Tamagawa brothers

The Tamagawa brothers, Shōemon (庄右衛門) and Seiemon (清右衛門),[1] were two Japanese engineers who played a crucial part in the construction of the Tamagawa Aqueduct during the Edo period.[2]

Construction of the Tamagawa Aqueduct

The Tamagawa Aqueduct, a 43-kilometer (27-mile) long channel, brought fresh water from the Tama River to Edo, significantly improving the city's water supply and sanitation.[1] The brothers successfully completed the aqueduct in just 18 months.[2]

Recognition and Legacy

In recognition of their achievement, the brothers were awarded the surname "Tamagawa" by the shogunate, a significant honor for commoners at the time.[2][3]

References

  1. 1 2 "玉川上水" (in Japanese). Retrieved 12 May 2026.
  2. 1 2 3 "Tamagawa Josui: Edo's Precious Waterworks —Basic artery for a city of one million people—". Retrieved 12 May 2026.
  3. ↑ "玉川上水" (in Japanese). Retrieved 12 May 2026.


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