Railway viaducts

A (hopefully) comprehensive listing

Locations beginning T-Z

Last update 17 June 2026

Please select a data set from the list below:

Name Notes Length ELR Start mileage End mileage Spans/ arches
Tadcaster crosses River Wharfe; grade Ⅱ listed ≈153m INM 11
Taff see Red Bridge
Taff MEZ 0m 13ch
Taff River also called Afon Taff 112m SWM2 170m 38ch 170m 42ch
Taffs Well see River Taff
Tame GBN 0m 44ch✖official mileage 0m 44ch, actual approximately 0m 8ch 4
Tame see River Tame
Tame also called Park Parade; western structure; stone and brick; built ≈1845; grade Ⅱ listed 40m SAJ 0m 51ch 0m 53ch 3
Tame see Reddish
Tamerton built 1890; grade Ⅱ listed 107m DAC 224m 76ch 225m 01ch 7
Tame Valley see Canal
Tamworth crosser River Anker; enlarged with additional span on south (northbound) side ≈45m LEC2 109m 70ch 4?
Tamworth see Kettlebrook
Tanner Street LBC 0m 38ch 0m 45ch 22?
Tanner Street LBW 0m 38ch 0m 45ch 15
Tanner Street XTD 2m 22ch 2m 28ch
Tarras opened 1864; demolished 1967 ≈288m RLB ≈4m 51ch 12
Tavistock 137m DAC 213m 54ch 213m 61ch 8
Tavy see River Tavy
Tawe MSV 5m 23ch
Taw River see Umberleigh River
Taw River separate up and down side structures NDN 197m 79ch 4
Tay [1] built 1849, replaced by Tay [2] in 1862 406m SCM5 ≈20m 04ch ≈20m 24ch 25
Tay [2] built 1862; girders over River Tay with brick arches on central island 396m SCM5 20m 04ch 20m 24ch 22
Tay Bridge [1] opened 1878; collapsed 28 December 1879; remnant category A listed ≈3,200m ECN2 85
Tay Bridge [2] opened 1887; mainly wrought iron with some brick; category A listed 3,552m ECN2 56m 37ch 58m 55ch 86
Tees see Forcett
Tees opened 1861; demolished 1971 223m DNT? 5
Tees Bridge [north side] built 1882, replaced 2008✖One Tees Bridge reported as built in 1906; it is unclear which if either ≈108m DSN2 11m 21ch 11m 26ch 3
Tees Bridge [south side] built 1844, now disused✖One Tees Bridge reported as built in 1906; it is unclear which if either ≈97m DSN2 11m 21ch 11m 26ch 5
Templand see Bank
Temple End see Hughenden Road
Tenby see Greenhill
Teviot ETC 5
Teviot also called Roxburgh; category A listed ≈208m KLO ≈49m 36ch ≈49m 46ch 14
Thames Bridge see Windsor
Thames Street & River Thames RDG1 19m 33ch 9
Thame Valley under construction for HS2; main line ≈968m HS2 ≈64.373km ≈65.341km 36
Tharston crosses River Tas; concrete ≈35m LTN1 105m 60ch
The Arches see Colwyn
Theobalds Grove Station brick HDT 13m 41ch 18
Thorndell ≈54m TBH1 52m 74ch 6
Three Arch rebuilt 2010; three arches (infilled) and one span; steel and concrete CHW2 17m 56ch 4
Three Arches 30m AAM 2m 14ch 2m 16ch 3
Throsk also called Alloa; crosses River Forth ALL 4m 14ch 4m 42ch
Thurrock built 2003; also quoted as 1.024km, 30.550km-31.574km 1,047m TRL3 30.549km 31.596km 23
Thurston Road NTL 7m 42ch 7m 49ch 14
Tickhill built 1928 ≈74m HAC 11m 69ch 11m 72ch 4
Tiddy see St Germans
Tilt crosses River Tilt; iron/timber; category B listed ≈49m HGL2 34m 72ch 34m 74ch 7
Timber Lane 34m SVB 134m 18ch 3
Timberley built 1863 168m TBH1 53m 40ch 9
Tintern River Bridge 63m WYE 4m 32ch
Tinworth Street BML1 1m 04ch 1m 08ch 7
Tinworth Street RDG1 1m 04ch 1m 08ch 7
Tiverton Street HHH 1m 27ch 1m 31ch 6
Toddington also called Stanway 193m HCL 8m 66ch 8m 76ch 15
Todmorden 165m MVN2 19m 20ch 19m 28ch
Tolney Lane NOB1 16m 39ch
Tomatin built 1897; brick/stone; crosses old A9 road; category B listed HGL2 98m 39ch 98m 44ch 9
Tonge also called Astley Bridge 705m BBB 11m 30ch 11m 64ch 73
Tong Park crosses Gill Beck GUE2 1m 55ch 1m 65ch 10?
