List of tunnels in the United Kingdom

This is a list of road, railway, waterway, and other tunnels in the United Kingdom.

Downhill Railway Tunnels near Castlerock on the NIR network.

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 m) in length or longer.

A tunnel may be for pedestrians or cyclists, for general road traffic, for motor vehicles only, for rail traffic, or for a canal. Some are aqueducts, constructed purely for carrying water—for consumption, for hydroelectric purposes or as sewers—while others carry other services such as telecommunications cables. There are even tunnels designed as wildlife crossings for European badgers and other endangered species.

The longest tunnel in the United Kingdom is the Northern line at 27,800 metres (91,200 ft). This will be superseded in 2021 by the 37,600-metre (123,400 ft) Woodsmith Mine Tunnel in North Yorkshire that will transport polyhalite from North Yorkshire to a port on Teesside.[1] Standedge Tunnel at 5,029 metres (3.125 mi) is the longest canal tunnel in the United Kingdom.

England

County	Tunnel	Type	Length (m)	Length (yd)	Construction method / Notes	Date of opening	Coordinates
Bedfordshire	Ampthill Tunnel	Railway	654	715	4 tracks in 2 bores	1859	52.03361°N 0.51333°W
Bedfordshire	Linslade Tunnel	Railway	249	272	4 tracks in 3 bores	1837, 1859, 1876	51.92544°N 0.67611°W
Bedfordshire	Old Warden Tunnel	Railway	807	883	Brick construction, Carried the Bedford to Hitchin line	1853	52.08835°N 0.37581°W
Bedfordshire	Wymington Tunnel	Railway	1,690	1,850	Also known as Sharnbrook Tunnel, allows freight trains to avoid the gradients over Sharnbrook summit (elevation 315 feet)	1859	52.25166°N 0.58266°W
Bristol	Clifton Down Tunnel	Railway	1,601	1,751	Part of the Clifton Extension Railway built jointly by the MR and GWR	1874	51.46720°N 2.62531°W
Buckinghamshire	Brill Tunnel	Railway	175	191	Great Western Railway, now Chiltern Main Line	1910
Buckinghamshire	Saunderton Tunnel	Railway	76	83	Single track (southbound) on Chiltern Main Line, allowed heavily-loaded coal trains from the Midlands to London to avoid the gradient over Saunderton summit	1901
Buckinghamshire	Whitehouse Tunnel	Railway	322	352	Chiltern Main Line	1905
Cambridgeshire	Wansford Tunnel	Railway	563	616	Now on preserved Nene Valley Railway	1847	52.56518°N 0.39956°W
Cheshire	Disley Tunnel	Railway	3,535	3,865	Bored tunnel[2]	1901	53.37172°N 2.08576°W
Cheshire	Preston Brook Tunnel	Canal	1,133	1,239		1775
Cheshire	Prestbury Tunnel	Railway	250	273	[3] Brick[4]	1845	53.29551°N 2.14447°W
Cheshire	Sutton Tunnel	Railway	1,724	1,885	[5] See also Sutton Tunnel railway accident	1848	53.32020°N 2.67790°W
Cornwall	Saltash Tunnel	Road	410	448	Carries the A38	1988	50.41161°N 4.21496°W
Cornwall	Brownqueen Tunnel	Railway	80	88		1859	50.43466°N 4.68092°W
Cornwall	Toldish Tunnel	Railway	460	500	Used by horse-drawn trams, closed 1874	1849	50.40311°N 4.92533°W
Cornwall	Trelill Tunnel	Railway	304	333	Disused (closed 1966)	1895	50.56886°N 4.76268°W
Cornwall	Shillingham Tunnel	Railway	412	451	aka Wivelscombe	1908	50.39539°N 4.26427°W
Cornwall	Treverrin Tunnel	Railway	516	564		1859	50.38281°N 4.67616°W
Cornwall	Polperrow Tunnel	Railway	348	381[6]		1859	50.28615°N 5.01136°W
Cornwall	Buckshead Tunnel	Railway	290	320[7]		1859	50.27936°N 5.04071°W
Cornwall	Sparnick Tunnel	Railway	449	491		1863	50.24026°N 5.09462°W
Cornwall	Pinnock Tunnel	Railway	1,073	1,173[8]	Now converted to private road	1874	50.35125°N 4.66219°W
Cumbria	Whitehaven Tunnel	Railway	1,219	1,333	Single track, bore widened 1958	1852	54.45200°N 3.58200°W
Derbyshire	Alfreton Tunnel	Railway	770	840		1862	53.09200°N 1.36136°W
Derbyshire	Ashbourne Tunnel	Railway	350	383	Now a cycleway	1899	53.01571°N 1.73483°W
Derbyshire	Ashwood Dale Tunnel	Railway	91	100		1863	53.25252°N 1.82034°W
Derbyshire	Barmoor Clough Tunnel	Railway	101	111		1863	53.31590°N 1.89683°W
Derbyshire	Bolsover Tunnel	Railway	2,399	2,624	Infilled with coal waste 1966-7	1897	53.21662°N 1.27669°W
Derbyshire	Bradway Tunnel	Railway	1,853	2,026		1870	53.31721°N 1.49813°W
Derbyshire	Breadsall Tunnel (also Morley)	Railway	218	238		1878	52.95597°N 1.40889°W
Derbyshire	Burbage Tunnel	Railway	530	580[9]		1830	53.26168°N 1.95300°W
Derbyshire	Butterley Tunnel	Canal	2,712	2,966	Disused canal	1794	53.05936°N 1.39487°W
Derbyshire	Chee Tor Tunnel (1)	Railway	390	430[9]		1863	53.25584°N 1.81063°W
Derbyshire	Chee Tor Tunnel (2)	Railway	86	94	[9]	1863	53.25468°N 1.81452°W
Derbyshire	Clay Cross Tunnel	Railway	1,631	1,784	Brick[10]	1839	53.16790°N 1.41363°W
Derbyshire	Cowburn Tunnel	Railway	3,385	3,702		1892	53.35200°N 1.86680°W
Derbyshire	Cressbrook Tunnel	Railway	431	471	[9]	1863	53.24949°N 1.74688°W
Derbyshire	Dove Holes Tunnel	Railway	2,729	2,984	Closed to passenger traffic in 1967	1865	53.30293°N 1.88853°W
Derbyshire	Duckmanton Tunnel	Railway	458	501	Closed to passenger traffic in 1951, closed completely 1957, infilled 1970s	1897	53°13′44.2″N 1°22′1.3″W
Derbyshire	Duffield Tunnel	Railway	48	52		1867
Derbyshire	Eaves Tunnel	Railway	394	431		1863
Derbyshire	Great Rocks Tunnel	Railway	147	161		1863
Derbyshire	Gregory Tunnel	Canal	69	76		1794
Derbyshire	Haddon Tunnel	Railway	967	1,058	Constructed with cut and cover methods, closed in 1967	1863	53.19644°N 1.65207°W
Derbyshire	Hag Tunnel	Canal	85	93	Disused canal[11]	1794
Derbyshire	Headstone Tunnel	Railway	487	533		1863
Derbyshire	High Tor Tunnel 1	Railway	294	321	[12]	1849
Derbyshire	High Tor Tunnel 1A	Railway	53	58		1849
Derbyshire	High Tor Tunnel 2	Railway	346	378		1849
Derbyshire	Holt Lane Tunnel	Railway	115	126		1849
Derbyshire	Hopton Tunnel	Railway	103	113		1830
Derbyshire	Hindlow Tunnel	Railway	470	514	Now a cycleway	1832
Derbyshire	Hollingwood Common Tunnel	Canal	2,820	3,080	Disused coalmine canal joining with Chesterfield Canal[13]	1777
Derbyshire	Lea Wood Tunnel	Railway	288	315		1849
Derbyshire	Litton Tunnel	Railway	472	516		1863	53.25204°N 1.75534°W
Derbyshire	Mickleover Tunnel	Railway	424	464		1878
Derbyshire	Milford Tunnel	Railway	782	855		1839	53.00177°N 1.48672°W
Derbyshire	Morley Tunnel	Railway	218	238		1878
Derbyshire	Newhaven Tunnel	Railway	47	51		1830
Derbyshire	New Mills Tunnel	Railway	112	123		1867
Derbyshire	Newtown Tunnel	Railway	82	90		1902
Derbyshire	Norwood Tunnel	Canal	2,637	2,884	Collapsed 1907	1775	W. 53.33253°N 1.28921°W, C. 53.33501°N 1.26971°W, E. 53.33744°N 1.25022°W
Derbyshire	Norwood End Tunnel No. 10	Railway	270[14]	300	Parallel to Norwood Tunnel	1878
Derbyshire	Peak Forest Tunnel	Railway	27	29		1863
Derbyshire	Pic Tor Tunnel	Railway	175	191		1863
Derbyshire	Redhill Tunnel 1	Railway	141	154		1839
