Difference between revisions of "Gradient profile and mileages"

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[[File: SVR_Gradient_Profile.jpg|500px]]
 
[[File: SVR_Gradient_Profile.jpg|500px]]
  
The profile shows the average gradient in each section (the vertical scale is exaggerated), thus on leaving Kidderminster the line initially goes downhill with a gradient of 1 in 112.  ‘L’ indicates level.  According to the GWR gradient profiles, the steepest gradient on both the orignal Severn Valley Railway and the Loop line did not exceed an average of 1 in 100 in any section.  
+
The profile shows the average gradient in each section (the vertical scale is exaggerated), thus on leaving Kidderminster the line initially goes downhill with a gradient of 1 in 112.  ‘L’ indicates level.  According to the GWR gradient profiles, the steepest gradient on both the orignal Severn Valley Railway and the Loop line did not exceed an average of 1 in 100 in any section. The horizontal scale includes the mileages (see below).
  
Gradient posts showing changes in gradient can be seen at the lineside.  The design varies, but generally follows the principle of this prominent example near Highley station.
+
Gradient posts showing changes in gradient can be seen at the lineside.  The design varies, but generally follows the principle of this prominent example near Northwood Halt.
 
<gallery>
 
<gallery>
File: Gradient_Post.jpg | Gradient post
+
File:Northwood gradient post.jpg | Gradient post
 
</gallery>
 
</gallery>
  
 
==Mileages==
 
==Mileages==
The location of stations, bridges and other structures on the railway network are measured from a datum point (normally a major terminus).  For the majority of the railways associated with the SVR the datum point was London Paddington (the exact zero point being the Paddington Suburban Tunnel boundary with the Metropolitan Railway).  The individual routes used to reach those locations are identified by [[Engineer's Line References]] (ELRs). Mileage Posts commonly appear at the lineside, usually at &frac14; mile intervals, to confirm the relevant distances.  
+
The location of stations, bridges and other structures on the railway network are measured from a datum point (normally a major terminus).  For the majority of the railways associated with the SVR the datum point was London Paddington (the exact zero point being the Paddington Suburban Tunnel boundary with the Metropolitan Railway).  The individual routes used to reach those locations are identified by [[Engineer's Line References]] (ELRs).
 +
 
 +
The maps of the SVR shown below have been annotated with mileages taken from the relevant ELRs. All figures are shown in miles and chains (one chain is equal to 22 yards or 1/80th of a mile).
  
The maps of the SVR shown below have been annotated with mileages taken from the relevant ELRs. All figures are shown in miles and chains (one chain is equal to 22 yards or 1/80th of a mile)
 
 
===Oxford Worcester and Wolverhampton Line (OWW)===
 
===Oxford Worcester and Wolverhampton Line (OWW)===
 
The ELR for the OWW began at Wolvercote Junction near Oxford (66 miles 32 chains from Paddington via Didcot).  It ended at Priestfield Junction (140 miles 23 chains) near [[Wolverhampton]].  The section most relevant to the SVR is shown below.  
 
The ELR for the OWW began at Wolvercote Junction near Oxford (66 miles 32 chains from Paddington via Didcot).  It ended at Priestfield Junction (140 miles 23 chains) near [[Wolverhampton]].  The section most relevant to the SVR is shown below.  
Line 21: Line 22:
 
|-
 
|-
 
|
 
|
135.46 [[File:BSicon_BHF.svg|25px]]  [[Kidderminster]] (main line)
+
135.46 [[File:BSicon_BHFlocal.png|25px]]  [[Kidderminster]] (main line)
 
<br/>
 
<br/>
135.21 [[File:BSicon_HST.svg|25px]]  Mileage reversal point for BYK
+
135.21 [[File:BSicon_HSTlocal.png|25px]]  Mileage reversal point for BYK
 
<br/>
 
<br/>
135.09 [[File:BSicon_ABZrf.svg|25px]]  [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Jct]] for BYK
+
135.09 [[File:BSicon_ABZrflocal.png|25px]]  [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Jct]] for BYK
 
