List of rivers under business

　Yokohama City has selected small and medium-sized rivers that require drastic flood control measures as "plan 28 rivers" and is working to reduce inundation damage through the implementation of urban infrastructure river improvement projects and mutatis mutandis river improvement projects. As for the scale of the renovation, based on river rehabilitation that does not cause damage even at least about 50 mm of hourly rainfall, we will improve the narrow meandering river into a wide and linear river so that floods can flow safely when flooding occurs due to heavy rain, etc. I am.