{ "checked": "2026-11-04", "workbook": { "url": "https://naei.energysecurity.gov.uk/sites/default/files/2026-10/NAEIPointsSources_2024.xlsx", "sha256": "5c00d4ccd15890a982992a077e3ae636401981b4061b2d41e2e9ed5a6c9ed86c", "role": "Identity/location cross-checks only; no point emissions imported." }, "policy": { "years": [ 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 ], "annualRule": "Include a documented steelmaking-route interval if it overlaps any part of the calendar year. First/last years inclusive; known full-year pauses excluded (Redcar 2011). Year-only evidence is kept at year precision. This is a reconstruction of documented route history, not a daily operating log or annual plant production series.", "scope": "Primary EAF melting/casting or integrated BF–BOF crude-steel works. Include EAF ingot steelmaking at Forgemasters; exclude rolling-only sites, research/admin, remelting-only units, foundry-only casting facilities and planned furnaces.", "nationalScope": "Map locations are contextual and not used to allocate reconstructed national emissions to plants. No point-workbook emission quantities, pollutant totals or source-ID counts are used in the UI or national model.", "deduplication": "Consolidate process units and operator aliases at the same steelmaking works. Route labels are historical routes, not current-owner labels projected backwards.", "workbookRole": "2005–2024 point workbook used only for factory identity cross-checks and consolidated locations. Route and operation intervals require independent historical/operator evidence; record presence is not operational proof.", "completeness": "Documented subset, not an exhaustive census. Named unresolved historical works and years are listed explicitly. Short outages are not comprehensively reconstructed.", "geography": "United Kingdom, including Scotland, Wales and Northern Ireland; no eligible Northern Ireland works established in the reviewed evidence. Historical localities are approximate where point coordinates are unavailable.", "gaps": [ { "works": "Alphasteel / MIR / Liberty Newport", "years": [ 1981, 2012 ], "reason": "EAF equipment documented in the 1997 equipment list, but annual melting and exact cessation not verified; rolling continued after melting stopped. Excluded from the operating-route map pending evidence, not labelled EAF on pollution records alone.", "evidence": [ "eaf1997", "newportGap", "newport2013" ] }, { "works": "UNSCO / Unbrako, Kiveton Park", "years": [ 1981, 2004 ], "reason": "EAF classification documented for 1997; precise annual production interval, last melt and historic works coordinates not verified. Kept as a named coverage gap rather than inventing annual operations.", "evidence": [ "eaf1997", "unscoGap" ] }, { "works": "F.H. Lloyd Engineering Steels", "years": [ 1981, 1990 ], "reason": "Contemporary sector histories mention a 1990 closure, but precise site, route and crude-steel versus casting boundary have not been verified. Not added as an unsupported operating marker.", "evidence": [] }, { "works": "Hadfields: Leeds Road / East Hecla / Wharf Lane", "years": [ 1981, 1983 ], "reason": "The Leeds Road 80-tonne EAF had a documented 1980 closure; final East Hecla works closure around November 1983 does not identify dates and locations of every remaining primary melt shop versus foundry/finishing operation. No unsupported plant interval or duplicate marker added.", "evidence": [ "hadfieldsGap1980", "hadfieldsGap1983" ] }, { "works": "Firth Brown / Atlas and Brown Bayley Sheffield sites", "years": [ 1981, 1983 ], "reason": "Early-1980s rationalisation and company histories require a furnace-level site crosswalk and dated final primary melts; operator mergers alone cannot identify additional works distinct from the mapped River Don / Forgemasters site. Kept as unresolved coverage, not extrapolated.", "evidence": [ "asw1981" ] }, { "works": "Shotton, Corby, Consett, Normanby Park and Glengarnock early closure boundaries", "years": [ 1981, 1981 ], "reason": "Whole-works closure or continuing rolling/ironmaking dates do not by themselves prove an operating primary EAF or BF-BOF route during 1981. Earlier open-hearth operations and planned EAFs are outside this