<br/>
 
<br/>
132.15 [[File:BSicon_ABZlg.svg|25px]]  [[Hartlebury Junction | Hartlebury Jct]] for SVB
+
132.15 [[File:BSicon_ABZlglocal.png|25px]]  [[Hartlebury Junction | Hartlebury Jct]] for SVB
 
<br/>
 
<br/>
131.68 [[File:BSicon_BHF.svg|25px]]  [[Hartlebury]]
+
131.68 [[File:BSicon_BHFlocal.png|25px]]  [[Hartlebury]]
 
<br/>
 
<br/>
120.40 [[File:BSicon_BHF.svg|25px]]  [[Worcester]]
+
120.40 [[File:BSicon_BHFlocal.png|25px]]  [[Worcester]]
 
|-
 
|-
 
|}
 
|}
  
The SVR's [[Kidderminster | Kidderminster Town]] station is measured as 135 miles 40 chains (exactly 135&frac1/2; miles) from London. A milepost showing this distance is included in the gallery below.
+
The SVR's [[Kidderminster | Kidderminster Town]] station is measured as 135 miles 40 chains (exactly 135&frac12; miles) from London. A milepost showing this distance is included in the gallery below.
+
 
 
===Severn Valley Branch (SVB)===
 
===Severn Valley Branch (SVB)===
 
The ELR for the SVB began in the south at Hartlebury Junction and ended at the junction with the Shrewsbury and Hereford Line (SHL) near Sutton Bridge Junction. Shrewsbury lay 62 chains north of this junction; however Shrewsbury was used as the datum point for the SHL.  Thus the junction for the Wellington line, which came between the two is measured as 11 chains from Shrewsbury rather than a distance from Paddington.  Similarly Woofferton is measured as 32 miles 11 chains from Shrewsbury.  
 
The ELR for the SVB began in the south at Hartlebury Junction and ended at the junction with the Shrewsbury and Hereford Line (SHL) near Sutton Bridge Junction. Shrewsbury lay 62 chains north of this junction; however Shrewsbury was used as the datum point for the SHL.  Thus the junction for the Wellington line, which came between the two is measured as 11 chains from Shrewsbury rather than a distance from Paddington.  Similarly Woofferton is measured as 32 miles 11 chains from Shrewsbury.  
Line 42: Line 43:
 
|-
 
|-
 
|
 
|
171.59 [[File:BSicon_ABZrf.svg|25px]]  [[Sutton Bridge Junction  | Severn Valley Jct]] with SHL
+
171.59 [[File:BSicon_ABZrflocal.png|25px]]  [[Sutton Bridge Junction  | Severn Valley Jct]] with SHL
 
<br/>
 
<br/>
168.12 [[File:BSicon_HST.svg|25px]]  [[Berrington]]
+
168.12 [[File:BSicon_HSTlocal.png|25px]]  [[Berrington]]
 
<br/>
 
<br/>
165.43 [[File:BSicon_HST.svg|25px]]  [[Cound Halt]]
+
165.43 [[File:BSicon_HSTlocal.png|25px]]  [[Cound Halt]]
 
<br/>
 
<br/>
164.12 [[File:BSicon_HST.svg|25px]]  [[Cressage]]
+
164.12 [[File:BSicon_HSTlocal.png|25px]]  [[Cressage]]
 
<br/>
 
<br/>
160.23 [[File:BSicon_vSTRg+r.svg|25px]]  To Much Wenlock
+
160.23 [[File:BSicon_vSTRg+rlocal.png|25px]]  To Much Wenlock
 
<br/>
 
<br/>
160.23 [[File:BSicon_vBHF.svg|25px]]  [[Buildwas]]
+
160.23 [[File:BSicon_vBHFlocal.png|25px]]  [[Buildwas]]
 
<br/>
 
<br/>
160.05 [[File:BSicon_SPLe.svg|25px]]   
+
160.05 [[File:BSicon_SPLelocal.png|25px]]   
 
<br/>
 
<br/>
160.01 [[File:BSicon_ABZlf.svg|25px]]  Buildwas East Jct (To Madeley Jct, Wellington)
+
160.01 [[File:BSicon_ABZlflocal.png|25px]]  Buildwas East Jct (To Madeley Jct, Wellington)
 
