石狩大橋, Steel bridge in Ebetsu, Japan

The Ishikari Bridge carries Hokkaido Route 139 (Ebetsu–Naiie Line) across the Ishikari River in Ebetsu, Hokkaido. Completed in 1979, it is 894.0 m long and 8.75 m wide, with a roadway of 6.75 m and a 2.0 m walkway. Its steel superstructure weighs 3,062 t and combines three 109.0 m truss spans, a 70.2 m box girder and seven 70.5 m continuous box-girder spans.

The original wooden bridge was built in 1920 after local residents campaigned for a crossing point at this location. The current steel structure replaced it and has served the area for several decades.

The bridge is woven into daily life in Ebetsu, connecting communities that depend on it for crossing the river. Local residents pass through it regularly as part of their routine journeys.

The bridge is easily accessible near Ebetsu Station and connects to Route 139. Both pedestrians and cyclists can cross it alongside vehicles, and the crossing is available throughout the day.

The current design features three continuous steel box girders, a modern engineering solution when completed. This construction method enabled a more stable and longer crossing than the original wooden bridge.