Imbil Railway Bridge, Railway bridge in Imbil, Australia.

The Imbil Railway Bridge spans Yabba Creek with a half-through Pratt truss design and connects sections of the Mary Valley railway line. The structure displays characteristic steel construction techniques from the early 20th century and remains part of heritage railway operations today.

Construction finished in 1915 as part of the Mary Valley railway development that supported agricultural expansion in Queensland during the early 20th century. The line enabled farms to grow and the region to develop economically during the interwar period.

The bridge marks an era when rail transport allowed farmers to ship dairy products and turned the region into a major production area. Visitors today can sense this agricultural past in the surrounding landscape.

The bridge carries the Mary Valley branch line, now the Mary Valley Rattler, about 35.5 km from Monkland station. It stands over Yabba Creek near Imbil; the riverbanks give the clearest side view of the truss. Crossing the deck is only possible when the heritage railway is running.

The bridge is a half-through Pratt truss, a lighter variant introduced in 1909 that lacks portal or lateral bracing between the two parallel trusses flanking the rail deck. It was completed in January 1915, months before the whole Mary Valley line opened to Brooloo in April 1915.