暗あん渠きょ

noun

culvert; underground drain; conduit

Refers to a covered channel or pipe that carries water underground, often used in civil engineering or drainage contexts. Contrasts with 明渠 (open ditch).

See also: 明渠

• この道どう路ろの下したには古ふるい暗あん渠きょが通とおっている。

  An old culvert runs under this road.

• 暗あん渠きょ工こう事じのため、通つう行こう止どめになります。

  The road will be closed due to culvert construction.