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[4,null,null,11049,"02435.0w","Fforch Dwm Railway","SS74209498",274200,194980,"SS84579760",10,0,0,0,0,"SS742949","SN80SE",null,"Post-Medieval","Dismantled railway which ran from Tanygroes Junction up the Afan Valley to Oakwood, crossing the river on a 10 arch viaduct, then following the Pelena to Efail Fach and Tonmawr, joining the Port Talbot Railway before branching off to cont N","Transport","Railway","Destroyed","Neath Port Talbot","3/2/82",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},"Briton Ferry",null,"0","0","0","0","Glyncorrwg;Neath","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,1]
[4,null,null,0,null,null,null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,2]
[4,null,null,16482,"03831.0w","LNW RAILWAY","SS6201090750",262010,190750,"SS5916496328",10,259164,196328,0,0,"SS620907","SS69SW","SS6290","Post-Medieval","This is the route of the L & NWR line Swansea branch.","Transport","Railway","Damaged","Swansea",null,"1998-01-12","pmgb","GGAT",{"$raw":"00000000"},"Mumbles",null,"Earthwork",null,null,"0",null,null,"Glamorganshire",null,0,null,null,null,null,0,null,null,0,"Point",null,null,null,3]
[4,null,null,0,"03831.4w","EXTENSION OF L & NWR LINE SWANSEA BRANCH","SS5368594572",253685,194572,"SS5916796318",0,259167,196318,0,0,null,null,null,"Post Medieval","EXTENSION OF L & NWR LINE SWANSEA BRANCH","transport","railway","UNKNOWN",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,4]
[4,null,null,8157,"01699.0w","SWANSEA VALLEY RAILWAY","SS7122413921",271224,213921,"SS6637093154",10,266370,193154,0,0,"SS662932","SS69SE","SS6693","Post-Medieval","The Swansea Vale Railway had its origins in a series of tramways built along the valley from the eighteenth century onwards. During 1845 work began to construct a private mineral railway to carry coal from Swansea to Pontardawe.","Transport","Railway","Not known","Swansea","3/3/81","1997-11-08","pmgb","GGAT","2003-06-05","St. Thomas",null,"Other structure","0","0","0",null,"West Glamorgan","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,5]
[4,null,null,12523,"02811.0w","MUMBLES RAILWAY","SS62058775",262050,187750,"SS63058742",10,263050,187420,0,0,"SS620877","SS68NW","SS6287","Post-Medieval","The 1st passenger-carrying railway in the world, opened in 1804 using horse drawn carriages, until steam locomotion was introduced in 1877. The 13 mile line was electrified in 1929, and closed in 1960.","Transport","Railway","Destroyed","Swansea","3/3/81",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},"Mumbles",null,"0","0","0","0","Swansea","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,6]
[4,null,null,0,"01229.13w","SWANSEA TO LOUGHOR LINE OF GWR RAILWAY.","SS6593195543",265931,195543,"SS5512798299",0,255127,198299,0,0,null,null,null,"Post Medieval","Main railway line through Gowerton and Loughor opened by the Great Western Railway Co in 1850-2.","transport","railway","-",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,7]
[4,null,null,12528,"02812.0w","Gowerton Branch Line","SS58489694",258480,196940,"SS58859655",10,0,0,0,0,"SS584969","SS59NE","SS5896","Post-Medieval","A section of post medieval railway line branching from the main line at Gowerton, meeting the now dismantled line to the west of Mill Street. The route is not preserved in later features.","Transport","Railway","Not known","Swansea","AS/GGAT","2004-10-21","CLD","GGAT","2004-10-21","Gowerton",null,"Other Structure",null,"0","0","Loughor","West Glamorgan","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,8]
