Last update 24 August 2024
Please select a starting letter from the links below:
| ELR | Line name | Mileages | Datum | Notes |
|---|---|---|---|---|
| DAC | Exeter and Devonport Line (Devon and Cornwall Line) | 173.50 - 230.13 | Waterloo | Now includes SBX |
| DAE | Darlington and Eastgate-In-Weardale Line | see separate portions | ||
| DAE1 | Darlington Park Gate Junction to Shildon South Junction | 0.00 - 8.28 | Park Gate Junction | |
| DAE2 | Shildon South Junction to Wear Valley Junction mileage change | 8.28 - 31.42 | Park Gate Junction | |
| DAE3 | Wear Valley Junction to Eastgate | 0.00 - 15.79 | Wear Valley Junction | |
| DAE4 | Eastgate to Wearhead | 15.79 - 22.03 | Wear Valley Junction | |
| DAK | Dalry and Kilmarnock Branch | 23.06 - 33.44 | Bridge Street Station | |
| DAL | Dalmonach Branch | 0.00 - 0.62 | Jamestown Junction | |
| DAM | Dawsholm Branch | 100.78 - 105.27 | Carlisle? | |
| DAN | Danygraig Depot | 46.22 - 46.71 | Taff Vale Extension Junction | |
| DAP | Dalton Junction to Park South Junction Curve (Barrow avoiding line) | 0.00 - 0.76 | Dalton Junction | |
| DAS | Darvel and Strathaven Branch | see separate portions | ||
| DAS1 | Hurlford to Darvel (structure 45) | 35.62 - 47.41 | Bridge Street Station via Dalry | |
| DAS2 | Darvel to Stonehouse junction with SML | 47.41 - 54.27 | Bridge Street Station via Dalry | |
| DAT | unknown route near Liverpool | see separate portions | ||
| DAT1 | unknown | 183.10 - 183.37 | London Euston | |
| DAT2 | unknown | 183.15 - 183.20 | London Euston | |
| DAU | Daubhill Coal Branch (Rumworth & Daubhill) | 8.16 - 8.66 | Kenyon Junction | |
| DAW | Dawsholm Branch | ?? - ?? | Kelvindale Paper Works siding | |
| DAZ | Dare Branch/Cwmaman Branch | 0.00 - 5.29 | Gelli Tarw Junction | |
| DBA | Durham & Bishop Auckland Line | 0.00 - 10.20 | Bishop Auckland | |
| DBB | Denbigh Branch | 0.00 - 18.55 | junction with VOC near Denbigh | |
| DBK | Dumbuck Branch | 0.00 - 0.21 | Branch Junction | |
| DBM | Dunstable Branch Midland Region (Leighton Buzzard to Dunstable) | 0.00 - 6.67 | Leighton Buzzard | |
| DBN | Dumbarton South Goods Depot Branch | 115.56 - 116.02 | Carlisle via Rutherglen Glasgow Central Low Level and Old Kilpatrick | |
| DBP | Derby to Birmingham (Proof House Junction) Line | see separate portions | ||
| DBP1 | Derby to Kingsbury Junction | 0.00 - 29.39 | Derby London Road Junction | |
| DBP2 | Kingsbury Junction to Water Orton | 29.39 - 33.23 | Derby London Road Junction | |
| DBP3 | Whitacre Junction to Proof House via Water Orton | 31.69 - 41.59 | Derby London Road Junction via Whitacre Junction | |
| DBS | Dudley Hill (Barrets Siding) | ?? - ?? | ||
| DBZ | Dimbath Branch | 0.00 - ≈0.77 | Dimbath Junction | Never completed |
| DCB | Dundonald Colliery Branch (Cardenden) | 0.00 - 1.02 | Glencraig Junction | |
| DCF | Down Cambridge Flyover | 32.53 - 34.05 | Kings Cross | Briefly renamed DRF in error in June to August 2024 |
| DCG | Dalry Connecting Branch | 0.46 - 1.04 | Princes Street | |
| DCL | Didcot and Chester Line | 53.00 - 143.01 | Paddington via Didcot | |
| DCW | Dawsholm Castle Chemical Works Branch (Glasgow Maryhill Park) | ?? - ?? | ||
| DDB | Devonport Dockyard Branch | ≈247.42 - 249.40 | Paddington via Box and Plymouth Millbay (reverse) | Formerly DYK |
