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RailRef Line Codes GD

Great Northern Railway (Ireland)

Signal Fact 12

Brunel designed a Disc and Crossbar signal that gave a positive danger or positive clear indication depending on which way it was turned.

It was in use on the Great Western Railway by February 1841.

This page should be regarded as “Work in Progress”. The webmaster will welcome additional information for this page.

In the list below the information is set out in tabular form, spread over four columns. The column entries are -

RailRef The Line Code used in RailRef system.
Line Detail The principal locations included within the Line Code. They are arranged in 'down' direction order. Locations shown are primarily stations and junctions to allow easy cross check against published atlases. Signal box names appear in italics where these are 'intermediate' to stations or have been shown to facilitate links from other pages on this web site. The inclusion of a station or junction name does not imply that there was always a signal box of that same name!
SBR The section reference used in the relevant Signal Box Register published by the Society.
ELR The corresponding Engineer's Line Reference(s). This will be blank for railways that never came within British Railways terms of reference. It will also be blank where British Railways had no surviving responsibility for infrastructure at the time the ELR system came into use.

RailRef Line Detail SBR ELR
GD001 Dublin Amiens Street (1) to Drogheda Old Station
0m00c Dublin Amiens Street (1) DS001 MI002
0m21c junction with Loop Line GD002
  Suburban Junction GD003
0m25c 1844 temporary terminus
0m57c East Wall Junction GD004 GX012
  Fairview Depot connection
1m00c Staff Halt
1m15c Clontarf Road
1m20c Fairview Depot exit
1m54c Clontarf
  Killester (1st)
2m28c Killester (2nd)
3m00c Harmonstown
3m56c Raheny
4m40c Kilbarrack
4m58c Howth Junction GD006
4m66c Howth Junction station (2)
5m22c Baldoyle
6m55c Portmarnock
9m04c Malahide
11m37c Donabate
13m71c Rush & Lusk
16m01c Baldungan
17m20c Skerries Golf Club Halt
17m76c Skerries
  Ardgillan
21m58c Balbriggan
24m04c Gormanston
25m66c Butlin's Mosney (3)
27m11c Laytown
28m47c Bettystown
31m41c Old Station Junction GD020
  Drogheda (1st)
(1) now Dublin Connolly
(2) originally Junction
(3) now Mosney
   
GD002 GNR(I) 1891 Connection (Loop Line)
0m00c Amiens Street Junction station
0m05c Amiens Street Junction (Newcomen Bridge Lines)
0m07c Amiens Street Junction (North Strand Line)
0m11c Junction with main line GD001
   
GD003 CIE 1981 connection
Ossary Road Junction GX005
Suburban Junction GD001
   
GD004 East Wall Branch
0m00c Church Road Junction GX001
0m32c East Wall Junction GD001
   
GD005 Fairview Depot Lines
   
GD006 Howth Junction to Howth
0m00c Howth Junction GD001
0m07c Howth Junction station
0m69c Bayside
1m60c Sutton (1)
  Howth (1st)
3m40c Howth (2nd)
(1) originally Sutton & Baldoyle, later Baldoyle & Sutton
   
GD007 Hill of Howth Tramway
Sutton
Howth
   
GD020 Drogheda to Dundalk
datum Dublin Amiens Street (Connolly)
31m41c Old Station Junction GD001
31m47c Drogheda Junction (1) GD021
31m57c Drogheda
32m45c Newfoundwell
32m46c Cement Branch Junction GD022
41m54c Dunleer
43m51c Dromin Junction station
  Dromin Junction GD023
47m14c Castlebellingham
53m43c Dundalk South Junction GD024
53m68c Square Crossing GD070
53m76c Dundalk (1st)
54m10c Dundalk Central Junction GD071
54m28c Dundalk (2nd) (2) GD040
(1) now Drogheda MacBride
(2) now Dundalk Clarke
   