[4,null,null,11270,"02499.0m","MERTHYR, TREDEGAR AND ABERGAVENNY RAILWAY","SO06000990",306000,209900,"SO11661010",10,311660,210100,0,0,"SO060099","SO00NE","SO0609","Post-Medieval","Railway that ran from the Abergavenny Junction to the Merthyr Morlais Tunnel Junction. Originally built as a single-line track in 1862, it was the first rail link in the area to Eastern England and later to the Midlands. Finally closing on 6th Jan 1958","Transport","Railway","Near intact","Merthyr Tydfil","AS/GGAT","2004-11-08","CLD","GGAT","2007-11-08","Pant",null,"Other Structure",null,"0","0","Merthyr;Rhymney;Tredegar;Beaufort;Brynmawr-Abergavenny","Mid Glamorgan","Glamorganshire","0",0,null,"0","0","0",1,"BBNP",null,0,"Point",null,null,null,9]
[4,null,null,0,"03625.0g","Monmouth to Pontypool Railway","SO2976600115",329766,200115,"SO5134612819",0,351346,212819,0,0,null,null,null,"-","Monmouth to Pontypool Railway digitised from first edition OS map where it is shown as part of the Great Western Railway, Pontypool, Monmouth and Ross section.","-","-","-",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,10]
[4,null,null,7071,"06422.0m","Taff Vale Railway","ST018803",301800,180300,"ST034666",100,303400,166600,0,0,"ST018803","ST08SW","ST0180","Post-Medieval",null,"Transport","Railway","Not known","Rhondda Cynon Taff","21/10/81","1997-11-08","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","South Glamorgan","Glamorganshire","0",0,null,"0","0","FE",0,null,null,0,"Point",null,null,null,11]
[4,null,null,7071,"01570.0s","LLANTRISANT-ABERTHAW RAILWAY","ST018803",301800,180300,"ST034666",100,303400,166600,0,0,"ST018803","ST08SW","ST0180","Post-Medieval","FORMER D11: Post-medieval - modern Great Western and Taff Valley railway between Llantrisant and Aberthaw through Cowbridge, closed in sections 1930-51","Transport","Railway","Not known","Rhondda Cynon Taff","21/10/81","1997-11-08","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","South Glamorgan","Glamorganshire","0",0,null,"0","0","FE",0,null,null,0,"Point",null,null,null,12]
[4,null,null,14479,"03275.0g","PONTYPOOL-PANTEG RAILWAY","SO290002",329000,200200,"ST29359950",100,329350,199500,0,0,"SO290002","SO20SE","SO2900","Post-Medieval","Dismantled railway from Pontypool to Panteg","Transport","Railway","Destroyed","Torfaen","22/10/81",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","Pontypool","0","Monmouthshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,13]
[4,null,null,14452,"03267.0g","WYE VALLEY RAILWAY","SO510119",351000,211900,"ST551963",100,355100,196300,0,0,"SO510119","SO51SW","SO5111","Post-Medieval","The Wye Valley Railway line was part of the Great Western Railway and was opened in 1876. It was a single track railway, shown in use on the 1955 OS 6\" map","Transport","Railway","Not known","Monmouth","20/10/81",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Monmouthshire","0",0,null,"0","0","0",0,null,null,1,"Point",null,null,null,14]
[4,null,null,14447,"03266.0g","ROSS-MONMOUTH RAILWAY","SO55001432",355000,214320,"SO55701500",10,355700,215000,0,0,"SO550143","SO51SE","SO5514","Post-Medieval","Ross to Monmouth railway, opened 1873, closed 1965","Transport","Railway","Not known","Monmouth","20/10/81",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},"Monmouth",null,"0","0","0","0","Dixton Newton","0","Monmouthshire","0",0,null,"0","0","0",0,null,null,1,"Point",null,null,null,15]
[4,null,null,0,"03195.0g","BLAENAVON-NEWPORT RAILWAY","ST3107988467",331079,188467,"SO2523408556",0,325234,208556,0,0,null,null,null,"Post-Medieval","FORMER D15: Dismantled railway (part mineral) running from Blaenavon to Pontypool (SO27900125), and from Cwmbran (ST29279485) to Newport. Blaenavon to Llantarnam was closed as a passenger line in 1962, Pontypool to Cwmbran shown as Mineral railway on OS","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,16]
[4,null,null,14483,"03276.0g","BRYNMAWR-PONTYPOOL RAILWAY","SO19290957",319290,209570,"SO23420960",10,323420,209600,0,0,"SO192095","SO10NE","SO1909","Post-Medieval","Formerly part of the railway from Brynmawr to Pontypool, closed to passenger traffic in May 1941. Now dismantled","Transport","Railway","Destroyed","Blaenau Gwent","22/10/81",{"$raw":"00000000"},"pmgb","GGAT",{"$raw":"00000000"},"Nantyglo and Blaina",null,"0","0","0","0","Blaenavon","Gwent","Monmouthshire","0",0,null,"0","0","0",0,null,null,1,"Point",null,null,null,17]