| DDF | Dundee Broughty Ferry to Forfar North Junction Line | 0.39 - 17.43 | Broughty Ferry Pier | |
| DDN | Dundee Ninewells Junction to Ardler Junction Line | 0.00 - 16.13 | Ninewells Junction | |
| DDS | Dr Day's Sidings | 0.26 - 0.47 | Bristol Temple Meads | |
| DDY | Doncaster Down Yard | 154.13 - 155.28 | Kings Cross | |
| DEB | Deanside Branch | 0.00 - 0.38 | Junction with CND1 | |
| DEC | Didcot East Curve | 52.69 - 53.71 | Paddington | |
| DEE | Chapeltown Branch | 166.02 - 166.36 | St Pancras | |
| DEH | Delph Branch | 0.00 - 1.52 | Greenfields Junction | |
| DEL | Delburn Branch | 0.00 - 1.21 | Motherwell South Junction | |
| DEM | Denham and Uxbridge Branch | 0.00 - 2.03 | Denham West Junction | Formerly DUX |
| DEN | Denaby Branch | 0.00 - 11.43 | Wrangbrook Junction | |
| DER | Derwent Branch | 4.13 - 10.16 | Maryport with reversal at Bulgill | |
| DET | Dechmont Briquette Works Branch (Newton) | 0.00 - 1.67 | Newton | 70c to Dechmont Colliery, a further 77c to Loanend Colliery |
| DEU | Delburn Branch | 0.00 - 0.40 | Motherwell South Box | Branch serving Delburn Engineering Works and Glasgow Rolling Stock Works |
| DEW | Dewshill Branch | 0.00 - 2.25 | Dewshill Branch Junction | Off Salsburgh branch Caledonian Railway |
| DEX | Derbyshire Extension Branch | 123.72 - 154.51 | Kings Cross | Part formerly NGC2 |
| DEY | Denny Branch | 0.00 - 3.07 | Denny Branch (North) Junction | |
| DFD | Dover Ferry Dock Junction to Dover Old Train Ferry Dock (Dover Pier Goods Branch) | 77.72 - 78.03 | Victoria via Herne Hill | |
| DFN | Dufftown Branch (Keith) | 53.05 - 64.13 | Aberdeen | |
| DFS | Dingwall Fodderty Junction to Strathpeffer Line | 2.31 - 5.19 | Dingwall | |
| DGB | Deansgate Goods Branch | 0.00 - 0.26 | Castlefield Junction | |
| DGD | Devonport (Kings Road) Goods Branch | 0.00 - 0.21 | Devonport Goods Junction | |
| DGL | Durham Goods (Belmont) Branch | 0.00 - 2.19 | Belmont Junction | |
| DGW | Dalmarnock Gasworks Branch (Glasgow London Road/Bridgeton Goods) | ?? - ?? | ||
| DGZ | Devonport (Albert Road) Goods Branch | 248.22 - 248.43 | Paddington via Box, Plymouth Millbay (reverse) and Devonport (reverse) | |
| DHB | Darras Hall Branch | 0.00 - 1.21 | Ponteland Junction | |
| DHF | Denbigh Hall Flyover | 0.68 - 1.71 | Bletchley Flyover Junction | |
| DIC | Dinnington Colliery Branch | 3.16 - 4.27 | Brancliffe East Junction | |
| DIG | Digby Branch | 127.69 - 128.39 | St Pancras via Toton | |
| DIL | Dillichip Branch | 0.00 - 0.29 | Alexandria Junction | |
| DIY | Diggle Colliery Branch | 0.00 - 0.70 | Pennington South Junction | West Leigh Junction to Diggle Colliery |
| DJD | Denton Junction to Dukinfield Line | 4.13 - 5.19 | Heaton Norris Junction | |
| DJH | Daisyfield Junction and Hellifield Line | 11.09 - 34.66 | Farington Curve Junction | |
| DJL | Dolphinton Junction to Leadburn Branch [Caledonian route] | 0.00 - 10.76 | Dolphinton Junction | |
| DJL1 | Dolphinton Junction to Leadburn Branch [North British route] | 0.00 - 9.72/20.56 | Leadburn Junction | |
| DJM | Dubton to Montrose Branch | 0.00 - 2.79 | Dubton Junction | |
| DJN | Duckmanton No 7 Railway | 0.10 - 0.20 | Duckmanton North Junction to Duckmanton East Junction | |
