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Flood Risk Score

Click the map or enter coordinates to assess flood risk.

Layers

VIC Flood Overlays (FO/LSIO/SBO)

Methodology

What It Measures

Rates flood risk on a 0-100 scale (100 = safest). Combines four independent data layers for comprehensive coverage across all Australian states.

Data Sources

ArcGIS Planning Overlays (VIC/NSW/SA/TAS/ACT)
JRC Global Surface Water, 38-year satellite record
HAND (Height Above Nearest Drainage), Copernicus 30m
ERA5 P95 extreme rainfall climatology

Scoring

Official overlay check (Floodway/LSIO/SBO zones)
JRC satellite flood occurrence in 500m radius
HAND elevation modifier (physical vulnerability)
ERA5 extreme rainfall compound risk
Final score = min(overlay, JRC) adjusted by HAND

Limitations

QLD, WA, NT lack public ArcGIS overlay data
JRC 30m resolution may miss localized drainage
Not a substitute for professional flood assessment

Flood Overlays

Floodway (FO/RFO)

LSIO (1% AEP)

SBO

Query Point