Online mapping provides information about our watershed, including Conservation Halton Parks and other properties, including the Niagara Escarpment and the Greenbelt, as well as our Approximate Regulation Limit mapping.
Over the past few years, Conservation Halton has embarked on a major review and update of our regulatory mapping (e.g., flood hazard mapping, wetland mapping, watercourse mapping, etc.). Updates to technical studies and modelling, using new tools and technologies, help us to better understand the nature and extent of existing hazards and/or wetlands. Mapping is a dynamic process. As mapping reviews and updates progress, refinements to the Approximate Regulation Limit mapping will be necessary, as additional hazard or regulated areas may be identified or removed.
Conservation Halton developed a protocol to establish at what point in the mapping update process will the draft data or mapping be considered “best available information” for understanding the extent of the hazard, assessing potential risk to life and property, identifying potential interference to a wetland, identifying areas requiring further analysis, making decisions when development is contemplated in hazardous or regulated areas and administering Ontario Regulation 162/06. The Mapping Implementation Protocol establishes the key stages in the mapping update and study process, what data will be used at each stage of the process, how the data will be presented in online mapping, when the data can be used for administering Ontario Regulation 162/06, and when public and stakeholder engagement will occur.
The Conservation Halton Board of Directors endorsed the Mapping Implementation Protocol Report for use on November 26, 2021.
The Floodplain Mapping program is responsible for updating and maintaining watershed floodplain mapping, which identifies flood risk and hazards. This information is used to develop approximate regulation limit mapping for purposes of review associated with Ontario Regulation 162/06, as well as used to support flood risk management decisions and communications
The first step to reducing the impact of flood damage within a community is to have mapping that helps us identify flood hazards, accurately. Conservation Halton is working with our partners to reduce flood risk in our communities by updating our floodplain maps, some of which are more than 20 years old. Updates to technical studies and modelling, using new tools and technologies, help us to better understand the extent of flood hazards. As mapping reviews and updates progress, refinements to Approximate Regulation Limit mapping will be necessary, as additional hazard or regulated areas may be identified and some may be removed.
How can you get involved?
Conservation Halton encourages the public to participate in flood hazard mapping studies. Public involvement provides greater certainty and transparency for the floodplain mapping program, and it benefits from receiving observations about the watershed from the people who experience these watershed conditions.
We host public engagement sessions on floodplain mapping studies to notify the public and stakeholders that a study is occurring in their area and to share information on the study process and draft mapping updates for review and input. Floodplain mapping study notifications and updates on public engagement are published in community newspapers and posted on the Conservation Halton website and social media. You can also request to be added to the email contact list for the study to receive direct notifications.
Recent Mapping Studies:
Wetlands are the most biologically diverse kind of ecosystem, as they support both aquatic and terrestrial plant and wildlife species. These ecosystems provide a range of benefits, such as flood management, water quality improvement, groundwater replenishment and climate resilience, as well as recreation and economic opportunities, such as for timber, hunting and fishing.
Conservation Halton uses wetland mapping to identify potential wetlands and to determine if a property may be regulated by Conservation Halton. Conservation Halton regulates all watercourses, valleylands, wetlands, Lake Ontario and Burlington Bay shoreline, and hazardous lands, as well as lands adjacent to these features. Up-to-date mapping supports the delivery of our regulatory and planning programs and helps ensure wetlands are protected.
A report was brought to the Conservation Halton Board of Directors on June 23, 2022. The engagement period began July 13, 2022 and closed on September 13, 2022.
The following are next steps that will be taken for this project:
- Staff is currently reviewing all comments received and is making edits to the mapping, where necessary.
- Where requested, staff is completing site visits to ground truth the mapping.
- Final draft mapping will be taken to the Board of Directors for approval in the new year.
Updates to the Regulatory Status of Lower Rambo Creek
The City of Burlington recently completed a Phase 1 Flood Hazard and Scoped Stormwater Management Assessment for downtown Burlington and the Burlington GO Major Transit Station Area (MTSA). The Phase 1 study revealed a flood hazard in the Lower Rambo watershed that is greater than previously understood. A Phase 2 study is currently underway to further refine the flood hazard mapping, but the Phase 1 study is considered the best available information for decision making when development is contemplated in hazardous areas.
