
Manchester - Greater	Farnworth Farnworth Farnworth is within the Metropolitan Borough of Bolton in Greater Manchester, England. It is located southeast of Bolton, 6 miles south-west of Bury , and northwest of Manchester....  Tunnel	Railway	295 yards (269.7 m)	295 yd	Built around 1832 by the Manchester and Bolton Railway Manchester and Bolton Railway The Manchester and Bolton Railway was a railway in the historic county of Lancashire, England, connecting Salford to Bolton. It was built by the proprietors of the Manchester, Bolton and Bury Canal Navigation and Railway Company who had in 1831 converted from a canal company...	1832
Manchester - Greater	Guardian Exchange Guardian Exchange Guardian Exchange was an underground telephone exchange built in Manchester in the 1950s. It was built together with the Anchor Exchange in Birmingham and the Kingsway exchange in London - all believed to provide hardened communications in the event of nuclear war...	Telephone	1300	1300 metres (1,421.7 yd)	Concrete and brick	1954
Manchester - Greater	Summit Tunnel Summit Tunnel The Summit Tunnel in England is one of the oldest railway tunnels in the world: it was built between 1838 and 1841 by the Manchester and Leeds Railway beneath the Pennines...	Railway	2638	1 mile, 1125 yards		1841
Merseyside	Kingsway Tunnel Kingsway Tunnel The Kingsway Tunnel is a road tunnel under the River Mersey in Merseyside, northwest England, and runs between Liverpool and Wallasey. It is one and half miles long and is often called the Wallasey Tunnel to distinguish it from the older Queensway Tunnel which runs between Liverpool and...	Road	2483	2483 metres (2,715.4 yd)	Also called Wallasey Tunnel	1971
Merseyside	Mersey Railway Tunnel	Railway	6860	4 miles, 462 yards;
Merseyside	Queensway Tunnel Queensway Tunnel The Queensway Tunnel is a road tunnel under the River Mersey, in the north west of England, between Liverpool and Birkenhead. It is often called the Birkenhead Tunnel, to distinguish it from the Kingsway Tunnel, which serves Wallasey.-History:...	Road	3237	3237 metres (3,540 yd)		1934
Merseyside	Victoria Tunnel Victoria Tunnel (Liverpool) -History:The Victoria Tunnel in Liverpool, England is a 2,475 metre long rail tunnel. Opened in 1849, its eastern portal is adjacent to Edge Hill station. The western end opens into a short cutting, between Byrom Street and Fontenoy Street, the short Waterloo Tunnel exits the cutting terminating...	Railway	2475	2475 metres (2,706.7 yd)		1849
Merseyside	Wapping Tunnel Wapping Tunnel Wapping or Edge Hill Tunnel in Liverpool, England, was constructed to enable goods services to operate between Liverpool docks and Manchester, and all points between, as part of the planned Liverpool and Manchester Railway. It was the first tunnel in the world to be bored under a metropolis...	Railway	2030	2030 metres (2,220 yd)	Originally static steam engine haulage. Closed on 15 May 1972	1830
Merseyside	Waterloo Tunnel Waterloo Tunnel The Waterloo Tunnel in Liverpool, England is a former railway tunnel, 862 metres long, which opened in 1849. At its western end was Waterloo Goods railway station, after 1895 continuing beyond to Liverpool Riverside railway station, and onto the dock railway system...	Railway	862	862 metres (942.7 yd)		1849
Merseyside	Williamson Tunnels	Folly	3000	3000 metres (3,280.8 yd)		1800-40
Norfolk	Aylsham Bypass Tunnel Aylsham Bypass Tunnel The Aylsham Bypass Tunnel is the only railway tunnel in Norfolk, England currently open to trains. It carries the narrow gauge Bure Valley Railway under the Aylsham Bypass...	Railway	182 yards (166.4 m)	182 yd	On narrow gauge Bure Valley Railway Bure Valley Railway The Bure Valley Railway is a minimum gauge heritage railway in Norfolk, within The Broads National Park.The railway runs from Wroxham to Aylsham and is Norfolk's longest railway of less than standard gauge. It uses both steam and diesel locomotives. There are intermediate halts at Brampton,...	1990
Norfolk	Cromer Tunnel Cromer Tunnel The Cromer Tunnel was built by the Norfolk and Suffolk Joint Railway to take their Cromer Beach to Mundesley line under the Great Eastern's Cromer High to Norwich line...	Railway	1226 yards (1,121.1 m)	1226
Northamptonshire	Blisworth Tunnel Blisworth Tunnel Blisworth Tunnel is a canal tunnel on the Grand Union Canal in Northamptonshire, England between the villages of Stoke Bruerne at the southern end and Blisworth at the northern end.-Measurements:...	Canal	2794	2794 metres (3,055.6 yd)	Grand Union Canal Grand Union Canal The Grand Union Canal in England is part of the British canal system. Its main line connects London and Birmingham, stretching for 137 miles with 166 locks...	1805
Northamptonshire	Braunston Tunnel Braunston Tunnel Braunston Tunnel is situated on the Grand Union Canal just past Braunston, Northamptonshire, England.Braunston Tunnel is 2042 yards in length...	Canal	1887	1887 metres (2,063.6 yd)	Grand Union Canal Grand Union Canal The Grand Union Canal in England is part of the British canal system. Its main line connects London and Birmingham, stretching for 137 miles with 166 locks...	1796
Northamptonshire	Corby Tunnel	Railway	1920 yards (1,755.6 m)	1 mile 160 yards		1878
Northamptonshire	Crick Tunnel Grand Union Canal The Grand Union Canal in England is part of the British canal system. Its main line connects London and Birmingham, stretching for 137 miles with 166 locks...	Canal	1397	1528 yd		1814
Northamptonshire	Kelmarsh Tunnel Kelmarsh Tunnel The Kelmarsh Tunnels are disused railway tunnels in Northamptonshire, England. The Northampton to Market Harborough line opened in 1859 and had tunnels at Kelmarsh and nearby Oxendon....	Railway	294	322 yd	Was single bore, but doubled. Now pedestrian	1859