Derbyshire	Redhill Tunnel 2	Railway	160	170		1839
Derbyshire	Rowthorn Tunnel	Railway	849	929	Closed 1930	1890
Derbyshire	Rusher Cutting Tunnel	Railway	111	121	[15]	1863
Derbyshire	Shirland Tunnel	Railway	173	189
Derbyshire	Spinkhill Tunnel	Railway	458	501	Closed 9 January 1967 and subsequently lifted	1897
Derbyshire	Stodhart Tunnel	Tramway	92	101		1796
Derbyshire	Toadmoor Tunnel	Railway	118	129		1839
Derbyshire & Yorkshire – South	Totley Tunnel	Railway	5,700	6,230		1892
Derbyshire	Whatstandwell Tunnel	Railway	136	149		1849
Derbyshire	Whitwell Tunnel	Railway	497	544
Derbyshire	Willersley Tunnel	Railway	699	764		1849
Derbyshire	Wingfield Tunnel	Railway	239	261		1839
Devon	Aller Tunnel	Railway	270	295	Built using 110 concrete bridge beams, A380 passes overhead	2014
Devon	Dainton Tunnel	Railway	266	291		1847
Devon	Devonport Leat Tunnel	Leat	500	547		1790s
Devon	Marley Tunnel	Railway	795	869
Devon	Parson's Tunnel	Railway	554	606	Known for the Legend of the Parson and Clerk
Dorset	Beaminster Tunnel	Road	105	115	Carries the A3066, brick lined construction, one of the oldest road tunnels still in use	1832
Dorset	Buckhorn Weston Tunnel	Railway	678	742
Dorset	Bincombe Tunnel (North)	Railway	749	819
Dorset	Bincombe Tunnel (South)	Railway	44	48
Dorset	Evershot Tunnel	Railway	282	308
Dorset	Frampton Tunnel	Railway	595	651
Dorset	Middlebere Plateway Tunnels	Railway			Built in two stages	1807, 1825[16]
Dorset	Poundbury Tunnel	Railway	244	267
East Sussex	Cuilfail Tunnel	Road	430	470	Carries the A26, built to ease traffic congestion in Lewes	1980
East Sussex	Argos Hill Tunnel	Railway	64	70	Closed 1965	1880
East Sussex	Bopeep Tunnel	Railway	1,205	1,318		1846
East Sussex	Crowborough Tunnel	Railway	935	1,022		1868
East Sussex	Culver Tunnel	Railway	227	289	Closed 1958	1882
East Sussex	Falmer Tunnel	Railway	450	490		1846
East Sussex	Hastings Tunnel	Railway	700	770		1846
East Sussex	Heathfield Tunnel	Railway	242	265	Closed 1965, now cycleway & footpath	1880
East Sussex	Kingston Tunnel	Railway	98	107		1846
East Sussex	Lewes Tunnel	Railway	362	396		1847
East Sussex	Mayfield Tunnel	Railway	83	91	Closed 1965 now infilled	1880
East Sussex	Mountfield Tunnel	Railway	481	526	Reduced from double track to single track in the 1970s	1851
East Sussex	Mount Pleasant Tunnel	Railway	131	143		1851
East Sussex	Patcham Tunnel	Railway	446	488		1841
East Sussex	Wadhurst Tunnel	Railway	1,102	1,205	Reduced from double track to single track in 1985	1851
Essex	Audley End Tunnel	Railway	417	456	Double track[17][18]	1845
Essex & Kent	Dartford West Tunnel	Road	1,436	1,570	Carries northbound traffic on the A282 as part of the Dartford Crossing, original tunnel	1963
Essex & Kent	Dartford East Tunnel	Road	1,436	1,570	Carries northbound traffic on the A282 as part of the Dartford Crossing, carried southbound traffic until 1991	1980
Essex	Dartford Cable Tunnel	Electricity cables			Upriver from Dartford Road Tunnels, carrying 400kV cables	2004
Essex	Bell Common Tunnel	Road	470	514	Cut-and-cover tunnel on the M25	1984
Essex	Littlebury Tunnel	Railway	372	407	Two tracks, south portal is Grade 2 listed[17]	1845
Essex	Maldon West Tunnel	Railway	60	66	Closed 1939, now filled-in	1888
Essex	Stansted Airport Tunnel	Railway	1,778	1,944	Single track[17]	1991
Essex & Kent	Thames Cable Tunnel	Electricity cables	1,675	1,832	Carries two 400kV electricity circuits[19][20]	1970
Gloucestershire	Chipping Sodbury Tunnel	Railway	4,064	4,444
Gloucestershire	Patchway Old Tunnel	Railway	1,140[21]	1,246	In use for westbound trains
Gloucestershire	Patchway New Tunnel	Railway	1,609	1,760	In use for eastbound trains	1886
Gloucestershire	Sapperton Canal Tunnel	Canal	1,873	2,048		1789
Gloucestershire	Larger Sapperton Tunnel	Railway	1,704	1,864	On the Golden Valley Line
Gloucestershire	Smaller Sapperton Tunnel	Railway	323	353	On the Golden Valley Line
Gloucestershire	Severn Tunnel (1810)	Tramroad	126	138	Abandoned, uncompleted in 1812 after flooding		51.78770°N 2.44598°W
Gloucestershire & Monmouthshire	Severn Tunnel	Railway	7,012	7,668	Longest mainline tunnel in the UK until 2007 when tunnels on High Speed 1 opened	1886
Gloucestershire	Severn-Wye Cable Tunnel	Electricity cables	3,600		Carries two 400kV electricity circuits	1973	51.608459°N 2.615454°W
Gloucestershire	Micheldean Tunnel	Railway	715	782	Portals bricked up
Greater Manchester	Clifton Hall Tunnel	Railway	1,187	1,298		1850
Greater Manchester	Disley Tunnel	Railway	3,535	3,866		1902
Greater Manchester	Farnworth Tunnel	Railway	270	295	Built by the Manchester and Bolton Railway[22]	1832
Greater Manchester	Guardian Exchange	Telephone	1,300	1,422	Concrete and brick[23]	1954
Greater Manchester & Yorkshire – West	Standedge Tunnels	Canal	5,029	5,500	Disused 1945, reopened 2001, longest and highest canal tunnel in UK on Huddersfield Narrow Canal	1811
Greater Manchester & Yorkshire – West	Standedge Tunnels (Central Tunnel)	Railway	4,880	5,337	First of the three rail tunnels to be opened, used for emergency access	1848
Greater Manchester & Yorkshire – West	Standedge Tunnels (South Tunnel)	Railway	4,880	5,337	Second tunnel, single track	1871
Greater Manchester & Yorkshire – West	Standedge Tunnels (live tunnel)	Railway	4,883	5,340	Third tunnel, double track, in use	1894
Greater Manchester	Summit Tunnel	Railway	2,638	2,885		1841
Hampshire	Fareham Tunnel No. 1	Railway	134	147	Also known as Funtley No.1, M27 passes overhead
Hampshire	Fareham Tunnel No. 2	Railway	506	553	Also known as Funtley No.2
Hampshire	Greywell Tunnel	Canal	1,125	1,230	Brick construction
Hampshire	Micheldever Tunnel	Railway	181	198	[24] Also known as Litchfield Tunnel	1840[25]
Hampshire	Midhurst Tunnel	Railway	252	276
Hampshire	Popham No. 1 Tunnel	Railway	242	265
Hampshire	Popham No. 2 Tunnel	Railway	182	199
Hampshire	Privett Tunnel	Railway	967	1,058	Closed 1955	1903
Hampshire	Southampton Tunnel	Railway	483	528[24]	Allows the South Western main line to pass under the Civic Centre in Southampton	1847
Hampshire	Wallers' Ash Tunnel	Railway	458	501
Hampshire	Winchester Tunnel	Railway	422	461	Also known as St Giles or Chesil Tunnel
Hampshire	Fawley Tunnel	Electricity cables	3,200		Two 400 kV electricity circuits	1965	50.826°N 1.314°W
Hertfordshire & London	Elstree to St. John's Wood Cable Tunnel	Electricity cables	19,800	21,653	3-metre diameter, forced air cooling, 7 ventilation shafts, carries one 400kV circuit, provision for second circuit, battery powered overhead monorail system for access[26]	2005
Hertfordshire	Hatfield Tunnel	Road	1,147	1,531	Cut-and-cover tunnel on the A1(M) between J3 and J4	1986
Hertfordshire	Holmesdale Tunnel	Road	600	656	Cut-and-cover tunnel on the M25 between J25 and J26	1984