GD021 Drogheda to Oldcastle
0m00c Drogheda Junction GD020
4m65c Duleek
8m40c Lougher Halt
11m54c Beauparc
16m52c Navan (1st)
16m73c Navan (2nd)
17m20c Navan Junction
17m30c Navan East Junction MI012
17m49c Navan West Junction (1) MI014
23m01c Ballybeg
  Kells
  Virginia Road
  Oldcastle

(1) aka Nevistown Junction, Kingscourt Junction and now Tara Mines Junction
   
GD022 Boyne Cement Branch
0m00c Cement Branch Junction GD020
1m08c CIE / Cement company boundary
   
GD023 Dromin to Ardee
0m00c Dromin Junction GD020
4m66c Ardee
   
GD024 Dundalk South Junction to East Junction
0m00c Dundalk South Junction GD020
0m36c Dundalk East Junction GD070
   
GD025 Cambrieville Brewery Branch
   
GD026 GNR Workshops
   
GD027 Ardee Road Goods Branch
   
GD040 Dundalk to Belfast Great Victoria Street
datum Dublin Amiens Street (Connolly)
54m28c Dundalk (1) GD020
58m00c Mount Pleasant
59m47c CIR / NIR and national boundary
62m40c Adavoyle
  Wellington Inn
69m20c Bessbrook (2)
70m42c Newry Armagh Road (3)
71m66c Goraghwood Junction GD110
71m68c Goraghwood
73m43c Knockarney Crossing Halt
76m05c Augheranter Crossing Halt
76m73c Poyntzpass
78m05c Acton Crossing Halt
79m49c Scarva
79m69c Scarva Junction GD041
81m79c Tanderagee (4)
87m15c Portadown Junction GD090 GD100
87m24c Portadown (2nd & 4th) (5)
87m55c Portadown (1st & 3rd)
88m48c Seagoe
91m35c Goodyear
92m53c Lurgan (6)
95m40c Pritchard's Bridge
98m12c Moira
100m00c Damhead (7)
101m13c Broomhedge
102m41c Maze (8)
103m35c Knockmore Junction GD042 GD044 GD060
104m06c Knockmore Junction Halt (9)
105m06c Lisburn GD044
106m04c Hilden Halt
106m47c Lambeg
107m40c Derriaghy Halt
108m41c Dunmurry
109m40c Finaghy Halt
110m22c Balmoral
111m13c Adelaide
111m75c Central Junction (2nd)GD045 GD046
112m00c Central Junction (1st) (10)
112m17c Westlink Junction GD047
112m44c Belfast Great Victoria Street (2nd)
112m50c Belfast Great Victoria Street (1st)
(1) now Dundalk Clarke
(2) originally Newry, later Monaghan Road, then Newry Main Line, now Newry
(3) originally Mullaghlass
(4) originally Madden Bridge, then Tanderagee & Gilford
(5) 4th station aka Portadown (Craigavon West)
(6) aka Lurgan (Craigavon East)
(7) original station The Damhead
(8) originally Maze Platform
(9) later Knockmore
(10) originally Ulster Junction
   
GD041 Scarva to Banbridge
datum Scarva station
Scarva Junction GD040
Laurencetown
Lenaderg
Smyth's Siding Halt
Banbridge (BJR)
Banbridge Junction GD042
   
GD042 Knockmore to Castlewellan
Knockmore Junction GD040 GD044 GD060
Canal Bridge
Newport Halt
Hillsborough
Ballygowan Halt
Magherabeg
Dromore
Ashfield
Mullafernaghan
Banbridge Junction GD041
Banbridge
Corbet
Poland's Bridge
Katesbridge
Ballyroney
Drumadonald
Ballyward
Leitrim
Savage's Bridge
Castlewellan
GNR(I) / BCDR boundary BD009
   
GD044 Knockmore Junction to Lisburn via third line
datum Dublin Amiens Street (Connolly)
103m35c Knockmore Junction GD040 GD060
104m12c Knockmore
105m06c Lisburn GD040
   