Tongwynlais crosses Glamorganshire canal CRY 3m 28ch
Tonteg 55m LTR 4m 75ch
Tooley Street XTD 1m 64ch 10
Topley Stone Bridge CNB3 161m 32ch
Torksey 275m TYB3 18
Torrington crosses River Torridge THJ 0m 31ch
Town Quay wrought iron ≈57m VIR 33m 14ch 6
Traeth Bach [1] also called Briwet Bridge; crosses Afon Dwyryd; 1,554m including approaches; replaced by Traeth Bach [2] in 2013 135m DJP 115m 76ch 116m 05ch 22
Traeth Bach [2] also called Briwet Bridge or Brewitts Bridge; crosses Afon Dwyryd; built 2013 181m DJP 115m 76ch 116m 05ch
Traeth Mawr see Traeth River
Traeth River also called Traeth Mawr; timber; also given as 644m, probably full length including approaches 121m DJP 118m 37ch 118m 43ch 16
Tramway BWB 3m 76ch
Tredegar see Tynycaeau
Treffry built 1842; crosses NEW; stone; scheduled ancient monument 204m Treffry Aqueduct Line 284m 78ch 10
Treforest see River Ely
Tregargle 86m MLN3 297m 07ch 297m 11ch 3
Tregarne [new] 166m MLN3 296m 52ch 296m 60ch 7
Tregarne [old] replaced by Tregarne [new] MLN3 296m 52ch 6
Trehafod CTD 16m 39ch
Treharris 63m VON 14m 39ch 14m 42ch
Treherbert 92m RSB 0m 10ch 0m 15ch
Trenance concrete arches; grade Ⅱ listed 141m NEW 302m 20ch 302m 27ch 9
Trent [goods lines] crosses River Trent; brick SPC6 118m 77ch 119m 08ch
Trent [main lines] crosses River Trent; steel SPC6 118m 77ch 119m 08ch
Trent & Mersey Canal East under construction for HS2; main line down line ≈64m HS2 ≈187.983km ≈188.047km
Trent & Mersey Canal East under construction for HS2; main line up line ≈65m HS2 ≈187.970km ≈188.035km
Trent & Mersey Canal North under construction for HS2; main line ≈90m HS2 ≈187.994km ≈188.084km
Trent & Mersey Canal West under construction for HS2; main line down line ≈109m HS2 ≈188.580km ≈188.689km
Trent & Mersey Canal West under construction for HS2; main line up line ≈110m HS2 ≈188.595km ≈188.705km
Trent Fields built 1959; concrete ≈380m CCB1 0m 00ch 0m 19ch 36
Tre'r Ddol timber; crosses River Clettwr SBA2 83m 31ch 7
Tresulgan [new] 146m MLN3 260m 71ch 260m 79ch 6
Tresulgan [old] replaced by Tresulgan [new] MLN3 260m 71ch 7
Treveris Street HHH 0m 57ch 0m 60ch 4
Treviddo [new] 128m MLN3 262m 48ch 262m 55ch 5
Treviddo [old] replaced by Treviddo [new] MLN3 262m 48ch 5
Trewyn Sands crosses Afon Crigyll; concrete 40m CNH3 256m 16ch 256m 18ch 5
Trowse crosses River Wensum; swing portion 26m long; replaced earlier double track structure immediately to east ≈56m LTN2 123m 37ch 4
Trundleys Road XTD 4m 12ch 7
Truro [new] crosses Truro River; grade Ⅱ listed 405m MLN3 300m 09ch 300m 29ch 18
Truro [old] crosses Truro River; remnant grade Ⅱ listed; replaced by Truro [new] MLN3 300m 09ch 15
Tucking Mill 87m SAD 3m 19ch 3m 23ch 8
Tulketh also called Maudland; 10 brick arches and 1 metal girder bridge 181m PBN 0m 74ch 1m 03ch 11