Hertfordshire	Northchurch Tunnels	Railway	319	349	Bores consist of Down and Up fast (double track), Down slow (single track), Up slow (single track)	1838
Hertfordshire	Ponsbourne Tunnel	Railway	2,454	2,684	Part of the Hertford Loop Line, it was the last tunnel constructed using traditional means	1918
Hertfordshire	Potters Bar Tunnel	Railway	1,110	1,214	Bores consist of Down slow & fast, Up slow & fast	1849	51.6854°N 0.1849°W
Hertfordshire	Welwyn North Tunnel	Railway	956	1,046	Welwyn North Tunnel was the scene of a major accident in 1866	1850
Hertfordshire	Welwyn South Tunnel	Railway	408	446		1850
Hertfordshire	Weston Hills Tunnel	Road	230	250	Cut-and-cover tunnel on the A505[27]	2006
Isle of Wight	Ryde Tunnel	Railway	358	391
Isle of Wight	Ventnor Tunnel	Railway	1,201	1,313	Closed 1966	1866
Kent & Pas-de-Calais (France)	Channel Tunnel	Railway	50,459	55,183	Consists of two single track railway tunnels and one service tunnel, 26,988 m of the tunnel is on the British side of the UK/France border	1994
Kent	Medway Tunnel	Road	240	260	Carries A289	1996
Kent	Ramsgate Tunnel	Road	800	875	Carries A299, also known as Pegwell Tunnel	2000
Kent	Roundhill Tunnel	Road	380	416	Carries A20	1993
Kent	Abbotscliffe Tunnel	Railway	1,800	1,969	Double track[28]	1844
Kent	Badgers Oak Tunnel	Railway	163	178	Closed 1961	1893
Kent	Bourne Park Tunnel	Railway	370	400	Used to hide a giant railway borne artillery piece in World War Two,[29] closed 16 June 1947	1887
Kent	Charlton Tunnel	Railway	138	154
Kent	Chatham Tunnel	Railway	272	297	Double track
Kent	Chelsfield Tunnel	Railway	545	597	Double track[30]	1868	51.3487°N 0.1178°E
Kent	Dover Harbour Tunnel	Railway	625	684		1861
Kent	Edenbridge Tunnel	Railway	180	197		1888
Kent	Eynsford Tunnel	Railway	757	828		1862
Kent	Fort Pitt Tunnel	Railway	391	428	Double track
Kent	Golgotha Tunnel	Railway	436	477	Single track but partly constructed for double track	1911
Kent	Greenhithe Tunnel	Railway	228	253		1849
Kent	Grove Tunnel	Railway			Closed on 6 July 1985 with the rest of the Tunbridge Wells West branch, single track
Kent	Grove Hill Tunnel	Railway	262	287	On the Hastings line	1851
Kent	Guston Tunnel	Railway	1,287	1,408		1881
Kent	Hayne Tunnel	Railway	86	94	Closed 1951, since closure has been flooded	1874
Kent	Higham and Strood Tunnel	Railway	3,595	3,931	Built between 1819 and 1824 for the Thames and Medway Canal, single track railway laid on the tow-path in 1845, was soon doubled by infilling the canal, 100-yard air vent cut in the middle	1824
Kent	Horsmonden Tunnel	Railway	79	86	Closed 1961	1892
Kent	Little Browns Tunnel	Railway	111	121		1888
Kent	Lydden Tunnel	Railway	2,166	2,369		1861
Kent	Mark Beech Tunnel	Railway	1,226	1,341		1888
Kent	Martello Tunnel	Railway	500	547	Double track[28]	1844
Kent	North Downs Tunnel	Railway	3,200	3,500	Under Blue Bell Hill, tunnel is to UIC GB gauge on High Speed 1, double track but due to air pressure of opposing trains at high speeds trains are scheduled not to pass at the line speed of 300 km/h.[31]	2001
Kent	Polhill Tunnel	Railway	2,387	2,610	Double track	1868	51.3250°N 0.1626°E
Kent	Priory Tunnel	Railway	142	155		1861
Kent	Ramsgate Harbour Tunnel	Railway	1,028	1,124	Closed 1926	1863
Kent	River Medway Cable Tunnels	Electricity cables	1,700	1,860	Twin 2.54 m diameter tunnels, Isle of Grain to Chetney Marshes, each carries a 400kV circuit[32]	1976
Kent	Saltwood Tunnel	Railway	872	954		1843
Kent	Sandling Tunnel	Railway	91	99		1843
Kent	Sevenoaks Tunnel	Railway	3,156	3,520	Double track	1868
Kent	Shakespeare Tunnel	Railway	1,260	1,387	Two individual single bore tunnels[28][33]	1844
Kent	Shepherd's Well Tunnel	Railway	2,138	2,376
Kent	Somerhill Tunnel	Railway	370	410	Originally double track but reduced to single track in 1985	1845
Kent	Strawberry Hill Tunnel	Railway	262	286	Originally double track but reduced to single track in 1985	1851
Kent	Tyler Hill Tunnel	Railway	757	828	Underneath the main site of the University of Kent,[34] the line was closed in 1953, part of the tunnel collapsed in July 1974	1830
Kent	Week Street Tunnel	Railway	90	98	Twin track	1884
Kent	Wells Tunnel	Railway	753	823	Twin track	1846
Kent	Wheeler Street Tunnel	Railway	327	358	Twin track	1884
Lancashire	Blackburn Tunnel	Railway	398	435	[35]
Lancashire	Foulridge Tunnel	Canal	1,487	1,626	[36]
Lancashire	Gannow Tunnel	Canal	509	557	[36]
Lancashire	Gisburn Tunnel	Railway	144	157
Lancashire	Haslingden (North Hag) Tunnel	Railway	134	146	[37] Closed 1966	1848
Lancashire	Holme Tunnel	Railway	242	265
Lancashire	Melling Tunnel	Railway	1,120	1,230	[38]
Lancashire	Rishton Tunnel	Railway	62	68	[35]
Lancashire	Sough Tunnel	Railway	1,843	2,015	[35]
Lancashire	Upholland Tunnel	Railway	877	959
Lancashire	Wilpshire Tunnel	Railway	297	325	[35]
Lancashire	Thrutch Tunnel	Railway	541	592	1 track top section brick lined lower section stone, closed 1966	1880	53.691300°N 2.248735°W
Lancashire	Newchurch No.1 Tunnel	Railway	148	162	1 track top section brick lined lower section stone, closed 1966	1852	53.691400°N 2.248659°W
Lancashire	Newchurch No.2 Tunnel	Railway	270	290	1 track top section brick lined lower section stone, closed 1966	1852	53.690653°N 2.244961°W
Leicestershire	Ashby de la Zouch Tunnel	Railway	282	308	Also known as Old Parks or Ashby Tunnel
Leicestershire	Clawson Tunnel	Railway	763	834	Also known as Hose Tunnel
Leicestershire	Husbands Bosworth Tunnel	Canal	1,066	1,166		1813
Leicestershire	Saddington Tunnel	Canal	805	880		1797
Leicestershire	Glenfield Tunnel	Railway	1,633	1786	Closed 1966	1832
Lincolnshire	Kirton-in-Lindsey Tunnel	Railway	1,200	1,312
Lincolnshire	Stamford Tunnel	Railway	312	341
Lincolnshire	Stoke Tunnel	Railway	800	880
London	Northern line (Morden to East Finchley via Bank)	Railway	27,800	30,402	Deep level 'tube' lines constructed between 1886 and 1939	1890-1939
London	Piccadilly line (Bounds Green to Barons Court)	Railway	19,610	21,446	Deep level 'tube' lines constructed between 1902 and 1932	1906–32
London	Piccadilly line (Hounslow Central to Heathrow Terminal 5)	Railway	8,760	9,580	Deep Level tunnel beyond Hatton Cross	1975-2008
London	Victoria line (Brixton to Walthamstow Central)	Railway	22,040	24,103	Deep level 'tube' lines constructed between 1962 and 1972	1968–72
London	Central line (Stratford to White City)	Railway	17,390	19,018	Deep level 'tube' lines constructed between 1896 and 1940	1900–46
London	Northern line (Kennington to Golders Green via Charing Cross)	Railway	11,940	13,058	Deep level 'tube' lines constructed between 1902 and 1926	1907–26