| DJO | Denton Junction to OA&GB Junction Spur | see separate portions | ||
| DJO1 | Denton Junction to Crowthorne Junction | 4.10 - 5.28 | Heaton Norris Junction | |
| DJO2 | Crowthorne Junction to OA&GB Junction | 0.53 - 1.50 | Stockport Junction, Guide Bridge | |
| DJP | Dovey Junction to Pwllheli | 78.60 - 132.70 | Whitchurch | Briefly also marked in km from Sutton Bridge Junction; ERTMS signalling system still uses km |
| DJR | Duckmanton No 8 Railway | ?? - ?? | ||
| DJR1 | Duckmanton No 6 Railway | ?? - ?? | Duplicates DMJ | |
| DJR2 | Duckmanton No 7 Railway | ?? - ?? | Duplicates DJN | |
| DJW | Duffield Junction to Wirksworth Quarry Branch | 132.79 - 142.26 | St Pancras | |
| DKS | Various Docks lines | see separate portions | ||
| DKS1 | Newport Alexandra Docks | n/a | n/a | Code only used to identify 'Docks' |
| DKS2 | Cardiff Docks | n/a | n/a | Code only used to identify 'Docks' |
| DKS3 | Barry Docks | n/a | n/a | Code only used to identify 'Docks' |
| DKS4 | Port Talbot Docks | n/a | n/a | Code only used to identify 'Docks' |
| DKS5 | Swansea Docks | n/a | n/a | Code only used to identify 'Docks' |
| DKS6 | Millbay Docks/Plymouth Docks Branch | n/a | n/a | Code only used to identify 'Docks' |
| DLA | Dowlais Loop | 0.00 - 0.17 | Dowlais Loop Junction | Formerly DLZ1 |
| DLB | Barrow Dock Loop | 0.00 - 0.20 | St Lukes Junction | |
| DLN | Dalmellington Branch | 52.70 - 54.49 | Bridge Street Station via Dalry | |
| DLO | Darnall Depot | 0.00 - 0.70 | Woodburn Junction | |
| DLR | Dunure Light Railway | 42.26 - 62.01 | Bridge Street Junction | |
| DLS | Duddeston Junction to Lawley Street Sidings Branch | 40.38 - 41.19 | Derby | |
| DLT | Duffryn Llynvi and Porthcawl Tramway | ?? - ?? | ||
| DLY | Dursley Branch | 105.38 - 108.02 | Derby | |
| DLZ | Dowlais Loop | 25.58 - 25.75 | Abergavenny Junction | Formerly DLZ2 |
| DLZ | Dowlais Loop | see separate portions | ||
| DLZ1 | Dowlais Loop | Now DLA | ||
| DLZ2 | Dowlais Top Junction | Now DLZ | ||
| DMB | Douglas and Muirkirk Branch | 0.00 - 19.20 | Smyllum East Junction | |
| DMJ | Duckmanton No 6 Railway | 0.18 - 0.21 | Duckmanton South Junction | |
| DML | Dinas Mawddwy Light Railway/Mawddwy Branch | 0.00 - 6.63 | Cemmes Road | |
| DMP | Dewsbury Market Place Branch | 41.14 - 42.29 | Manchester Victoria via Rochdale | |
| DMY | Dalmeny Line (Winchburgh to Dalmeny) | 34.53 - 39.06 | Glasgow Queen Street High Level | |
| DNB | Dornoch Branch | 0.00 - 7.51 | The Mound Junction | |
| DNC | Derby North Curve | 128.10 - 128.33 | St Pancras | |
| DNG | Drinnick Mill Goods Branch | 291.31 - 291.60 | Paddington via Box and Plymouth Millbay (reverse) | |
| DNJ | Dalry and North Johnstone Line | 0.00 - 11.60 | Cart Junction | |
| DNS | Dunston Staithes (New Side) Branch | 0.00 - 0.70 | Norwood Junction | |
| DNT | Darlington to Tebay Line | 0.00 - 49.75 | Hopetown Junction | |
| DOA | Doura Branch | 0.30 - 5.50 | Dubbs Junction | |
| DOC | King's Lynn Docks Branch | 0.00 - 0.45 | junction with KLY | |
| DOE | Doe Lea Branch and Extension | 0.00 - 2.41 | Pleasley Colliery West Junction | |
| DOG | (Former) Loco Sidings under Dog's Home Viaduct | 1.00 - 1.23 | ||
| DOI | Deans Oil Works Branch | 0.00 - 0.20 | 13ch west of Livingston station | |