Tulloch built 1894; crosses River Spean; steel/timber ≈60m WHL 81m 40ch 81m 43ch 3
Tunstall Road ATL 5m 37ch 5m 40ch 5
Turkey Mill opened 1884; roofed-over until 1970s ≈236m SBJ 40m 73ch 41m 04ch 21
Turner Lane see Folds Road
Turweston under construction for HS2; main line up line ≈85m HS2 ≈95.567km ≈95.652km
Tutt Hill 127m TRL3 83.732km 83.859km
Twemlow see Holmes Chapel
Twerton formed from Twerton East and Twerton West; grade Ⅱ listed 583m MLN1 108m 29ch 108m 58ch 28
Twerton 1 metal span with 2 intermediate supports connected to 8 brick arches SAD 0m 14ch 11
Twerton East see also Twerton MLN1 108m 29ch 108m 50ch
Twerton West see also Twerton MLN1 108m 50ch 108m 58ch
Twyford also called Seven Arch; crosses River Loddon; brick 62m MLN1 31m 18ch 31m 22ch 7
Twyford under construction for HS2; main line; crosses Padbury Brook ≈57m HS2 ≈82.249km ≈82.306km
Tymawr see Glamorganshire Canal
Tynycaeau also called Nine Arches or Tredegar or St Fagans; crosses SWM2 83m CTD 5m 11ch 5m 15ch 9
Ulverston Canal also called North Lonsdale Road 77m CBC1 18m 39ch 18m 43ch 6
Umberleigh River also called Taw River 64m NDN 204m 65ch 204m 68ch 5
Union Flag BML1 0m 41ch 0m 48ch 15
Union Flag RDG1 0m 41ch 0m 48ch 15
Union Mill also called Batley; built 1848 ≈180m MDL1 ≈34m 73ch 16
Union Street built 1896 XTD 1m 08ch 38
Unstone brick/stone; crosses River Drone ≈120m TJC1 149m 69ch 149m 75ch 8
Upford also called Hackford; semicircular brick arches 246m SWB 109m 52ch 109m 64ch 11
Up High Level up line only; rebuilt 1979; crosses LEC1; steel BOK3 5m 36ch 5m 47ch
Uppermill see Saddleworth
Upton crosses Holes Bay 43m BML2 115m 20ch 115m 22ch 3
Urr CJD
Vale ≈93m VTB3 39m 59ch 39m 63ch 8
Vale Royal crosses River Weaver 142m CGJ1 168m 66ch 168m 73ch 7
Valley LJT2 21m 02ch
Vauxhall Station BML1 1m 28ch 1m 34ch 13
Vauxhall Station RDG1 1m 28ch 1m 34ch 13
Velindre 30m RSB 13m 31ch 13m 33ch
Venn Cross also called Waterrow 145m BLE 175m 76ch 176m 04ch 4
Viaduct built 1840; part of Bethnal Green To Hackney Downs Arches BGK 2m 79ch
Viaduct crosses SDC ≈62m CJC 4m 59ch 7
Viaduct crosses Kirkintilloch Basin Branch (BEL or MAK?), canal feeder and public road CME 6m 57ch 6m 59ch
Viaduct CMP2 187m 59ch 187m 62ch 6
Viaduct crosses River Medlock CMP2 187m 63ch 188m 70ch 184
Viaduct COL 189m 28ch 1
Viaduct ≈40m DPJ 4m 63ch 4m 65ch
Viaduct ECM1 2m 40ch
Viaduct ECM1 83m 36ch
Viaduct ECM7 0m 33ch 10
Viaduct ECM7 0m 41ch
Viaduct built 1904 LEN3 PLG2 101m 19ch ?
Viaduct 52m MSV 4m 75ch 4m 78ch
Viaduct MVE1 0m 09ch 0m 71ch ≥63
Viaduct ≈553m MVM 0m 08ch 0m 35ch 52
Viaduct MVN1 0m 09ch 0m 23ch 22
Viaduct MVN2 10m 47ch
Viaduct ORG 0m 36ch
Viaduct PJW 1m 47ch 1m 59ch
Viaduct RTS 14m 03ch 6
Viaduct crosses DBP3; brick; replaced 2022 SAS 2m 03ch 2m 09ch 9
Viaduct crosses DBP3; steel; built 2022 92m SAS 2m 03ch 2m 09ch ?
