頭とう首しゅ工こう

noun

headworks; diversion weir

Civil engineering term for a structure that diverts river water, typically for irrigation. Often used in agricultural and water management contexts.

• この頭とう首しゅ工こうは、周しゅう辺へんの水すい田でんに農のう業ぎょう用よう水すいを供きょう給きゅうしている。

  This diversion weir supplies irrigation water to the surrounding rice paddies.