<br/>
 
<br/>
158.68 [[File:BSicon_HST.svg|25px]]  [[Ironbridge and Broseley]]
+
158.68 [[File:BSicon_HSTlocal.png|25px]]  [[Ironbridge and Broseley]]
 
<br/>
 
<br/>
157.55 [[File:BSicon HST.svg|25px]]  [[Jackfield Halt | Jackfield Halt 1]]
+
157.55 [[File:BSicon HSTlocal.png|25px]]  [[Jackfield Halt | Jackfield Halt 1]]
 
<br/>
 
<br/>
157.37 [[File:BSicon_HST.svg|25px]]  [[Jackfield Halt | Jackfield Halt 2]]
+
157.37 [[File:BSicon_HSTlocal.png|25px]]  [[Jackfield Halt | Jackfield Halt 2]]
 
<br/>
 
<br/>
156.68 [[File:BSicon_HST.svg|25px]]  [[Coalport]]
+
156.68 [[File:BSicon_HSTlocal.png|25px]]  [[Coalport]]
 
<br/>
 
<br/>
154.24 [[File:BSicon_HST.svg|25px]]  [[Linley]]
+
154.24 [[File:BSicon_HSTlocal.png|25px]]  [[Linley]]
 
<br/>
 
<br/>
149.74 [[File:BSicon_BHF.svg|25px]]  [[Bridgnorth]]
+
149.74 [[File:BSicon_BHFlocal.png|25px]]  [[Bridgnorth]]
 
<br/>
 
<br/>
147.59 [[File:BSicon_HST.svg|25px]]  [[Eardington]]
+
147.59 [[File:BSicon_HSTlocal.png|25px]]  [[Eardington]]
 
<br/>
 
<br/>
145.33 [[File:BSicon_HST.svg|25px]]  [[Hampton Loade]]
+
145.33 [[File:BSicon_HSTlocal.png|25px]]  [[Hampton Loade]]
 
<br/>
 
<br/>
144.07 [[File:BSicon_HST.svg|25px]]  [[Country Park Halt]]
+
144.07 [[File:BSicon_HSTlocal.png|25px]]  [[Country Park Halt]]
 
<br/>
 
<br/>
143.61 [[File:BSicon_HST.svg|25px]]  [[Alveley Halt]]
+
143.61 [[File:BSicon_HSTlocal.png|25px]]  [[Alveley Halt]]
 
<br/>
 
<br/>
143.20 [[File:BSicon_HST.svg|25px]]  [[Highley]]
+
143.20 [[File:BSicon_HSTlocal.png|25px]]  [[Highley]]
 
<br/>
 
<br/>
140.74 [[File:BSicon_HST.svg|25px]]  [[Arley]]
+
140.74 [[File:BSicon_HSTlocal.png|25px]]  [[Arley]]
 
<br/>
 
<br/>
138.77 [[File:BSicon_HST.svg|25px]]  [[Northwood Halt]]
+
138.77 [[File:BSicon_HSTlocal.png|25px]]  [[Northwood Halt]]
 
<br/>
 
<br/>
138.22 [[File:BSicon vSTRg+r.svg|25px]]  [[Tenbury Wall| Divergance with TBY]]
+
138.22 [[File:BSicon vSTRg+rlocal.png|25px]]  [[Tenbury Wall| Divergance with TBY]]
 
<br/>
 
<br/>
137.39 [[File:BSicon_SPLe.svg|25px]]  [[Bewdley North signal box|Bewdley Jct North]] with TBY  
+
137.39 [[File:BSicon_SPLelocal.png|25px]]  [[Bewdley North signal box|Bewdley Jct North]] with TBY  
 
<br/>
 
<br/>
137.28 [[File:BSicon_BHF.svg|25px]]  [[Bewdley]]
+
137.28 [[File:BSicon_BHFlocal.png|25px]]  [[Bewdley]]
 
<br/>
 
<br/>
137.12 [[File:BSicon_ABZlf.svg|25px]]  [[Bewdley South signal box|Bewdley Jct South]] with BYK
+
137.12 [[File:BSicon_ABZlflocal.png|25px]]  [[Bewdley South signal box|Bewdley Jct South]] with BYK
 
