The Takase-gawa River draws water from 'a branch of the Kamo-gawa (Yodo-gawa River system) bunryu' (a branch of the Kamo-gawa River) that runs side by side on the west bank of the Kamo-gawa River (Yodo-gawa River system) from the south of Nijo-ohashi Bridge.
高瀬川は、二条大橋の南で鴨川(淀川水系)西岸を併走する「鴨川(淀川水系)分流」（鴨川の分流）から取水する。