長良川橋梁, Railway bridge in Gifu, Japan.

The Nagaragawa Bridge, also called Maeno Bridge, is a railway bridge on the Tokaido Main Line between Nishi-Gifu and Hozumi stations, linking Gifu City and Mizuho City. Its two tracks are separate structures, each 462 m long in ten spans. The 1914 up-line has a curved-chord Pratt truss in spans 4–8, while the 1960 down-line uses parallel-chord Warren trusses there; spans 1–3 and 9 on both lines date from 1914.

The original bridge opened in 1887 but the cast iron piers failed during the 1891 Nobi earthquake and required complete rebuilding. A second track was added much later in 1960 to meet growing rail traffic demands.

The bridge is also known as Maeno Bridge. It appears in the anime film A Silent Voice, which reproduces the truss girders faithfully, down to the differing heights of the spans. Local residents cross the Nagara River by train on it daily.

The bridge lies between Nishi-Gifu and Hozumi stations on the Tokaido Main Line, so it is seen from the train window rather than on foot. Spans 1–8 cross the Nagara River; spans 9 and 10 cross the Tennyu River tributary and Gifu Prefectural Route 163 on the Mizuho side.

Each track employs a different truss design, with one side using Warren trusses and the other using Pratt trusses. This mix shows how engineering standards evolved during the separate construction periods of the two tracks.