route map unless a dated qualifying melt is established. No additional 1981 markers inferred.", "evidence": [ "five1982" ] } ], "historicalReview": "The 1981-1989 extension uses plant-specific operator histories, contemporary Parliamentary and European Commission records, and public heritage archives. No works interval is derived from the national emissions workbook. Supplied IISI 1978, 1980, 1981, 1983, 1985 and 1990 yearbooks were checked as national production references; national totals do not establish individual factory operation. Existing 1990-2024 factory membership, routes and coordinates are retained.", "exclusions": [ { "works": "Hallside", "reason": "Closed in 1979, before the map period; later clearance is not production.", "evidence": [ "hallsideExcluded" ] }, { "works": "Workington / Moss Bay", "reason": "1978 Parliamentary account says steelmaking had stopped; continuing rail/sleeper manufacture is not a primary EAF/BF-BOF works. Distington foundry alone is outside scope.", "evidence": [ "workingtonExcluded" ] }, { "works": "London Works, Tipton", "reason": "Parliament identifies re-rolling mills, not a primary melt shop.", "evidence": [ "londonExcluded" ] } ] }, "references": { "eaf1997": { "url": "https://naei.energysecurity.gov.uk/sites/default/files/empire/AEAT6270Issue2finaldraft_v2.pdf", "title": "Defra / AEA, AEAT-6270 Issue 2 (2002), Table A5.1, printed p.48", "supports": "Historical EAF steelmaking classification, explicitly distinguished from the subsequent foundry list. Equipment in existence at end-1997 is not proof of production in every year." }, "integrated2003": { "url": "https://publications.parliament.uk/pa/cm200203/cmselect/cmtrdind/686/686w07.htm", "title": "UK Steel written evidence to Parliament (2003)", "supports": "Port Talbot, South Teesside and Scunthorpe integrated works; Llanwern heavy-end closure 2001 and Ravenscraig 1992." }, "scunthorpe": { "url": "https://www.britishsteel.co.uk/who-we-are/where-weve-come-from/", "title": "British Steel, Scunthorpe history", "supports": "BOS steel first produced 31 May 1973; integrated route history." }, "scunthorpeNow": { "url": "https://www.britishsteel.co.uk/what-we-do/how-we-make-steel/", "title": "British Steel, How we make steel", "supports": "Scunthorpe uses basic oxygen steelmaking with liquid iron." }, "portEnd": { "url": "https://www.tatasteeluk.com/corporate/news/looking-to-a-green-future-as-port-talbot-safely-closes-%E2%80%98heavy-end%E2%80%99", "title": "Tata Steel UK, heavy-end closure, 1 October 2024", "supports": "Last iron and slab from the traditional route on 30 September 2024; planned EAF is not operating EAF." }, "llanwern": { "url": "https://publications.parliament.uk/pa/cm200001/cmselect/cmtrdind/270/27009.htm", "title": "House of Commons, Corus restructuring (2001)", "supports": "Closure of iron and steelmaking at Llanwern in 2001; rolling is not continued crude-steel production." }, "redcarPause": { "url": "https://questions-statements.parliament.uk/written-questions/detail/2016-05-18/37218", "title": "UK Parliament, primary steelmaking closures and sales (2016)", "supports": "Teesside closure 2010 and final SSI closure 2015. A 2011 sale is not a production restart." }, "redcarRestart": { "url": "https://www.gov.uk/government/news/vince-cable-witnesses-the-return-of-steel-production-to-teesside", "title": "BIS, return of Teesside slab steel production, 21 May 2012", "supports": "Blast furnace relit in April 2012, after over two years; exclude 2011." }, "cardiff": { "url": "https://7-steeluk.com/uk-manufacturing-sites/", "title": "7 Steel, manufacturing sites", "supports": "Tremorfa is the EAF melt shop; Castle Works is rolling-only and consolidated/excluded as a separate steelmaker." }, "smaccHistory": { "url": "https://www.sheffield.marcegaglia.com/history/", "title": "Marcegaglia Sheffield, SMACC history", "supports": "SMACC melt shop built 1977; stainless slab then billet steelmaking; operator changes 1992, 2001, 2003 and 2023 do not create new works." }, "smaccRoute": { "url": "https://www.sheffield.marcegaglia.com/manufacturing-process/", "title": "Marcegaglia Sheffield, manufacturing process", "supports": "Primary EAF melting and casting at SMACC; distinct