[4,null,null,11030,"02430.0s","BARRY-TREHAFOD RAILWAY","ST133690",313300,169000,"ST044919",100,304400,191900,0,0,"ST133690","ST16NW","ST1369","Post-Medieval","(ST 107 672 to ST 044 919) Barry Railway, from Trehafod to Barry, was opened in 1889. (ST 133 690 to ST 084 883) Cadoxton to Treforest closed 10.9.62.","Transport","Railway","Not known","Vale of Glamorgan","0","1996-05-22","JLA 22/5/96","GGAT",{"$raw":"00000000"},null,null,"Other Structure","0","0","0","0","South Glamorgan","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,18]
[4,null,null,6922,"01435.0m","PORT TALBOT RAILWAY","SS86859086",286850,190860,"SS90808910",10,0,0,0,0,"SS868908","SS89SE","SS8690","Post-Medieval","Dismantled railway that once extended from Port Talbot through Maesteg to Pont-y-rhyl","Transport","Railway","Destroyed","Bridgend","18/11/81","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Maesteg",null,"0","0","0","0","Maesteg;Llangynwyd Middle;Ogmore;Garw","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,19]
[4,null,null,0,"01057.0m","PORTHCAWL-DYFFRYN LLYNUI RAILWAY","SS875925",287500,192500,"SS975925",100,297500,192500,0,0,null,null,null,"Post-Medieval","Dismantled railway built in 1828, travelling from Porthcawl Harbour north to Pyle, Tondu and Dyffryn Llynui.","Transport","Railway","Destroyed",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,20]
[4,null,null,12544,"02816.0w","LLIW VALLEY RAILWAY","SN65860238",265860,202380,"SN65430382",10,265430,203820,0,0,"SN658023","SN60SE","SN6502","Post-Medieval","FORMER D23: Dismantled railway serving Felindre Pit (engine house PRN 1227w, colliery PRN1406w) on the east side of the Lliw Valley located to the north of Swansea. Route survives as a pathway","Transport","Railway","Destroyed","Swansea","0","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Mawr",null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,21]
[4,null,null,0,"01701.0w","RHONDDA AND SWANSEA BAY RAILWAY","SS9380098205",293800,198205,"SS6767893051",0,267678,193051,0,0,null,null,null,"Post Medieval","RHONDDA AND SWANSEA BAY RAILWAY","transport","railway","-",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,22]
[4,null,null,7806,"01701.3w","RHONDDA TUNNEL","SS91589864",291580,198640,"SS88999684",10,0,0,0,0,"SS915986","SS99NW","SS9198","Post-Medieval","Railway tunnel extending from Blaenyewm to Blaengwynfi, carrying the Rhondda and Swansea Bay Railway. Tunnel entrance intact","Unassigned","Tunnel","Not known","Rhondda Cynon Taff","3/12/81","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Treherbert",null,"0","0","0","0","Rhondda;Glyncorrwg","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,23]
[4,null,null,7810,"01701.7w","NEATH BRANCH LINE, RAILWAY (LINEAR FEATURE)","SS73609615",273600,196150,"SS74809735",10,274800,197350,0,0,"SS736961","SS79NW","SS7396","Post-Medieval","Section of post-medieval line at Neath branching from the Rhondda and Swansea Bay Railway","Transport","Railway","Not known","Neath Port Talbot","13/1/82","1998-10-19","pmgb","GGAT","2004-01-30","Neath",null,"0","0","0","0","Neath","West Glamorgan","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,24]
[4,null,null,7809,"01701.6w","PORT TALBOT BRANCH LINE","SS725925",272500,192500,"SS775825",100,277500,182500,0,0,"SS725925","SS79SW","SS7292","Post-Medieval","Section of post-medieval line at Port Talbot branching from the Rhondda and Swansea Bay Railway","Transport","Railway","Not known","Neath Port Talbot","7/1/81","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,25]
[4,null,null,11513,"02817.0w","DULAIS VALLEY MINERAL RAILWAY","SS74909785",274900,197850,"SN85401500",10,285400,215000,0,0,"SS749978","SS79NW","SS7497","Post-Medieval","Mineral railway from Neath travelling up the Dulais Valley (also known as the Neath-Breacon Railway)","Transport","Railway","Not known","Neath Port Talbot","15/1/82","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Blaenhonddan",null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,26]
