Kano River

This river originates near Amagi Pass in the center of the Izu Peninsula in Shizuoka Prefecture, flows north, and empties into Suruga Bay at Ganyu-do in Numazu City. It is a first-class river. It is 46 kilometers long and has a drainage area of ​​852 square kilometers. It has tributaries such as the Nekko River, Funahara River, Omi River, Fukazawa River, Daiba River, and Kise River. The upper reaches of the river have beautiful valleys, and wasabi fields that use the clear water can be seen. Due to the influence of lava flows, there are Joren Falls and Banjo Falls. Downstream from Shuzenji Bridge is the North Izu Plain, also known as the Tagata Plain. It forms a deltaic alluvial plain, but is also prone to flooding, and the Kanogawa Typhoon in 1958 (Showa 33) caused unprecedented damage. For this reason, in 1965, the Kano River Floodway was constructed, stretching from Mamanoue in Izunagaoka Town (now Izunokuni City) to Kuchino in Numazu City, and artificial river construction, such as embankments and shortening of the river course, is also underway. The river course has changed dramatically, with old river channels and natural levees developing. After merging with the Kise River, it passes through a narrow section and flows through Numazu City. It is famous as a fishing spot for sweetfish. In Matsugase, Izu City, there is Karuno Shrine, which is associated with shipbuilding and is said to be the origin of the name Kano River.

[Kitagawa Mitsuo]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

静岡県伊豆半島中央部の天城峠(あまぎとうげ)付近に源流をもち、北流して沼津市我入道(がにゅうどう)で駿河湾(するがわん)に注ぐ川。一級河川。延長46キロメートル、流域面積852平方キロメートル。猫越(ねっこ)川、船原川、大見川、深沢川、大場(だいば)川、黄瀬(きせ)川などの支流をもつ。上流は渓谷美をもち、清流を利用したワサビ田がみられる。溶岩流の影響で浄蓮(じょうれん)ノ滝、万城(ばんじょう)ノ滝などがある。修善寺(しゅぜんじ)橋から下流は北伊豆平野となり、田方平野(たがたへいや)ともよばれる。三角州性沖積平野を形成するが、水害も多く、1958年（昭和33）の狩野川台風は未曽有(みぞう)の災害をもたらした。そのため1965年に伊豆長岡町（現伊豆の国市）墹之上(ままのうえ)から沼津市口野(くちの)に至る狩野川放水路が建設され、また築堤、流路の短絡化など人工河川化も進行している。流路の変遷も激しく、旧河道や自然堤防が発達している。黄瀬川を合流したあと狭窄(きょうさく)部を通過し、沼津市街地を貫流する。アユの釣り場として有名。伊豆市松ヶ瀬には造船にちなむ軽野神社(かるのじんじゃ)があり、狩野川の名称の由来ともいわれる。

［北川光雄］

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