from downstream bar/rod processing." }, "forgemastersHistory": { "url": "https://sheffieldforgemasters.com/arc-furnace-upgrade/", "title": "Sheffield Forgemasters, EAF upgrade", "supports": "EAF installed in the 1960s; subsequent upgrades to the same steelmaking furnace." }, "forgemastersIngot": { "url": "https://sheffieldforgemasters.com/whatwedo/melt-shop/", "title": "Sheffield Forgemasters, melt shop", "supports": "EAF produces liquid steel and ingots for forging; included as primary ingot steelmaking, not merely a remelter or foundry-only casting line." }, "rotherham": { "url": "https://libertysteelgroup.com/uk/wp-content/uploads/sites/2/2022/09/2205019-LSG-Business-Presentation_MAY-22_LR3.pdf", "title": "Liberty Steel, Rotherham Aldwarke cast products (2022)", "supports": "EAF steelmaking at Aldwarke, distinguished from Brinsworth downstream mills." }, "stocksbridge": { "url": "https://www.sysustainabilitycentre.org/UserFiles/File/Reports/Stocksbridge-SNAPSHOT-16.12.24-FINAL.pdf", "title": "South Yorkshire Sustainability Centre, Stocksbridge snapshot (2024), p.3", "supports": "Primary EAF closed 2005; subsequent remelting and downstream manufacture do not extend primary EAF steelmaking." }, "sheerness": { "url": "https://hansard.parliament.uk/Commons/2012-03-21/debates/12032149000001/Thamesteel", "title": "Hansard, Thamesteel, 21 March 2012", "supports": "Steelmaking began 1972; melt-shop production stopped November 2011. Administrative closure in January 2012 does not establish 2012 steel production." }, "templeborough": { "url": "https://www.visitmagna.co.uk/science-adventure/history-of-steel-timeline/", "title": "Magna, Templeborough steelmaking history", "supports": "Electric steelmaking; last steel cast 25 November 1993, distinct from continuing Aldwarke." }, "brymbo": { "url": "https://coflein.gov.uk/en/sites/305753", "title": "RCAHMW / Coflein, Brymbo steelworks", "supports": "Steelworks closure 1990." }, "brymboRoute": { "url": "https://hansard.parliament.uk/Commons/1981-03-19/debates/fd121760-f1a8-464e-9f28-d9e3554b0b8f/OrdersOfTheDay", "title": "Hansard, Brymbo EAF steelmaking, 19 March 1981", "supports": "Electric-arc route in operation before the study period." }, "panteg": { "url": "https://coflein.gov.uk/en/sites/308640", "title": "RCAHMW / Coflein, Panteg steelworks", "supports": "New melt shop 1971; last steel cast 12 December 1996; later coil processing excluded." }, "pantegRoute": { "url": "https://www.saimm.co.za/Journal/v072n03p074.pdf", "title": "Howat, electric smelting, 1971, printed p.79", "supports": "16 MW open-arc melting furnace at Panteg." }, "clydesdale": { "url": "https://www.northlanmuseums.co.uk/story/down-the-tubes/", "title": "North Lanarkshire Museums, Down the Tubes", "supports": "Mossend Clydesdale works replaced open hearth with EAFs in 1975; works closed 1991. Adjacent quench/temper activities do not extend steelmaking." }, "newportGap": { "url": "https://cdn.cyfoethnaturiol.cymru/683136/20160205-ep3830gh-v006-decision-doc.pdf", "title": "Natural Resources Wales, Liberty Newport permit decision, 5 February 2016, p.4", "supports": "Melt shop had not operated for years; restart conditional. Historical EAF equipment and ongoing rolling do not prove annual melting." }, "newport2013": { "url": "https://publications.parliament.uk/pa/cm201314/cmselect/cmwelaf/882/882we04.htm", "title": "Welsh Government written evidence, 2013", "supports": "Newport melt shop mothballed while rolling continued." }, "unscoGap": { "url": "https://moderngov.rotherham.gov.uk/documents/g3448/Public%20reports%20pack%20Thursday%2022-Dec-2005%2009.00%20Planning%20Board.pdf?T=10", "title": "Rotherham Planning Board, 22 December 2005, p.103", "supports": "UNSCO steel mill and liquidation; does not date last liquid-steel production." }, "five1982": { "url": "https://hansard.parliament.uk/Commons/1982-12-01/debates/0e5de8ac-8662-4cd2-b0d6-3936a066e452/Steel", "title": "Hansard, Steel, 1 December 1982", "supports": "Contemporary debate identifies Ravenscraig, Scunthorpe, Port Talbot, Llanwern and Teesside as the five main operating integrated steel centres." }, "five1984": { "url": "https://hansard.parliament.uk/Commons/1984-07-23/debates/4a31d046-4598-4fe9-a77c-ec57534d815c/IronAndSteel", "title": "Hansard, Iron