[4,null,null,15824,"03627.0g","WYE VALLEY RAILWAY","SO275025",327500,202500,"SO175025",100,317500,202500,0,0,"SO275025","SO20SE","SO2702","Post-Medieval","Dismantled section of railway between Sirhowy Vale and Pontypool, on the Taff Vale Extension of the Newport/Abergavenny-Hereford Railway","Transport","Railway","Destroyed","Torfaen","25/1/81","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Monmouthshire","0",0,null,"0","0","0",0,null,null,1,"Point",null,null,null,27]
[4,null,null,11517,"02818.0w","SWANSEA VALE, NEATH AND BRECON, JUNCTION RAILWAY","SN85101131",285100,211310,"SN76280716",10,276280,207160,0,0,"SN851113","SN81SE","SN8511","Post-Medieval","Railway built 1863 linking the Swansea Vale Railway with the Neath to Breacon line, owned by the Neath Breacon Railway Co","Transport","Railway","Not known","Neath Port Talbot","18/1/82","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Tawe-Uchaf","1863","0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,28]
[4,null,null,11280,"02500.3m","LOADING BAY VALE OF NEATH RAILWAY","SN9108207687",291082,207687,"SN9103707913",10,291037,207913,0,0,"SN909076","SN90NW","SN9007","Post-Medieval","Site of loading bay served by a balance incline on the Vale of Neath Railway, built/used 1858-1930s","Transport","Inclined plane","Not known","Rhondda Cynon Taff","18/1/84","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},"Rhigos",null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,29]
[4,null,null,11277,"02500.0m","VALE OF NEATH RAILWAY (LINEAR FEATURE)","SN89130648",289130,206480,"SO08320861",10,308320,208610,0,0,"SN891064","SN80NE","SN8906","Post-Medieval","The construction of the Vale of Neath Railway was authorised by Act of Parliament in 1846. The first trains ran between Neath and Pontypool in 1863 and in the same year the Vale of Neath Railway amalgamated with the Great Western Railway.","Transport","Railway","Not known","Neath Port Talbot","0",{"$raw":"00000000"},"pmgb","GGAT","2003-04-22","Glynneath",null,"Other Structure",null,"0","0","Rhigos;Hirwaun;Llwydcoed;Cyfarthfa","Mid Glamorgan","Glamorganshire","0",0,null,"0","0","0",0,"BBNP",null,0,"Point",null,null,null,30]
[4,null,null,11528,"02819.0w","VALE OF NEATH RAILWAY - SWANSEA NEATH EXTENSION","SS725975",272500,197500,"SS675925",100,267500,192500,0,0,"SS725975","SS79NW","SS7297","Post-Medieval","Vale of Neath Railway took over this coastal route that another company had promoted. SWR had also tried to take it over. Passenger traffic opened Aug 1863 using Wind St station. New station at East Dock opened Mar 1873. Became part of GWR","Transport","Railway","Not known","Neath Port Talbot","19/1/81","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,31]
[4,null,null,11536,"02821.0w","SWANSEA DISTRICT LINE","SS675975",267500,197500,"SS725975",100,272500,197500,0,0,"SS675975","SS69NE","SS6797","Post-Medieval","Extant line serving Swansea, using the Llangefelach Tunnel","Transport","Railway","Near intact","Swansea",null,"1998-10-19","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,32]
[4,null,null,12548,"02822.0w","SWANSEA DISTRICT LINK WITH RSB RAILWAY","SS725975",272500,197500,"SS7039397123",100,270393,197123,0,0,"SS725975","SS79NW","SS7297","Post-Medieval","Swansea District Line link with the Rhondda Swansea Bay Railway via Neath River bridge.","Transport","Railway","Near intact","Neath Port Talbot","16/6/82","1998-10-19","pmgb","GGAT",{"$raw":"00000000"},null,null,"0","0","0","0","0","0","Glamorganshire","0",0,null,"0","0","0",0,null,null,0,"Point",null,null,null,33]
