Discover mapping to help you prepare for a flood emergency on your property

Knowing the extent of the floodplain is an important tool for Conservation Authorities like ours to support our land use planning and emergency management responsibilities. We know it's complicated and wanted to create a tool the average person can use to better understand if they might be vulnerable to flood-prone areas next to a river, stream or Lake Ontario and can take the necessary steps to be prepared. 

LYSCA flood.jpg

Knowing the extent of the floodplain is an important tool for Conservation Authorities like ours to support our land use planning and emergency management responsibilities. We know its complicated and wanted to create a tool the average person can use to better understand if they might be vulnerable to flood-prone areas next to a river, stream or Lake Ontario and can take the necessary steps to be prepared. 

We recently updated our floodplain information for the entire 627-square-kilometre watershed we are responsible for at Central Lake Ontario Conservation (CLOCA).  Our Information Management and GIS team then took that information and created a conceptual and interactive mapping application for property owners in the CLOCA watershed.

Clicking on the Floodplain Mapping link will take you to our Conceptual Floodplains mapping tool. Once you agree to the disclaimer, you put your  address in to the Find Address or Place box located at the top of the screen, then click the search tool. Alternatively, you can zoom in or out of the actual map, using the scroll wheel on your mouse to locate your property.  It is important to note the floodplain mapping is conceptual and intended for watershed residents to understand if they might be vulnerable to mapped areas of river-, stream- and Lake Ontario-based flooding. There are many flood-vulnerable structures located in the floodplains on properties within CLOCA’s jurisdiction, either because they pre-date floodplain management planning policies and regulations, or because they were permitted under special policy and planning provisions.

If your property is located in a mapped floodplain, we recommend you take steps to protect yourself, your family, or your business in the event of a flood or other emergency. We offer some resources at the local, provincial, and federal levels to help you prepare.