Abstract
Johganji-gawa river control project has been planned by J.de Rijke and constructed in Meiji era. In this paper, (1) the historic process ofdesign high water level, (2) the structure of the dyke, which can be matched with current specifications, and (3) the planning of Kasumidyke, which has different functions from the current established theory will be focused.
Under the construction of the river works, Moromoto Nishi issued a serial articles by newspaper. The possibility and the background of that society will also be stated in the paper.