Water Supply Act Article 51

A water supply enterprise, based on engineering needs, may use the rivers, ditches, bridges, culverts, protecting embankments, roads and so on without interfering with their original usage after consulting with the authority-in-charge.
中文原文 自來水法第51條
自來水事業因工程上之必要,得洽商有關主管機關使用河川、溝渠、橋樑、涵洞、堤防、道路等,但以不妨礙其原有效用為限。

English translation for reference only; the Chinese text prevails. Not legal advice.