Northamptonshire	Kilsby Tunnel Kilsby Tunnel The Kilsby Tunnel is a railway tunnel on the West Coast Main Line railway in England. It was designed and engineered by Robert Stephenson.The tunnel is located near the village of Kilsby in Northamptonshire roughly 5 miles south-east of Rugby and is long.The tunnel was opened in 1838 as a part of...	Railway	2218	1 mile, 666 yards
Northamptonshire	Oxendon Tunnel Oxendon Tunnel The Oxendon Tunnels are disused railway tunnels in Northamptonshire, England. The Northampton to Market Harborough line opened in 1859 and had tunnels at Oxendon and nearby at Kelmarsh....	Railway	422	462 yd	Was single bore, but doubled. Now pedestrian	1859
Nottinghamshire	Annesley Tunnel Robin Hood Line The Robin Hood Line is a railway line running from Nottingham to Worksop, Nottinghamshire. The stations between Shirebrook and Whitwell are in Derbyshire.The towns and villages served by the route are listed below:*Nottingham*Bulwell*Hucknall...	Railway	1001 yards (915.3 m)	1001
Nottinghamshire	Barnstone Tunnel	Railway	98 yards (89.6 m)	98 yd		1899
Nottinghamshire	Ashwell Tunnel	Railway	64	70 yd
Nottinghamshire	Drakeholes Tunnel	Canal	154 yards (140.8 m)	154 yd		1777
Nottinghamshire	Mapperley Tunnel	Railway	1132 yards (1,035.1 m)	1132 yd		1875
Nottinghamshire	Park Tunnel	Horsedrawn carriages
Nottinghamshire	Redhill Tunnel
Nottinghamshire	Sherwood Tunnel	Railway	442 yards (404.2 m)	442 yd
Nottinghamshire	Sherwood Rise Tunnel	Railway	662 yards (605.3 m)	662		1899
Nottinghamshire	Sneinton Tunnel	Railway	128 yards (117 m)	128 yd		1889
Nottinghamshire	Stanton Tunnel, Railway Test Track, Stanton on the Wolds	Railway	1330 yards (1,216.2 m)	1330		1879
Nottinghamshire	Thorneywood Tunnel	Railway	373	408 yd		1889
Nottinghamshire	Victoria Street Tunnel also known as Weekday Cross Tunnel	Railway	266	291 yd
Nottinghamshire	Watnall Tunnel Great Northern Railway (Great Britain) The Great Northern Railway was a British railway company established by the Great Northern Railway Act of 1846. On 1 January 1923 the company lost its identity as a constituent of the newly formed London and North Eastern Railway....	Railway	268 yards (245.1 m)	268 yd
Nottinghamshire	Mansfield Road Tunnel	Railway	1189 yards (1,087.2 m)	1189 yd		1698
Oxfordshire	Bodleian Library Tunnel Bodleian Library The Bodleian Library , the main research library of the University of Oxford, is one of the oldest libraries in Europe, and in Britain is second in size only to the British Library...	Library
Rutland	Glaston Tunnel	Railway	1842 yards (1,684.3 m)	1 mile 82 yd		1878
Rutland	Manton Tunnel	Railway	749 yards (684.9 m)	749 yd		1846
Rutland	Seaton Tunnel	Railway	206 yards (188.4 m)	206 yd		1878
Rutland	Wing Tunnel	Railway	353 yards (322.8 m)	353 yd		1878
Shropshire	Knowlesands Tunnel Knowlesands Tunnel Knowlesands Tunnel is a very short railway tunnel between Bridgnorth and Hampton Loade on the Severn Valley Railway in Shropshire, England. It has always only carried a single track although constructed so two lines of standard gauge track could pass through it....	Railway	40	44 yd	Severn Valley Railway Severn Valley Railway The Severn Valley Railway is a heritage railway in Shropshire and Worcestershire, England. The line runs along the Severn Valley from Bridgnorth to Kidderminster, following the course of the River Severn for much of its route...
Shropshire	Oakengates Tunnel Oakengates railway station Oakengates railway station serves the town of Oakengates, part of the new town of Telford, England. It lies on the Shrewsbury to Wolverhampton Line and has two platforms...	Railway	430	471 yd		1849
Somerset	Chilcompton Tunnel	Railway	64 yards (58.5 m)	64 yd	Somerset and Dorset Joint Railway Somerset and Dorset Joint Railway The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire... , north of	1874
Somerset	Combe Down Tunnel Combe Down Tunnel Combe Down Tunnel is on the now-closed Somerset and Dorset Joint Railway main line, between Midford and Bath Queen Square, below high ground and the southern suburbs of Bath, England, emerging below the southern slopes of Combe Down village....	Railway	1829 yards (1,672.4 m)	1829	Somerset and Dorset Joint Railway Somerset and Dorset Joint Railway The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire... , between Devonshire Tunnel and	1874
Somerset	Devonshire Tunnel	Railway	447 yards (408.7 m)	447 yd	Somerset and Dorset Joint Railway Somerset and Dorset Joint Railway The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire...  between and Combe Down Tunnel; Now a cycle path	1874
Somerset	Somerton Tunnel	Railway	1053 yards (962.9 m)	1053 yd	Berks and Hants Line between and
Somerset	Whiteball Tunnel	Railway	990	1092 yd	Bristol to Exeter line Bristol to Exeter line The Bristol to Exeter line is a major branch of the Great Western Main Line in the southern United Kingdom and runs from Bristol, to Exeter, from where it continues as the Exeter to Plymouth line...  between and on Somerset–Devon border	1844
Somerset	Windsor Hill Down Tunnel	Railway	218.5	239 yd	Brick-lined Somerset and Dorset Joint Railway Somerset and Dorset Joint Railway The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire...  between and Rail service closed in 1964 and the tunnel was closed to walkers until late 1990s.	1874
Somerset	Windsor Hill Up Tunnel	Railway	115.2	126 yd	Brick-lined Somerset and Dorset Joint Railway Somerset and Dorset Joint Railway The Somerset & Dorset Joint Railway – almost always referred to as "the S&D" – was an English railway line connecting Bath in north east Somerset and Bournemouth now in south east Dorset but then in Hampshire...  between and Rail service closed in 1964 and the tunnel opened to walkers.	1892