and Steel, 23 July 1984", "supports": "Government reports continuing steelmaking at all five integrated sites, plus actual production records at Port Talbot, Scunthorpe and Stocksbridge in 1983." }, "llanwernHeritage": { "url": "https://coflein.gov.uk/en/sites/86821", "title": "RCAHMW / Coflein, Llanwern (NPRN 86821)", "supports": "Integrated works built 1958-1962; steelmaking ceased 2001. Later hot-strip rolling is explicitly distinguished from the demolished heavy end." }, "tremorfa1980": { "url": "https://aei.pitt.edu/43236/1/pollution_control_1980.pdf", "title": "European Commission, EUR 5977, research progress at 1 January 1980 (published 1981), pp.57-58", "supports": "Project PS302 describes operating electric-arc steelmaking and two 100-tonne furnaces at GKN Tremorfa, including measurements on the working fume plant." }, "tremorfa1987": { "url": "https://museum.wales/collections/online/object/b0e5b37b-1163-34f6-8016-0a768a921dab/ASW-Cardiff-works-photograph/", "title": "Museum Wales, ASW Tremorfa EAF photograph, 1987, accession 2007.26/35", "supports": "Dated primary photographic record of an operating EAF crew at Tremorfa in 1987, not an East Moors integrated-works image." }, "asw1981": { "url": "https://hansard.parliament.uk/commons/1982-10-25/debates/867b5db0-1852-42f1-96ed-6cf3aca38e76/WrittenAnswers", "title": "Hansard, Phoenix schemes, 25 October 1982", "supports": "Allied Steel and Wire joint venture formed July 1981; Sheffield Forgemasters merger announced August 1982. Ownership changes are not new furnace commissioning dates." }, "sheffieldWitness": { "url": "https://hansard.parliament.uk/Lords/2025-10-23/debates/f3fe7923-b7da-41d8-8644-a7a4efe07347/LordsChamber", "title": "Hansard, Lord Jamieson firsthand account, 23 October 2025, 2.25pm", "supports": "Former British Steel shop-floor worker in early 1980s identifies Stocksbridge, Rotherham, Tinsley and Templeborough as EAF special-steel producers. Retrospective firsthand evidence is distinguished from contemporaneous closure records." }, "rotherham1979": { "url": "https://hansard.parliament.uk/commons/1979-11-07/debates/48c21974-23d1-4ef4-81c1-3ae45f5ddeda/OrdersOfTheDay", "title": "Hansard, Steel Industry, 7 November 1979", "supports": "Contemporary statement that BSC successfully operated EAFs at Rotherham, supporting the established early-1980s route alongside the site histories." }, "stocksbridgeArchive": { "url": "https://picturesheffield.com/frontend.php?action=zoom&buy=1&id=79564&keywords=Ref_No_increment%3BEQUALS%3Bs40740&level=0&pos=1102", "title": "Sheffield City Archives, Samuel Fox Stocksbridge EAF, c.1960, s40740", "supports": "Primary archive photograph identifies an electric-arc furnace at the Stocksbridge works before the study period." }, "roundOakRoute": { "url": "https://archives.dudley.gov.uk/calmview/Record.aspx?id=p%2F632&src=CalmView.Catalog", "title": "Dudley Archives, Round Oak electric-arc melting shop, 1969, p/632", "supports": "Primary photograph documents electric-arc steel melting at Round Oak; two 70-tonne basic EAFs identified." }, "roundOakEnd": { "url": "https://hansard.parliament.uk/commons/1982-12-01/debates/0e5de8ac-8662-4cd2-b0d6-3936a066e452/Steel", "title": "Hansard, Round Oak production and closure notice, 1 December 1982", "supports": "304,000 tonnes of steel produced in 1981-82; announced final production date 23 December 1982." }, "roundOakClosed": { "url": "https://hansard.parliament.uk/lords/2025-04-12/debates/1A6B4063-E34B-47CB-A142-265E392EF3C3/Debate", "title": "Hansard, Round Oak history, 12 April 2025", "supports": "Retrospective confirmation that Round Oak finally closed in December 1982; no 1983 steelmaking inferred from later demolition." }, "roundOakLocation": { "url": "https://historicengland.org.uk/research/results/reports/7802/TheSteelIndustryinEnglandAnHistoricalOverview", "title": "Historic England, Williams (2019), report 65/2019, printed p.38", "supports": "Round Oak works location recorded as SO 92311 87559. Grid is a works locality, not an individual furnace survey." }, "duportRoute": { "url": "https://hansard.parliament.uk/lords/1981-02-24/debates/b75fa86d-8876-4a17-99cf-46de22e498f3/BscCorporatePlan", "title": "Hansard, Duport