Nishikigawa River

Japanese: 錦川 - にしきがわ
Nishikigawa River

A river that flows east through eastern Yamaguchi Prefecture and empties into Hiroshima Bay. It is the largest river in the prefecture and is also called the Iwakuni River. Its drainage basin covers the northeastern area of ​​Iwakuni City and Shunan City, with an area of ​​889.8 square kilometers and a length of 110.3 kilometers. The main stream originates near Azamigadake on the border with Shimane Prefecture, flows south through the Kano Basin, creates a deep gorge near the Susuma Plateau, meanders, then turns northeast, merges with the tributary Usa River, and flows southeastward. It is a complex flood-prone river. In the downstream, it enters the Iwakuni region from the Mikawa area of ​​Iwakuni City (formerly Mikawa Town, Kuga County), where a small valley bottom plain can be seen, and at the mouth of Iwakuni, it forms a typical delta plain and flows into Hiroshima Bay in the Akinada Sea. National Route 187, the Sanin Sanyo Link Road, and the third-sector Nishikigawa Railway run along the narrow river valley. The Koudou Dam and Sugano Dam were built in the middle reaches of the river to ensure water for the Shunan industrial area.

[Hajime Miura]

[Reference items] | Iwakuni (city) | Kano | Hiroshima Bay

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

山口県東部を東流して広島湾に注ぐ川。県下最大の河川で岩国川ともいう。岩国市、周南(しゅうなん)市北東部の範囲を流域とし、その面積889.8平方キロメートル、流路延長110.3キロメートル。本流は島根県境の莇岳(あざみがだけ)付近に発し、鹿野(かの)盆地を南流して、須々万(すすま)高原付近で深い峡谷をつくって曲流し、さらに北東方向へ転じ、支流宇佐川を合流してのち南東流する複雑な流路をとる氾濫(はんらん)性の河川である。下流では岩国市の美川地域(旧、玖珂郡美川町)から岩国地域に入ってわずかに谷底平野がみられ、岩国の河口部では典型的な三角州平野を形成して安芸灘(あきなだ)の広島湾に流入する。狭い河谷に沿って、山陰山陽連絡路の国道187号、第三セクター錦川鉄道が通じている。中流には周南工業地域への用水を確保する向道(こうどう)ダム、菅野(すがの)ダムが建設されている。

[三浦 肇]

[参照項目] | 岩国(市) | 鹿野 | 広島湾

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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