[4,null,null,12919,"03018.0w","CEFNGYFELACH RAILWAY","SS63259825",263250,198250,"SS65149476",10,265140,194760,0,0,"SS632982","SS69NW","SS6398","Post-Medieval","Mineral railway constructed in 1896, from Cefngyfelach to join the GWR at Cwmfelin. Extended in 1901 to site of Tirdonkin colliery (1195W).","Industrial","Mineral railway","Not known","Swansea","0","1996-02-04","JLA 2/4/96","GGAT",{"$raw":"00000000"},"Llangyfelach",null,"Documents","0","0","0","Loughor;Swansea","West Glamorgan","Glamorganshire","0",0,null,"0","Industrial","0",0,null,null,0,"Point",null,null,null,34]
[4,null,null,0,"01066.0m","TAFF VALLEY RAILWAY PORTH SECTION","ST0079491840",300794,191840,"ST0263791334",0,302637,191334,0,0,null,null,null,"Post-Medieval","railway porth to dinas opened spring 1849, and in Rhondda fach in december 1849 - Barrie, D.S.M. A Regional History of the Railways of Great britain v12 South Wales.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,35]
[4,null,null,0,"06076.0m","London and North Western Railway - Dowlais Extension","SO0653207989",306532,207989,"SO0778008165",0,307780,208165,0,0,null,null,null,"Post Medieval","In 1873 the Brecon and Merthyr Railway allowed the London North Western Railway to construct a line running westward through Dowlais Top to Ivor Junction, in return for running rights.","transport","Railway","Damaged","Merthyr Tydfil",null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,36]
[4,null,null,0,"01279.0m","BRECON & MERTHYR/ LNW JOINT Railway","SO0608810570",306088,210570,"SO0511905300",0,305119,205300,0,0,null,null,null,"Post-Medieval","In 1873 the Brecon and Merthyr Railway allowed the London North Western Railway to construct a line running westward through Dowlais Top to Ivor Junction, in return for running rights.","Transport","Railway","Damaged",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,37]
[4,null,null,0,"01815.0m","A185 DESK-BASED ASSESSMENT L1","SN9579706059",295797,206059,"SN9579706059",0,298929,203221,0,0,null,null,null,"Post-Medieval","A desk-based assessment for the A465 Abergavenny to Hirwaun dual carrageway identified the course of he Hirwaun Common Mineral Railway, visible in the form of an embankment. The line linked the Vale of Neath Railway to the Bute Colliery","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,38]
[4,null,null,0,"026911.0m",null,"SO0445205968",304452,205968,"SO0538803706",0,305388,203706,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,39]
[4,null,null,0,"02762.0m","SITE NAME NOT KNOWN",null,0,0,null,0,0,0,0,0,null,null,null,"Post-Medieval","GGAT Assessment Nantgarw-margam A114 - Dismantled single track railway of the Alexandra Docks Railway Company. Just to the north of the British Gas easement strip, the 10.25 milepost survives, on the east side of the line.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,40]
[4,null,null,0,"02762.0m","SITE NAME NOT KNOWN","ST0751389714",307513,189714,"ST1487787423",0,314877,187423,0,0,null,null,null,"Post-Medieval","GGAT Assessment Nantgarw-margam A114 - Dismantled single track railway of the Alexandra Docks Railway Company. Just to the north of the British Gas easement strip, the 10.25 milepost survives, on the east side of the line.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,41]
[4,null,null,0,"02766.0m","SITE NAME NOT KNOWN","ST0941287271",309412,187271,"ST1437878205",0,314378,178205,0,0,null,null,null,"Post-Medieval","GGAT Assessment Nantgarw-margam A114 -Partially dismantled double track railway of the Taff Vale Railway Company. This section was constructed on an embankment approximately 2m high.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,42]
[4,null,null,0,"02767.0m","SITE NAME NOT KNOWN","ST0561283905",305612,183905,null,0,305680,183522,0,0,null,null,null,"Post-Medieval","GGAT Assessment Nantgarw-margam A114 -75m to the south of the pipeline route, there was a junction of the double track railway (Site 1.5) with a single track branch line running to the northwest. This railway runs in a cutting where it is crossed by the","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,43]
