Flood Plain Mapping

Conservation Authorities are responsible for flood plain managementExample of Flood Plain Map

Identifying lands that are vulnerable to flooding is an important responsibility for Ontario’s Conservation Authorities as delegated by the Ministry of Natural Resources. Accurate engineered flood plain mapping is the foundation of effective flood plain management. In Eastern Ontario the 1:100 year flood plain is the regulatory standard calculated as having a 1% chance of occurring in any given year.  Conservation Authorities use the mapping in the administration of regulations made under the Conservation Authorities Act.

These flood plain management responsibilities include:

  • Identifying lands subject to flood hazards
  • Supporting Regulations under Section 28 of the Conservation Authorities Act
  • Supporting land use designations in planning documents in accordance with the Planning Act and its Provincial Policy Statement



 


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