| DOK | Dock Storage South Junction to Kings Junction | 4.26 - 5.60 | Roath Branch Junction | Now in ROA |
| DOL | Doncaster and Leeds Line | see separate portions | ||
| DOL1 | Doncaster Marshgate Junction to Wakefield 175m 32ch | 156.28 - 175.32 | Kings Cross | Note that the 1967 rebuilding at Leeds makes it difficult to give exact definitions for this line |
| DOL2 | Wakefield 175m 32ch to Leeds | 175.32 - 185.70 | Kings Cross | Extended in 2001 from 185.05. Now includes DOL3 and LWW. Note that the 1967 rebuilding at Leeds makes it difficult to give exact definitions for this line |
| DOL3 | Closed Line | 185.03 - 185.57 | Kings Cross | Now in DOL2. Note that the 1967 rebuilding at Leeds makes it difficult to give exact definitions for this line |
| DOL4 | Gelderd Road Junction to Leeds West Junction | 40.76 - 42.47 | Manchester Victoria via Huddersfield | Note that the 1967 rebuilding at Leeds makes it difficult to give exact definitions for this line |
| DOV | Dovecliffe Colliery Branch | 9.76 - 13.77 | Woodend Junction Sheffield | off SMC |
| DOW | Dowlais Works Branch | ?? - ?? | Dowlais Works Junction | |
| DOW | Doncaster and Wrawby Junction Line | 0.00 - 33.34 | Doncaster Marshgate Junction | |
| DPB | Dowlais Pits Branch | 15.46 - 15.72 | Cardiff Bute Road | |
| DPH | Dyce to Peterhead Branch | 6.07 - 44.22 | Aberdeen | |
| DPJ | Dudley Junction to Pleck Junction Line | 0.00 - 5.42 | Dudley Junction | |
| DPS | Didcot Power Station | 0.000km - 3.127km | Foxhall Junction | |
| DPZ | Dartmoor and Plymouth Railway | 243.15 - 245.21 | Paddington | = Lee Moor Tramway ?? |
| DQB | Dunduff Quarry Branch | 0.00 - 2.20 | Blackwood (Lanarkshire) | |
| DQN | Dalquhurn Branch | 17.46 - 18.21 | Glasgow Queen Street High Level via Cowlairs and Maryhill | |
| DRA | Drax Power Station Branch | see separate portions | ||
| DRA1 | Drax Power Station Approach Tracks | 0.00 - 4.40 | Drax Branch Junction | |
| DRA2 | Drax Power Station MGR Loop | 4.40 - 6.23 | Drax Branch Junction | |
| DRF | Drumbowie Fork | 0.00 - 0.26 | Bellside Junction | |
| DRF | Down Royston Flyover | 32.53 - 34.05 | Kings Cross | Briefly renamed in error from DCF June to August 2024 |
| DRM | Drumpeller Branch | 0.00 - 0.19 | Drumpeller Railway Junction | |
| DRN | Waterloo and City Line | 0.00 - 1.46 | Waterloo | The Drain |
| DRO | Droppingwell Colliery Branch | 0.00 - 1.72 | Grange Lane | |
| DRS | Dewsbury Railway Street Goods Yard Branch | see separate portions | ||
| DRS1 | Dewsbury East Junction to 0m 14ch | 0.00 - 0.14 | Dewsbury East Junction | |
| DRS2 | Dewsbury 0m 14ch to mileage change | 0.14 - 0.27 | Dewsbury East Junction | |
| DRS3 | Mileage change to Dewsbury Railway Street Goods Yard | 0.00 - 0.76 | Mileage change | |
| DRT | Dalricket Branch | 0.00 - 2.31 | Creach Junction | From Knockshinnoch Colliery Branch, New Cumnock |
| DRU | Drumbowie Branch | 0.00 - 4.59 | Drumbowie Junction | |
| DSB | Dumfries Branch | 0.00 - 14.40 | Lockerbie Junction | |
| DSC | Douglas Colliery Branch | ?? - ?? | Douglas station | |
| DSD | Dinting South Junction to Dinting East Junction Curve | 0.72 - 1.05 | Glossop | |
| DSE | Deal Street and Edge Hill Line | 1.57 - 31.12 | Liverpool Lime Street | |
