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

Legend

Designated water level
Flood inundation water level	4.51
80% water level	3.16
50% water level	1.80

Observation data
＊	Missing
Blank	Unmeasure

* Depending on the installation condition of the water gauge, the water level below 0.15m cannot be observed, therefore the measurement value will not change.