Riverbed Alert - Waimakariri Regional Park
Click here for more information
Skip to main content Skip to site navigation
Environment Canterbury

Main navigation

My Services Login
Visit our social media pages: Facebook Twitter YouTube Instagram
Careers About us Media centre Contact us
  • Your Region
    • Your Environment
      • Air quality
      • Coastal environment
      • Climate change
      • Complying with the Resource Management Act
      • Hazardous land use
      • Natural hazards
      • Our natural environment
      • River and drain management
      • Waste and hazardous substance management
      • Water
    • Living in Canterbury
      • Emergency management
      • Regional leadership
      • Regional maps
      • Regional parks
      • Transport
    • Farmers' hub
      • Zone-specific rules and information
      • GMP
      • FEP
      • Got your consent to farm?
      • Farm rules
      • Farming resources
      • Maps and data
      • Farming news
      • Farming events
      • Industry support
      • Biodiversity-biosecurity
      • Rural Professionals
    • Plans, strategies and bylaws
    • Working with Ngāi Tahu
  • Do it Online
    • Rainfall Data
    • River Flow Data
    • Irrigation Restrictions
    • Swimming Water Quality
    • Harbourmaster's Office
    • Welcome to Consents
    • Canterbury Maps
    • Water Quality Data
    • Current Wave Data
    • Well Search
    • Solid Fuel Burner Database
    • Air Quality Data
    • Authorised Burners
    • Property Information
    • Rates Tool
    • Contaminated Land
    • Reporting Back
    • ePlan
    • Search for consents:

  • Get Involved
    • Have your say
    • Community organisation support
    • Council and committee meetings
    • Attending Council meetings
    • News & events
    • Youth engagement and education
    • Living Here newsletter
  • Document library
Menu

Floods

Breadcrumbs

Home / Natural hazards / Floods

Flooding is the most common natural hazard in Canterbury. Three main types of flooding affect our low-lying region - river flooding, local runoff flooding and coastal overtopping.

Causes of flooding

Flooding is the most common natural hazard in Canterbury. What causes it and how do most floods originate?

Flood probabilities

If one area experiences a 1-in-100 year flood, why can it happen again the next year? The mysteries of probabilities explained.

Floodplain management

Find out how floodplain management in Canterbury has evolved and what we are doing to reduce the cost of future flood events.

Reports and investigations

Floodplain strategies, technical investigations, modelling and historic flood reports.

Natural hazards

Secondary Navigation

  • Earthquakes
  • Floods
    • Causes of flooding
    • Flood probabilities
    • Floodplain management
    • Reports and investigations
  • Tsunamis
  • Landslide dams
  • View technical reports
Rainfall Data
River Flow Data

Footer

Need help?

Contact us imageContact us
online
Phone us imagePhone us
0800 324 636
Visit our offices imageVisit our
offices

Looking for something else?

  • Rates Tool
  • LAWA
  • Metro
  • Civil Defence
  • Canterbury Maps
  • More websites ...
shielded
  • Environment Canterbury © 2021
  • Accessibility
  • Privacy
  • Copyright
  • Glossary
New Zealand Government.New Zealand Government website
Environment Canterbury © 2021
Retrieved: 1:53am, Tue 19 Jan 2021
https://www.ecan.govt.nz/your-region/your-environment/natural-hazards/floods/