Brindle Heath Junction signal box located between the Up Main (to the left of the signal box) and Down Connecting (to the right of the signal box) lines.

Brindle Heath Junction signal box was a Lancashire and Yorkshire Railway Standard design which opened in 1899. The original Lancashire and Yorkshire Railway Tappet frame was replaced in 1952 by a 100 lever London Midland Region Standard frame which was reduced to 60 levers circa.1980. The box was closed on 10th May 1987 when the Connecting line to Agecroft Junction was closed and the line between Windsor Bridge and Walkden signal boxes was converted from absolute block to track circuit block. The redundant box immediately became a magnet for vandals who set it on fire by the end of the month.

The original 2x2 pane operating floor windows have been replaced and the row of single pane windows which were below them have been boarded over. The nameboard is late Lancashire and Yorkshire Railway or early London Midland and Scottish Railway origin

Protecting the junction is 53 signal (up connecting starting) which is carried on a three-doll balanced bracket with a tubular main stem. Under 53 signal used to be Irlam signal box 33 signal (Up Slow Distant). The two redundant dolls applied to movements via different routes onto the Up Goods line. Visible in the distance are 35 signal (down connecting starting) which is also Agecroft Junction signal box's down connecting home signal, and 54 signal (up connecting inner distant) which is beneath Agecroft Junction signal box's up connecting starting signal