London	Bakerloo line (Elephant & Castle to Queen's Park)	Railway	10,900	11,920	Deep level 'tube' lines constructed between 1898 and 1915	1906–15
London	Waterloo & City line (Waterloo to Bank)	Railway	2,226	2,434	Deep level 'tube' lines constructed between 1894 and 1898	1898
London	Barnet Tunnel	Railway	553	607	3 bores: Down slow / Centre / Up Slow	1849	51.6295°N 0.1582°W
London	Belsize Fast Lines Tunnel	Railway	1,619	1,771	Midland Railway, now Midland Main Line[17]	1868[18]
London	Belsize Slow Lines Tunnel	Railway	1,707	1,867	Midland Railway, now Midland Main Line/Thameslink[17]	1884[18]
London	Bishopsgate Tunnel	Railway	573	627	Great Eastern Railway, Down/Up Suburban Lines from/to Liverpool Street Station
London	Blackwall Tunnel (Western bore)	Road	1,350[39]	1,476	Built using tunnelling shields, one of the oldest road tunnels still in use, carries northbound traffic on the A102	1897
London	Blackwall Tunnel (Eastern bore)	Road	1,174[39]	1,284	Newer bore, carries southbound traffic on the A102	1967
London	Camden Road Tunnels	Railway	288	315	Midland Railway. Down/Up Fast, Down/Up Slow, Down/Up Moorgate the latter is two tunnels of 205 and 66 yards	1867
London	Canal Tunnels	Railway	688	628	2 bores: both bidirectional. Up Line 688y/628m, Down Line 723y/681m	2016	51.5400°N 0.1236°W
London	Canonbury Tunnel	Railway	498	545	Great Northern Railway, Now single track freight line	1874
London	Clapton Tunnel	Railway	260	284	Great Eastern Railway	1872
London	Copenhagen Tunnels	Railway	543	594	Great Northern Railway. West tunnel Up & Down Slow, Central tunnel Up & Down Fast, East Tunnel disused since 1977	1877, 1850, 1886
London	Crossrail Royal Oak to Farringdon	Railway	6,400	6,999	Twin tunnels 6.2m in diameter	Due to open 2020/2021
London	Crossrail Limmo Peninsula to Farringdon	Railway	8,300	9,077	Twin tunnels 6.2m in diameter	Due to open 2020/2021
London	Crossrail Pudding Mill Lane to Stepney Green	Railway	2,700	2,953	Twin tunnels 6.2m in diameter	Due to open 2020/2021
London	Crossrail Plumstead to North Woolwich (Thames tunnel section)	Railway	2,600	2,843	Twin tunnels 6.2m in diameter	Due to open 2020/2021
London	Crossrail Limmo Peninsula (Royal Docks) to Victoria Dock portal	Railway	900	984	Twin tunnels 6.2m in diameter	Due to open 2020/2021
London	Crouch Hill Tunnel	Railway	82	90	alias Crown Hill tunnel, Tottenham & Hampstead Junction Railway[17]	1868[18]
London	East India Dock Link	Road	350	383		1993
London	Fore Street Tunnel	Road			A406 North Circular Road under Edmonton town centre, refurbished 2014	1998
London	Gas Works Tunnels	Railway	483	528	Great Northern Railway. West tunnel Slow Lines, Middle tunnel Fast Lines, East tunnel disused since 1977[17][18]	1892, 1852, 1878
London	Greenwich foot tunnel	Pedestrian	371	406	Runs beneath River Thames; being refurbished until 2014	1902
London	Hadley Wood North Tunnels	Railway	212	232
London	Hadley Wood South Tunnels	Railway	351	384
London	Islington Tunnel	Canal	878	976	On Regent's Canal	1818
London	Maida Hill Tunnel	Canal	251	272	On Regent's Canal	1816
London	Eyre's tunnel	Canal	48	52	On Regent's Canal	1816
London	Bankside power station cooling water discharge tunnel	River water	366	400	3 metres diameter, 10 metres below river Thames, terminating on the north bank of the river bed adjacent to St Paul's railway bridge, disused since 1981, now sealed	1952
London	Battersea power station tunnels	Electricity cables, steam & hot water pipes			3 tunnels, 2 carrying cables under the Thames to either side of Chelsea bridge, third carrying steam and hot water pipes for a district heating system for the Churchill Gardens estate
London	Hackney Downs or Queen's Road Tunnel	Railway	407	445	Great Eastern Railway	1872
London	Hampstead Heath Tunnel	Railway	1,066	1,166	Hampstead Junction Railway. Now North London Line	1860
London	Hoe Street Tunnel	Railway	65	71	Great Eastern Railway	1870
London	Kingsway Exchange	Telephone			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	Tramway			Constructed using cut-and-cover method. Abandoned in 1952 with the rest of the tram network, now partially used as the Strand Underpass	1906
London	Limehouse Link tunnel	Road	1,800	1,969	Constructed with cut-and-cover methods, carries the A1203	1993
London	London Deep Level Shelters	Air Raid Shelter	370	405	Eight built in total	1942
London	Hampstead Tunnel	Railway	632	694	Great Central Railway, now Chiltern Main Line	1899
London	Heathrow link road	Road			Part of the airport link road which tunnels from M4/A4 roads to terminals 1,2 and 3	1955
London	Heathrow ART	Road	1,420	1,553	Links the airside roads at terminals 1,2 & 3 with the new terminal 5. Only open to vehicles with security clearance	2005	W. 51.46834°N 0.49059°W, E. 51.46954°N 0.45507°W
London	Heathrow Cargo Tunnel	Road	885	968	Links terminals 1,2 & 3 with terminal 4	1968	51.46426°N 0.45555°W
London	Kensal Green Tunnels	Railway	293	320	London and Birmingham Railway: Down/Up Fast, Down/Up Slow.London North Western Railway: Down/Up DC Electric constructed 1915	1837
London	London Post Office Railway	Railway	10,500	11,483	Narrow gauge railway built to transport mail between sorting offices. Now decommissioned but still kept in working order.[40]	1927
London	London Tunnel 1	Railway	7,564	8,272	Part of the High Speed 1 railway from Stratford to St Pancras	2004
London	London Tunnel 2	Railway	9,660	10,560	Part of the High Speed 1 railway from Dagenham to Stratford	2004
London	Primrose Hill Fast Tunnel	Railway	1,080	1,182	London North Western Railway[17]	1879[18]
London	Primrose Hill Slow Tunnel	Railway	1,070	1,170	London and Birmingham Railway[17]	1837[18]
London	Rotherhithe Tunnel	Road	1,481	1,619		1908[41]
London	Snow Hill tunnel	Railway				1866
London	St John's Wood Tunnel	Railway	1,469	1,606	Great Central Railway, now Chiltern Main Line	1899
London	South Hampstead Tunnel	Railway	1,328	1,452	London North Western Railway. Up tunnel is 1,264 yards (1,156 m)	1922
London	South Harrow Tunnel	Railway	187	204	Great Central Railway, now Chiltern Main Line	1905
London	Stoke Newington Tunnel	Railway	55	60	Great Eastern Railway	1872
London	Strand Underpass	Road	365	399	Formed from the disused Kingsway Tramway Subway	1964
London	Sydenham Hill (also Penge)	Railway	1,958	2,141	The tunnel was disliked by Queen Victoria, brick lining was made from clay extracted from the tunnel itself	1863
London	Thames Tunnel	Railway	396	433	Built by Marc Brunel and originally opened as a pedestrian link between Rotherhithe and Wapping, taken over by the East London Railway and now part of the London Overground	1843
London	Thames–Lea water main tunnel	Water	30,577	33,440	Water from the Thames at Sunbury to Chingford reservoirs	1959