<br/>
 
<br/>
135.19 [[File:BSicon_HST.svg|25px]]  [[Burlish Halt]]
+
135.19 [[File:BSicon_HSTlocal.png|25px]]  [[Burlish Halt]]
 
<br/>
 
<br/>
134.54 [[File:BSicon_BHF.svg|25px]]  [[Stourport]]
+
134.54 [[File:BSicon_BHFlocal.png|25px]]  [[Stourport]]
 
<br/>
 
<br/>
132.15 [[File:BSicon_ABZrg.svg|25px]]  [[Hartlebury Junction | Hartlebury Jct]] with OWW
+
132.15 [[File:BSicon_ABZrglocal.png|25px]]  [[Hartlebury Junction | Hartlebury Jct]] with OWW
 
|}
 
|}
  
 
===Bewdley to Kidderminster Curve (BYK)===
 
===Bewdley to Kidderminster Curve (BYK)===
The [[Kidderminster Loop Line | Loop]] between Kidderminster and Bewdley does not lie on a direct route from London Paddington.  Distances to places on the Loop were therefore measured on the basis that you would proceed towards Kidderminster and after passing [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Junction]] at 135 miles 9 chains, reach a reversal point 12 chains further on. Returning over the 12 chains to the Junction on the loop line (now 135 miles 33 chains), mileages are measured until Bewdley South Junction is reached at 138 miles 21 chains.  However Bewdley South Junction only 137 miles 12 chains via the direct route from Hartlebury; this lower figure becomes the base mileage for measuring distances onwards towards Bridgnorth and Tenbury.  This accounts for the change in mileage at Bewdley South Junction in the profile above.
+
The [[Kidderminster Loop Line | Loop]] between Kidderminster and Bewdley does not lie on a direct route from London Paddington.  Distances to places on the Loop as set out in the [[Engineer's Line References]] were therefore measured on the basis that you would proceed towards Kidderminster and after passing [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Junction]] at 135 miles 9 chains, reach a reversal point 12 chains further on. Returning over the 12 chains to the Junction on the loop line (now 135 miles 33 chains), mileages are measured until Bewdley South Junction is reached at 138 miles 21 chains.  However Bewdley South Junction was only 137 miles 12 chains via the direct route from Hartlebury; this lower figure becomes the base mileage for measuring distances onwards towards Bridgnorth and Tenbury.  This accounts for the change in mileage at Bewdley South Junction in the profile above.
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
|
 
|
135.21 [[File:BSicon_HST.svg|25px]]  Mileage reversal point for BYK
+
135.21 [[File:BSicon_HSTlocal.png|25px]]  Mileage reversal point for BYK
 
<br/>
 
<br/>
135.33 [[File:BSicon_ABZlf.svg|25px]]  [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Jct]] for OWW
+
135.33 [[File:BSicon_ABZlflocal.png|25px]]  [[Kidderminster Junction signal box#Kidderminster Junction | Kidderminster Jct]] for OWW
 
<br/>
 
<br/>
136.32 [[File:BSicon_HST.svg|25px]]  [[Foley Park Halt]]
+
136.32 [[File:BSicon_HSTlocal.png|25px]]  [[Foley Park Halt]]
 
<br/>
 
<br/>
137.43 [[File:BSicon_eHST.svg|25px]]  [[Rifle Range Halt]]
+
137.43 [[File:BSicon_eHSTlocal.png|25px]]  [[Rifle Range Halt]]
 
<br/>
 
<br/>
138.21 [[File:BSicon_ABZrf.svg|25px]]  [[Bewdley South signal box|Bewdley Jct South]] with SVB (137.12)
+
138.21 [[File:BSicon_ABZrflocal.png|25px]]  [[Bewdley South signal box|Bewdley Jct South]] with SVB (137.12)
 
<br/>
 
<br/>
 
|-
 
|-
 
|}
 
|}
  
===Mileage Posts===
+
The original 1874 [[Loop Line specification and contract]] quoted mileages from Bewdley South junction towards Kidderminster. Drawings of the main items of infrastructure were described as follows:
 +
 
