The original single-track Como Railway Bridge spanning the Georges River began service with the opening of the railway station at Como on 26 December 1885
In 1972, a new concrete dual-track railway bridge was opened to the west of the original Como Railway Bridge to remove the bottleneck imposed by the original single-track design which had reduced service numbers on the increasingly busy Sutherland line.
The original Como Railway Bridge has since been converted into a pedestrian bridge for use by members of the public as well as cyclists wanting to cross the Georges River. The bridge also now features Sydney Water's pipeline running from Woronora Dam to Tempe.