Viaduct SDJ2 16m 75ch 17m 15ch 12
Viaduct crosses River Taff YNZ 24m 25ch
Viaduct 5 see Pendleton
Viaduct A TAI 1m 21ch
Viaduct No 1 crosses flood plain BML2 92m 07ch
Viaduct No 2 crosses stream BML2 92m 10ch
Viaduct No 3 crosses River Lymington BML2 92m 13ch 92m 14ch
Viaduct No 20A see Alpha
Viaduct No 21A see Beta
Viaduct Road also called Busby; crosses White Cart Water EKE 3m 17ch 3m 23ch 7
Victoria crosses River Wear; stone; completed 1838; grade Ⅱ* listed 247m FEP 15m 25ch 15m 37ch 10
Victoria part of Wicker
Victoria Bridge cast iron 61m? SVB 140m 33ch 140m 38ch 1
Victor Street see Ellis Street
Village 16m SBA2 58m 42ch
Villiers Street XTD 0m 01ch 6
Vineyard Close see Catford
Voltaire Road brick ATL 6m 15ch 6m 17ch 5
Voltaire Road VIR 2m 29ch 2m 32ch 4
Wakefield built 1865; various parts brick, steel DOL1 174m 58ch 175m 32ch 88
Wakefield built 1856; date typo in source data c.f. row above?; various parts brick, steel DOL2 175m 36ch 175m 68ch 43
Walkham 336m LAN2 10m 13ch 10m 30ch 15
Walkham [original] 335m? LAN2 10m 13ch 10m 30ch 17
Wallabrook also called Wilminstone; crosses River Wallabrook 123m DAC 212m 60ch 212m 66ch 7
Wallington crosses River Wallington; built 1848; brick; grade Ⅱ listed 221m SDP2 85m 32ch 85m 43ch 18
Walnut Tree 7 girders and 2 arches; demolished 1969 475m PRS 9m 46ch 9m 69ch 9
Walthamstow Queens's Road To Woodgrange Park Arches brick/concrete TAH2 8m 50ch 11m 45ch 395
Walton crosses River Mersey; concrete and brick ≈135m CHW1 17m 15ch 17m 23ch 10
Walworth Road Station built 1862 HHH 2m 14ch 2m 17ch 8
Wandsworth Town RDG1 4m 70ch 5m 02ch 19
Wanless Road ATL 4m 58ch 4m 63ch 12
Wanless Road CAT 3m 61ch 3m 66ch 12
Wardsend also called Five Aches or Herries Road ≈60m MAC3 38m 77ch 5
Wargrave crosses River Thames ≈120m HEN 33m 01ch 3
Warrington ≈401m MAJ 18m 07ch 18m 27ch 23
Warwick Flood Arches 22m DCL 107m 24ch 107m 25ch 3
Wash House River separate up and down side structures NDN 193m 16ch 4
Watercourse [1] sold 1987 NMH 14m 18ch 14m 20ch
Watercourse [2] sold NMH 15m 12ch 15m 14ch
Watercourse & Occupation crosses Keckwick Brook 52m CHW1 13m 74ch 13m 76ch 5
Waterfall see Slapewath
Waterloo BML1 0m 00ch 0m 22ch 64
Waterloo RDG1 0m 00ch 0m 22ch 64
Water Of Coyle crosses Water Of Coyle HBE 3m 14ch 3m 17ch 5
Water Of Leith see Slateford
Water Orton No 1 under construction for HS2; north chord up line ≈1,492m HS2 ≈1.320km ≈2.812km
Water Orton No 2 under construction for HS2; north chord down line; crosses River Tame ≈192m HS2 ≈0.597km ≈0.789km
Water Orton No 3 under construction for HS2; north chord down line; crosses M42 ≈635m HS2 ≈1.017km ≈1.652km
Water Orton No 4 under construction for HS2; main line ≈65m HS2 ≈164.261km ≈164.326km
Water Orton No 5 under construction for HS2; Leeds spur up line ≈53m HS2 ≈1.168km ≈1.221km
Waterrow see Venn Cross
Waterside crosses Luggie Water; stone ≈39m EGM1 8m 23ch 8m 26ch 3
Waterworks Approach Road WPH2 38m 38ch
Watling Street steel with concrete deck ≈46m LEC1 47m 54ch 1
Watts see Stroud
Waukmill Glen Reservoir ≈222m NNH 105m 48ch 105m 59ch 14
Wavertree ≈135m WJL3 191m 11ch 191m 17ch 9
Weaver see Frodsham
Weedon Bec see Church Street
Weightmans crosses River Trent ≈88m NOB1 15m 04ch 15m 06ch 8?