London	Tottenham North Curve Tunnel No.1	Railway	146	160	Midland Railway[17]	1883[18]
London	Tottenham North Curve Tunnel No.2	Railway	64	70	Midland Railway	1883
London	Tottenham North Curve Tunnel No.3	Railway	94	103	Midland Railway	1883
London	Tower Subway	Pedestrian	411	450	Built using Tunnelling shields. Closed in 1898 due to the opening of the Tower Bridge. Now used for water mains only	1870
London	Wood Green Tunnel	Railway	645	705	3 bores: Down slow / Centre / Up Slow	1848	51.6050°N 0.1340°W
London	Woolwich foot tunnel	Pedestrian	498	545	Under River Thames	1912
Merseyside	Kingsway Tunnel	Road	2,483	2,715	Also called Wallasey Tunnel	1971
Merseyside	Mersey Railway	Railway	3,820	4,180	Length of tunnel under the river	1886–1892
Merseyside	Queensway Tunnel	Road	3,237	3,540		1934
Merseyside	Scholes Tunnel	Railway	73	80	South of Thatto Heath	1871
Merseyside	Victoria Tunnel & Waterloo Tunnel	Railway	3,254	3,559	The Victoria and Waterloo tunnels - 2,475 metres (2,707 yd) and 862 metres (943 yd) - form a single tunnel divided by an air shaft, and having different names on each side of the shaft	1849
Merseyside	Wapping Tunnel	Railway	2,030	2,220	Originally static steam engine haulage because of the steep gradient, then locomotive hauled. Closed on 15 May 1972	1829
Merseyside	Williamson Tunnels	Folly	3,000	3,281		1800–40
Norfolk	Aylsham Bypass Tunnel	Railway	166	182	On narrow gauge Bure Valley Railway	1990
Norfolk	Cromer Tunnel	Railway	56	61		1888
Northamptonshire	Blisworth Tunnel	Canal	2,794	3,056	Grand Union Canal	1805
Northamptonshire	Braunston Tunnel	Canal	1,887	2,064	Grand Union Canal	1796
Northamptonshire	Catesby Tunnel	Railway	2,740	2,997	Great Central Railway	1899
Northamptonshire	Corby Tunnel	Railway	1,760	1,920		1878
Northamptonshire	Crick Tunnel	Canal	1,397	1,528		1814
Northamptonshire	Hunsbury Hill Tunnel	Railway	1,053	1,152		1881
Northamptonshire	Kelmarsh Tunnel	Railway	294	322	Was single bore, but doubled. Now pedestrian	1859
Northamptonshire	Kilsby Tunnel	Railway	2,218	2,426		1838
Northamptonshire	Oxendon Tunnel	Railway	422	462	Was single bore, but doubled. Now pedestrian	1859
Northamptonshire	Stowe Hill tunnel	Railway	449	491	Single bore, twin tracks. West Coast Main Line	1838
Northumberland	Hillhead Tunnel	Railway	321	351	Single Bore, brick lined	1887	55.39217°N 1.83236°W
Nottinghamshire	Annesley Tunnel	Railway	915	1,001		1892
Nottinghamshire	Barnstone Tunnel	Railway	90	98		1899
Nottinghamshire	Ashwell Tunnel	Railway	64	70		1889
Nottinghamshire	Drakeholes Tunnel	Canal	141	154	[42]	1777
Nottinghamshire	Mapperley Tunnel	Railway	1,035	1,132		1875
Nottinghamshire	Park Tunnel	Horsedrawn carriages
Nottinghamshire	Redhill Tunnel
Nottinghamshire	Sherwood Tunnel	Railway	404	442		1889
Nottinghamshire	Sherwood Rise Tunnel	Railway	605	662		1899
Nottinghamshire	Sneinton Tunnel	Railway	117	128		1889
Nottinghamshire	Stanton Tunnel	Railway	1,220	1,330	Railway Test Track, Stanton on the Wolds	1879
Nottinghamshire	Thorneywood Tunnel	Railway	373	408		1889
Nottinghamshire	Victoria Street Tunnel	Railway	266	291	Also known as Weekday Cross Tunnel	1897
Nottinghamshire	Watnall Tunnel	Railway	245	268
Nottinghamshire	Mansfield Road Tunnel	Railway	1,087	1,189		1898[43]
Oxfordshire	Ardley Tunnel	Railway	1,056	1,155	Great Western Railway, now Chiltern Main Line	1910
Oxfordshire	Bodleian Library Tunnel	Library
Oxfordshire	Horspath or Wheatley Tunnel	Railway	479	524	Great Western Railway, closed 1963	1864
Oxfordshire	Wolvercot Tunnel	Railway	133	145	Buckinghamshire Railway	1850
Rutland	Glaston Tunnel	Railway	1,684	1,842		1878
Rutland	Manton Tunnel	Railway	685	749		1846
Rutland	Seaton Tunnel	Railway	188	206		1878
Rutland	Wing Tunnel	Railway	323	353		1878
Shropshire	Knowlesands Tunnel	Railway	40	44	Severn Valley Railway	1862
Shropshire	Oakengates Tunnel	Railway	430	471		1849
Somerset	Chilcompton Tunnel	Railway	59	64	Somerset and Dorset Joint Railway, north of Chilcompton - closed in 1966	1874
Somerset	Combe Down Tunnel	Railway	1,672	1,829	Somerset and Dorset Joint Railway, between Devonshire Tunnel and Midford - closed in 1966	1874
Somerset	Devonshire Tunnel	Railway	409	447	Somerset and Dorset Joint Railway between Bath Green Park and Combe Down Tunnel; Closed in 1966 now a cycle path	1874
Somerset	Somerton Tunnel	Railway	963	1,053	Built as part of the Langport and Castle Cary Railway. Part of the Berks and Hants Line between Taunton and Castle Cary	1906	51.04344°N 2.75761°W
Somerset	White Ball Tunnel	Railway	990	1,092	Bristol to Exeter line between Taunton and Tiverton Junction on Somerset–Devon border	1844
Somerset	Winsor Hill Down Tunnel	Railway	219	239	Brick-lined, Somerset and Dorset Joint Railway between Masbury and Shepton Mallet[44] Rail service closed in 1966 and the tunnel was closed to walkers until the late 1990s[45]	1874
Somerset	Winsor Hill Up Tunnel	Railway	115	126	Brick-lined, Somerset and Dorset Joint Railway between Masbury and Shepton Mallet[44] Rail service closed in 1966 and the tunnel opened to walkers.[45]	1892
Staffordshire	Birchall Tunnel	Railway	63	69	Disused since 1970, though plans are afoot to relay the line and reopen the tunnel	1849
Staffordshire	Bradnop Tunnel	Railway	33	36	Churnet Valley Railway	1905
Staffordshire	Cheddleton Tunnel	Railway	486	531	Churnet Valley Railway	1849
Staffordshire	Harecastle Tunnel (Brindley)	Canal	2,630	2,880	Closed in 1914 due to subsidence	1777
Staffordshire	Harecastle Tunnel (Telford)	Canal	2,676	2,926		1827
Staffordshire	Harecastle railway tunnel	Railway	200	243	On new diversion replacing three Victorian tunnels	1965
Staffordshire	Leek Tunnel	Railway	432	472	disused since 1964	1849
Staffordshire	Meir Tunnel	Railway	744	814		1894
Staffordshire	Meir Tunnel	Road	260	284	Carries A50	1997
Staffordshire	Oakamoor Tunnel	Railway	454	497	disused since 1965, though plans are afoot to relay the line and reopen the tunnel	1849
Staffordshire	Shugborough Tunnel	Railway	710	777		1847
Staffordshire	Stockton Brook Tunnel	Railway	66	72	disused since 1988, though plans are afoot re-open the line and tunnel	1867
Staffordshire	Swainsley Tunnel	Road	150	164	former railway tunnel on the Leek and Manifold Light Railway	1904
Suffolk	Stoke Tunnel	Railway	330	361		1846
Surrey	Betchworth Tunnel	Railway	352	385	South of Dorking station[46]	1867
Surrey	Bletchingley Tunnel	Railway	1,213	1,327		1842
Surrey	Hindhead Tunnel	Road	1,830	2,001	Part of the A3 bypassing Hindhead and the Devil's Punchbowl	2011
Surrey	Limpsfield Tunnel	Railway	504	551		1884
Surrey	Merstham Tunnel	Railway	1,674	1,831		1841
Surrey	Mickleham Tunnel	Railway	479	524	Runs under the eastern side of Norbury Park between Leatherhead and Dorking[47]	1867