[4,null,null,0,"02795.0m","SITE NAME NOT KNOWN","SS9836187505",298361,187505,"ST0080287092",0,300802,187092,0,0,null,null,null,"Post-Medieval","Wessex Assessment Gelli-Seren Farm 1994 - Hendreforgan Branch line dismantled in mid 20th century","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,44]
[4,null,null,0,"02914s","PENARTH RAILWAY, HARBOUR BRANCH LINE","ST1749274876",317492,174876,"ST1802573887",0,318025,173887,0,0,null,null,null,"Post-Medieval","Penarth Railway, Harbour branch line, this now dismantled. See GGAT project A487 (Prospect Place, cultural heritage archaeological assessment, written June 1998).","Transport","Railway","-",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,45]
[4,null,null,0,"02858.0m","WM37 CWM PIT","SO0369306690",303693,206690,"SO0431704335",0,304317,204335,0,0,null,null,null,"Post-Medieval","GGAT West Merthyr Reclamation Scheme A375","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,46]
[4,null,null,0,"02862.0s",null,"ST0654186352",306541,186352,"ST0688784541",0,306887,184541,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,47]
[4,null,null,0,"02890m","SITE NAME NOT KNOWN","ST2106889375",321068,189375,"ST1558286568",0,315582,186568,0,0,null,null,null,"Post-Medieval","Gwern-y-Domen assessment A012 1","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,48]
[4,null,null,0,"03172.0m",null,null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,49]
[4,null,null,0,"02998.0s","CARDIFF RAILWAY","ST0835988537",308359,188537,"ST1822079765",0,318220,179765,0,0,null,null,null,"Post-Medieval","Cardiff Railway","Transport","Railway","Damaged",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,50]
[4,null,null,0,"03170m","192 BRANCH LINE OF BRECON & MERTHYR RAILWAY","SO0600509906",306005,209906,"SO0650808446",0,306508,208446,0,0,null,null,null,"Post-Medieval","To either side of, and below, the A465 is the remains of a substantial north/south cutting originally part of the branch line of the Brecon & Merthyr Railway. Opened in 1869, the branch line ran from Dowlais Central (south of A465) to Pant in the north.","Transport","Railway","Near destroyed",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,51]
[4,null,null,0,"03219m","277 HIRWAUN COMMON RAILWAY (BRANCH LINE)","SN9592605193",295926,205193,"SN9601904081",0,296019,204081,0,0,null,null,null,"Post-Medieval","At the point where the Hirwaun Common Mineral Railway crosses the A465, a branch line diverges to the south and currently survives as a footpath. This branch line is marked on the 1880 O.S. (but not on the tithe map).Two trenches were evaluated with Stag","Transport","Railway","Damaged",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,52]
[4,null,null,0,"03276.1g","AR8 TALYWAIN BRANCH","SO2547305023",325473,205023,"SO2815200378",0,328152,200378,0,0,null,null,null,"Post-Medieval","On 18 September 1879, the 'high level' Talywain branch (AR8)was built from Pontypool (Trevethin junction) to Abersychan(at Abersychan and Talywain Station). This was one of the last railways to be built by the Monmouthshire Railway and Canal Company.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},"pmgb",null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,53]
[4,null,null,0,"03276.2g","AR9 LNWR RAILWAY","SO1917011491",319170,211491,"SO2602103442",0,326021,203442,0,0,null,null,null,"Post-Medieval","From Bleanavon to Abersychan. At Abersychan and Talywain station this line connected with the London and North Western Railway branch (AR9) from Blaenavon, opened in 1877-8. The two lines were linked to the ironworks' internal railway system.","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,54]
[4,null,null,0,"05267.0g","A185 DESK-BASED ASSESSMENT L17","SO1616011873",316160,211873,"SO1671909936",0,316719,209936,0,0,null,null,null,"Post-Medieval","A185 DESK-BASED ASSESSMENT A465 ABERGAVENNY TO HIRWAUN DUALLING LNWR, Ebbw Vale Branch Line (Fig. 9). Two branch lines lead off the LNWR, the first is the Mineral Railway (L16 [Fig. 9]) that starts at the junction of Bryn-Serth Road and Rassa Road","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,55]
