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Updated Floodplain Mapping
The Region of Durham has partnered with the Ganaraska Region Conservation Authority (GRCA) to update floodplain mapping for Lovekin, Bouchette Point and Port Granby Creeks, as well as the northwestern portion of the Ganaraska River watershed.
Updating the floodplain mapping for these creek systems is important as the current mapping is 46 years old. The GRCA will be hosting an upcoming Public Information Centre (PIC) to share the updated floodplain mapping for these watersheds.
Floodplain mapping information is critical to help identify areas that may be at risk of flooding during severe storms, to assist the community with emergency preparedness, and is also an important municipal land use planning tool.
Draft floodplain mapping will be available on GRCA’s website for viewing starting on January 18th, 2024, in advance of the PIC. Comments can be made within the mapping viewer and will be received until February 18th, 2024.
This project is being funded in part by the Flood Hazard Identification & Mapping Program (FHIMP).
Project Timeline & Status
- Summer 2022
Field Survey of Bridge & Culvert Structures - Spring 2023
Background Data Review - Summer – Fall 2023
GIS Data & Model Development
- Fall 2023 – Winter 2024
Report & Map Production - Winter 2024
Public Information Centre - March 2024
Project Completion
- The importance of floodplain mapping in building resilient communities is highlighted in the following article:
https://conservationontario.ca/conservation-authorities/flood-erosion-management/floodplain-mapping - Priority #1 of Ontario’s Flooding Strategy is “Understand Flood Risks”:
https://www.ontario.ca/page/protecting-people-property-ontarios-flooding-strategy
To find answers to some of the common questions asked about floodplain mapping and this update, take a look at our Frequently Asked Questions (FAQ) information sheet:
Property owners play an important role in flood prevention and preparedness. The following resources have been developed to help area residents take action to reduce their flood risk:
For further information about this study, contact the Project Technical Lead:
Cory Harris, P. Eng.
Watershed Services Coordinator
Ganaraska Region Conservation Authority
charris@grca.on.ca
905.885.8173 ext. 226