Weirmarsh crosses River Taw; separate up and down side structures 57m NDN 202m 34ch 202m 37ch 5
Weldon see Wilden
Welland Valley see Harringworth
Wellingborough [fast lines] crosses River Ise; iron ≈154m SPC2 64m 51ch 64m 57ch 15
Wellingborough [slow lines] crosses River Ise; concrete ≈154m SPC2 64m 52ch 64m 57ch 15
Wellington Street North built 1850 LEN3 101m 27ch 6
Wellington Street South crosses River Aire and Leeds & Liverpool Canal; grade Ⅱ listed ≈300m none✖on Leeds Wellington Street Branch: North Eastern/Great Northern Joint 15?
Wellow 47m SAD 5m 71ch 5m 74ch 3
Welsh Harp also called Brent; crosses River Brent; brick ≈213m SPC1 6m 21ch 6m 31ch 19
Welwyn also called Digswell; opened 6 August 1850 469m ECM1 21m 37ch 21m 60ch 40
Wendover Dean under construction for HS2; main line ≈450m HS2 ≈50.500km ≈51.000km 10
Wenning also called Clapham; iron 117m SKW1 241m 70ch 241m 76ch 8
Went crosses River Went; built 1875 ≈124m SMJ2 7m 54ch 7m 60ch 6
Westbury under construction for HS2; main line ≈300m HS2 ≈92.551km ≈92.851km
Westdown Road CAT 8m 00ch 8m 01ch 3
Westfield also called Avon; crosses River Avon; stone; opened 1855; category B listed 203m BKN ≈3m 58ch ≈3m 68ch 16
West Gate see Harlaxton Road
West Hampstead 215m MCJ1 203m 24ch 203m 34ch
West Largin [new] built 1875; stone; grade Ⅱ listed 59m MLN3 270m 21ch 270m 24ch 3
West Largin [old] replaced by West Largin [new] MLN3 270m 21ch 3
West Lune crosses River Lune; stone/brick 96m SJC 7m 30ch 7m 35ch 7
West Meon 62' high ≈83m MEL ≈61m 37ch ≈61m 41ch 4
West Norwood ≈135m BBJ 7m 05ch 7m 09ch 10
Weston crosses River Weaver 87m CHW1 10m 77ch 11m 02ch 4
Weston Mill 344m MLN2 249m 46ch 249m 63ch 10
West River & Flood Opening built 1904; crosses River Great Ouse; steel ≈58m BGK 67m 22ch
West Wine Cellar BML1 0m 18ch
West Wine Cellar RDG1 0m 18ch
Westwood [new] 78m MLN3 269m 12ch 269m 16ch 4
Westwood [old] replaced by Westwood [new] MLN3 269m 12ch 3
Wetheral also called Corby Bridge; crosses River Eden; built 1834 ≈170m NEC2 55m 64ch 55m 72ch 5
Whalley built 1850 588m DJH 17m 27ch 17m 58ch 48
Wharncliffe brick; grade Ⅰ listed; 10 spans? 272m MLN1 7m 42ch 7m 54ch 8
Whatlington A crosses River Line TTH 53m 62ch
Wheatley crosses River Thame THA 12m 06ch
Wheatley's Bridge crosses River Calder; built 1840; 5 spans with a road bridge attached ≈116m MVN2 39m 01ch 39m 07ch 6
White Lion BML1 1m 19ch 1m 23ch 8
White Lion RDG1 1m 19ch 1m 23ch 8
Whites Ground LBC 0m 19ch 0m 20ch 2
Whites Ground LBW 0m 19ch 0m 20ch 2
Whitgift BML1 0m 68ch 0m 73ch 9
Whitgift RDG1 0m 68ch 0m 73ch 9
Whitley crosses River Calder and A646 ≈124m MVN2 22m 55ch 4
Whitting Moor Road also called Sheffield Road; built 1929 replacing earlier structure; crosses River Whitting and B6057 road (bridge plate refers to A6057) ≈63m TJC1 148m 45ch 6
Wichnor BJW3 22m 65ch 22m 78ch
Wichnor DBP1 16m 58ch 16m 79ch
Wicker built 1848; carried Sheffield Victoria station over River Don; formed main Wicker Arch, 2 footway arches, 12 arches to north west and 27 arches to south east most carrying Victoria station 604m MAC3 41m 12ch 41m 39ch 42
Wilden see Wildon
Wilden also called Weldon; crosses River Stour; built 1860 67m SVB 134m 07ch 5
Wildon also called Wilden MTA 4m 10ch 4
Willington also called Howdon; opened 1839 319m TMB 7
Willoughby crosses River Leam ≈193m MCJ3 ≈138m 07ch ≈138m 17ch 13
Willow Vale 34m FNS2 0m 30ch
Wilminstone see Wallabrook
Wilmslow 192m STY 0m 26ch 0m 35ch 9?
