Runcorn Signal Box

Runcorn Signal Box is a railway signal box built in 1940 for the London Midland Scottish Railway, designed to meet Air Raid Precaution specifications.

The building is constructed of red brick laid in English bond on a flush plinth of blue engineering bricks. It features steel framed windows set in concrete surrounds and has a reinforced concrete roof.

The signal box is two storeys high, with a blind ground-floor locking room and a first-floor operating room that has five windows overlooking the tracks to the east. The windows are square, with plain, slightly projecting concrete surrounds, and are divided into eleven panes, with the larger central pane functioning as an opening casement surrounded by fixed panes. Both the northern and southern ends of the signal box have similar windows that continue the front elevation's design. Below the windows, at floor level, are two flush-faced bands of blue engineering bricks set on end, separated by three courses of red brickwork. The flat concrete roof projects on all sides. Access to the signal box is via modern steel steps at the northern end, leading to a segmentally arched doorway to the operating room, which has a modern replacement door. At the top of the steps, there is also a modern, plastic-clad toilet cubicle.

Inside, the operating room features a reinforced concrete floor and retains its original lever frame with 46 levers, located at the rear of the box facing away from the tracks.