【明治用水頭首工】仮締切内整地工事へ 下流側掘削作業終了か⁈

[@timothystegner7680]

Filling the casing with sifted gravel serves to keep the excavation from caving in when the drill tube is removed. I wouldn't say the excavation is finished, i foresee a series of drillings along a line in front of the spillway.

[@user-yv8jt4eg7jChalenisi]

掘削作業しばらく続くのかと思ったら意外と終わるのが早かったですね。

[@yuki0008you]

そっかぁ 夜間は通行止めになるんですね