| DSF | Denver to Stoke Ferry Line | 1.56 - 8.65 | Downham Market | |
| DSK | Denny South Fork | 108.77 - 109.24 | Carlisle via Ravenscraig No 1 | |
| DSN | Darlington and Saltburn Line | see separate portions | ||
| DSN1 | Darlington South Junction to Eaglescliffe South Junction | 0.29 - 8.58 | Darlington | 8.58 - 10.13 is LEN3 |
| DSN2 | Stockton Cut Junction to Redcar mileage change | 10.13 - 21.72 | Darlington | 8.58 - 10.13 is LEN3 (some structures carry both references) |
| DSN3 | Redcar mileage change to Saltburn | 22.16 - 27.57 | Darlington | |
| DSN4 | Saltburn to former end of line | 27.57 - 27.62 | Darlington | |
| DSO | Dunston Staithes (Old Side) Branch | 0.00 - 0.72 | Norwood Junction | |
| DSS | Down Side Sidings, Euston | 0.29 - 0.49 | Euston | |
| DST | Dewsbury Saville Town Branch | 185.44 - 188.07 | St Pancras | |
| DSW | Springburn Branch (Springburn to Barnhill) | 102.58 - 103.46 | Carlisle via Whifflet | Included within CBD2 |
| DSY | Down Sidings, Westbury | 109.70 - 110.13 | Paddington via Melksham | |
| DTD | Dufftown Distillery (Mortlach) Branch | ?? - ?? | ||
| DTE | Dufftown to Elgin via Craigellachie Line | 64.13 - 80.24 | Aberdeen | |
| DTL | Derby to Leeds Line | 194.37 - 195.01 | St Pancras | Hunslet Goods Junction to Hunslet Lane Goods |
| DUB | Dunyston Colliery Branch | 4.54 - 5.76 | Drumbowie Junction | From Dunsyston Junction |
| DUH | Dudley Hill Branch | 190.60 - 192.33 | Kings Cross via Birkenshaw Line | |
| DUN | Dunball Wharf Branch | 148.77 - 149.33 | Paddington via Box | |
| DUR | Durston Loop | 135.02 - 137.29 | Paddington via Melksham | |
| DUX | Denham and Uxbridge Branch | Now DEM | ||
| DUY | Decoy Yard (Doncaster Up Yard) | 153.69 - 155.34 | Kings Cross | |
| DVA | Dearness Valley Branch | ?? - ?? | ||
| DVB | Dare Valley Branch | 23.65 - 26.20 | Cardiff Bute Road | |
| DVL | Darvel Branch | 35.62 - ?? | Glasgow Bridge Street via Dalry | |
| DVR | Dearne Valley Railway | see separate portions | ||
| DVR1 | Crofton West Junction to Bessacarr Junction | 49.49 - 71.51 | Manchester Victoria | |
| DVR2 | unknown | ?? - ?? | ||
| DVR3 | Spur | 70.00 - 70.58 | Manchester Victoria | |
| DWC | Didcot West Curve | 0.00 - 0.33 | Foxhall Junction | |
| DWF | Deptford Wharf | 0.00 - 1.43 | New Cross Gate | Substructures. Listed to 2.47 |
| DWS | Dore West Junction to Dore Station Junction Curve | 0.00 - 0.60 | Dore West Junction | |
| DWW | Dalston Kingsland Hackney Wick and North Woolwich Line | see separate portions | ||
| DWW1 | Dalston Junction to Navarino Road | 1.52 - 2.22 | Broad Street, extended back from Dalston Western Junction | Line remiled from 15 June 1986 to give continuous mileage run |
| DWW2 | Navarino Road to North Woolwich | 1.11 - 8.57 | Liverpool St, extended back from Stratford South Junction | Line remiled from 15 June 1986 to give continuous mileage run |
| DWY | Doncaster Wood Yard | 154.52 - 155.08 | Kings Cross | |
| DYK | Devonport Dockyard Branch | Now DDB | ||
| DYK | Dykehead Branch | 0.00 - 4.19 | Dykehead Branch Junction | |
| DYL | Dykehead Loop | 0.00 - 0.36 | Langdale Exchange Sidings, Greengairs | To Dykehead branch at 3.06 |
| DYZ | Dynevor Junction to Cardonnel East Junction | 19.23 - 19.44 | R&SB Junction |