Staffordshire	Birchall Tunnel	Railway	69 yards (63.1 m)	69	disused since 1970, though plans are afoot to relay the line and reopen the tunnel	1849
Staffordshire	Bradnop Tunnel	Railway	36 yards (32.9 m)	36	Churnet Valley Railway Churnet Valley Railway The Churnet Valley Railway is a standard gauge heritage railway to the east of Stoke-on-Trent in Staffordshire. The CVR has two main operational headquarters - Cheddleton station, where the motive power department is based and where the first trains ran, and Kingsley and Froghall station, where...	1905
Staffordshire	Cheddleton Tunnel	Railway	486	531 yd	Churnet Valley Railway Churnet Valley Railway The Churnet Valley Railway is a standard gauge heritage railway to the east of Stoke-on-Trent in Staffordshire. The CVR has two main operational headquarters - Cheddleton station, where the motive power department is based and where the first trains ran, and Kingsley and Froghall station, where...	1849
Staffordshire	Harecastle Tunnel Harecastle Tunnel Harecastle Tunnel is a canal tunnel on the Trent and Mersey Canal at Kidsgrove in Staffordshire. It is made up of two separate, parallel, tunnels described as Brindley and the later Telford after the engineers that constructed them. Today only the Telford tunnel is navigable...	Canal	2675	2675 metres (2,925.4 yd)		1827
Staffordshire	Harecastle Tunnel Harecastle Tunnel Harecastle Tunnel is a canal tunnel on the Trent and Mersey Canal at Kidsgrove in Staffordshire. It is made up of two separate, parallel, tunnels described as Brindley and the later Telford after the engineers that constructed them. Today only the Telford tunnel is navigable...	Railway	310 yards (283.5 m)	310 yd
Staffordshire	Leek Tunnel	Railway	472 yards (431.6 m)	472 yd	disused since 1964	1849
Staffordshire	Meir Tunnel	Railway	814 yards (744.3 m)	814 yd		1894
Staffordshire	Meir Tunnel	Road	284 yards (259.7 m)	284 yd	On A50 road A50 road The A50 is a major trunk road in England. It runs from Warrington to Leicester; however, it was once a much longer route.-Current route:...	1997
Staffordshire	Oakamoor Tunnel Oakamoor tunnel Oakamoor Tunnel was a 497yd tunnel located north of Oakamoor railway station on the former Uttoxeter to North Rode section of the North Staffordshire Railway.The tunnel opened in 1849 when the line was opened...	Railway	497 yards (454.5 m)	497 yd	disused since 1965, though plans are afoot to relay the line and reopen the tunnel	1849
Staffordshire	Shugborough Tunnel	Railway	777 yards (710.5 m)	777 yd		1847
Staffordshire	Stockton Brook Tunnel	Railway	72 yards (65.8 m)	72 yd	disused since 1988, though plans are afoot re-open the line and tunnel	1867
Staffordshire	Swainsley Tunnel	Road	150	164 yd	former railway tunnel on the Leek and Manifold Light Railway	1904
Suffolk	Stoke Tunnel	Railway	361 yards (330.1 m)	361 yd		1846
Surrey	Betchworth Tunnel	Railway	385 yd (352 m)	385 yd	South of Dorking station Dorking railway station Dorking railway station is one of three railway stations that serve the town of Dorking in Surrey, England. The station is within walking distance of Dorking Deepdene station and interchange on a through ticket is permitted... .	1867
Surrey	Hindhead Tunnel Hindhead Tunnel The Hindhead Tunnel is a road tunnel that opened on 29 July 2011 as part of the new Hindhead bypass for the A3 road in Surrey. It forms part of the 4 mile dual-carriageway being built to replace the last remaining stretch of single-carriageway on the London to Portsmouth road...	Road	1830	1830 metres (2,001.3 yd)	Part of the A3	29 July 2011
Surrey	Merstham Tunnel	Railway	1831 yards (1,674.3 m)	1831 yd	1831
Surrey	Merstham Quarry Tunnel	Railway	2113 yards (1,932.1 m)	2113 yd
Surrey	Mickleham Tunnel	Railway	524 yd (479.1 m)	524 yd	Built by the London, Brighton and South Coast Railway London, Brighton and South Coast Railway The London, Brighton and South Coast Railway was a railway company in the United Kingdom from 1846 to 1922. Its territory formed a rough triangle, with London at its apex, practically the whole coastline of Sussex as its base, and a large part of Surrey... . Runs under the eastern side of Norbury Park Norbury Park Norbury Park is a swathe of land arranged around a small manor house near Leatherhead and Dorking, Surrey, which appears in the Domesday Book of 1086. The manor was also known as Northbury for some time....  between Leatherhead Leatherhead Leatherhead is a town in the County of Surrey, England, on the River Mole, part of Mole Valley district. It is thought to be of Saxon origin...  and Dorking Dorking Dorking is a historic market town at the foot of the North Downs approximately south of London, in Surrey, England.- History and development :... .	1867
Surrey	St Catherine's Tunnel Portsmouth Direct Line The Portsmouth Direct Line is the route of a railway service operated by South West Trains which runs between London Waterloo and Portsmouth Harbour, England...	Railway	132 yd (120.7 m)	132 yd	Built by the London and South Western Railway London and South Western Railway The London and South Western Railway was a railway company in England from 1838 to 1922. Its network extended from London to Plymouth via Salisbury and Exeter, with branches to Ilfracombe and Padstow and via Southampton to Bournemouth and Weymouth. It also had many routes connecting towns in... . Runs under St Catherine's Hill south of Guildford Guildford Guildford is the county town of Surrey. England, as well as the seat for the borough of Guildford and the administrative headquarters of the South East England region... . Also known as the Guildford Sand Tunnel.	1849
Tyne and Wear	Tyne Tunnel Tyne Tunnel The Tyne Tunnel is a the name given to two two-lane toll vehicular tunnels under the River Tyne in North East England. Completed in 1967 and 2011 respectively, they connect the town of Jarrow on the south bank of the river with North Shields and Howdon on the north...	Road	1833 yards (1,676.1 m)	1833	Also pedestrian tunnel	1967