 +
*'''Bridge at 0m 46.88''' ([[Devil's Spittleful (Rifle Range) Bridge]])<br>
 +
*'''Tunnel from 1m 4 Ch<span style="vertical-align:super;font-size:small">s</span> to 1m 26''' ([[Bewdley Tunnel]])<br>
 +
*'''Bridge at 1m 61.15''' ([[Stourport Road Bridge]])<br>
 +
*'''Bridge at 1m 7 Ch<span style="vertical-align:super;font-size:small">s</span> and Culverts''' ([[Underbridge off Lisle Avenue]])<br>
 +
*'''Viaduct from 2m 11.63 Ch<span style="vertical-align:super;font-size:small">s</span> to 2m 17.72''' ([[Falling Sands Viaduct]])<br>
 +
*'''Bridge at 2m 26.72''' ([[Worcester Road Bridge]])<br>
 +
*'''Bridge at 2m 46.30''' ([[Hoo Road Bridge]])
 +
 
 +
Early OS maps show the locations of mileposts on the loop line which appear to reflect this method of calculation. Mileposts appear just east of Rifle Range Halt (see map below),  just west of [[Stourport Road Bridge]] (the location of [[Foley Park Halt]]), and just south of Kidderminster Junction (see map below). This discrepancy can be accounted for if the earlier mileages were instead based on a reversal at Bewdley and then travelling towards Kidderminster, ie:
 +
 
 +
137.12 Bewdley South Junction SVB<br>
 +
137.15 Reversal point (assumed)<br>
 +
137.18 Bewdley South Junction BYK<br>
 +
137.76 Rifle Range Halt (placing milepost 138 just to the east)<br>
 +
139.07 Foley Park Halt (placing milepost 139 just to the west)<br>
 +
140.06 Kidderminster Junction BYK (placing milepost 140 just to the south)<br>
 +
 
 +
<gallery>
 +
Loop Line map.jpg|Milepost near the site of Rifle Range Halt
 +
</gallery>
  
Mileage posts showing the distance from London Paddington, as measured above, can be seen at the lineside. In the second example shown, the distance just south of Arley Station is 140&frac34; miles (the vertical bars below the number show the number of quarter miles).  One mileage post is situated at the foot of Highley Signal Box, showing that it is exactly 143&frac14; miles from Paddington.
+
===Mileposts===
 +
Early railway fares were set by distance, therefore it was necessary for railway companies to provide their passengers with a means of determining the distance travelled. The Railways Clauses Consolidation Act 1845 Section 94 stated "''The company shall cause the length of the railway to be measured, and milestones, posts, or other conspicuous objects to be set up and maintained along the whole line thereof, at the distance of one quarter of a mile from each other, with numbers or marks inscribed thereon denoting such distances''.<ref>[http://www.legislation.gov.uk/ukpga/Vict/8-9/20#pb9-l1g104 Railways Clauses Consolidation Act 1845] Retrieved 23 May 2016</ref> 
 +
 +
Mileposts showing the distance from London Paddington, as measured above, can be seen at the lineside. In the second example shown, the distance just south of Arley Station is 140&frac34; miles (the vertical bars below the number show the number of quarter miles).  One milepost is situated at the foot of Highley Signal Box, showing that it is exactly 143&frac14; miles from Paddington.
  
 
<gallery>
 
<gallery>
Line 127: Line 152:
 
</gallery>
 
</gallery>
  
The locations of the principal mile posts were often shown on early Ordnance Survey maps, such as this example from 1903 showing the presence of mileposts (MP) at Kidderminster Junction on both branches of the junction.
+
The locations of the principal mileposts were often shown on early Ordnance Survey maps, such as this example from 1903 showing the presence of mileposts (MP) at Kidderminster Junction on both branches of the junction.
 
<gallery>
 
<gallery>
 
File:Kidderminster_Junction_OS.JPG | 1903 OS map of Kidderminster Junction
 
File:Kidderminster_Junction_OS.JPG | 1903 OS map of Kidderminster Junction
 +
</gallery>
 +
 +
Although the mileposts seen today were re-created in the modern era, they closely follow the historical design. The remains of this original milepost can still be seen next to the trackbed between Ironbridge and Buildwas.
 +
<gallery>
 +
File:Original_Milepost_20170402.jpg|Remains of an original milepost
 