Surrey	Oxted Tunnel	Railway	2,067	2,261		1884
Surrey	Quarry Tunnel	Railway	1,932	2,113	[48]	1899
Surrey	Redhill Tunnel	Railway	593	649		1899
Surrey	Reigate Tunnel	Horsedrawn carriages	91	100	Brick, length is approximate, said to be the first road tunnel[49]	1823
Surrey	St Catherine's Tunnel	Railway	121	132	Built by the London and South Western Railway, runs under St Catherine's Hill south of Guildford, also known as the Guildford Sand Tunnel[50]	1849
Surrey	Staines– Kempton aqueduct tunnel	Water	7640	8355	River water from the Thames at Hythe End to Kempton Park water works	1963
Tyne and Wear	Tyne Cyclist and Pedestrian Tunnel	Pedestrian	270	300		1951
Tyne and Wear	Tyne Tunnel (Western bore)	Road	1,676	1833	Carries northbound traffic on the A19, original tunnel	1967
Tyne and Wear	Tyne Tunnel (Eastern bore)	Road			Carries southbound traffic on the A19	2011
Tyne and Wear	Victoria Tunnel	Wagonway				1842
Warwickshire	Fenny Compton Tunnel	Canal	1,000		2.75 metres wide with 4.87 metre passing places, opened out to a deep cutting 1838-1870[51]	1776
Warwickshire	Harbury Tunnel	Railway	64	70
Warwickshire	Shrewley Tunnel	Canal	396	433		1799
Warwickshire	Newbold Tunnel	Canal		250		1778
West Midlands	Anchor Exchange	Telephone					52.4829°N 1.9042°W
West Midlands	Snow Hill Tunnel	Railway	581	635		1852	52.48095°N 1.89615°W
West Midlands	Black Lake Tunnel	Railway	377	412	Closed 1972, but now reopen for light rail use
West Midlands	Dudley Tunnel	Canal	2,884	3,154		1792	52.517544°N 2.086741°W
West Midlands	Dudley Railway Tunnel	Railway	867	948		1850	52.508392°N 2.078701°W
West Midlands	Hockley Tunnel 1	Railway	124	136	Closed 1972 but later reopened for light rail use
West Midlands	Hockley Tunnel 2	Railway	150	160	Closed 1972 but later reopened for light rail use
West Midlands	Lapal Tunnel	Canal	3,470	3,795	Disused since 1917	1798	52.4450°N 2.0017°W
West Midlands	Netherton Canal Tunnel	Canal	2,768	3,027		1858	52.50435°N 2.05932°W
West Midlands	Queensway (Birmingham)	Road	548	600			52.4830°N 1.9026°W
West Midlands & Worcestershire	Wast Hills Tunnel	Canal	2,493	2,726	Wide enough to accommodate two narrow boats but there is no towpath	1796
West Sussex	Balcombe tunnel	Railway	1,036	1,133		1841
West Sussex	Clayton Tunnel	Railway	2,066	2,259
West Sussex	Haywards Heath Tunnel	Railway	228	249
West Sussex	Lywood Tunnel	Railway	197	215	Closed 1963	1883
West Sussex	Midhurst Tunnel	Railway	252	276	Closed 1964	1866
West Sussex	North Stoke Tunnel	Railway	76	83
West Sussex	Sharpthorne Tunnel	Railway	668	731	Closed 1965, reopened 1994	1882
West Sussex	Southwick Hill Tunnel	Road	490	536	Twin-bore tunnel, part of A27 Brighton Bypass	1996
Wiltshire	Box Tunnel	Railway	2,937	3,212		1841
Wiltshire	Bruce Tunnel	Canal	459	502	Kennet and Avon Canal	1809
Wiltshire	Alderton Tunnel	Railway	463	506	South Wales main line	1903
Herefordshire & Worcestershire	Colwall Old Tunnel	Railway	1,433	1,567	Closed 1926	1861
Herefordshire & Worcestershire	Colwall New Tunnel	Railway	1,433	1,567	In service on the Cotswold Line	1926
Herefordshire	Ledbury Tunnel	Railway	1,205	1,318	In service	1861
Herefordshire	Dinmore Tunnel	Railway	970	1,060	In service on Welsh Marches Line, opened 1853 Up Line and 1891 Down Line	1853, 1891
Worcestershire	Redditch Tunnel	Railway	300	330	Closed 1980s[52]	1868
Yorkshire – East	Drewton Tunnel	Railway	1,933	2,114	Hull & Barnsley, closed 1959	1885
Yorkshire - East & Lincolnshire	Humber Gas Tunnel	Natural gas	4,900	5,400	Tunnel boring machine (TBM)/Concrete lining	December 2020	53.701°N 0.242°W
Yorkshire – East	Sugar Loaf Tunnel	Railway	121	132	Hull & Barnsley, closed 1959	1885
Yorkshire – East	Weedley Tunnel	Railway	121	132	Hull & Barnsley, closed 1959	1885
Yorkshire – North	Burdale Tunnel	Railway	1,597	1,746		1853
Yorkshire – North	Blea Moor Tunnel	Railway	2,404	2,629	Settle–Carlisle line	1876
Yorkshire – North	Grosmont Horse Tunnel	Railway	119	130	Whitby & Pickering Railway	1835
Yorkshire – North	Prospect Tunnel	Railway	754	825	In Crimple, Harrogate	1848
Yorkshire – North	Falsgrave Tunnel	Railway	240	260		1885	54°16′35.9″N 0°24′33.8″W
Yorkshire – North	Haw Bank Tunnel	Railway	200	220		1888
Yorkshire – North	Kettleness Tunnel	Railway	282	308		1883
Yorkshire – North	Mossdale Head Tunnel	Railway	99	108	Closed tunnel on abandoned line between Hawes and Garsdale	1878
Yorkshire – North	Ravenscar Tunnel	Railway	255	279	Also Peak Tunnel	1885
Yorkshire – North	Sandsend Tunnel	Railway	1,511	1,652		1883
Yorkshire – North	Woodsmith Mine Tunnel	Mineral transport	37,000	40,464	Tunnel boring machines	Due 2021	54.5182°N 0.9599°W
Yorkshire – South	Bradway Tunnel	Railway	1,853	2,027		1870
Yorkshire – South	Cat Hill Tunnel	Railway	141	154		1840
Yorkshire – South	Norwood Tunnel	Canal	2,637	2,884	Disused since 1907	1775
Yorkshire – South	Thurgoland Tunnel (old)	Railway	288	315[24]	Down line from 1952 – Closed 1983	1845
Yorkshire – South	Thurgoland Tunnel (new)	Railway	310	339[24]	Second single-track bore (up line) opened 1952 due to clearance problems on curves, closed 1983	1953
Derbyshire & Yorkshire – South	Woodhead Tunnel 1	Railway	4,840	5,293	First of 3 tunnels	1845
Derbyshire & Yorkshire – South	Woodhead Tunnel 2	Railway	4,840	5,293	Second of 3 tunnels	1853
Derbyshire & Yorkshire – South	Woodhead Tunnel 3	Railway	4,871	5,340	Third tunnel built using electric trains. Currently used by National Grid	1953
Yorkshire – West	Bingley Tunnel	Railway	138	151	Airedale Line	1847
Yorkshire – West	Bramhope Tunnel	Railway	3,439	3,761	Harrogate Line	1849
Yorkshire – West	Gildersome Tunnel	Railway	2,131	2,331	Disused tunnel on the former Leeds New Line. Filled with colliery waste to support the M62 being built on top of it in 1971[53]	1900	53°45′06.2″N 1°37′27.3″W
Yorkshire – West	Greenside Tunnel	Railway	563	616	Located on the former Pudsey Loop line	1893	53°47′23″N 1°40′12″W
Yorkshire – West	Lees Moor Tunnel	Railway	1,402	1,533		1884	53°50′11.9″N 1°55′32″W
Yorkshire – West	Morley Tunnel	Railway	3,081	3,369		1848
Yorkshire – West	Queensbury Tunnel	Railway	2,501	2,287	Closed in 1963 - proposal to re-open the tunnel as part of the Great Northern railway Trail	1879	53°45′59.4″N 1°51′24.3″W
Yorkshire – West	Summit Tunnel	Railway	2,638	2,885	Manchester and Leeds Railway	1841
Yorkshire – West	Thackley Tunnel	Railway	1,200	1,300	Airedale Line	1845
Yorkshire – West	Victoria Avenue Tunnel	Road	237	258	Carries A658 under the runway of Leeds Bradford International Airport	1982/3
Yorkshire – West	Well Heads Tunnel	Railway	605	662	Former Great Northern Queensbury Lines[54]	1882	53°47′35.6″N 1°52′39.1″W

