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Signal Fact 73

The first installetion of the Sykes Lock & Block system was at Cambria Junction on the London, Chatham & Dover Railway in May 1876.

The Lock & Block system was used by that railway and also by the London, Brighton & South Coast Railway, the South Eastern Railway and the Great Eastern Railway.

Away from the London area, the system was used by the Hull & Barnsley Railway.

Midland Great Western Railway

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
MI001 Liffey Junction to Dublin North Wall
0m00c Liffey Junction MI010
0m58c Glasnevin Junction GX006
2m24c Newcomen Junction MI002
2m34c West Road Junction GX004
  end of line
MI002 connection to Amiens Street
2m24c Newcomen Junction MI001
2m46c Dublin Amiens Street (1) DS001

(1) now Dublin Connolly
MI003 North City Mills Branch
MI010 Dublin Broadstone to Mullingar
0m00c Dublin Broadstone
1m32c Liffey Junction MI001
1m54c Broombridge
3m03c Ashtown
4m33c Blanchardstown
4m70c Castleknock
5m54c Coolmine
7m13c Clonsilla
  Clonsilla Junction MI012
8m72c Lucan North (1)
10m16c Lexlip (2)
11m19c Lexlip Louisa Bridge
14m72c Maynooth
18m40c Kilcock (1st)
18m49c Kilcock (2nd)
20m75c Ferns Lock
26m35c Enfield
27m62c Nesbitt Junction MI015
30m25c Moyvalley
35m55c Hill of Down (3)
41m58c Killucan
50m17c Mullingar East Junction MI020 MI030

(1) originally Coldblow & Lucan
(2) now Lucan Confey
(3) orinally Kinnegad & Ballivor, later Kinnegad
MI011 Broadstone Goods Branch
MI012 Clonsilla to Navan East Junction
datum Dublin Broadstone
  Clonsilla Junction MI010
10m32c Dunboyne
12m52c Fairyhouse Bridge
15m72c Batterstown
18m73c Drumree
24m20c Kilmessan Junction station
  Kilmessan Junction MI013
27m25c Bective
  Navan (1st)
30m42c Navan East Junction GD021
MI013 Kilmessan Junction to Athboy
datum Dublin Broadstone
  Kilmessan Junction MI012
29m61c Trim
36m32c Athboy
MI014 Navan West Junction to Kingscourt
datum Dublin Broadstone
30m75c Navan West Junction (1) GD021
33m00c Proudstown Park
34m32c Gibbstown
36m78c Wilkinstown
39m70c Castletown Halt
43m23c Nobber
46m09c Kilmainham Wood
50m38c Kingscourt

(1) now Tara Mines Junction
MI015 Nesbitt Junction to Edenderry
datum Dublin Broadstone
27m62c Nesbitt Junction MI010
33m60c Carbury
37m20c Edenderry
MI020 Mullingar to Galway
datum Dublin Broadstone
50m17c Mullingar East Junction MI010 MI030
50m19c Mullingar
51m33c Newbrook Racecourse
58m21c Castletown
61m56c Steamstown
61m74c Streamstown Junction MI021
68m32c Moate
77m64c Athlone East Junction GX032
78m12c Athlone Midland
78m20c Athlone West Junction MI040
84m71c Thomastown (1)
91m53c Ballinasloe
101m34c Woodlawn
107m20c Attymon Junction station
  Attymon Junction MI022
113m32c Tuam Junction GX142
113m40c Athenry (2)
113m56c Ennis Junction GX140
121m33c Oranmore
126m30c Clifden Line Junction MI023
  Docks Branch Junction MI024
126m44c Galway

(1) later Carrowduff
(2) aka Athenry & Ennis Junction; Athenry & Tuam Junction
MI021 Streamstown to Clara Streamstown Junction
datum Dublin Broadstone
61m74c Streamstown Junction MI020
64m68c Horseleap
69m19c Clara (MGWR station)
69m23c Clara Exchange Platform
69m24c Streamstown Junction GX032
MI022 Attymon to Loughrea
datum Dublin Broadstone
  Attymon Junction MI020
111m26c Dunsandle
116m15c Loughrea
MI023 Galway to Clifden
datum Dublin Broadstone
126m30c Clifden Line Junction MI020
126m53c Galway (1)
  Shantalla Junction MI025
134m28c Moycullen
138m61c Ross
143m20c Oughterard
153m26c Maam Cross
160m55c Recess Hotel Platform
162m67c Recess
168m16c Ballynahinch
174m46c Clifden

