Sewer/backflow flooding
Flooding from surcharged sewers/drains or reverse flow through outfalls during storms/tides.
Example Usage
"We added backflow prevention after repeated sewer surcharge flooding."
Typical Units & Data
Sewer level (m), surcharge duration
Related Keywords
Related Terms
Fluvial flooding
Flooding from rivers/streams when discharge exceeds channel capacity or defences are overtopped..
Flood Mechanisms & DriversPluvial flooding (surface water)
Flooding from intense rainfall when drainage/infiltration capacity is exceeded, often in urban areas..
Flood Mechanisms & DriversCoastal flooding
Flooding from sea water due to high tide, storm surge, waves, overtopping or breaching..
Flood Mechanisms & DriversGroundwater flooding
Flooding when groundwater rises to the surface, often after prolonged rainfall in permeable geology..
Flood Mechanisms & DriversFlash flood
Rapid-onset flooding with very short lead times (minutes to hours), typically from intense rainfall..
Flood Mechanisms & DriversStorm surge
Temporary rise in sea level driven by low pressure and wind, superimposed on the tide..
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