</gallery>
 
</gallery>
  
 
===Mileage oddities===
 
===Mileage oddities===
In addition to the 'discontinuity' in the mileage at Bewdley South Junction referred to above, the present day SVR being situated on three different ELRs gives rise to some other apparent oddities.  Leaving Kidderminster, the mileage initially decreases as you pass the first milepost by the carriage shed but then increases again as you continue (due to setting off towards London but then curving away from it).  Reaching Kidderminster Junction, this is two different distances from London, depending on whether you are on the OWW line or the Severn Valley Branch (due to the latter being approached by the reversal point). Finally, on Safari Park Curve you pass milepost 137&frac34;, and a short time later you enter Bewdley Station passing another milepost 137&frac34; (the former being reached via the Loop and the latter direct via Hartlebury.   
+
In addition to the 'discontinuity' in the mileage at Bewdley South Junction referred to above, the present day SVR being situated on three different ELRs gives rise to some other apparent oddities.  Leaving Kidderminster, the mileage initially decreases as you pass the first milepost by the carriage shed but then increases again as you continue (due to setting off towards London but then curving away from it).  Reaching Kidderminster Junction, this is two different distances from London, depending on whether you are on the OWW line or the Severn Valley Branch (due to the latter being approached by the reversal point). Finally, on Safari Park Curve you pass milepost 137&frac34;, and a short time later you enter Bewdley Station passing another milepost 137&frac34; (the former being reached via the Loop and the latter direct via Hartlebury.
 +
 
 +
===Modern distance markers===
 +
Evidence of another measurement system used for operational purposes can also be seen on the SVR. The distances have been measured from Kidderminster in kilometres, with a small marker tag attached to the web of the rail every 100 metres. The locations of these have been highlighted by white paint on the chair or sleeper adjacent to the markerExamples can be clearly seen from the platform at Bewdley (5.700) and near the Highley cattle dock (15.100).
 +
<gallery>
 +
Bewdley_20180825.jpg|Marker at Bewdley
 +
Highley_20180825.jpg|Marker at Highley
 +
</gallery>
  
 
==See also==
 
==See also==
 
[[Engineer's Line References]]<br>
 
[[Engineer's Line References]]<br>
 
[[Main Page]]
 
[[Main Page]]
 +
 +
==References==
 +
<references />
 +
 +
[[Category: The Severn Valley Railway in preservation]]
 +
[[Category: Miscellaneous articles]]

Revision as of 09:41, 9 January 2021

Gradient Profile

The gradient profile of the SVRSevern Valley Railway between Kidderminster and Bridgnorth is shown below. The diagram, which is reproduced from the SVRSevern Valley Railway Visitor Guide Eighth Edition (2001), is based on official GWRGreat Western Railway documents.

SVR Gradient Profile.jpg

The profile shows the average gradient in each section (the vertical scale is exaggerated), thus on leaving Kidderminster the line initially goes downhill with a gradient of 1 in 112. ‘L’ indicates level. According to the GWRGreat Western Railway gradient profiles, the steepest gradient on both the orignal Severn Valley Railway and the Loop line did not exceed an average of 1 in 100 in any section. The horizontal scale includes the mileages (see below).

Gradient posts showing changes in gradient can be seen at the lineside. The design varies, but generally follows the principle of this prominent example near Northwood Halt.

Mileages

The location of stations, bridges and other structures on the railway network are measured from a datum point (normally a major terminus). For the majority of the railways associated with the SVRSevern Valley Railway the datum point was London Paddington (the exact zero point being the Paddington Suburban Tunnel boundary with the Metropolitan Railway). The individual routes used to reach those locations are identified by Engineer's Line References (ELRs).

The maps of the SVRSevern Valley Railway shown below have been annotated with mileages taken from the relevant ELRs. All figures are shown in miles and chainsAs a unit of measurement, 22 yards or 1/80th of a mile (one chainAs a unit of measurement, 22 yards or 1/80th of a mile is equal to 22 yards or 1/80th of a mile).

