01 / Rerouting
To escape Tama River floods, the aqueductis said to have been dug anew.
About 90 years after it was completed, in 1740, one section of the Tamagawa Aqueduct is said to have been rerouted into a new channel to avoid flood damage from the Tama River. Going upstream from Miyamoto Bridge, you reach a spot where the channel bends sharply, where the new channel meets the original one. The old channel's remains are a city historic site.
- Rerouted in 1740
- About 90 years after completion
- Old channel: city historic site

