The Signalling Record Society

Home Page Railway Company Lists County Lists

RailRef Line Codes JN

Signal Fact 21

In the Sykes’ Lock & Block system, there were usually three vertical iron rods linking each instrument on the block shelf with the lever frame below.

These were referred to as rods S, Y and X in the manufacturer’s literature, spelling the company trade mark “SYX”.

Great Northern & Great Eastern Joint Railway (GER, GNR)

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.

Milepost Mileages

Mileages seem to have been primarily from Huntingdon to Black Carr via March as shown in the GNR Gradient Book.

The GNR included an item in its weekly notice for 4 to 10 April 1897 headed "Remeaurement of GN & GE Joint Lines". This indicated that the lines had been remeasured and new mileposts were being put in place from zero at Huntingdon South Junction and running thence to Black Carr supeseding the old branch mileages in the area bounded by Huntingdon, St Ives, Needingworth, March, Whitemoor, Spalding, Pyewipe Junction, and Sykes Junction.

The existing posts between Spalding and Sincil Junction were being brought southwards from 8 to 12 chains.

The avoiding line at Sleaford would have mileposts from Sleaford South Junction.

The avoiding line at Lincoln would have mileages from Greetwell West Junction.

No Joint line mileages would be placed on the GER at St Ives or at Marsh or on the GNR at Spalding, Sleaford and Lincoln.

Mileages in the lists below date mainly from 1897 in consequence.

