Bournemouth West Junction Signal Box

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Overview

Railway signal box, 1882 for the London & South Western Railway. Read the official list entry to find out more.

Heritage Category:: Listed Building
Grade:: II
List Entry Number:: 1413713
Date first listed:: 30-Apr-2013
List Entry Name:: Bournemouth West Junction Signal Box

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Official list entry

Heritage Category:: Listed Building
Grade:: II
List Entry Number:: 1413713
Date first listed:: 30-Apr-2013
List Entry Name:: Bournemouth West Junction Signal Box
Location Description:: It is situated at SZ 0635491871, to the west of the Branksome and Bournemouth maintenance depot.

This List entry helps identify the building designated at this address for its special architectural or historic interest.

Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

This List entry helps identify the building designated at this address for its special architectural or historic interest.

For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.

Understanding list entries

Corrections and minor amendments

Location

The building or site itself may lie within the boundary of more than one authority.

District:: Bournemouth, Christchurch and Poole (Unitary Authority)
Parish:: Non Civil Parish
National Grid Reference:: SZ0635791871

Summary

Railway signal box, 1882 for the London & South Western Railway.

Reasons for Designation

Bournemouth West Junction Signal Box, a LSWR type 3 of 1882, is designated at Grade II for the following principal reasons: * Rarity: one of the few remaining examples of a signal box type that has become increasingly rare on the former LSWR network; * Fittings: for the retention of operating equipment, including its original mechanical lever frame; * Intactness: the replacement of the windows has not been to the detriment of the legibility of the structure as a whole.

History

From the 1840s, huts or cabins were provided for men operating railway signals. These were often located on raised platforms containing levers to operate the signals and in the early 1860s, the fully glazed signal box, initially raised high on stilts to give a good view down the line, emerged. The interlocking of signals and points, perhaps the most important single advance in rail safety, patented by John Saxby in 1856, was the final step in the evolution of railway signalling into a form recognisable today. Signal boxes were built to a great variety of different designs and sizes to meet traffic needs by signalling contractors and the railway companies themselves.

Signal box numbers peaked at around 12,000-13,000 for Great Britain just prior to the First World War and successive economies in working led to large reductions in their numbers from the 1920s onwards. British Railways inherited around 10,000 in 1948 and numbers dwindled rapidly to about 4000 by 1970. In 2012, about 750 remained in use; it was anticipated that most would be rendered redundant over the next decade.

From the late 1870s, the London & South Western Railway favoured hipped roof signal boxes with generous amounts of glazing and rectangular toplights. They were a clear development from the somewhat squat Type 1 design built from about 1871-1880, being larger and lighter. The type 2 design retained valancing which largely obscured the toplights, but for the type 3, built between 1884 and 1895, the valancing was omitted giving the signalman an unobstructed view and, in addition, the size of the windows was increased so that they were now four panes deep.

Bournemouth West Junction Signal Box, a type 3a design, on the London & South Western Railway was built in 1882. It is situated on the up (southern) side of the line and controlled access into Bournemouth West station which was opened in 1874. The station closed in 1965, but the signal box was retained to control the carriage sidings to the maintenance depot put in as part of the Bournemouth electrification scheme. More recently the windows and operating room door have been replaced, and the roof ventilator has been removed. Internally a control panel has been installed.

Details

MATERIALS: constructed of brick with a timber superstructure under a Welsh slate roof.

DESCRIPTION: tall, narrow signal box with a shallow-pitched, hipped roof which originally had a wooden roof ventilator that has been removed. Brick pilasters divide the ground floor of the front (north) elevation into two bays. Each has a modern uPVC window under a segmental-arched brick head, with a dentil course of bricks above. Set above the ground-floor front windows is a name board reading 'West Junction'. At first floor, both the front and side elevations are fully glazed with top lights, except for the entrance in the east end wall. The windows are uPVC; the pattern of individual lights has been replicated but not those for the glazing bars. An external gantry runs along the north and west sides of the first floor. The doorway to the operating room is set within a projecting porch and is reached by a external timber staircase. There is a further doorway with segmental-arched head to the ground floor of the east elevation.

INTERIOR: the operating room retains a Steven’s frame of 24 levers and has had a control panel installed.

Sources

Books and journals
Minnis, J, Railway Signal Boxes, a Review, (2012)
Vanns, A, The Signal Box: A Pictorial History and Guide to Designs, (1997)

Legal

This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.