Llanelli, 24 February 1981", "supports": "Contemporary discussion explicitly identifies two electric-arc furnaces in the operating Llanelli factory facing closure." }, "duportEnd": { "url": "https://coflein.gov.uk/en/sites/40409", "title": "RCAHMW / Coflein, Llanelli Steel Works (NPRN 40409)", "supports": "Production ended in 1981; the former site is Sandy Water Park. Grid reference SN4950000280 establishes the approximate works location." }, "tinsleyOpen": { "url": "https://www.sheffield.gov.uk/sites/default/files/docs/libraries-and-archives/archives-and-local-studies/Royal%20Visits%20study%20guide%20v1-9.pdf", "title": "Sheffield City Archives, Royal Visits research guide", "supports": "Opening of English Steel Corporation Tinsley Park Works by Duke of Edinburgh, 15 October 1963; separate from later SMACC melt shop." }, "tinsleyClosure": { "url": "https://hansard.parliament.uk/Commons/1985-07-02/debates/65133e07-8ff1-4224-bd56-fd41c8533719/BritishSteelCorporation%28BorrowingPowers%29", "title": "Hansard, Tinsley Park billet works closure, 2 July 1985", "supports": "Actual 1985 operating billet works and closure decision; alternative jobs discussed at Aldwarke and Stocksbridge, so they are not aliases for this works." }, "tinsleyDemolition": { "url": "https://www.picturesheffield.com/frontend.php?action=printdetails&keywords=Ref_No_increment%3BEQUALS%3Bt06530&prevUrl=", "title": "Sheffield City Archives, former Tinsley Park melting shop demolition, 1988, t06530", "supports": "Demolition record locates the former melting works on the site later used by Sheffield City Airport. The 1988 demolition is not an additional production year." }, "hadfieldsGap1980": { "url": "https://archisplus-documents.s3.amazonaws.com/doi/BAC-0259-1980/BAC-0259-1980-1197.pdf", "title": "European Commission Historical Archives, V/402/80-EN", "supports": "1980 readaptation aid for permanent closure of the Leeds Road 80-tonne EAF; later company employment or works closure dates cannot automatically extend that furnace operation." }, "hadfieldsGap1983": { "url": "https://www.sheffield.gov.uk/sites/default/files/docs/libraries-and-archives/archives-and-local-studies/research/Sources%20for%20studying%20the%20history%20of%20the%20Meadowhall%20Shopping%20Centre.pdf", "title": "Sheffield City Archives, Meadowhall research guide (2019), p.5", "supports": "East Hecla final closure around November 1983; this whole-works date alone does not resolve remaining primary melt shops versus foundry/finishing facilities." }, "hallsideExcluded": { "url": "https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/7660/156780.pdf", "title": "UK planning guidance, Hallside Renewable Energy Park case study", "supports": "Hallside steelworks closed 1979; land reclamation in later years is not operating steelmaking." }, "workingtonExcluded": { "url": "https://hansard.parliament.uk/Commons/1978-05-11/debates/cc84e280-caa1-4425-888c-36aa49394d06/IronAndSteel%28Amendment%29Bill", "title": "Hansard, Workington shift from steelmaking to rail finishing, 11 May 1978", "supports": "Contemporary account distinguishes continuing rail/sleeper manufacture from steelmaking already stopped in the 1970s." }, "londonExcluded": { "url": "https://api.parliament.uk/historic-hansard/commons/1982/dec/14/british-steel-corporation", "title": "Hansard, London Works Steel, 14 December 1982", "supports": "London Works at Tipton described as two re-rolling mills; works closure is not evidence of a primary EAF melt shop." } }, "works": [ { "id": "scunthorpe", "name": "Scunthorpe", "route": "Integrated", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 53.565893, "lon": -0.597422, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "scunthorpe", "scunthorpeNow", "integrated2003", "five1982", "five1984" ], "note": "BOS route from 1973; study clipped to 1981–2024.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "five1982", "five1984" ] } }, { "id": "port-talbot", "name": "Port Talbot", "route": "Integrated", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 51.56687, "lon": -3.771486, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "integrated2003", "portEnd", "five1982", "five1984" ], "note": "Included in 2024 for production up to 30 September; future planned EAF not mapped as operating.