RailRef	Line Detail	ELR
JN001 GE071 GN041	Huntingdon North GNR - St. Ives Junction 0m00c Huntingdon South (No.1) Junction GN040 Huntingdon GN & GE Joint Station Huntingdon East Junction MR088 Godmanchester (1) Godmanchester East Fenstanton St Ives 5m44c St Ives Junction GE070 (1) originally Huntingdon Article: Steam Days 2013 August.
JN010 GE072 GN042	Needingworth Junction - March South Junction datum Huntingdon 7m38c Needingworth Junction GE070 Somersham Somersham Junction JN011 Billayie Chatteris Chatteris Dock JN012 Wimblington 23m62c March South Junction GE080 GN Gradient Book shows mileages from Huntingdon. Mileages above from GER Diagram Book of 1919. 1889 OS map shows mile posts from St Ives. Article: Steam Days 2013 August.	NJM
JN011 GE073 GN043	Somersham Junction - Ramsey datum Somersham Junction JN010 Warboys Ramsey East (1) (1) originally Ramsey High Street	SOR
JN012 GE073c GN044	Chatteris Dock Branch Chatteris Dock Junction JN010 Chatteris Dock Goods
JN020 GE090 GN091	Grassmoor Junction - Spalding South Junction GNR datum Huntingdon South Junction 25m07c Grassmoor Junction GE082 Twenty Feet River 27m78c Guyhirne 30m78c Murrow Murrow Junction JN021 31m01c M&GN Line crossing 33m60c French Drove & Gedney Hill 37m12c Postland (1) 40m69c Cowbit Welland Bridge 44m07c Spalding South Junction GN090 (1) originally Crowland MSG2: Grassmoor Junction - 26m53c (regional boundary) MSG3: 26m53c - Spalding South Junction 1888 OS map shows a 6mp from March (March North Junction?) just before the later position of the 31mp. Article: Steam Days 2013 August.	MSG2 MSG3
JN021 GE091	Murrow Curve Murrow Junction JN020 Murrow Curve Junction MG001
JN030 GE092 GN092	Spalding North Junction - Sincil Junction datum Huntingdon 44m52c Spalding North Junction GN090 44m65c Park Road 44m74c Mill Green 45m42c Blue Gowts No.78 LC 46m00c Cherry Holt No.80 LC 46m33c Pinchbeck 46m46c No.84 LC 46m59c No.85 LC 46m66c Flax Mill No.86 LC 47m22c Bearty Fen No.88 LC 47m68c Beech Bank No.93 LC 48m09c Water Drove No.94 LC 48m31c Cheal Road No.96 LC 49m21c Gosberton 50m19c Brewery Lane No.104 LC 51m10c Quadring 51m47c Church Lane No.113 LC 51m58c Golden High Hedges No.114 LC 52m29c Malting Lane No.116 LC 52m69c Donnington Road 54m43c Pumphouse No.122 LC 55m26c Blotoft Siding 56m56c No.135 LC 56m77c Barnes No.137 LC 58m21c Helpringham 61m71c Beavers No150 LC 62m13c Sleaford South Junction JN031 63m47c Sleaford North Junction JN032 63m49c Bone Mill Lane No.254 LC 64m20c Holdingham Lane No.259 LC 64m68c Leasingham Moor (Whitehouse Farm) No.262 LC 65m66c Ruskington 68m44c Digby 69m33c Rowston Organ Road No.273 LC 69m59c Rowston No.275 LC 70m48c Timberland Road No.278 LC 70m51c Scopwick & Timberland Martin Road SB LC 73m02c Blankney (Methringham Moor Lane) No.287 LC 73m03c Blankney & Metheringham 73m43c Robinsons No.291 LC 73m62c Ox Pasture Lane No.292 LC 74m58c Nocton & Dunston 75m70c Howards No.295 LC 76m60c Potterhanworth 78m79c Branston & Heighington 81m24c Greetwell East Junction JN033 82m18c Sincil Bank Junction GN260 SPD2: Sleaford South Junction - Greetwell East Junction GER 1919 distance book implies miled from Liverpool Street. OS amp 1890 supports miled from Huntingdon. Article Railway Magazine 2015 June. Article: Steam Days 2013 August.	SPD2
JN031 GE093 GN093	Sleaford South Junction - Sleaford East Junction GNR 0m00c Sleaford South Junction JN030 0m43c Sleaford East Junction GN264	SSE
JN032 GE094 GN094	Sleaford West Junction GNR - Sleaford North Junction datum Sleaford South Junction 1m34c Sleaford West Junction GN264 1m52c Fen Crossing LC 3m42c Sleaford North Junction JN030	SNW
JN033 GE095 GN095	Greetwell Junction - Pyewipe Junction (Lincoln Avoiding Line) 0m00c Greetwell West Junction 2m34c Boultham Junction JN034 3m10c Pyewipe Junction JN040 Following BR Deviation Works in 1985 0m00c Boultham Junction MR614 0m65c Pyewipe Junction JN040 LIA: Greetwell Junction - Pyewipe Junction BHP: Boultham Junction - Pyewipe Junction post deviation works Mileages from Greetwell taken from 1978 Appendix. 1887-1890 series OS maps show mileposts from Huntingdon South Junction continued through to Pyewipe Junction Article: Steam Days 2013 August.	LIA BHP
JN034 GE096 GN096	Boultham Junction - West Holmes Junction 32m40c Boultham Junction JN033 MR614 32m52c Ruston's Tip No.66A LC 32m70c West Holmes Junction Mileages are post BR deviation works, datum Nottingham London Road Junction.	NOB2
JN040 GE097 GN105	Pyewipe Junction GNR - Trent East Junction GCR datum Huntingdon South Junction via March 84m14c Pyewipe Junction JN033 GC110 Skellingthorpe (1st) 87m04c River Bank No.305 LC 87m41c Kesteven No.307 LC Kesteven Sidings 88m41c West Bank LC 88m41c Saxilby 88m51c Saxilby 88m57c Hockings No.314 LC 88m75c No.316 LC 89m15c Sykes Lane No.318 LC 90m04c Sykes Junction GC182 93m11c Stow Park (1) 93m13c Stow Park Tillbridge Lane No.326 LC 95m08c Hansons No.327 LC 95m35c Foxes No.328 LC 95m68c Old Lea Station (2) 95m72c Lea 98m03c Gainsborough Lea Road 98m09c Gainsborough Lea Road (3) 98m09c Gainsborough Wharf Branch Junction JN042 98m55c Trent East Junction (4) GC170 (1) originally Marton. (2) temporary (484093 385359) in connection with Hatfield landslip (2013), never opened for traffic. (3) originally Gainsborough, later Gainsborough North. (4) originally Trent South Junction. 188x OS maps show mileposts from March. 1890 OS maps show mileposts from London, continuing the series from GN100. Article: Steam Days 2013 August.	SPD3
JN042 GE097c GN106	Gainsborough Wharf Branch datum Huntingdon South Junction via March 98m09c Gainsborough Wharf Branch Junction JN040 98m30c Gainsborough Wharf	GLY
JN050 GE098 GN275	Trent West Junction - Black Carr Junction GNR datum Huntingdon South Junction via March 98m69c Trent West Junction (1) GC170 100m06c Gainsborough Road No.322 LC 100m74c Beckingham 100m78c Old Trent Road No.338 LC 101m35c Masons No.344 LC 101m54c Tetheringrass Lane No.346 LC 102m52c Walkeringham No.353 LC 102m54c Walkeringham Stockwith Branch Junction JN051 103m66c Misterton 104m66c North Carr No.358 LC 105m32c Tindall Bank No.359 LC 105m58c Haxey No.360 LC 105m61c Haxey Haxey Station Junction AJ001 Haxey Junction GN274 108m13c Broomston No.364 LC 108m49c Park Drain 108m52c Park Drain No.365 LC 109m73c Beech Hill No.366 LC 111m53c Wroot Road No.371 LC 112m04c Finningley 112m08c Finningley No.373 LC 112m73c Auckley No.375 LC 113m62c Burrells No.378 LC 114m06c Hayfields No.380 LC 115m46c Bessacar 115m72c Carr Lane No.383 LC 115m72c Bessacarr Junction LY390 116m39c Black Carr Junction GN270 (1) originally Trent North Junction SPD4: Trent West Junction - Bessacarr Junction BCB: Besscarr Junction - Black Carr Junction 188x OS maps show mileposts from March. Article: Steam Days 2013 August.	SPD4 BCB
JN051 GE099 GN276	Stockwith Branch Stockwith Branch Junction JN050 Stockwith Goods