About SHIRAYANAGI HIROTOSHI
About 愛媛大 大学院理工学研究科
About farm pond
About irrigation water
About construction technology
About intake dam
About structural arch
About spillway
About water intake pipe
About irrigation canal
About water supply
About water intake (engineering)
About wooden wares
About stone material
About alluvial fan
About Kagawa prefecture
About civil engineering history
About civil engineering technology
About farm pond
About bottom watershoot
About Dams in general
About 自然災害
About 土木
About レジリエンス
About 社会
About 構築
About 土木技術
About 溜池