Oxford Worcester and Wolverhampton Line (OWWOxford Worcester and Wolverhampton Railway)

The ELREngineer's Line Reference, East Lancashire Railway for the OWWOxford Worcester and Wolverhampton Railway began at Wolvercote Junction near Oxford (66 miles 32 chainsAs a unit of measurement, 22 yards or 1/80th of a mile from Paddington via Didcot). It ended at Priestfield Junction (140 miles 23 chainsAs a unit of measurement, 22 yards or 1/80th of a mile) near Wolverhampton. The section most relevant to the SVRSevern Valley Railway is shown below.

135.46 BSicon BHFlocal.png Kidderminster (main line)
135.21 BSicon HSTlocal.png Mileage reversal point for BYK
135.09 BSicon ABZrflocal.png Kidderminster Jct for BYK
132.15 BSicon ABZlglocal.png Hartlebury Jct for SVB
131.68 BSicon BHFlocal.png Hartlebury
120.40 BSicon BHFlocal.png Worcester

The SVRSevern Valley Railway's Kidderminster Town station is measured as 135 miles 40 chainsAs a unit of measurement, 22 yards or 1/80th of a mile (exactly 135½ miles) from London. A milepost showing this distance is included in the gallery below.

Severn Valley Branch (SVB)

The ELREngineer's Line Reference, East Lancashire Railway for the SVB began in the south at Hartlebury Junction and ended at the junction with the Shrewsbury and Hereford Line (SHL) near Sutton Bridge Junction. Shrewsbury lay 62 chainsAs a unit of measurement, 22 yards or 1/80th of a mile north of this junction; however Shrewsbury was used as the datum point for the SHL. Thus the junction for the Wellington line, which came between the two is measured as 11 chainsAs a unit of measurement, 22 yards or 1/80th of a mile from Shrewsbury rather than a distance from Paddington. Similarly Woofferton is measured as 32 miles 11 chainsAs a unit of measurement, 22 yards or 1/80th of a mile from Shrewsbury.

171.59 BSicon ABZrflocal.png Severn Valley Jct with SHL
168.12 BSicon HSTlocal.png Berrington
165.43 BSicon HSTlocal.png Cound Halt
164.12 BSicon HSTlocal.png Cressage
160.23 BSicon vSTRg+rlocal.png To Much Wenlock
160.23 BSicon vBHFlocal.png Buildwas
160.05 BSicon SPLelocal.png
160.01 BSicon ABZlflocal.png Buildwas East Jct (To Madeley Jct, Wellington)
158.68 BSicon HSTlocal.png Ironbridge and Broseley
157.55 BSicon HSTlocal.png Jackfield Halt 1
157.37 BSicon HSTlocal.png Jackfield Halt 2
156.68 BSicon HSTlocal.png Coalport
154.24 BSicon HSTlocal.png Linley
149.74 BSicon BHFlocal.png Bridgnorth
147.59 BSicon HSTlocal.png Eardington
145.33 BSicon HSTlocal.png Hampton Loade
144.07 BSicon HSTlocal.png Country Park Halt
143.61 BSicon HSTlocal.png Alveley Halt
143.20 BSicon HSTlocal.png Highley
140.74 BSicon HSTlocal.png Arley
138.77 BSicon HSTlocal.png Northwood Halt
138.22 BSicon vSTRg+rlocal.png Divergance with TBY
137.39 BSicon SPLelocal.png Bewdley Jct North with TBY
137.28 BSicon BHFlocal.png Bewdley
137.12 BSicon ABZlflocal.png Bewdley Jct South with BYK
135.19 BSicon HSTlocal.png Burlish Halt
134.54 BSicon BHFlocal.png Stourport
132.15 BSicon ABZrglocal.png Hartlebury Jct with OWWOxford Worcester and Wolverhampton Railway

Bewdley to Kidderminster Curve (BYK)

The Loop between Kidderminster and Bewdley does not lie on a direct route from London Paddington. Distances to places on the Loop as set out in the Engineer's Line References were therefore measured on the basis that you would proceed towards Kidderminster and after passing Kidderminster Junction at 135 miles 9 chainsAs a unit of measurement, 22 yards or 1/80th of a mile, reach a reversal point 12 chainsAs a unit of measurement, 22 yards or 1/80th of a mile further on. Returning over the 12 chainsAs a unit of measurement, 22 yards or 1/80th of a mile to the Junction on the loop line (now 135 miles 33 chainsAs a unit of measurement, 22 yards or 1/80th of a mile), mileages are measured until Bewdley South Junction is reached at 138 miles 21 chainsAs a unit of measurement, 22 yards or 1/80th of a mile. However Bewdley South Junction was only 137 miles 12 chainsAs a unit of measurement, 22 yards or 1/80th of a mile via the direct route from Hartlebury; this lower figure becomes the base mileage for measuring distances onwards towards Bridgnorth and Tenbury. This accounts for the change in mileage at Bewdley South Junction in the profile above.

