福井川橋樑, Railway bridge in Sasebo, Nagasaki Prefecture, Japan

Fukuigawa Bridge is a single-track railway bridge on the Matsuura Railway Nishi-Kyushu Line, spanning the Fukuigawa, a tributary of the Sazagawa, between Nagatani in Yoshii-chō and Tanomoto in Emukae-chō, Sasebo, Nagasaki Prefecture. It is a concrete bridge with three arches, 79 m long overall, with the arch section measuring 67.06 m and an arch radius of 10 m.

The bridge was completed in 1942 for the planned Imari Line of the national railway, and it entered service on 13 April 1944 when the section between Senryūga-taki and Yoshii opened. It is a three-arch concrete structure 79 m long, with 67.06 m in the arch section and an arch radius of 10 m. It was registered as a national Tangible Cultural Property in September 2006, together with two other bridges on the same stretch.

The bridge is a concrete three-arch structure on the Matsuura Railway Nishi-Kyushu Line, between Nagasaki Prefecture's Sasebo City and the former Yoshii and Emukae towns. It was registered as a national Tangible Cultural Property in September 2006, together with two other bridges on the same stretch, and is also designated a Nagasaki Prefecture townscape asset.

The bridge carries the single-track Matsuura Railway Nishi-Kyushu Line between Nagasaki's Sasebo city and Hirado; it is not open to road traffic. The nearest stop is Rekigan-no-taki Station, about five minutes on foot. Nishi Bus services also stop at Matsubara-machi and Tanomoto.

Residents testified that bamboo reinforcement, not steel, may have been used in the concrete because iron was scarce during the war. Matsuura Railway began investigating in 2002, and in February 2006 commissioned Kogakuin University to carry out electromagnetic radar testing and core sampling from the arches; no bamboo was confirmed, and the survey ended inconclusively.