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Although not on [[Severn Valley Railway (Holdings) PLC|SVR]] property, the BR(W) designed '''Kidderminster Junction signal box ''' formerly controlled the [[Connection to Network Rail | main line connection]] to the Severn Valley Railway in conjunction with the SVR's own [[Kidderminster signal box]].

The [[File: OS_Kidderminster_Junction_SB_1903_1938.jpg|thumb|400px|right|OS Maps of 1903 OS map(left) and 1938 (right)]]On 29 August 1877, although particularly detailedas part of preparations for the opening of the loop the following year, does not show the GWR authorised expenditure for completion of the [[Absolute Block|block system]] between "the north and south boxes at Kidderminster" as well as block and single needle telegraph apparatus for the new line itself.<ref>[[Bibliography#Books|Marshall (1989)]] p. 128.</ref> The "south box" presumably referred to a new box built to control the junction, with the"north box" being the [[Kidderminster Station signal box (c.1882-1973)|main signal box]] in the vicinity of the junctionstation itself. The first Junction box was perhaps McKenzie and Holland with a 35 lever frame, replaced by a new 40 lever frame circa 1912.<ref>Signal Box Register, Volume 1: Great Western, revised 2011 edition, Signalling Record Society (plus correction sheet #9)</ref>

A signal box was present in The illustration opposite shows two extracts from OS maps of the junction. In the 1938 OS 1903 map, reproduced in "Western Main Lines, Worcester the building to Birmingham via Kidderminster" the east of the main line immediately south of the “Wooden Bridge” (Mitchell & SmithFB). It was located between is not given the two signal posts (usual "SPSB") near label, but appears to be the top of the extract aboveoriginal Junction signal box. Narrative in the book accompanying the OS At least one subsequent map extract refers to <ref>[[Bibliography#Books|Mitchell and Smith (2007)]] fig. V.</ref> did include "''The 1924 Junction box''SB" but provides no other information or confirmation for that this was the first signal box controlling the junctionbuilding.

A later 1938 OS map which is reproduced as Fig. X in "Western Main Lines, Worcester to Birmingham via Kidderminster" (Mitchell & Smith) shows a signal box at a location further south, beyond the signal post (SP), with the original box no longer present. Narrative in the book accompanying the 1938 OS map extract refers to "''The 1924 Junction box''". The Signalling Record Society Website provides the additional information that "''A replacement GW type 28B box was built here in December 1937''".

The most recent signal box was of quite a modern design, having been built in October 1953, and contained a 63 lever frame. The GWR 1937 signal box on the same site was demolished by a derailed wagon earlier in 1953, and a temporary signal box was used for a short while until the replacement was built<ref>Kidderminster Jcn Signal Box, Signalling Record Society Website. http://www.s-r-s.org.uk/html/gws/S2605.htm. Accessed 10/05/2015</ref><ref>Stourbridge Line Signal Boxes - Kidderminster Junction | Martin's Railway Ramblings. http://martincreese.blogspot.com/2012/07/stourbridge-line-signal-boxes.html. Accessed 10/05/2015</ref>.

*[[Connection to Network Rail]]<br>*[[Kidderminster signal box]]<br>*[[List of signal boxes#Kidderminster Loop Line | List of signal boxes]]