Sekido Bridge, Steel bridge in Tama, Japan.

Sekido Bridge carries Tokyo Route 18 (the Kamakura Kaido) across the Tama River between Fuchu and Tama. The 1937 downstream span is 375.8 m long, a 13-span gerber RC girder bridge with two lanes and a combined pedestrian-vehicle walkway; the 1970 upstream Shin-Sekido Bridge adds three lanes and a separate footpath.

Sekido Bridge was built in 1937 as a replacement for the Sekido ferry, taking its name from the village of Sekido on the south bank. In 1970 a second bridge, the New Sekido Bridge, was added upstream with three lanes and a separate walkway. The original bridge was closed in 2018 for replacement, and parts of its railing and nameplate are kept in parks in Tama and Fuchu.

The bridge takes its name from Sekido on the Tama river's south bank, now part of Tama city. Before the 1937 crossing, travellers used the Sekido ferry, called Nakagawara ferry on the Fuchu side; a monument to it stands in Nakagawara Park. Parts of the old bridge's railing and nameplate are kept in Tama's Rokuseibu Park and Fuchu's Nakagawara Park.

The old 1937 span carries two lanes with a combined foot-and-vehicle path, while the parallel 1970 bridge separates its walkway from the roadway; a sidewalk exists only on the upstream side. The nearest stations are Keio Nakagawara and Seiseki-Sakuragaoka. The old bridge closed to traffic in 2018 for replacement, so check the current crossing before setting out.

The old bridge's railing and part of its nameplate are kept in Tama's Rokuseibu Park and Fuchu's Nakagawara Park, so fragments of the 1937 structure survive away from the river.