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "five1982", "five1984" ] } }, { "id": "llanwern", "name": "Llanwern", "route": "Integrated", "periods": [ { "firstYear": 1981, "lastYear": 2001 } ], "lat": 51.571886, "lon": -2.975246, "coordinateNote": "Approximate historical locality; not a surveyed furnace point.", "evidence": [ "llanwern", "integrated2003", "five1982", "llanwernHeritage" ], "note": "Steelmaking ceased in 2001; later rolling/coating excluded.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "five1982", "llanwernHeritage" ] } }, { "id": "ravenscraig", "name": "Ravenscraig", "route": "Integrated", "periods": [ { "firstYear": 1981, "lastYear": 1992 } ], "lat": 55.789351, "lon": -3.990417, "coordinateNote": "Approximate historical locality; not a surveyed furnace point.", "evidence": [ "integrated2003", "five1982", "five1984" ], "note": "Integrated works closed 1992; partial closure year included.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "five1982", "five1984" ] } }, { "id": "redcar", "name": "Redcar / Lackenby", "route": "Integrated", "periods": [ { "firstYear": 1981, "lastYear": 2010 }, { "firstYear": 2012, "lastYear": 2015 } ], "lat": 54.622942, "lon": -1.127834, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "integrated2003", "redcarPause", "redcarRestart", "five1982", "five1984" ], "note": "Integrated iron/steelmaking consolidated as one works; 2011 excluded; beam mill excluded after steelmaking ceased.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "five1982", "five1984" ] } }, { "id": "cardiff", "name": "Cardiff · Tremorfa", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 51.479547, "lon": -3.142306, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "cardiff", "tremorfa1980", "asw1981", "tremorfa1987" ], "note": "EAF melt shop only; separate Castle Works rolling mill not an additional steelmaker.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "tremorfa1980", "asw1981", "tremorfa1987" ] } }, { "id": "smacc", "name": "Sheffield · SMACC", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 53.399488, "lon": -1.400481, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "smaccHistory", "smaccRoute" ], "note": "One melt shop through British Steel/Avesta/Outokumpu/Marcegaglia ownership changes.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "smaccHistory", "smaccRoute" ] } }, { "id": "forgemasters", "name": "Sheffield Forgemasters", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 53.407789, "lon": -1.421243, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "forgemastersHistory", "forgemastersIngot", "asw1981" ], "note": "Primary EAF liquid steel and ingot production; not the separately listed Crewe rolls foundry.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "forgemastersHistory", "forgemastersIngot", "asw1981" ] } }, { "id": "aldwarke", "name": "Rotherham · Aldwarke", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2024 } ], "lat": 53.449867, "lon": -1.323883, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "rotherham", "rotherham1979", "sheffieldWitness" ], "note": "Aldwarke primary melt shop; Brinsworth strip rolling not a second works. Short production pauses are not individually reconstructed.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "rotherham1979", "sheffieldWitness" ] } }, { "id": "stocksbridge", "name": "Stocksbridge", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2005 } ], "lat": 53.482627, "lon": -1.59099, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "stocksbridge", "stocksbridgeArchive", "sheffieldWitness", "five1984" ], "note": "Primary EAF ended 2005; later VAR/ESR and finishing excluded.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "stocksbridgeArchive", "sheffieldWitness", "five1984" ] } }, { "id": "sheerness", "name": "Sheerness", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 2011 } ], "lat": 51.440137, "lon": 0.752031, "coordinateNote": "Consolidated works location from the NAEI point workbook; component records are not separate factories.", "evidence": [ "eaf1997", "sheerness" ], "note": "Last melt-shop production November 2011; not the administrative closure year 2012.