![]() Select the thumbnail below to go to the search tool now. ![]() TRCA’s Regulated Area Search Tool can help you find out if your property is located within our regulated area. To learn more about the rules and regulations regarding development within TRCA’s regulation areas - particularly within a flood regulated area - please visit our Planning and Permits section. You may still be in a TRCA regulated area -even if Watercourses and the associated regulated flood plain are just one of the natural features and hazards that are components of TRCA’s regulation limit. This ensures that flood plan maps and associated hydrology and hydraulic modelling incorporate latest land use and land cover information, as well as technological advancements in modelling software and techniques so that the resulting flood plain maps remain current and state of the art. Within TRCA’s jurisdiction it is standard practice to complete comprehensive flood plain mapping updates on a 10 year cycle. About Flood Plain Mappingįlood plain mapping studies are technical assessments that use local information from each watershed in order to determine the extent of the flood plain.įlood plain mapping studies are prepared and approved for TRCA by qualified engineers, using standards and criteria established by the Ontario Ministry of Northern Development, Mines, Natural Resources and Forestry.įlood plain mapping studies use topographical information, surveys of infrastructure (such as the size of bridges and culverts), land use and land cover information, weather, and stream flow data to create detailed hydraulic and hydrologic models of each watershed. Protect people, property, and the resilience of our urban areasįlood plain management helps TRCA guide sensitive land use away from high-risk areas and identify ways to mitigate flood risk in areas where development has already happened.Identify ways to mitigate flood risk where historical development has already occurred.Guide sensitive land use away from high-risk areas.Contact: Infrastructure Planning and Permits.Contact: Development Planning and Permits.Coordination with Other Approval Agencies.Procedural Manual & Technical Guidelines.Pre-consultation and Complete Application Requirements.Planning and Permits Information: Checklist/Quick Links.image/svg+xml parks-rec parks-rec Places to Visit & Things to Do.
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