Sagamigawa Bridge, Railway bridge over the Sagami River, Ebina and Atsugi, Japan

Sagamigawa Bridge is a railway viaduct carrying the Odakyu Odawara Line across the Sagami River between Ebina and Atsugi. The structure supports daily commuter traffic and forms a key section of the regional rail network serving greater Tokyo.

The current bridge entered service on 13 July 1971, replacing an older iron railway bridge that was dismantled by March 1972. Concrete piers from the former alignment survived for decades near the Sagami Line crossing and by the Odawara end of the platforms; the road-side pier was removed during improvement works at Atsugi Station, gone by January 2026.

The bridge carries the Odakyu Odawara Line between Atsugi and Hon-Atsugi stations, a double-track steel structure 410.0 m long. Its six simple Warren trusses are joined by steel at the top, so from a distance it reads as one continuous truss. Concrete piers of the former bridge still stand where the old track met the Sagami Line.

The bridge lies between Atsugi and Hon-Atsugi stations on the Odakyu Odawara Line, so it is seen in passing from the train rather than visited on foot. The 410 m steel structure is best viewed from the riverside below; concrete piers of the old track remain near the Sagami Line crossing.

The bridge has six simply supported Warren trusses, joined by steel members along the top so that from a distance it reads as one continuous truss. Its total length is 410.0 m. Concrete piers from the earlier bridge survived for years, one near the Sagami Line crossing and one by the Odawara end of the platform; the road-side pier was removed by January 2026 during improvements at Atsugi Station.