The three bridges were built at the intersection of the four Horikawa rivers, the Kyobashi River, the Sanjumobori, Hatchobori (later Sakuragawa) and the Momijigawa River, so they were commonly called "Mitsuhashi". At present, near the entrance to Kyobashi on the expressway, there is an explanation board of "Mitsuhashi Ruins" (upper left in the photo) in front of Ginza Lafinate (formerly Kyobashi Kaikan), and a monument of the bridge on the south side of Danshobashi Higashizume. I have.
The scenery of the Edo period is also well known that it is depicted as "Mitsuhashi" in the "Edo Famous Zoukai". According to the book, "From Kita Hatchobori (currently Hatchobori 3, 4-chome) to Motokicho 8-chome (currently Kyobashi 2, 3-chome)", "Bunshobashi" (the residence of Shimada Dansho Kosuke at the corner of Matsuyamachi) ), And crosses from Motozaimokucho to Shiraoiyashiki (currently Ginza 1-chome). In addition, the bridge from the white fish mansion to Minami Hatchobori (now Shintomi 1-chome) was named Shinpukuji Temple Bridge. "
What is interesting to see is that there were only three bridges, although the intersections of four rivers. In other words, the Kaede River had a Dansho Bridge, the Kyobashi River had a Ushi no Kusahashi Bridge, and the Sanjumabori had a Shinpukuji Temple Bridge, but it was not over Hatchobori. But you can see that 3 bridges alone can go to 4 points. You will cross all three bridges from Kita-Hatchobori to Minami-Hatchobori. At that time, there was no bridge over the diagonal line, so this may have been good. In modern times, would you build a bridge that connects four points?
"Ushi no Kusabashi" (later Shiraoibashi) and "Shinpukuji Temple Bridge" were reclaimed. At present, "Bunsho Bridge" (upper right in the photo) has been reclaimed and has become an expressway, but it is over Kaji Bridge above it.
Former Dansho Bridge was famous as Japan's first steel bridge in 1878 (1878). The male figure is still an active bridge, Hachiman Bridge (left photo), which spans the site of Yahata moat, east of Tomioka Hachimangu Shrine in Fukagawa. The iron material was manufactured at the Akabane Plant of the Ministry of Construction, and a chrysanthemum emblem (lower right in the photo) remains on a part of the bridge. A 15.2m long, 2m wide, single-diameter arch bridge, a wipple-shaped truss structure of American Scroyer Wipple. It was relocated and renamed in 1929 (1929). In 1989 (1989), he received an honorary award from the Civil Engineers Association of the United States. It is now a nationally designated important cultural property (building).
