Nagaragawa Bridge, Intercity bridge between Kaizu and Aisai, Japan.

Nagaragawa Bridge is a road crossing over the Nagara River connecting Kaizu and Aisai. It uses a combined truss and arch design that allows vehicles to pass over the water between the two cities.

A ferry called Fukuhara Watashi once crossed the river here; it was discontinued around 1946. The bridge opened on 17 January 1987 as the last of three bridges built jointly by Aichi, Gifu and Mie prefectures for Route 125, linking National Route 155 on the Aichi side with National Route 258 in Mie over 5.8 km. In 2004 a 188 m section on the Aichi side was widened by 1.5 m.

The bridge carries Route 125, a prefectural road shared by Aichi, Gifu and Mie, and was built jointly by the three prefectures together with Tateda Bridge over the Kiso River and Aburajima Bridge over the Ibi River. It was the last of the three to open, completing a 5.8 km link between National Route 155 on the Aichi side and National Route 258 on the Mie side. It serves as an access road to the Kiso Sansen Park.

The bridge handles vehicle traffic in both directions and serves as a crossing between the two cities. Pedestrians and cyclists can also use it to cross the river.

The bridge is a steel Rosen-type arch (ローゼ橋), completed on 17 January 1987 as the last of three bridges built jointly by Aichi, Gifu and Mie prefectures. Its opening linked National Route 155 on the Aichi side with National Route 258 on the Mie side over 5.8 km. Before it stood here, the Fukuhara ferry crossed the Nagara until it was discontinued around 1946.