[4,null,null,0,"05496.0g","SITE NAME NOT KNOWN",null,0,0,null,0,0,0,0,0,null,null,null,"Post-Medieval","Ironbridge assessment Pwll Du 1994 Waun Afon : Railway track. The remains of a mineral railway line, running north-west from the site of Milfraen Colliery (Mi42) and then branching off across the Waun Afon peat bog towards the former line of the L.N.W.R","Transport","Railway","Not known",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,56]
[4,null,null,0,"03224m","255 RAILWAY A. ABERDARE & RHONDDA RAILWAY","SN9457606245",294576,206245,"SN9481905096",0,294819,205096,0,0,null,null,null,"Post-Medieval","The course of the Aberdare & Rhondda Railway running roughly west/east, and crossing the proposed line of the A465 near to the crossing over the Nant-y- Bwlch. It is marked on the OS of 1880 as the Aberdare & Rhondda 'main line'. From a bridge over the","Transport","Railway","Near destroyed",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,57]
[4,null,null,0,"06038.0m","Bryncethin Branch, Great Western Railway",null,0,0,null,0,0,0,0,0,null,null,null,"Post Medieval","Bryncethin branch of the Great Western Railway joining the Ogmore branch at Ynysawdre and Brynmenyn junctions and running east to Bryncethin junction on the Cardiff and Ogmore branch. Construction started in 1883 and the route was completed by the 2nd OS","transport","railway","Damaged",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,58]
[4,null,null,0,"06109.0w","Tramway, Cilmaengwyn","SN7390306810",273903,206810,"SN7402706162",0,274027,206162,0,0,null,null,null,"Post Medieval","Tramway running north-south through Coed Cwmdu Wood.","transport","tramway","Not known","Neath Port Talbot",null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,59]
[4,null,null,0,"07226g","Abersychan Limestone Railway",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,60]
[4,null,null,0,"05985.0g","Llam-march Railroad","SO2293013305",322930,213305,"SO2129312123",0,321293,212123,0,0,null,null,null,"Post-Medieval","This line originated when the proprietors of the Clydach Ironworks requested that the B & A Canal Company build a tramroad to transport raw materials from the collieries and ironstone mines on the hillsides south of the gorge to the Clydach Ironworks.","Transport","Tramway",null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,61]
[4,null,null,0,"05985.1g","LLAM-MARCH RAILROAD, Waunllapria Branch",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,62]
[4,null,null,0,"05274.0g","Llam-march Tramroad","SO2438314541",324383,214541,"SO2185712204",0,321857,212204,0,0,null,null,null,"Post-Medieval","By 1811 most of the original route of the Llam-march Railroad (05985.0g) serving the Clydach Ironworks.","Transport","Tramway",null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,63]
[4,null,null,0,"05265.0g","Rassau Railroad",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,64]
[4,null,null,0,"05271.0g","Bailey's Llangattock Tramroad","SO1909710916",319097,210916,"SO2217515286",0,322175,215286,0,0,null,null,null,"Post-Medieval",null,"Transport","Tramway","Near Destroyed",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,65]
[4,null,null,0,"03173.1m","Morlais Tramroad (East)",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,66]
[4,null,null,0,"03173.2m","Morlais Tramroad (West)",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,67]
[4,null,null,0,"09408.0g","Rhymney Tramroad Branch",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,68]
[4,null,null,0,"03225.0m","Tappenden's Tramroad",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,69]
[4,null,null,0,"03225.1m","Tappenden's Tramroad West",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,70]
[4,null,null,0,"08853.1g","Bryn Oer Tramroad, Hall's Trevil Branchline",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,71]
