The Troy JunctionâÂÂMerrygoen railway line is a railway line located in northern New South Wales, Australia. It forms part of a cross-country link from in the Central WestâÂÂOrana to or on the Main Northern railway line. This allows goods from the western part of the state to access the Port of Newcastle while bypassing Sydney.
In December 2025, a timber trestle bridge over was destroyed in a bushfire, forcing grain traffic to be redirected. The railway line remains temporarily closed until the Australian Rail Track Corporation construct a replacement bridge, which is estimated to be complete in June 2026.
At Troy Junction in Dubbo the railway line to Merrygoen branches off the line to Coonamble.
At Merrygoen, the line joins the Gwabegar railway line.
Passenger services are no longer provided.