Lachlan River railway bridge, Cowra, Railway bridge over Lachlan River in Cowra, Australia

The Lachlan River Railway Bridge is a three-span iron lattice structure crossing the Lachlan River in Cowra. The bridge features a geometric open framework typical of late 1800s railway engineering, with triangular bracing visible along its length.

Engineer John Whitton designed the bridge, which was completed between 1886 and 1887 by Fishburn & Co during a major railway expansion in New South Wales. It was part of the growing network that connected different parts of the colony by rail.

The bridge is one of twelve wrought iron lattice railway bridges built in New South Wales between 1871 and 1887, the last of that series. Nine survivors are owned and managed by the Rail Access Corporation. Its name recalls the Cowra Lattice Railway Bridge, and the structure remains a landmark on the Blayney–Demondrille line.

The bridge is accessible from Cowra Railway Station and can be reached on foot from the town center. Visiting during daylight hours allows you to see the iron structure and river setting clearly from nearby pathways.

The piers are pairs of cast iron cylinders supplied by the Stockton Forge Co of England, and the bridge retains its original fabric apart from minor repairs. It was the highest bridge in New South Wales when completed in sixteen months without a single accident, even as the Lachlan was in partial flood.