Flood Control During the Horeki Period
In the mid-Edo period (1603-1866), the Shogunate assigned flood control work (known as Horeki period flood control) to the Shimazu clan, who constructed the Aburajima cofferdam and other works between 1754 and 1755.
Viewing downstream from Kiso Sansen Park
Extent of flood control work during the Horeki period and a rough map of the area at that time (1755)
Distribution of ringed land communities before Meiji period conservation