抄録
This study is to examine how Toyama, a castle town, harnessed the creeks which flew through the town, focusing on its drainage system. For this purpose, function, structure and construction process as well as storm water discharge of the system are examined. Resulted findings are as follows. 1) Water from irrigation system for farms on the back of the town flew into the creeks and increased the risk of flooding. 2) The major channel of the system was dug to detour the creeks around the town. 3) Storm water exceeding capacity of the major channel resulted floods of the creeks.