Tyne and Wear	Victoria Tunnel Victoria Tunnel (Newcastle) The Victoria Tunnel is a subterranean wagonway that runs under Newcastle upon Tyne, England from the Town Moor down to the River Tyne. It was built between 1839-42 to transport coal from Leazes Main Colliery in Spital Tongues to riverside staithes ready for loading onto boats for export.The tunnel...	Wagonway				1842
Warwickshire	Shrewley Tunnel Shrewley Tunnel Shrewley Tunnel is a canal tunnel near Shrewley, Warwickshire, England.It lies on the Grand Union Canal about two miles north of Hatton Locks. It is 433 yards/396 metres long, built of brick and although wide enough for two boats to pass has no towpath inside...	Canal	396	433 yd		1799
West Midlands	Anchor Exchange Anchor Exchange Anchor Exchange was an underground, hardened telephone exchange built in Birmingham, England in the 1950s. It is located nominally on Newhall St....	Telephone
West Midlands	Snow Hill Railway Tunnel Birmingham Snow Hill station Birmingham Snow Hill is a railway station and tram stop in the centre of Birmingham, England, on the site of an earlier, much larger station built by the former Great Western Railway . It is the second most important railway station in the city, after Birmingham New Street station...	Railway	581	635 yd		1852
West Midlands	Dudley Tunnel Dudley Tunnel Dudley Tunnel is a canal tunnel on the Dudley Canal Line No 1, England. At about long, it is now the second longest canal tunnel on the UK canal network today....	Canal	2884	2884 metres (3,154 yd)		1792
West Midlands	Dudley Railway Tunnel Dudley Railway Tunnel Dudley Railway Tunnel is a railway tunnel located near to the former Dudley railway station in Dudley, West Midlands, England. It was opened in 1850 to allow the Oxford-Worcester-Wolverhampton Line between Stourbridge and Wolverhampton to pass for several hundred yards beneath a hilly area of...	Railway	948 yard	948 yd		1850
West Midlands	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....	Canal	3470	3470 metres (3,794.8 yd)	Disused since 1917	1798
West Midlands	Netherton Canal 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...	Canal	2768	2768 metres (3,027.1 yd)		1858
West Midlands	Queensway (Birmingham) Queensway (Birmingham) Queensway is a name applied to a number of roads in central Birmingham, especially those which formed the A4400 Inner Ring Road.The name is most often used to refer to the Great Charles Street Queensway tunnel, part of the A38....	Road	548	600 yd
West Sussex	Balcombe tunnel Balcombe tunnel Balcombe tunnel is a railway tunnel on the Brighton Main Line through the Sussex Weald between Three Bridges and Balcombe. It is 1141 yards long.-History:The tunnel was constructed by the London and Brighton Railway during 1840-41...	Railway	1036	1133 yd		1841
West Sussex	Clayton Tunnel Clayton Tunnel Clayton Tunnel is a railway tunnel located near the village of Clayton, West Sussex between Hassocks and Preston Park railway stations on the Brighton Main Line...	Railway	2066	1 mile, 499 yards
West Sussex	North Stoke Tunnel	Railway	83 yards (75.9 m)	83 yd
West Sussex	Southwick Hill Tunnel	Road	490	490 metres (535.9 yd)	Part of A27 A27 road The A27 is a major road in England. It runs from its junction with the A36 at Whiteparish in the county of Wiltshire. It closely parallels the south coast, where it passes through West Sussex and terminates at Pevensey in East Sussex.Between Portsmouth and Lewes, it is one of the busiest trunk...  Brighton bypass	1996
Wiltshire	Box Tunnel Box Tunnel Box Tunnel is a railway tunnel in Western England, between Bath and Chippenham, dug through Box Hill, and is one of the most significant structures on the Great Western Main Line...	Railway	2937	1 mile, 1452 yards		1841
Wiltshire	Bruce Tunnel Bruce Tunnel The Bruce Tunnel is on the summit pound of the Kennet and Avon Canal between Wootton Top Lock and Crofton Locks in Wiltshire, England.This is the only tunnel on the canal and it is 502 yards long...	Canal	459	502 yd	Kennet and Avon Canal Kennet and Avon Canal The Kennet and Avon Canal is a waterway in southern England with an overall length of , made up of two lengths of navigable river linked by a canal. The name is commonly used to refer to the entire length of the navigation rather than solely to the central canal section...	1809
Worcestershire	Colwall Old Tunnel	Railway	1567 yards (1,432.9 m)	1567 yd	Closed 1926	1860
Worcestershire	Redditch Tunnel	Railway	300	330 yd	Closed 1980s	1868
Yorkshire - North	Burdale Tunnel Burdale Tunnel Burdale Tunnel is a railway tunnel on the now abandoned Malton & Driffield Railway . It lies near the village of Burdale in North Yorkshire, England, between the former Burdale and railway stations, and was built to take the rail line through the hills of the Yorkshire Wolds.Construction began in...	Railway	1746 yards (1,596.5 m)	1746 yd		1853
Yorkshire - North	Blea Moor Tunnel Blea Moor Tunnel The Blea Moor Tunnel is a 2,629 yd railway tunnel that is between Ribblehead Viaduct and Dent railway station in England. It is the longest tunnel on the Settle-Carlisle Line, being almost twice as long as the second longest tunnel, Rise Hill Tunnel...	Railway	2,404	2404 metres (2,629 yd)	Settle & Carlisle Main Line	1876
Yorkshire - North	Prospect Tunnel, Crimple, Harrogate	Railway	754	825 yd		1848
Yorkshire - North	Falsgrave Tunnel	Railway	260 yards (237.7 m)	260 yd		1885
Yorkshire - North	Kettleness Tunnel	Railway	308 yards (281.6 m)	308 yd		1883
Yorkshire - North	Ravenscar Tunnel	Railway	279 yards (255.1 m)	279 yd	Also Peak Tunnel	1885
Yorkshire - North	Sandsend Ness Tunnel	Railway	1652 yards (1,510.6 m)	1652 yd		1883
