Applications

Flood Hazard Mapping

Application purpose:

• To provide awareness of areas at risk of flooding
• Support improved decision-making for activities and development in flood prone areas
• Reduce the cost and impact of flood events.

Application description:

• Display flood hazard polygons on top of GeoNB base maps
• Overlay flood polygons with DPM and GCADB
• provide descriptions of the flood data

Application functionality:

• Display disclaimer
• Search for a particular property, address, or location
• Display flood rasters and control transparency of flood rasters
• Display descriptions of flood data

Data requirements:

• ENV Flood Extent rasters from flood mapping projects. Includes current condition 5% AEP and 1% AEP, and climate change 5% AEP and 1% AEP, as well as a climate change HHWLT.
• SNB Building footprints and property map
• SNB DEM
• GeoNB base maps, DPM, GCADB

Responsible Agency: Department of Environment and Local Government

Issues:

• Flood data comes from two departments – DPS and ENV
• Responsibility for aspects of flooding is split between two departments
• Possible user confusion between DPS Riverwatch Application and ENV Flood Widget, as well as older flood information widget

Primary User: The public, flood responders, insurers, land use planners