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "sheerness" ] } }, { "id": "templeborough", "name": "Templeborough", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1993 } ], "lat": 53.431042, "lon": -1.355187, "coordinateNote": "Approximate historical locality; not a surveyed furnace point.", "evidence": [ "templeborough", "sheffieldWitness" ], "note": "Last cast 25 November 1993.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "templeborough", "sheffieldWitness" ] } }, { "id": "brymbo", "name": "Brymbo", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1990 } ], "lat": 53.076636, "lon": -3.060781, "coordinateNote": "Approximate historical locality; not a surveyed furnace point.", "evidence": [ "brymbo", "brymboRoute" ], "note": "1990 closure year included; no finer date assigned.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "brymboRoute", "brymbo" ] } }, { "id": "panteg", "name": "Panteg", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1996 } ], "lat": 51.680834, "lon": -3.019646, "coordinateNote": "Coflein grid reference ST2960098500, converted from British National Grid.", "evidence": [ "panteg", "pantegRoute" ], "note": "Last steel 12 December 1996, not the 2004 cold-mill closure.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "pantegRoute", "panteg" ] } }, { "id": "clydesdale", "name": "Clydesdale · Mossend", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1991 } ], "lat": 55.819, "lon": -4.003, "coordinateNote": "Approximate historical locality; not a surveyed furnace point.", "evidence": [ "clydesdale" ], "note": "EAF conversion 1975, works closure 1991. Last melt day not established; closure-year inclusion at year precision.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "basis": "Established route and works histories, combined with contemporaneous/firsthand operating evidence; not inferred from national production or the point workbook.", "references": [ "clydesdale" ] } }, { "id": "round-oak", "name": "Round Oak", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1982 } ], "lat": 52.485908, "lon": -2.114652, "coordinateNote": "Historic England works grid SO9231187559, converted from British National Grid; approximate works locality, not furnace survey.", "evidence": [ "roundOakRoute", "roundOakEnd", "roundOakClosed", "roundOakLocation" ], "note": "EAF steelmaking with 1981-82 production documented; final closure December 1982, partial closure year included.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "references": [ "roundOakRoute", "roundOakEnd", "roundOakClosed", "roundOakLocation" ], "basis": "Plant-specific route, operating and closure evidence." } }, { "id": "duport-llanelli", "name": "Duport · Llanelli", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1981 } ], "lat": 51.681066, "lon": -4.178305, "coordinateNote": "Coflein works grid SN4950000280, converted from British National Grid; former works locality.", "evidence": [ "duportRoute", "duportEnd" ], "note": "Two EAFs documented February 1981; production ended that year. Closure year included, no later reclamation years treated as production.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "references": [ "duportRoute", "duportEnd" ], "basis": "Plant-specific route, operating and closure evidence." } }, { "id": "tinsley-special", "name": "Sheffield · Tinsley Park (special steels)", "route": "EAF", "periods": [ { "firstYear": 1981, "lastYear": 1985 } ], "lat": 53.394, "lon": -1.389, "coordinateNote": "Approximate former works locality at the later Sheffield City Airport site identified by Sheffield City Archives t06530; coarse contextual point, not surveyed furnace coordinates.", "evidence": [ "tinsleyOpen", "sheffieldWitness", "tinsleyClosure", "tinsleyDemolition" ], "note": "Former English Steel/BSC billet and special-steels works, closed in 1985; distinct from the surviving SMACC melt shop built 1977. Demolition in 1988 does not extend steelmaking.", "earlyPeriodEvidence": { "firstIncludedYear": 1981, "references": [ "tinsleyOpen", "sheffieldWitness", "tinsleyClosure", "tinsleyDemolition" ], "basis": "Plant-specific route, operating and closure evidence." } } ] }