GD045 Central Junction to Ballymacarrat Junction
from 1976 datum Dublin Amiens Street (Connolly) (mileages in brackets)
0m00c (111m75c) Central Junction (1) GD040
0m15c (112m15c) City Junction GD047
0m22c (112m27c) City Hospital
0m29c (112m34c) Windsor
0m49c (112m54c) Botanic
1m01c (113m01c) Ormeau
1m23c (113m24c) Maysfields Goods
1m36c (113m36c) Belfast Central
1m50c (113m50c) East Bridge Junction GD048
1m58c (113m58c) Lagan Junction NC003
2m19c (114m19c) Bridge End
2m27c (114m27c) Ballymacarrett Junction BD001
(1) originally Ulster Junction
   
GD046 Grosvenor Road Goods Branch
111m75c Central Junction GD040
   
GD047 Blythefield Curve
0m00c Westlink Junction GD040
0m17c City Junction GD045
   
GD048 East Bridge Junction to Belfast Quay
0m00c East Bridge Junction GD045
0m18c Queens Bridge
0m38c Donegall Quay Junction (boundary GNR / Harbour Commissioners)
   
GD060 Knockmore to Antrim
0m00c Knockmore Junction GD040 GD042 GD044
1m61c Brookmount
3m18c Brookhill Halt
4m24c Meeting House Halt
5m29c Ballinderry
6m47c Legatiriff Halt
8m49c Glenavy
10m74c Crumlin
11m75c Siding Junction GD061
13m16c Aldergrove
  Aldrgrove Junction GD062
15m53c Millars Bridge Halt
18m40c Antrim Junction NC020
   
GD061 Gortnagallon Branch
Siding Junction GD060
Gortnagallon
   
GD062 Aldergrove Branch
Aldergrove Junction GD060
Aldergrove Aerodrome
   
GD070 Dundalk to Enniskillen
datum Dundalk Barrack Street
0m11c Windmill Junction (GNR / DNGR boundary) DN001
0m00c junction from Barrack Street Goods (datum point)
  Dundalk East Junction GD024
  Square Crossing GD020
1m34c Dundalk West Junction GD071
  Kellybridge Halt
  Inniskeen
  Inniskeen Junction GD072
  Blackstaff Halt
  Culloville
  Castleblayney
  Ballybay
  Shantonagh Junction (1)GD073
  Monaghan Road
  Newbliss
  Clones East Junction GD100
  Clones GD102
  Newtownbutler
  Lisnaskea
  Maguiresbridge
  Lisbellaw
  Enniskillen Junction LN001
  Enniskillen (2nd) GD080
(1) aka Shantona Junction
   
GD071 Dundalk Central Junction to West Junction
0m00c Dundalk Central Junction GD020
0m36c Dundalk West Junction GD070
   
GD072 Iniskeen to Carrickmacross
datum Inniskeen
Inniskeen Junction GD070
Essexford
Carrickmacross
   
GD073 Shantonagh Junction to Cootehill
Shantonagh Junction (1) GD070
Rockcorry
Cootehill
(1) aka Shantona Junction
   
GD080 Enniskillen to Londonderry Foyle Road
datum Dundalk Barrack Street
Enniskillen (2nd) GD070
Enniskillen (1st)
Gortaloughan Halt
Drumcullion Halt
Ballinamallard
Bundoran Junction
Bundoran South Junction GD081
Bundoran East Junction GD082
Trillick
Dromore Road
Fintona Junction GD083
Omagh Junction GD090
Omagh (2nd)
Omagh (1st)
Mountjoy Halt
Newtownstewart
Victoria Bridge
Trafalgar (1)
Sion Mills
Finn Valley Junction GD084
Strabane
Porthall
Carrickmore
St Johnston
Carrigans
Londonderry Cow Market
Londonderry (Gallows Strand)
Foyle Road (2)
(1) private station
(2) originally Londonderry Foyle Road
   
GD081 Bundoran Junction to Bundoran
datum Bundoran Junction station
Bundoran South Junction GD080
Bundoran West Junction GD082
Irvinestown
Drumadravy
Kesh
Pettigo
Castlecaldwell (1st)
Castlecaldwell (2nd)
Magheramenagh Castle
Belleek
Ballyshannon
Bundoran
   
