They included the replacement of Kikuchi-gawa River, a dam for cormorant fishing on Midori-kawa River, a dam for worshipping from a distance on Kuma-gawa River and several improvement works on Shira-kawa River.
菊池川の付替、緑川の鵜の瀬堰、球磨川の遥拝堰、白川に於ける各種改修等。