Tokyo Metropolitan - Flood Control Integrated Information System (Bureau of Construction River Division) Provide

Legend

Designated water level
Flood inundation water level	4.30
80% water level	3.01
50% water level	1.72

Observation data
＊	Missing
Blank	Unmeasure

* Depending on the installation condition of the water gauge, the water level below 1.29m cannot be observed, therefore the measurement value will not change.