Arakawa River (Kantō)

The Arakawa River (荒川, Arakawa) is a 173-kilometre (107 mi) long river that flows through Saitama Prefecture and Tokyo.[1] It average flow in 2002 was 30m³/s.

This article is about the river in Tokyo. For other uses, see Arakawa River (disambiguation).
Arakawa River
A bend in the Arakawa River
Native name荒川  (Japanese)
Location
CountryJapan
Physical characteristics
Source 
 • locationMount Kobushi (甲武信ヶ岳)
 • elevation2,475 m (8,120 ft)
Mouth 
 • location
Tokyo Bay
Length173 km (107 mi)
Basin features
River systemArakawa

It originates on Mount Kobushi in Saitama Prefecture, and empties into Tokyo Bay.[2] It has a total catchment area of 2,940 km2 (1,140 sq mi).

The river is one of Tokyo's major sources of tap water, and together with the Tone River, accounts for around 80% of Tokyo's water supply as of 2018.[3]

History

Attempts to control flooding of the Arakawa River have been made since the area that is now Tokyo became the de facto capital of Japan during the Edo period. Following a major flood in 1910 that damaged a large part of central Tokyo, a 22-kilometre (14 mi) long drainage canal was constructed between 1911 and 1924. In 1996 an agreement was signed to make it a "sister river" of the Potomac River in the eastern United States.[2] This means that officials and volunteers from both river areas collaborate in helping to beauty the other rivers.[4]

Media

This river is also depicted in many anime such as: Toaru Kagaku no Railgun

See also

References
  1. "Our Planet: Arakawa River". Planet Labs. Archived from the original on 11 March 2016. Retrieved 2 November 2015.
  2. "(Arakawa - Potomac sister rivers)". Interstate Commission on the Potomac River Basin. 27 January 2012. Archived from the original on December 27, 2013. Retrieved 27 December 2013.
  3. "水系別貯水量の推移 | 水源・水質 | 東京都水道局". www.waterworks.metro.tokyo.jp (in Japanese). Retrieved 2018-08-27.
  4. "Potomac Basin Reporter". msa.maryland.gov. Retrieved 2020-11-25.


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