(1) later Galway Ceannt
MI024 Galway Docks Branch
Docks Branch Junction MI020
Galway Docks
MI025 Shantalla Junction to Shantalla
Shantalla Junction MI023
Shantalla Quarry
MI030 Mullingar to Sligo
datum Dublin Broadstone
50m17c Mullingar East Junction MI010 MI020
50m19c Mullingar
56m29c Clonhugh (1)
57m35c Multyfarnham
60m69c Inny Junction station (2)
60m69c Inny Junction MI031
63m18c Street & Rathowen
67m52c Edgeworthstown (3)
76m14c Longford
  Longford Junction MI033
80m09c Newtownforbes
87m27c Dromod
93m05c Drumsna
97m65c Carrick-on-Shannon
106m34c Boyle
  Kilfree Junction MI034
112m42c Kilfree Junction station
120m03c Ballymote
127m62c Collooney
128m03c Collooney Junction GX144
128m60c Carrignagat Junction LN001
129m59c Ballysodare
  Sligo (1st)
134m07c Quay Branch Junction MI035
134m21c Sligo (2nd)

(1) private station for Earl of Granard
(2) originally Cavan Junction
(3) aka Mostrim
MI031 Inny Junction to Cavan
datum Dublin Broadstone
60m69c Inny Junction MI030
64m75c Float
70m09c Ballywilliam
76m15c Drumhowna
  Crossdoney Junction MI032
81m34c Crossdoney
85m47c Cavan
85m51c MGWR / GNR(I) boundary GD102
MI032 Crossdoney to Killeshandra
datum Dublin Broadstone
  Crossdoney Junction MI031
83m70c Arva Road
88m35c Killeshandra
MI033 Longford Basin Branch
Longford Junction MI030
Longford Basin
MI034 Kilfree Junction to Ballaghaderreen
datum Dublin Broadstone
  Kilfree Junction MI030
117m28c Island Road
119m15c Edmondstown
122m03c Ballaghaderreen
MI035 Sligo Quay Branch
0m00c Quay Branch Junction MI030
0m42c Sligo Goods
  MGWR / Harbour Commissioners boundary
1m01c Sligo Quay
MI040 Athlone West Junction to Westport Quay
datum Dublin Broadstone
78m20c Athlone West Junction MI020
84m01c Kiltoom
87m23c St Johns Well (1)
90m00c Knockcroghery
92m72c Ballymurry
96m20c Roscommon
101m71c Donamon
107m55c Ballymoe
112m58c Castlerea
118m55c Ballinlough
124m10c Ballyhaunis
128m58c Bekan
134m76c Claremorris South Junction GX143
135m00c Claremorris
135m06c Ballinrobe Junction MI041
135m16c Claremorris North Junction GX144
142m34c Balla
145m70c Manulla Junction MI042
145m74c Manulla Junction station
150m10c Castlebar
155m40c Islandeady
161m08c Westport Town
  Westport Junction MI044
161m40c current end of line
162m67c Westport Quay
end of line at Quay

(1) aka Nine Mile Bridge
MI041 Claremorris South Junction to Ballinrobe
datum Dublin Broadstone
  Claremorris South Junction MI040 GX143
142m05c Hollymount
147m31c Ballinrobe
MI042 Manulla Junction to Killala
datum Dublin Broadstone
145m70c Manulla Junction MI040
145m74c Manulla Junction station
150m60c Ballyvary
157m14c Foxford
166m42c Ballina MI043
174m30c Killala
MI043 Ballina Oil Terminal Branch
166m42c Ballina MI042
166m69c Oil Terminal
MI044 Westport Town to Achill
datum Dublin Broadstone
  Westport Junction MI040
168m69c Newport
  Mallaranny (1st)
179m32c Mullaranny (2nd)
187m46c Achill


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