Doki River
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} The Doki River (土器川 ''Dokigawa'') is a Japanese stream that begins in the town of Mannō (
Kagawa Prefecture is a prefecture of Japan located on the island of Shikoku. Kagawa Prefecture has a population of 949,358 (as of 2020) and is the smallest prefecture by geographic area at . Kagawa Prefecture borders Ehime Prefecture to the southwest and Tok ...
, Nakatado District) within the Sanuki Mountains and ends in the city of
Marugame is a city located in Kagawa Prefecture, Japan. , the city had an estimated population of 108,541 in 46101 households and a population density of 970 persons per km². The total area of the city is . Geography Marugame is located in north-ce ...
. The Rokkaku river is 33 km long and the catchment area is 127 km2; the population of the catchment is about 39000. In the 20th and 21st centuries devastating floods occurred in years 1912, 1954, 1976, 1990 and 2004. The 1954 flood caused the death of 1, 2180 were injured. In 2004 two levees collapsed, which resulted in submersion of 75 homes. It is the only
Class A river Rivers in Japan are classified according to criteria set by the , which was introduced in 1967. Rivers are designated as Class A or Class B river systems by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). Class A rivers is a ...
within Kagawa Prefecture. The river was named after Doki Village (土器村 ''Dokimura''), which is presently known as the Doki vicinity or neighborhood within Marugame. Doki Village was located at the source of the river, and clay from there used to be made into earthenware goods (the Japanese word ''doki'' means "pottery" or "earthenware"). The central portion or the river is called ''haraikawa'' (祓川), which is a river in which worshippers purify themselves before praying.『われら土器川探検隊』、建設省四国地方建設局香川工事事務所、企画・発行 (''Our Doki River Expedition Team'', a children's book published by the Kagawa Construction Office within the Shikoku Construction Bureau, Ministry of Construction)


Geography

The source of the Doki River is located on Mt. Ryuo (town of Mannō, Katsuura vicinity) in the Sanuki Mountains. It flows north along Japan National Route 438 through the Marugame Plain until it reaches both the Northern Doki River and Fujimi Vicinities within Marugame, where it merges into the
Seto Inland Sea The , sometimes shortened to the Inland Sea, is the body of water separating Honshū, Shikoku, and Kyūshū, three of the four main islands of Japan. It serves as a waterway connecting the Pacific Ocean to the Sea of Japan. It connects to Osaka ...
. At times parts of the river dry up due to the dry climate in Kagawa and a man-made channel modification which shortened the river.


References


External links


土器川 - Shikoku Regional Development Bureau



A CASE STUDY OF THE DOKI RIVER, SOUTHWEST JAPAN (PDF)
This page is partly translated from the existing Japanese Wikipedia article 土器川 {{DEFAULTSORT:Doki River Rivers of Kagawa Prefecture Rivers of Japan