NZ Overland Flow Path Map BETA

This interactive map is provided by SAE Ltd as a general reference tool. By using this map, you agree to the following terms.

Beta Status

This map is in beta. Data, coverage, and features are under active development. Layers may change or be updated without notice.

No Reliance

This map is for general informational purposes only. It does not constitute professional engineering advice and must not be relied upon for:

• Resource consent or building consent applications
• Property purchase or investment decisions
• Flood risk assessment or insurance purposes
• Design of stormwater infrastructure or earthworks

Accuracy Limitations

• Overland flow paths are derived from LiDAR terrain modelling, not field-verified survey
• The model does not account for stormwater pipe networks, culverts, or constructed drainage
• Results may differ from council-published flood hazard maps
• LiDAR surface imperfections may produce artefacts in flat or heavily developed areas

Limitation of Liability

SAE Ltd accepts no liability for any loss, damage, or cost arising from the use of or reliance on this map. Use is entirely at your own risk. To the maximum extent permitted by New Zealand law, all warranties (express or implied) are excluded.

Professional Advice

For site-specific flood assessment, overland flow path analysis, or stormwater design, engage a qualified professional engineer. SAE Ltd offers these services -- contact us for a quote.

Data Sources

Terrain data sourced from LINZ Data Service under CC BY 4.0 licence. Base map tiles from OpenStreetMap contributors.

I understand -- continue to map