After Doton's death, Doboku YASUI, Doton's male cousin and Toji HIRANO (Toji ANDO), one of the Sakagami clan of Hirano Ward took over the excavation of the canal with the permission of Tadaaki MATSUDAIRA and completed it in November 1615.
水路の堀鑿は、道頓の死後、松平忠明の許可を受けて道頓の従兄弟の安井道卜や平野区の坂上氏の一族の平野藤次（安藤藤次）らが跡を継ぎ、同年11月に完成させた。