Yorkshire - South	Bradway Tunnel Bradway Tunnel Bradway Tunnel, long, was built in 1870 about north of Dronfield, Derbyshire, in South Yorkshire, England.It is at the summit of the Midland Main Line between Chesterfield and Sheffield, on what is known to railwaymen as the "New Road" built by the Midland Railway to serve Sheffield, which was...	Railway	1853	1 mile, 267 yards		1870
Yorkshire - South	Norwood Tunnel Norwood Tunnel Norwood Tunnel was a , and brick lined canal tunnel on the line of the Chesterfield Canal with its Western Portal in Norwood, Derbyshire and its Eastern Portal in Kiveton, South Yorkshire, England.-Origins:...	Canal	2637	1 mile, 1124 yards	Disused since 1907	1775
Yorkshire - South	Thurgoland Tunnel Thurgoland Tunnel Thurgoland Tunnel is a double bore abandoned railway tunnel between Penistone and Wortley. Its total length is . It was opened in 1845 on the Sheffield, Ashton-Under-Lyne and Manchester Railway between Manchester Store Street and Sheffield....	Railway			Second single-track bore opened 1952 due to clearance problems on curves. Closed 1983	1845
Yorkshire - South	Totley Tunnel Totley Tunnel Totley Tunnel is a tunnel on the former Midland Railway Manchester-Sheffield line between Totley on the outskirts of Sheffield and Grindleford in Derbyshire, England. It was completed in 1893 and was the longest mainline railway tunnel within the United Kingdom that ran under land for its entire...	Railway	5697	3 miles, 950 yards		1893
Yorkshire - South	Woodhead Tunnel Woodhead Tunnel The Woodhead Tunnels are three parallel trans-Pennine 3-mile long railway tunnels on the Woodhead Line, a former major rail link from Manchester to Sheffield in northern England...  1	Railway	4840	3 miles, 13 yards	First of 3 tunnels	1845
Yorkshire - South	Woodhead Tunnel Woodhead Tunnel The Woodhead Tunnels are three parallel trans-Pennine 3-mile long railway tunnels on the Woodhead Line, a former major rail link from Manchester to Sheffield in northern England...  2	Railway	4840	3 miles, 13 yards	Second of 3 tunnels	1853
Yorkshire - South	Woodhead Tunnel Woodhead Tunnel The Woodhead Tunnels are three parallel trans-Pennine 3-mile long railway tunnels on the Woodhead Line, a former major rail link from Manchester to Sheffield in northern England...  3	Railway	4871	3 miles, 60 yards	Third tunnel built to support electrification. Now used by National Grid	1953
Yorkshire - West	Bramhope Tunnel Bramhope Tunnel The Bramhope Tunnel is a railway tunnel long, owned by Network Rail on a route currently operated mainly by Northern Rail. It was constructed during 1845–1849 on the Harrogate Line, carrying rural and commuter passengers between Horsforth and Weeton in West Yorkshire, England...	Railway	3439	2 miles, 241 yards		1849
Yorkshire - West	Morley Tunnel Morley Tunnel Morley Tunnel is a railway tunnel in West Yorkshire, England, that is situated between Morley railway station and Batley railway station on the Huddersfield Line...	Railway	3081	1 mile, 1609 yards		1848
Yorkshire - West	Standedge Tunnels 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...	Canal	5029	3 miles, 220 yards	Disused 1945; reopened 2001. Longest and highest canal tunnel in UK.	1811
Yorkshire - West	Standedge Tunnels 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...  - Central tunnel	Railway	4803	3 miles, 57 yards	First of the 3 rail tunnels to be opened. Used for emergency access.	1848
Yorkshire - West	Standedge Tunnels 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...  - South tunnel	Railway	4803	3 miles, 57 yards	Second single track tunnel	1871
Yorkshire - West	Standedge Tunnels 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...  - live tunnel	Railway	4806	3 miles, 60 yards	Third tunnel, double track, in use	1894
Yorkshire - West	Summit Tunnel Summit Tunnel The Summit Tunnel in England is one of the oldest railway tunnels in the world: it was built between 1838 and 1841 by the Manchester and Leeds Railway beneath the Pennines...	Railway	2638	1 mile, 1125 yards	Manchester and Leeds Railway Manchester and Leeds Railway The Manchester and Leeds Railway was a railway company in the United Kingdom which opened in 1839, connecting Manchester with Leeds via the North Midland Railway which it joined at Normanton....	1841
Yorkshire - West	Thackley Tunnel Thackley Tunnel Thackley tunnel is a railway tunnel on the Airedale Line from Leeds to Shipley then on to Bradford or Skipton.Built in 1844/5, the tunnel is approximately long and cut through the prominent Thackley Hill to reduce travel time...	Railway	1200	1300 yd	Airedale Line Airedale Line The Airedale Line is the name given to one of the rail services in the Metro area of northern England. The service is operated by Northern Rail, on the route connecting Leeds and Bradford with Skipton in the North of England. Some services along the line continue to Morecambe or Carlisle...	1845
Yorkshire - West	Victoria Avenue Tunnel	Road (A658)	237	258 yd	Under the runway of Leeds Bradford International Airport Leeds Bradford International Airport Leeds Bradford International Airport is located at Yeadon, in the City of Leeds Metropolitan District in West Yorkshire, England, northwest of Leeds city centre itself...	1982/3 http://web.me.com/jrichardkay/Richards_Bridges/Victoria_Avenue_Tunnel.html

Wales

County	Tunnel	Type	Length (Metres)	Length (Imperial)	Construction method / Notes	Date of opening
Bridgend	Nottage, Porthcawl Llynvi and Ogmore Railway * Ada * Una The railway owned two 0-6-0STs for goods traffic. Built by Slaughter, Grunning and Company, they were similar to the South Devon Railway Dido class built at around the same time....	Railway	63 yard	63 yd	Single track. Short, south portal relandscaped.	1829?
