 Berwyn originally had a relatively short platform but with an increase in summer services in the early Edwardian period, the platform was extended across the viaduct with timber decking on wrought iron frames.This unusual cantilevered platform at the western end of the station was dismantled in the late 1950s due to its deterioration and a lack of passengers.During the First World War, local teenage conscripts wrote their names and messages in indelible pencil on the wall of a pedestrian tunnel beneath Berwyn station in 1915.