Aganogawa Bridge, railway bridge in Niigata, Japan

Aganogawa Bridge is a railway bridge with a truss design spanning the Agano River in Niigata. The structure consists of connected steel components arranged in a stable pattern that distributes the weight of trains evenly across the span.

Construction began on 20 August 1940, but wartime material shortages halted work with only the piers finished. Girder erection started on 5 December 1953 and was completed on 25 September 1954; the single-track bridge opened on 15 April 1956. A second, double-track truss bridge was built upstream and entered service on 18 September 1979, after which the first bridge was removed.

The bridge takes its name from the Agano River it crosses. It serves as a daily link for local residents and travelers, forming part of the ordinary fabric of transportation in the region.

Visitors should stay alert to frequent passing trains and remain on designated paths. The best time to visit is during daylight when the light makes the river landscape and bridge structure clearly visible.

The bridge has linked multiple towns along the Hakushin Line and supported their economic development for decades. Its simple, functional design shows how infrastructure coexists with nature in this part of Japan.