GD082 Bundoran North Curve
0m00c Bundoran East Junction GD080
Bundoran West Junction GD081
   
GD083 Fintona Junction to Fintona
0m00c Fintona
0m55c Fintona Junction GD080
   
GD084 Finn Valley connection (Strabane)
Finn Valley Junction GD080
   
GD090 Portadown to Omagh
datum Portadown Station
0m09c Portadown Junction GD040 GD100
Portadown temporary station
Annaghmore
Vernersbridge (1)
Trew & Moy
Dungannon (1st)
Dungannon (2nd)
Dungannon Junction GD091
Donaghmore
Pomeroy
Carrickmore
Sixmilecross
Beragh
Market Branch Junction GD093
Omagh Junction GD080
(1) originally Verner

Article: Railway World, August 1970.
   
GD091 Dungannon to Cookstown
datum Dungannon
Dungannon Junction GD090
Coalisland
Stewartstown
Killymoon Golf Links
Cookstown Goods Junction GD092
Cookstown Junction NC030
Cookstown GNR Terminus
   
GD092 Cookstown Goods
Cookstown Goods Junction GD091
Cookstown Goods
   
GD093 Omagh Goods Branch
Market Branch Junction GD090
   
GD100 Portadown to Clones
datum Portadown Station
0m09c Portadown Junction GD040 GD090
  Richhill
  Retreat Halt
  Armagh Market Hill Junction GD110
  Armagh (1)
  Armagh Keady Junction GD101
  Killylea
  Tynan (2)
  Glaslough
  Monaghan (1st)
  Monaghan (2nd)
  Smithborough
  Clones East Junction GD070
(1) aka Armagh Railway Street
(2) originally Tynan, Caledon & Middletown, later Tynan & Caledon
   
GD101 Armagh to Castleblaney
Armagh Keady Junction GD100
Irish Street Halt
Milford
Ballyards Halt
Tassagh Halt
Keady
Carnagh
Creaghanroe
Castleblayney
   
GD102 Clones to Cavan
Clones GD070
Redhills
Ballyhaise (1)
Belturbet Junction GD103
Loreto College Halt
GNR(I) / MGWR boundary MI031
(1) originally Belturbet Junction
   
GD103 Ballyhaise to Belturbet
datum Ballyhaise station
Belturbet Junction GD102
Belturbet
   
GD110 Warrenpoint to Armagh
0m00c Warrenpoint (1st)
0m07c Warrenpoint (2nd)
1m30c Narrow Water Halt
  Green Island
5m70c Kilmorey Street Junction GD112
6m26c Newry Dublin Bridge
6m48c King Street Junction GD111 DN010
6m78c Newry Edward Street DN010
10m26c Goraghwood Junction GD040
10m28c Goraghwood
  Ballydougherty Halt
  Loughgilly (1st)
16m13c Loughilly (2nd) (1)
  Markethill
  Hamiltonsbawn
  Armagh (1st)
  Armagh Market Hill Junction GD100
(1) subsequently Glen Anne
   
GD111 King Street Junction to Bridge Street Junction
King Street Junction GD110 DN010
   
GD112 Kilmorey Street Branch
0m00c Kilmorey Street Junction GD110
0m10c Kilmorey Street Goods
   
GD120
DL001
NC090
Londonderry to Strabane
See County Donegal Joint Railway DL001 for detail.
   
GD121
DL010
NC091
Strabane to Killybegs
See County Donegal Joint Railway DL010 for detail.
   
GD122
DL011
NC092
Stranolar to Glenties
See County Donegal Joint Railway DL011 for detail.
   
GD123
DL012
NC093
Donegal to Ballyshannon
See County Donegal Joint Railway DL012 for detail.
   
GD124
DL020
NC094
Strabane to Letterkenny
See County Donegal Joint Railway DL020 for detail.
   

 




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