Caerphilly	Pennar Tunnel	Railway	239 yards (218.5 m)	239 yd	On Halls Road Branch between Risca and Markham
Caerphilly	Glyn Tunnel, Hafodyrynys Hafodyrynys Hafodyrynys is a village on the A472 road between Pontypool and Crumlin in Caerphilly county borough, south-east Wales.The village is served by an inn, a takeaway, a florist and fuel filling station. As of 2008 a new housing estate has been completed on the western periphery of the village.The...	Railway	280 yards (256 m)	280 yd	Taff Vale Extension. Single track. Closed 1964.	1857
Caerphilly	Caerphilly Tunnel	Railway	1933 yards (1,767.5 m)	1933 yd	In use between Thornhill, Cardiff and Caerphilly. On the Rhymney Railway	1871
Cardiff	Queensgate Tunnel	Road	715	715 metres (781.9 yd)	Part of the A4232 Butetown link road	1995
Carmarthenshire	Pencader Tunnel Pencader Tunnel Pencader Tunnel is an abandoned railway tunnel on the old trackbed of the Carmarthen to Aberystwyth main line in south-west Wales. It was originally bored for the Llanpumsaint-Pencader section of the Carmarthen & Cardigan Railway....	Railway	895 yard	895 yd	Built for broad gauge	1861
Gwynedd	Conwy Road Tunnel	Road	1080	1080 metre	Carries the A55 road A55 road The A55, also known as the North Wales Expressway, is a major road in Britain. Its entire length is a dual carriageway primary route, with the exception of the point where it crosses the Britannia Bridge over the Menai Strait. All junctions are grade separated except for two roundabouts — one...  around Conwy	1991
Gwynedd	Penmaenbach Westbound Tunnel	Road	658	658 metre	Carries the Westbound A55 road A55 road The A55, also known as the North Wales Expressway, is a major road in Britain. Its entire length is a dual carriageway primary route, with the exception of the point where it crosses the Britannia Bridge over the Menai Strait. All junctions are grade separated except for two roundabouts — one...  through the Penmaenbach headland	1989
Gwynedd	Penmaenbach Eastbound Headland Tunnel	Road	172	172 metre	Carries the Eastbound A55 road A55 road The A55, also known as the North Wales Expressway, is a major road in Britain. Its entire length is a dual carriageway primary route, with the exception of the point where it crosses the Britannia Bridge over the Menai Strait. All junctions are grade separated except for two roundabouts — one...  through the Penmaenbach headland	1932
Gwynedd	Pen-y-Clip Westbound Tunnel	Road	930	930 metre	Carries the Westbound A55 road A55 road The A55, also known as the North Wales Expressway, is a major road in Britain. Its entire length is a dual carriageway primary route, with the exception of the point where it crosses the Britannia Bridge over the Menai Strait. All junctions are grade separated except for two roundabouts — one...  through the Pen-y-Clip headland	1994
Gwynedd	Penhelig Tunnels (Aberdovey No. 1, Frongoch)	Railway	200 yard	200 yd	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels (Aberdovey No. 2, Morga Bach)	Railway	219 yard	219 yd	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels Penhelig railway station Penhelig railway station serves the eastern outskirts of the seaside resort of Aberdovey in Gwynedd, Wales. Its situation is unusual, being located on a short length of sharply curved single track between two tunnels...  (Aberdovey No. 3)	Railway	191 yard	191 yd	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels Penhelig railway station Penhelig railway station serves the eastern outskirts of the seaside resort of Aberdovey in Gwynedd, Wales. Its situation is unusual, being located on a short length of sharply curved single track between two tunnels...  (Aberdovey No. 4, Craig-y-Don)	Railway	533 yard	533 yd	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Ffestiniog Tunnel	Railway	3726 yard	3726 yd	UK's longest single-track tunnel, in use on the Conwy Valley Line Conwy Valley Line The Conwy Valley Line is a railway line in north Wales. It runs from Llandudno via Llandudno Junction to Blaenau Ffestiniog, and was originally part of the London and North Western Railway, being opened in stages to 1879...
Monmouthshire	Severn Tunnel Severn Tunnel The Severn Tunnel is a railway tunnel in the United Kingdom, linking South Gloucestershire in the west of England to Monmouthshire in south Wales under the estuary of the River Severn....	Railway	7012	4 miles, 628 yards	Longest mainline tunnel in UK until Channel Tunnel opened	1886
Monmouthshire	Gibraltar Tunnel	Road	185	185 metres (202.3 yd)	Twin bore on A40 A40 road The A40 is a major trunk road connecting London to Fishguard, Wales and officially called The London to Fishguard Trunk Road in all legal documents and Acts...  dual carriageway	1968
Monmouthshire	Bryn Tunnel, Hengoed	Railway	398 yards (363.9 m)	398	On Newport, Abergavenny and Hereford Railway Newport, Abergavenny and Hereford Railway The Newport, Abergavenny and Hereford Railway was a railway line connecting the Welsh port city of Newport via Abergavenny, to the major English market town of Hereford.Sponsored by the LNWR, it opened on 6 December 1853...  from Pontllanfraith to Hengoed
Monmouthshire	Clydach Tunnels	Railway	250	250 metres (273.4 yd)	Between Nantyglo and Govilon. Closed 1958	1862, doubled 1877
Monmouthshire	Gelli-felen Tunnels	Railway	252 yards (230.4 m)	352 yd	Co-located with Clydach
Monmouthshire	Monmouth Troy	Railway	130	130 metres (142.2 yd)	Disused and blocked
Monmouthshire	Usk	Railway	256 yards (234.1 m)	256 yd	Disused but walkable	1857
Neath Port Talbot	Cymmer, Afan Valley	Railway	1591 yard	1591 yd	Built by the Great Western Railway. Single track. Straight. North end relandscaped
Neath Port Talbot	Gelli, Afan Valley	Railway	167 yard	167 yd	Rhondda and Swansea Bay Railway Rhondda and Swansea Bay Railway The Rhondda and Swansea Bay Railway connected the coal mines of the Rhondda Valley to the Swansea Bay ports.Connecting with the Taff Vale Railway at Treherbert, it had branches to Aberavon and Port Talbot docks. It was later extended to Swansea and a branch to Neath was added, bringing the total... . Single track. Stone and brick. Closed 1964.	1882
Neath Port Talbot	Gylfichi, Tonmawr Afan Valley	Railway (disused)	1019 yard	1019 yd	Single track. North end collapsed 1947. South Wales Mineral Railwayhttp://www.forgottenrelics.co.uk/tunnels/gallery/gyfylchi.html.	1863
Neath Port Talbot	Cwmcerwyn, Maesteg	Railway	1012 yard	1012 yd	Built by the Port Talbot Railway and Docks Company. Single track, curved.http://cardiffrail.co.uk/Rail/TUN/glam/Cwmcerwyn-Tunnel.html	1964
Newport	Hillfield Tunnels, Newport Newport railway station Newport railway station is the 3rd busiest railway station in Wales , situated in Newport city centre. It is part of the British railway system owned by Network Rail and is operated by Arriva Trains Wales, although First Great Western and CrossCountry also provide services...	Railway	770 yards (704.1 m)	770 yd	Mainline tunnel west of Newport railway station Newport railway station Newport railway station is the 3rd busiest railway station in Wales , situated in Newport city centre. It is part of the British railway system owned by Network Rail and is operated by Arriva Trains Wales, although First Great Western and CrossCountry also provide services... .