[4,null,null,0,"08853.0g","Bryn Oer Tramroad","0",0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,72]
[4,null,null,0,"05995.0g","Tredegar Tramroad","SO1204212695",312695,212695,"SO1415509189",0,314155,209189,0,0,null,null,null,"Post-Medieval","Opened c.1804, the Tredegar Tramroad was built to convey limestone from Trevil quarries.","Transport","Tramway","Near destroyed",null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,73]
[4,null,null,0,"09410.0g","Ebbw Vale Private Line",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,74]
[4,null,null,0,"09410.1g","Ebbw Vale Private Line Later Tramroad",null,0,0,null,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,{"$raw":"00000000"},null,null,{"$raw":"00000000"},null,null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,75]
[4,null,null,0,"06217.0m","Tramroad in Garth Wood","ST1142082667",311420,182667,"ST1209282985",1,311420,182667,0,0,null,null,null,"Unknown","The main tramroad along the north side of the Lesser Garth and visible on the 1882 OS Map, this tramroad connects the Garth Mine entrance, the quarry above it, and the Haematite level with the incline to the furnace site in Pentrych.","Transport","Tramway","Not Known","Cardiff",null,"2010-06-29","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,76]
[4,null,null,0,"06218.0m","Tramway in Garth Wood","ST1177082840",311770,182840,"ST1209282933",1,312092,182933,0,0,null,null,null,"Unknown","A tramroad occupying a terrace just below PRN 06217.0m and to the east of PRN 06219m, visible on the 1882 OS Map and which issued directly into the ore sorting bays.","Transport","Tramway","Not Known","Cardiff",null,"2010-06-24","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,77]
[4,null,null,0,"06220.0m","Tramroad in Garth Wood","ST1209282933",312092,182933,"ST1243682735",1,312436,182735,0,0,null,null,null,"Unknown","Tramroad linking the Quarry-Glas with PRN 06219m, continuing eastward as far as the east side of the quarry mouth, then becoming a trackway following the contour of the hillside where it meets PRN 06228.0m.","Transport","Tramway","Not Known","Cardiff",null,"2010-06-25","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,78]
[4,null,null,0,"06221.0m","Tramroad in Garth Wood","ST1158682769",311586,182769,"ST1164082760",10,311640,182760,0,0,null,null,null,"Unknown","Waste tipping ramroad which took waste from the Garth Mine adit mouth down to the bridge across the Heol Goch, laid across an existing bank of waste material on the north side of tramroad PRN 06217.0m.","Transport","Tramway","Not Known","Cardiff",null,"2010-06-25","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,79]
[4,null,null,0,"06230.0m","Tramroad in Garth Wood","ST1167982790",311679,182790,"ST1166582760",1,311665,182760,0,0,null,null,null,"Unknown","A well defined tramroad/bridle path near the Garth Mine adit entrance and extending westwards from the floor of the quarry to join the main tramroad (PRN 06217.0m).","Transport","Tramway","Not Known","Cardiff",null,"2010-06-29","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,80]
[4,null,null,0,"06232.0m","Tramroad in Garth Wood","ST1151082695",311694,182800,"ST1170082828",1,311700,182828,0,0,null,null,null,"Unknown",null,"Transport","Tramway","Not Known","Cardiff",null,"2010-06-29","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,81]
[4,null,null,0,"06228.0m","Tramway in Garth Wood","ST1245082700",312450,182700,"ST1210082990",10,312100,182990,0,0,null,null,null,"Unknown","A tramroad visible on the 1920 OS Map as 'Old Tramway', this tramroad extends around the northeast corner of the Lesser Garth  from the area of the modern kilns to the foot of the incline (PRN 06219m).","Transport","Tramway","Not Known","Cardiff",null,"2010-06-29","LG","BWW",{"$raw":"00000000"},"Pentrych",null,null,null,null,null,null,null,null,null,0,null,null,null,null,0,null,null,0,null,null,null,null,82]