Wales

County	Tunnel	Type	Length (m)	Length (yd)	Construction method / Notes	Date of opening
Anglesey	Bodorgan Tunnel	Railway	530	580	Two sections of tunnel (approx. 80m and 375m long) separated by open cut	1849
Bridgend	Nottage, Porthcawl	Railway	58	63	Single track. Short, south portal relandscaped. Length[3]	1829?
Caerphilly	Penar Tunnel	Railway	219	239	On Halls Road Branch between Risca and Markham
Caerphilly	Glyn Tunnel, Hafodyrynys	Railway	260	280	Taff Vale Extension. Single track. Closed 1964. Portals now backfilled	1857
Caerphilly	Caerphilly Tunnel	Railway	1,768	1933	In use between Thornhill, Cardiff and Caerphilly. On the Rhymney Railway	1871
Cardiff	Queensgate Tunnel	Road	715	782	Part of the A4232 Butetown link road	1995
Cardigan	Bryn Teify Tunnel	Railway	92	101	Closed 1970s and portals bricked up	?
Carmarthenshire	Pencader Tunnel	Railway	901	985	Built for broad gauge	1861
Conwy	Conwy Road Tunnel[55]	Road	1,080	1181	Carries the A55 road around Conwy	1991
Conwy	Penmaenbach Westbound Tunnel[55]	Road	658	720	Carries the Westbound A55 road through the Penmaenbach headland	1989
Conwy	Penmaenbach Eastbound Headland Tunnel[55]	Road	172	188	Carries the Eastbound A55 road through the Penmaenbach headland	1932
Conwy	Pen-y-Clip Westbound Tunnel[55]	Road	930	1017	Carries the Westbound A55 road through the Pen-y-Clip headland	1994
Gwynedd	Penhelig Tunnels (Aberdovey No. 1, Fron-gôch)	Railway	180	200	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels (Aberdovey No. 2, Morfa Bach)	Railway	200	219	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels (Aberdovey No. 3)	Railway	175	191	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Penhelig Tunnels (Aberdovey No. 4, Craig-y-Don)	Railway	487	533	One of four tunnels on the Cambrian Coast Railway.	1867
Gwynedd	Ffestiniog Tunnel	Railway	3,407	3726	UK's longest single-track tunnel, in use on the Conwy Valley Line	1879
Monmouthshire & Gloucestershire	Severn Tunnel	Railway	7,012	7668	Longest mainline tunnel in the UK until 2007 when tunnels on High Speed 1 opened	1886
Monmouthshire	Gibraltar Tunnel	Road	185	202	Twin bore on A40 dual carriageway	1968
Monmouthshire	Bryn Tunnel, Hengoed	Railway	364	398	On Newport, Abergavenny and Hereford Railway from Pontllanfraith to Hengoed. Portals now buried
Monmouthshire	Clydach Tunnels	Railway	250	273	Between Nantyglo and Govilon. Closed 1958	1862, doubled 1877
Monmouthshire	Gelli-felen Tunnels	Railway	230	352	Co-located with Clydach. On a continuous curve of approximately 120 degrees	1862
Monmouthshire	Monmouth Troy	Railway	130	142	Disused and blocked	1857
Monmouthshire	Usk	Railway	234	256	Disused but walkable	1857
Neath Port Talbot	Cymmer, Afan Valley	Railway	1,458	1595	Built by the Great Western Railway. Single track. Straight. North end relandscaped
Neath Port Talbot	Gelli, Afan Valley	Railway	153	167 [3]	Rhondda and Swansea Bay Railway. Single track. Stone and brick. Closed 1964.	1882
Neath Port Talbot	Gyfylchi Tunnel, Tonmawr / Afan Valley	Railway (disused)	932	1019	Single track. North end collapsed 1947. South Wales Mineral Railway.	1863
Neath Port Talbot	Cwmcerwyn, Maesteg	Railway	920	1010	Built by the Port Talbot Railway and Docks Company. Single track, curved.	1964
Newport	Hillfield Tunnels, Newport	Railway	700	770	Mainline tunnel west of Newport railway station.
Newport	Gaer Tunnel, Newport	Railway	369	403	Line to Bassaleg west of Hillfield Tunnels.
Newport	Brynglas Tunnels	Road	370	400	Twin-bore, two-lane tunnels on M4.	1967
Pembrokeshire	Castle Tunnel, Maenclochog	Railway	91	99	Used for target practice in WWII. Closed 1949.	1867
Pembrokeshire	Saundersfoot Railway	Railway	450	490	3 short Coppet Hall Tunnels on the shoreline plus the longer Hill Tunnel inland
Powys	Torpantau Tunnel	Railway	610	666	Brecon and Merthyr Railway. Also called Summit or Beacons Tunnel. Highest rail tunnel in UK at 1,313 feet (400 m)	1863
Powys	Tal-y-llyn Tunnel	Railway	616	674	Brecon and Merthyr Railway	1864
Powys	Ashford Tunnel	Canal	343	375	Monmouthshire and Brecon Canal	1800
Powys	Rhayader Tunnel	Railway	270	290	Mid Wales Railway. Closed 1963. Now a nature reserve	1864
Powys	Marteg Tunnel	Railway	340	372	Mid Wales Railway. Closed 1963. North-west of Rhayader	1864
Merthyr Tydfil CBC	Abernant / Merthyr	Railway	2,283	2497	Single track bore, curved at west end and with double-track portal.	1853
Rhondda Cynon Tâf	Garth or Walnut Tree Tunnel	Railway	410	490 [9]	Barry Railway Company Penrhos branch to Llanbradach. Double track. Closed 1963. Partly breached by Garth Quarry.	1905
Merthyr Tydfil CBC	Morlais Tunnel, Merthyr Tydfil	Railway	948	1040	Double track, curved at west end. 3 airshafts. Closed 6 January 1958. Linked LNWR with Brecon and Merthyr Tydfil Junction Railway at Morlais Junction.	1 June 1879
Merthyr Tydfil CBC	Quaker's Yard or Cefn-Glas Tunnel, Abercynon	Railway	643	703 [56]	Vale of Neath / West Midland Railway GWR. Closed to traffic in 1964.	1851
Rhondda Cynon Tâf	Rhondda Tunnel	Railway	3,148	3443	Single track. Closed due to subsidence in the 1960s.	1890
Rhondda Cynon Tâf	Tinworks, Treforest	Water	140	150	Mill race "feeder" for Crawshays Tinworks. Tunnel made when embankment was constructed	1907
Rhondda Cynon Tâf	Pontypridd	Railway	1,210	1323	Barry Railway Company Closed and bricked up	1889
Rhondda Cynon Tâf	Tongwynlais	Railway	160	180	Cardiff Railway through the Taffs Well gorge. Closed 1938. Removed in constructing A470 dual carriageway at Tongwynlais.	1907
Swansea	Penllergaer Tunnel	Railway	267	292	Active freight and sometimes passenger line on Swansea District Line	1912
Swansea	Llangyfelach Tunnel	Railway	1,785	1952	Active freight and sometimes passenger line on Swansea District Line	1912
Swansea	Peniel Green Tunnel (Lônlas)	Railway	845	924	Active freight and sometimes passenger line on Swansea District Line	1912
Swansea	Cockett Tunnel	Railway	721	788	South Wales Main Line
Torfaen	Pwll Du Tunnel	Tramroad	1875	2,051	Opened 1816 linking Blaenavon with Pwll Du	1926
Vale of Glamorgan	Wenvoe Tunnel	Railway	1,707	1867	Barry Railway. Closed 1964	1898
Vale of Glamorgan	Cogan Tunnel	Railway	203	222	Barry Railway.	1886
Vale of Glamorgan	Barry Island Tunnel. Also called "Pier Tunnel"	Railway	260	280	Barry Railway. Closed in the 1970s bricked up but part of bore used as a rifle range from west portal access.	1897
Vale of Glamorgan	Porthkerry No.1 Tunnel	Railway	498	545	Vale of Glamorgan Railway.	1898
Vale of Glamorgan	Porthkerry No.2 Tunnel	Railway	65	71	Vale of Glamorgan Railway.	1898
Wrexham	Chirk Tunnel	Canal	420	459	First in UK to have a towpath	1802