Newport	Gaer Tunnel, Newport Newport railway station Newport railway station is the 3rd busiest railway station in Wales , situated in Newport city centre. It is part of the British railway system owned by Network Rail and is operated by Arriva Trains Wales, although First Great Western and CrossCountry also provide services...	Railway	403 yards (368.5 m)	403 yd	Line to Bassaleg west of Hillfield Tunnels.
Newport	Brynglas Tunnels Brynglas Tunnels The Brynglas Tunnels carry the M4 motorway under Brynglas Hill in Newport. The twin-bored tunnels were the first tunnels in the British motorway network and are still the only bored tunnels....	Road	400 yards (365.8 m)	400 yd	Twin-bore, two-lane tunnels on M4 M4 motorway The M4 motorway links London with South Wales. It is part of the unsigned European route E30. Other major places directly accessible from M4 junctions are Reading, Swindon, Bristol, Newport, Cardiff and Swansea... .	1967
Pembrokeshire	Castle Tunnel, Maenclochog	Railway	99 yards (90.5 m)	99 yd	Used for target practice in WWII RAF Angle RAF Angle was a World War II RAF station in South West Wales, near the village of Angle, Pembrokeshire. It was opened in December 1941 and closed in early 1945.... . Closed 1949.	1867
Pembrokeshire	Saundersfoot Railway Saundersfoot Railway The Saundersfoot Railway was a Welsh industrial narrow gauge railway built in 1829 to carry coal from mines around Reynalton to the harbour at Saundersfoot on the Pembrokeshire coast. It was the first railway line to be built in Pembrokeshire, remaining independent until it closed in 1939...	Railway	490 yards (448.1 m)	490 yd	3 short Coppet Hall Tunnels on the shoreline plus the longer Hill Tunnel inland
Powys	Torpantau Tunnel	Railway	667 yards (609.9 m)	667 yd	Brecon and Merthyr Railway Brecon and Merthyr Railway The Brecon and Merthyr Junction Railway was one of several railways that served the industrial areas of South Wales and Monmouthshire. It ranked fifth amongst them in size, although hemmed in by the Taff Vale Railway and Great Western Railway... . Also called Summit or Beacons Tunnel. Highest rail tunnel in UK.	1863
Powys	Tal-y-llyn Tunnel	Railway	674 yards (616.3 m)	674 yd	Brecon and Merthyr Railway Brecon and Merthyr Railway The Brecon and Merthyr Junction Railway was one of several railways that served the industrial areas of South Wales and Monmouthshire. It ranked fifth amongst them in size, although hemmed in by the Taff Vale Railway and Great Western Railway...	1864
Powys	Ashford Tunnel	Canal	375 yards (342.9 m)	375 yd	Monmouthshire and Brecon Canal	1800
Powys	Rhayader Tunnel	Railway	290 yards (265.2 m)	290 yd	Mid Wales Railway. Closed 1963. Now a nature reserve	1864
Merthyr Tydfil CBC	Abernant / Merthyr	Railway	2497 yard	2497 yd	Mainly single track, curved at ends.	1853
Rhondda Cynon Taf	Garth or Walnut Tree Tunnel	Railway	450 yard	450 yd	Barry Railway Company Barry Railway Company The Barry Railway Company was a coal pit owner developed and owned railway company, formed to provide an alternate route for the sea export of coal mined in the South Wales valleys to the existing monopoly of the Taff Vale Railway and Cardiff Docks...  branch to Llanbradach. Double track. Closed 1963. Partly breached by Garth Quarry.	1905
Merthyr Tydfil CBC	Morlais, Merthyr Tydfil	Railway	1040 yard	1040 yd	Double track, curved at west end. 3 airshafts. Closed 1964. Linked LNWR London and North Western Railway The London and North Western Railway was a British railway company between 1846 and 1922. It was created by the merger of three companies – the Grand Junction Railway, the London and Birmingham Railway and the Manchester and Birmingham Railway...  with BMR Brecon Mountain Railway The Brecon Mountain Railway is a narrow gauge preserved railway that runs through the Brecon Beacons along the full length of the Pontsticill Reservoir... .	1874
Merthyr Tydfil CBC	Quaker's Yard Tunnel, Cefn-Glas Tunnel, Abercynon	Railway	703 yard	703 yd	Vale of Neath / West Midland Railway GWR. Closed to traffic in 1964.	1851
Rhondda Cynon Taf	Rhondda, Treherbert Rhondda and Swansea Bay Railway The Rhondda and Swansea Bay Railway connected the coal mines of the Rhondda Valley to the Swansea Bay ports.Connecting with the Taff Vale Railway at Treherbert, it had branches to Aberavon and Port Talbot docks. It was later extended to Swansea and a branch to Neath was added, bringing the total...	Railway	3443 yard	3443 yd	Single track. Longest tunnel in Wales	1890
Rhondda Cynon Taf	Tinworks, Treforest	Water	150 yards (137.2 m)	150 yd	Mill race "feeder" for Crawshays Tinworks. Tunnel made when embankment was constructed	1907
Rhondda Cynon Taf	Treforest	Railway	1373 yards (1,255.5 m)	1373 yd	Barry Railway Company Barry Railway Company The Barry Railway Company was a coal pit owner developed and owned railway company, formed to provide an alternate route for the sea export of coal mined in the South Wales valleys to the existing monopoly of the Taff Vale Railway and Cardiff Docks...	1889