135.21 BSicon HSTlocal.png Mileage reversal point for BYK
135.33 BSicon ABZlflocal.png Kidderminster Jct for OWWOxford Worcester and Wolverhampton Railway
136.32 BSicon HSTlocal.png Foley Park Halt
137.43 BSicon eHSTlocal.png Rifle Range Halt
138.21 BSicon ABZrflocal.png Bewdley Jct South with SVB (137.12)

The original 1874 Loop Line specification and contract quoted mileages from Bewdley South junction towards Kidderminster. Drawings of the main items of infrastructure were described as follows:

Early OSOrdnance Survey maps show the locations of mileposts on the loop line which appear to reflect this method of calculation. Mileposts appear just east of Rifle Range Halt (see map below), just west of Stourport Road Bridge (the location of Foley Park Halt), and just south of Kidderminster Junction (see map below). This discrepancy can be accounted for if the earlier mileages were instead based on a reversal at Bewdley and then travelling towards Kidderminster, ie:

137.12 Bewdley South Junction SVB
137.15 Reversal point (assumed)
137.18 Bewdley South Junction BYK
137.76 Rifle Range Halt (placing milepost 138 just to the east)
139.07 Foley Park Halt (placing milepost 139 just to the west)
140.06 Kidderminster Junction BYK (placing milepost 140 just to the south)

Mileposts

Early railway fares were set by distance, therefore it was necessary for railway companies to provide their passengers with a means of determining the distance travelled. The Railways Clauses Consolidation Act 1845 Section 94 stated "The company shall cause the length of the railway to be measured, and milestones, posts, or other conspicuous objects to be set up and maintained along the whole line thereof, at the distance of one quarter of a mile from each other, with numbers or marks inscribed thereon denoting such distances.[1]

Mileposts showing the distance from London Paddington, as measured above, can be seen at the lineside. In the second example shown, the distance just south of Arley Station is 140¾ miles (the vertical bars below the number show the number of quarter miles). One milepost is situated at the foot of Highley Signal Box, showing that it is exactly 143¼ miles from Paddington.

The locations of the principal mileposts were often shown on early Ordnance Survey maps, such as this example from 1903 showing the presence of mileposts (MP) at Kidderminster Junction on both branches of the junction.

Although the mileposts seen today were re-created in the modern era, they closely follow the historical design. The remains of this original milepost can still be seen next to the trackbed between Ironbridge and Buildwas.

Mileage oddities

In addition to the 'discontinuity' in the mileage at Bewdley South Junction referred to above, the present day SVRSevern Valley Railway being situated on three different ELRs gives rise to some other apparent oddities. Leaving Kidderminster, the mileage initially decreases as you pass the first milepost by the carriage shed but then increases again as you continue (due to setting off towards London but then curving away from it). Reaching Kidderminster Junction, this is two different distances from London, depending on whether you are on the OWWOxford Worcester and Wolverhampton Railway line or the Severn Valley Branch (due to the latter being approached by the reversal point). Finally, on Safari Park Curve you pass milepost 137¾, and a short time later you enter Bewdley Station passing another milepost 137¾ (the former being reached via the Loop and the latter direct via Hartlebury.

Modern distance markers

Evidence of another measurement system used for operational purposes can also be seen on the SVRSevern Valley Railway. The distances have been measured from Kidderminster in kilometres, with a small marker tag attached to the web of the rail every 100 metres. The locations of these have been highlighted by white paint on the chair or sleeper adjacent to the marker. Examples can be clearly seen from the platform at Bewdley (5.700) and near the Highley cattle dock (15.100).

See also

Engineer's Line References
Main Page

References

  1. Railways Clauses Consolidation Act 1845 Retrieved 23 May 2016