Northern Ireland

County	Tunnel	Type	Length (m)	Length (yd)	Construction method / Notes	Date of opening
Londonderry	Castlerock	Rail	611	668	Brick	1845–1853[57]
Londonderry	Downhill	Rail	281	307		1845–1846[58]
Armagh	Lissummon	Rail	1,608	1759	Stone with some brick	early 1860s[59]
Down	Binnian Tunnel	Aqueduct	4,000	4400	Stone	1948–1952
Antrim	Whitehead	Rail	159	145	Closed in 1994 until further notice.	1862–1994[60]
Tyrone	Dungannon	Rail	870	800		1862 [61]

Scotland

County	Tunnel	Type	Length (m)	Length (yd)	Construction method / Notes	Date of opening
Dundee	Marketgait Tunnel	Road	230	250	Cut and cover. Length[62]
Midlothian	Broomieknowe Tunnel	Railway	393	430	Closed 1951	1877
Glasgow	Clyde Tunnel	Road	762	833		1964
Dumfries and Galloway	Drumlanrig Tunnel	Railway	1,270	1,389
Glasgow	M8 Motorway, Charing Cross.	Road			Cut and cover, short sections
Glasgow	Glasgow Subway	Railway	10,500	11,440
Scottish Borders	Whitrope Tunnel	Railway	1,105	1,208	Closed 1969	1862
Scottish Borders	Penmanshiel Tunnel	Railway	244	267	Original tunnel closed in 1979 after collapse and new cutting constructed adjacent to old tunnel.	1979
Scottish Highlands	Nevis Tunnel	Water	24,000	26,400	hydroelectric scheme
Stirling	A9, City Centre Tunnel	Road			Cut and cover
Dundee	Dock Street Tunnel	Railway	558	610
Aberdeen	Schoolhill Tunnel	Railway	229	250
Aberdeen	Hutcheon Street Tunnel	Railway	256	280
Edinburgh	Scotland Street Tunnel	Railway	914	1,000		1847
Edinburgh	Bowshank Tunnel	Railway	226	247
Edinburgh	Innocent Tunnel, also St Leonard's Tunnel	Railway	518	566	Edinburgh and Dalkeith Railway. Closed 1968. Now a footpath and cyclepath.	1831
Falkirk	Falkirk Tunnel	Canal	630	690	Union Canal connection to Falkirk Wheel and Forth and Clyde Canal	1822
Glasgow	Kelvingrove Tunnel	Railway	870	950	Glasgow Central Railway. Closed 1964	1896
Glasgow	Cowlairs Tunnel	Railway	905	990		1842
Glasgow	Anderston Tunnel	Railway	2,533	2,770
Glasgow	Canning Street Tunnel	Railway	423	463
Glasgow	Stobcross Street Tunnel	Railway	585	640
Glasgow	Dalmarnock Road Tunnel	Railway	722	790
Glasgow	Charing Cross Tunnel	Railway	1,006	1,100
Glasgow	Glasgow Harbour Tunnel	Vehicle and pedestrian	213	233	3 bores. Vehicles hoisted to tunnel level. Closed 1987	1895
South Lanarkshire	Barncluith Tunnel	Railway	347	380
South Lanarkshire	Kirkhill Tunnel	Railway	265	290
Perth and Kinross	Moncrieffe Tunnel	Railway	1,106	1,210
Inverclyde	Newton Street Tunnel	Railway	1,930	2,110	Longest bored railway tunnel in Scotland, linking Greenock to Gourock	1889

See also

• List of bridges in the United Kingdom
• Subterranean London

References

Notes

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7. "Cornwall & Scilly HER". English Heritage. Retrieved 26 June 2011.
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10. Driving the Clay Cross Tunnel, Cliff Williams, Scarthin Books, Cromford
11. "UK canal tunnel lengths". Archived from the original on 12 October 2007.
12. "Railway Tunnel lengths G-P".
13. George Hall, Rev (1839). The History of Chesterfield: With … - Google Book Search. Retrieved 28 August 2008.
14. Killamarsh Branch & Extension: via kivetonwaleshistory
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18. Brown, Joe (2015). London Railway Atlas. Hersham: Ian Allan. ISBN 978-0-7110-3819-6.
19. Haswell, C.K. (December 1969). "Thames Cable Tunnel". Proceedings of the Institution of Civil Engineers. 44 (4): 323–340. doi:10.1680/iicep.1969.7250.
20. Anon (May 1970). "Cables Down Under". Electronics & Power. 16 (5): 175. doi:10.1049/ep.1970.0161 – via IEEE Xplore.
21. N'Kaoua, J; Pope, CW; Henson, DA. "A parametric study into the factors affecting the development and alleviation of micro-pressure waves in railway tunnels". The Fluid Engineering Centre. Mott MacDonald Ltd. CiteSeerX 10.1.1.621.9034.
22. Bardsley 1960, p. 7.
23. Cold-War History in Manchester Archived 10 June 2008 at the Wayback Machine
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33. Kent Rail's page on Shakespeare Cliff Halt, accessed 15 May 2008
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36. Clarke, Mike (1994). The Leeds & Liverpool Canal: A History and Guide. Lancaster: Carnegie Publishing. p. 175. ISBN 1-85936-013-0.
37. "Forgotten Relics of an Enterprising Age". Retrieved 3 May 2012.
38. Williams, Michael (2011). On the Slow Train Again: Twelve Great British Railway Journeys. Preface Publishing. p. 70. ISBN 978-1-84809-285-3.
39. "The Road Tunnel Operator Association – Participants". The Road Tunnel Operator Association. Retrieved 29 November 2011.
40. "Mail Rail unofficial website". Archived from the original on 4 August 2009. Retrieved 4 March 2009.
41. "Rotherhithe Tunnel Traffic". LondonTrafic. Retrieved 28 July 2011.
42. "Chesterfield Canal Trust – Official website". www.chesterfield-canal-trust.org.uk. Archived from the original on 20 June 2008. Retrieved 28 August 2008.
43. "Mansfield Road Tunnel". forgottenrelics.co.uk.
44. Calpcott, Kevin (10 August 2007). "Windsor Hill". Somerset and Dorset Joint Railway. Archived from the original on 28 June 2009. Retrieved 25 September 2011.
45. "Bowlish, Spring Walk – 3.5 mls". Shepton Mallett Town Council. Archived from the original on 9 October 2011. Retrieved 25 September 2011.
46. Capper I (2010). "Betchworth Tunnel". TQ1849. Geograph Britain and Ireland. Retrieved 14 August 2011.
47. Beechcroft G (2009). "Mickleham Tunnel". Railway Structures. Southern E-Group. Retrieved 16 August 2011.
48. Quail Map Company (1 September 2002). Railway Track diagrams. 5 England South. p. 15A.
49. "roads.org.uk website".
50. Williams G (2011). "Railway Stations and Church Names". Glyn's Trains. sinfin.net. Retrieved 4 November 2011.
51. "Fenny Compton Tunnel".
52. "Redditch Raily History". Redditch Model Railway Club. Retrieved 26 January 2011.
53. "Gildersome Tunnel". www.forgottenrelics.co.uk. Retrieved 25 September 2017.
54. "Well Heads Tunnel". www.forgottenrelics.co.uk. Retrieved 26 September 2017.
55. "Tunnels". North Wales Trunk Road Agency. 2011. Archived from the original on 18 March 2012. Retrieved 4 September 2011.
56. "UK railway tunnels lengths Q-Z".
57. "History of the Railway". Castlerock Community Association. Archived from the original on 25 July 2011. Retrieved 23 September 2010.
58. "1845–1861 Londonderry and Coleraine Railway". Retrieved 23 September 2010.
59. "Lissummon Railway tunnel". Retrieved 30 June 2013.
60. "Ireland's Disused Tunnels". Retrieved 19 August 2013.
61. "Closure of the 'Derry Road' a great loss to Ireland – Derry Journal". Retrieved 20 August 2013.
62. "Sabre Road Lists".

Bibliography

• Alan Blower, British Railway Tunnels, (Ian Allan Ltd, 1964).
• J.C. Gagg, Book of Canal Tunnels, (J.Gagg, 1976), ISBN 0-9504226-2-2
• David Jacobs, Bridges, canals & tunnels, (Princeton, N.J, 1968).
• David J. Appleby, Allan C. Gilbert, and Stephen P. Samuel, Canal Tunnels of England and Wales, (Aylestone, 2001), ISBN 0-9540382-0-7
• Bardsley, James Rodney (1960). The railways of Bolton, 1824–1959. J.R.Bardsley. ASIN B0000CKNFN.