Official

(Photo courtesy of Kyobashi Library, Chuo Ward, place names are inserted in the image.)

If you look at the photo above, you can see the seafood bridge is the entrance to the Tsukiji market in Tsukiji, which spans the Tsukiji Kawahigashi tributary. The Tokyo City Central Wholesale Market Tsukiji Honjo was completed on December 13, 1933 (Showa 8), and will officially start operations on February 12, 1935 (Showa 10), but Kaikobashi was prior to that. Completed in 1927 (Showa 2). The bridge was designed by an engineer at the Tokyo City Road Bureau, and the construction was carried out by Yokogawa Bridge Manufacturing Co., Ltd. (currently Yokogawa Bridge Corporation). .

(Photo courtesy of Kyobashi Library, Chuo Ward)

The explanatory version contains a photo seen from the Tsukiji River Nanshi River, but the above photo shows the Tsukiji Market from the direction of Namiki Shrine. It is a steel girder bridge with a main structure of a thick girder, and a bridge length of 27.5m and a width of 15m, characterized by a thin and gentle curve arch (reinforcement member).

However, the Tsukiji Kawahigashi tributary was landfilled between Kitamon Bridge and Ichiba Bridge in June 1977 (Showa 52), and construction was completed in March 1978, the following year. . The surface of the water from Ichiba Bridge to Kaiyuki Bridge was reclaimed in 1995. And in 2002 (Heisei 14), the Kaiko Bridge was removed leaving four main pillars. The main pillar was registered as the central ward Tangible Cultural Property on April 1, 2003 as a valuable civil engineering heritage that conveys the design of bridges in the early Showa era.

Reference:

History of Edo Tokyo River and Waterside Dictionary Rio Suzuki

Chuo-ku public information paper column "cultural assets in ward"