SRS Logo    The Signalling Record Society

Home Page    Railway Company Lists    County Lists

RailRef Line Codes BM

Brecon & Merthyr Railway

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.

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
BM001 Brecon - Deri Junction
0m00c B&M / N&B boundary NH001
0m09c Brecon Free Street
0m53c Heol Lladron Junction BM002
1m75c Groesffordd Halt
  Tallyllyn Brynderwen
3m75c Talyllyn Junction station
3m79c Talyllyn West Junction BM003
4m33c Talyllyn East Junction CM035
4m75c Talybont-on-Usk
10m16c Pentir Rhiw
14m13c Torpantau
15m59c Dolygaer Halt
17m32c Pontsticill Junction station
17m36c Pontsticill Junction BM010
18m65c Pant Junction BM020

mileage change, datum Cardiff East Dock
27m46c Pant Junction
27m37c Pant (orig Dowlais)
25m64c Dowlais Top NW273
25m21c Rhymney Limestone Branch Siding BM021
24m35c Pantywaen Junction
23m48c Fochriw Junction BM022
23m03c Fochriw
21m02c Ogilvie Colliery Halt
20m53c Ogilvie Village Halt
20m34c Ogilvie Colliery Junction
20m30c Deri Junction RR012
BND: Brecon - Pant Junction
BAP: Pant Junction - Deri Junction

Article: Railway Magazine 1951 June (Talyllyn).
BM002 Brecon (Watton) Goods Branch
0m00c B&M / N&B boundary BM001 NH001
0m09c Brecon Free Street
  Watton Goods
0m53c Heol Lladron Junction BM001
BM003 Talyllyn Loop
datum Whitchurch Cambrian Junction
107m79c (4m14c) B&M - CR boundary CM030
108mxxc (3m75c) Talyllyn (CR)
108m27c (3m79c) Talyllyn West Junction BM001
Mile post mileages in brackets are taken from sheet 57 (1923) of the LMSR (ex Midland Railway) Distance Diagrams, datum B&M - N&B boundary.
BM004 Talyllyn North Junction CAM - Talyllyn East Junction
For details see CM035
BM010 Pontsticill Junction - Morlais Junction, datum Brecon B&M Boundary
17m36c Pontsticill Junction BM001
18m76c Morlais Junction (end on)BM011 NW
Morlais Junction - Rhydycar Junction
datum Brecon B&M Boundary
18m76c Morlais Junction (end on) BM010 NW272
19m64c Pontsarn
21m29c Cefn Coed
22m39c Heolgerrig Halt
22m69c Cyfarthfa Ironworks Junction
22m70c Llwyncelyn Junction BM012
23m44c Ynysfach Junction BM013
23m56c Rhydycar Junction
Llwyncelyn Junction - Cyfarthfa Ynynfach Siding
22m70c Llwyncelyn Junction BM011
23m12c end of line
BM013 Ynysfach Junction - Cyfarthfa Junction
0m00c Ynysfach Junction BM011
0m22c Ynysfach Loop Junction BM014
0m35c Cyfartha Junction TV002
Ynysfach Loop Junction - Merthyr Junction
0m00c Ynysfach Loop Junction BM013
0m19c Merthyr Junction
BM020 Pant Junction - Dowlais (Lloyd Street)
18m65c Pant Junction BM001
18m73c Pant (1st)
19m44c Pantysgallog
19m75c Ivor Junction NW275
20m17c Dowlais Central
BM021 Rhymney Limestone Siding
0m14c Limestone Railway boundary
0m00c Rhymney Limestone Branch Siding BM001
BM022 Fochriw Junction - Fochriw Colliery
0m00c Fochriw Colliery Junction BM001
0m63c Tunnel Pit Junction
BM023 Deri Junction - Ogilvie Colliery
datum Cardiff East Dock
(Cilhaul Tramway) (Ogilvie Colliery) 20m70c B&M boundary 20m34c Ogilvie Colliery Junction BM001
BM030 Rhymney B&M - Bassaleg Junction GWR
20m78c end of line
20m70c Rhymney Lower
20m05c end of line from 1933
19m79c Abertysswg
19m73c McLaren Colliery Junction
19m58c New Tredegar Colliery Junction North RR011
19m23c New Tredegar Colliery Platform
18m39c New Tredegar
18m00c Elliot Pit Halt
17m50c Cwmsyfiog Halt
17m48c Brithdir Goods Junction
17m21c Cwmsyfiog Colliery Halt
16m26c Aberbargoed (1st)
16m16c Aberbargoed (2nd)
15m79c Bargoed Colliery Halt
15m25c Guaelod y Waun Siding
15m10c Aberbargoed Junction BM031
15m00c Britannia North End
14m60c Gilfach Quarry
14m30c Pengam
13m61c Fleur de Lis Platform
13m22c Maesycwmmer Junction GW444
12m44c Maesycwmmer
9m79c Llanbradach Colliery Halt
9m38c Barry Junction BY010
9m36c Duffryn Isaf Junction
8m74c Trehir Quarry Junction
8m39c Bryn Gwyn Colliery
7m69c Bedwas
6m70c Trethomas (aka Thomastown)
5m03c Machen Junction BM032 BM033
5m01c Machen
4m20c Machen Lime Kilns
3m61c Church Road
1m38c Rhiwderin
0m48c Bassaleg North Junction BM035
0m23c Bassaleg
0mxxc Bassaleg Junction AD002
0m00c Bassaleg Junction GW
BM031 Bargoed South Junction - Aberbargoed Junction
datum Bassaleg Junction
15m72c Bargoed South Junction RR010
15m10c Aberbargoed Junction BM030
BM032 Caerphilly East - Machen Junction
datum Bassaleg Junction
8m41c RR/BM boundary RR026
7m65c Rhos Llantwit Colliery Junction
7m29c Gwerndomen Halt
7m13c Gwaun-y-Bara Junction BM033
6m18c Waterloo Halt (up line)
5m75c Pentwyn Siding (up line) (1) BM034
5m37c White Hart Halt
5m03c Machen Junction BM030 BM033
(1) aka Old Forge Siding
BM033 Caerphilly Branch Down Loop Line
datum Bassaleg Junction
7m13c Gwaun-y-Bara Junction BM032
6m32c Fountain Bridge Halt (down line)
5m37c White Hart Halt (down line)
5m03c Machen Junction BM030 BM032
BM034 Pentwyn Siding - Machen Tin Plate Works
Pentwyn Siding (up line) BM032
Machen Tin Works
0m00c - 0m45c
BM035 Bassaleg Yard - Nettlefolds Siding
0m45c Bassaleg North Junction BM030
0m30c Nettlefolds Sidings


Do you find this web site useful? If so, why not become a member of the Society

Page last modified Friday, 8th January, 2021, 22:54 hours.
Entire site copyright © 2008–2024 The Signalling Record Society. All rights reserved.
A Charitable Incorporated Organisation registered in England and Wales.
Registered Charity Number 1176506.