Wilmslow Old brick arches 192m CMP1 176m 79ch 177m 09ch 9
Winchester see Rochester Street
Wincobank also called Meadowhall Road; built 1991; crosses A6109 road; steel/concrete ≈31m TJC2 162m 00ch 162m 02ch 2
Windsor includes Thames Bridge WIN 20m 55ch-20m 58ch; built 1849; grade Ⅱ* listed 1,875m WIN 20m 06ch 21m 18ch 294
Windsor Line PBE 7m 53ch 7m 60ch 12
Wing crosses River Charter; brick ≈59m GSM1 89m 65ch 89m 68ch
Winterbourne also called Bradley; segmental brick arches 127m SWB 110m 36ch 110m 42ch 5
Winstanley Road see Banana
Withy Brook ≈51m LEC2 90m 33ch 90m 36ch
Wivelscombe built 1859, demolished after 19 May 1908 when line diverted; crosses Wivelscombe Lake ≈60m SGZ 253m 44ch 5?
Woldingham ≈78m SCU1 16m 45ch
Wolverhampton ≈130m RBS2 12m 36ch 12m 42ch
Wolverton also called Haversham; brick arches ≈385m LEC1 52m 70ch 53m 09ch 14
Woodbank original built 1880, second identical structure attached on line doubling; blown up 30 April 1967 176m BCL 102m 57ch 12
Woodhall Farm built 1859 ECM1 18m 73ch
Woodhouse originally part of River Rother, ≈195m long with 14 arches MAC3 47m 15ch 47m 20ch 7
Woodhouse crosses CHR; built 1849 60m MAC3 47m 22ch 6
Woodhouselee also called Firth; crosses River North Esk HPK 13m 32ch 13m 38ch
Woodmill Street also called Dunfermline ≈167m CWH1 16m 54ch 16m 60ch 16
Wood Street Station platform supporting arches; brick CJC 7m 03ch 29
Woolston crosses River Neet; built 1898 ≈97m MJB 225m 29ch 5
Wootton Street XTD 0m 56ch 16
Worcester includes River Severn Bridge 855m WAH 121m 10ch 121m 52ch 65
Workington see Halfpenny Billies
Workshop PBE 7m 39ch 7m 46ch 9
Worleston crosses River Weaver; brick arches 148m CNH1 161m 05ch 161m 12ch
Wressle River Bridge crosses River Derwent HUL1 25m 15ch 25m 20ch 3?
Wribbenhall also called Bewdley North; brick; grade Ⅱ listed 102m SVB 137m 33ch 137m 38ch 7
Wrotham Road 83m TRL3 40.944km 41.027km
Wroxham crosses River Bure; wrought iron WHC1 8m 50ch 8m 55ch
Wyre crosses River Wyre; brick ≈74m CGJ6 13m 00ch 13m 03ch 6
Yarm crosses River Tees; also quoted as 560m long (excluding river crossing); brick and stone; grade Ⅱ listed 633m LEN3 55m 29ch 55m 64ch 43
Yarnbrook Bridge two spans filled in ≈56m WEY 107m 56ch 5
Yarrow ≈104m MVE2 21m 25ch 21m 29ch 5
Ynisdavid SWJ 2m 25ch
Ynisdawley also called Ynysdawley 47m NAB 8m 23ch 8m 25ch
Ynysdawley see Ynisdawley
Ynysforgan see Morriston
Ynystawe see River Tawe
Yorkhill ≈128m NEM3 2m 53ch 2m 59ch 7
unknown CNH3 221m 04ch 221m 08ch
unknown crosses DCL 74m SKN 41m 68ch 41m 72ch
unknown crosses Grand Union Canal 40m SKN 41m 72ch 41m 74ch