Rhondda Cynon Taf	Tongwynlais	Railway	180 yards (164.6 m)	180 yd	Cardiff Railway Cardiff Railway The Cardiff Railway came into being from the need to service Bute Docks, so as to provide facilities for the traffic to and from the Docks. The railway was only 11 miles in length, a fact which belied its importance, since it provided both the Taff Vale Railway and the Rhymney Railway, inter alia,...  through the Taff's Well gap. Closed 1938. Removed in building A470 road.	1907
Swansea	Llangyfelfach Tunnel	Railway	1952 yards (1,784.9 m)	1952 yd	Active freight-only line on Swansea District Line Swansea District Line The Swansea District Line is a section of line running through the northern part of Swansea, and is used for freight transportation, and minimal passenger transport. It was built by the Great Western Railway in 1912 to provide a faster and less steeply graded route between London and Fishguard, in...	1912
Swansea	Peniel Green Tunnel (Lonlas)	Railway	924 yards (844.9 m)	924 yd	Active freight-only line on Swansea District Line Swansea District Line The Swansea District Line is a section of line running through the northern part of Swansea, and is used for freight transportation, and minimal passenger transport. It was built by the Great Western Railway in 1912 to provide a faster and less steeply graded route between London and Fishguard, in...	1912
Vale of Glamorgan	Wenvoe Tunnel Barry Railway Company The Barry Railway Company was a coal pit owner developed and owned railway company, formed to provide an alternate route for the sea export of coal mined in the South Wales valleys to the existing monopoly of the Taff Vale Railway and Cardiff Docks...	Railway	1867 yard	1867 yd	Barry Railway. Closed 1964 http://www.cardiffrail.co.uk/Wenvoe-tunnel	1898
Wrexham	Chirk Tunnel Chirk Tunnel Chirk Tunnel is a canal tunnel near Chirk, Wales.It lies on the Llangollen Canal, immediately northwards of the Chirk Aqueduct. It is long and has a complete towpath inside. The tunnel is designed for a single standard narrowboat, so passing is not possible...	Canal	420	459 yd	First in UK to have a towpath	1902

Scotland

County	Tunnel	Type	Length (Metres)	Length (Imperial)	Construction method / Notes	Date of opening
Dundee	Marketgait Tunnel	Road	250 yard	approx 250 yd	Cut and cover
Midlothian	Broomieknowe Tunnel	Railway	393	430yd	Closed 1951	1877
Glasgow	Clyde Tunnel Clyde Tunnel The Clyde Tunnel is a crossing beneath the River Clyde in Glasgow, Scotland. Two parallel tunnel tubes connect the districts of Whiteinch to the north and Govan to the south in the west of the city.-History:...	Road	762	762 metres (833.3 yd)		1964
Glasgow	M8 Motorway, Charing Cross.	Road		Cut and cover, short sections
Glasgow	Glasgow Subway Glasgow Subway The Glasgow Subway is an underground metro line in Glasgow, Scotland. Opened on 14 December 1896, it is the third-oldest underground metro system in the world after the London Underground and the Budapest Metro. Formerly a cable railway, the Subway was later electrified, but its twin circular lines...	Railway
Scottish Borders	Whitrope Tunnel Whitrope Tunnel The Whitrope Tunnel is a disused railway tunnel in the Scottish Borders, situated south of Hawick on the Waverley Route, near Whitrope. With a length of , it is the fourth longest tunnel in Scotland. The tunnel is on the Hawick to Carlisle part of the line, opened in the 1860s by the North...	Railway	1208 yard	1208	Closed 1969	1862
Scottish Borders	Penmanshiel Tunnel Penmanshiel Tunnel Penmanshiel Tunnel is a now-disused railway tunnel near Grantshouse, Berwickshire, in the Scottish Borders region of Scotland. It was formerly used as part of the East Coast Main Line between Berwick-upon-Tweed and Dunbar....	Railway	267 yard	267
Scottish Highlands	Nevis Tunnel Lochaber hydroelectric scheme The Lochaber hydroelectric scheme was a hydroelectric power generation project constructed in the Lochaber area of the western Scottish Highlands after the First World War. Like its predecessor at Kinlochleven, it was intended to provide electricity for aluminium production, this time at Fort...	Water	24,000	15 miles	hydroelectric scheme
Stirling	A9, City Centre Tunnel	Road			Cut and cover
Edinburgh	Scotland Street Tunnel	Railway	1000 yard	1000		1847
Edinburgh	Bowshank Tunnel	Railway	247 yard	247
Edinburgh	Innocent Tunnel, also St Leonard's Tunnel	Railway	566 yard	566	Edinburgh and Dalkeith Railway Edinburgh and Dalkeith Railway The Edinburgh and Dalkeith Railway, also called the Innocent Railway, was Edinburgh's first railway. It carried coal from the mines in Lothian to its city centre terminus at St Leonards... . Closed 1968. Now a footpath and cyclepath.	1831
Glasgow	Kelvingrove Tunnel	Railway	950 yard	950	Glasgow Central Railway Glasgow Central Railway The Glasgow Central Railway was a railway that ran from Maryhill in the north west of Glasgow through the West End and City Centre to Rutherglen and Newton to the south east of the city.- Early days :... . Closed 1964	1896
Glasgow	Glasgow Harbour Tunnel	Vehicle and pedestrian	233 yard	233	3 bores. Vehicles hoisted to tunnel level. Closed 1987	1895

Northern Ireland

County	Tunnel	Type	Length (Metres)	Length (Imperial)	Construction method / Notes	Date of opening
Antrim	Castlerock	Rail	668 yard	668 yd	Brick	1845 - 1853
Antrim	Downhill	Rail	307 yard	307 yd		1845 - 1846