Show on mapCalton station opened in 1836 on the Clarence Railway, after various mergers it became part of the London and North Eastern Railway and was renamed Redmarshall Station in 1923.
Two set of tracks existed here, with an early example of electrification taking place in 1915 for coal traffic on the line, two pair of lines passed under the bridge with the left-side being electrified, this portal is now filled and the track lifted.
Perhaps this old insulator still on the bridge could be part of that system ?
The LNER removed the electrification in 1935, however the guard rails on this side of the bridge still remain, giving extra protection that’s not included on the non-electric side.
The passenger station itself closed on 31st March 1952
On the subject of the electrification, the railway bridge that is on Bishopton Road West still has the brackets under the bridge protruding from the brickwork that held the wires for the electrification, this part of the line is a cycle way and is easily accesible for anyone to view these, I will get a photograph in future
regarding railway bridge replacement: i think there needs to be a sign on the side of the bridge so people know what was here many years ago, history plauqe on the side.