Tribute to Toshirou Okamoto Part 2: Kiyosubashi Bridge

Part 2 in the tribute series to Toshirou Okamoto looks at a steel eyebar suspension bridge spanning the Sumari River in Tokyo, one of many that surivived World War II. The information is as follows:

Kiyosubashi Bridge

Kiyosubashi is a bridge over the Sumida-gawa River that runs through Tokyo Metropolitan Road No.
474, Hamacho Kitasunacho Line (Kiyosubashi). The name “Kiyosu” was selected from applicants who
were interested in the names of Kiyosumi-cho, Fukagawa Ward and Nakasu-cho, Nihonbashi Ward on
both sides of the river at the time of construction.
The bridge was planned together with Eitai Bridge as a reconstruction project after the Great Kanto
Earthquake.
The bridge was designed to be a pair with the Eitai Bridge, which was called “Gates of
Imperial Tokyo” and also called “The Flower of Disaster Reconstruction” for its elegant design. It is
modeled after the Hindenburg Bridge (English and German versions) in Cologne, Germany, which was
called the world’s most beautiful bridge at the time (the bridge was destroyed in World War II and is now
not a suspension bridge because another bridge was rebuilt). Efforts were made to reduce the cross
section of the steel by using low-manganese steel under study in the Navy. It is also the place where there used to be a ferry boat called “central delivery”.


In 2000, the bridge and Eitai-bashi Bridge were selected as “1st JSCE Selected Civil Engineering
Heritage” of the Japan Society of Civil Engineers. On June 18, 2007, this bridge, together with Kachidokibashi Bridge and Eitaibashi Bridge, was designated as a national important cultural property (building) for the first time as a prefectural highway bridge.


Description of the Bridge:


•Structural Style – Self-anchoring Steel Suspension Bridge
•Length of bridge: 186.3 m
•Width 22.0 m
•Construction begins in March 1925.
•Completed in March 1928
•Main contractor: Tokyo City Reconstruction Bureau
•Design: Seiichi SUZUKI (Architects such as Mamoru YAMADA and Bunzo YAMAGUCHI (Kazō
Okamura) were involved in the design.)
•Kobe Kawasaki Dockyard & Machinery Works

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Information and photos courtesy of Toshirou Okamoto.

Photo by Pixabay on Pexels.com In Memoriam Toshirou Okamoto