Under Ontario Regulation 162/06, Conservation Halton regulates all watercourses, valleylands, wetlands, Lake Ontario and Burlington Bay shoreline, and hazardous lands, as well as lands adjacent to these features. The purpose of the regulation is to protect people and property from the risks associated with natural hazards and to prevent worsening of existing hazards or the creation of new hazards. Conservation Halton’s regulation now applies to identified flood (i.e., floodplain and spill areas) and erosion hazards, as well as a 7.5 metre regulatory allowance, in the Lower Rambo Creek watershed. Permission is required from Conservation Halton to develop in these areas.
For more information about Phase 1 or Phase 2, please contact City of Burlington staff.
|Charles Priddle, Ph.D.
Manager, Regulations Program
905.336.1158 ext. 2276
|Umar Malik, M.Eng., P.Eng.
City of Burlington
905.335.7600 ext. 7426
Conservation Halton (CH) is updating flood hazard mapping for Tuck, Shoreacres, Appleby, and Sheldon Creeks in your community.
Flood hazard mapping is an important tool that supports CH’s regulatory, planning and flood forecasting and warning programs, as well as municipal emergency management, flood mitigation, and infrastructure design. Advances in technology allow us to understand flood risks and develop better flood hazard mapping.
Flood hazards include floodplains and spills. A floodplain is an area of land that is flooded with water by a nearby creek or lake during large storms. Spills occur when flood waters leave the valley and floodplain and “spill” into surrounding lands, rejoining the watercourse at a distance downstream or moving into another watershed.
One of CH’s top priorities is to protect life and property from natural hazards and updating hazard mapping is one of the ways we do that.
In 2021, CH retained the engineering consulting firm WSP, to update the flood hazard modelling and mapping for Tuck, Shoreacres, Appleby and Sheldon Creeks which cross through parts of east Burlington and southwest Oakville (referred to as ‘East Burlington Creeks Flood Hazard Mapping Study’). Updated mapping and modelling provides CH, municipalities, the public, and stakeholders with a current understanding of the magnitude and extent of riverine flood hazards in this area. The study also provides background information and technical details about how the riverine flood hazard modelling and mapping was updated.
In Octobre 2021, CH hosted a public engagement session to provide notification of study commencement and provide an opportunity for property owners, residents, and other stakeholders to ask questions and share feedback.
Public Engagement Session #2
To learn more about the study and updated draft flood hazard mapping, you are invited to join us for a virtual public engagement session on June 6, 2023 at 7:00pm. This is an opportunity for those looking for further information to learn more and ask questions. To register for the virtual public engagement session, please click here: https://us02web.zoom.us/webinar/register/WN_sl19iHNURcerow1W3mK8PQ
If you are unable to join us, draft mapping and reports, as well as a recording of the public engagement session, will be available online for comment until July 6, 2023. CH will review all feedback and make any necessary revisions to the draft flood hazard mapping. It is anticipated that the final draft mapping and study will be presented to CH’s Board of Directors for their approval and inclusion in CH’s Approximate Regulation Limit (ARL) mapping later this year.
Should you have any questions about the study or upcoming Public Engagement Session #2, please contact us via email at firstname.lastname@example.org or call (905) 336-1158 ext. 2296.
Information will be collected in accordance with the Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments will become part of the public record.
Conservation Halton has retained consulting and engineering company, Greck and Associates, to update flood hazard mapping and modelling for the West Branch of Sixteen Mile Creek in the Town of Milton. Advances in technology allows us to better understand flood hazards and to develop more accurate floodplain mapping. One of Conservation Halton’s top priorities is to protect life and property from natural hazards and updating flood hazard mapping is one of the ways we do that. An important part of the process of updating flood hazard mapping is to inform and engage with residents and other stakeholders in the study area.
Flood hazard mapping is used by Conservation Halton and municipal partners to identify areas that may be susceptible to riverine or shoreline flooding, and to inform flood forecasting, emergency response, community planning, infrastructure upgrades and other flood prevention efforts. Flood hazards include floodplains and spills. A floodplain is an area of land that is flooded by a nearby creek or lake during large storms. Spills occur when flood waters leave the valley and floodplain and “spill” into surrounding lands, rejoining the watercourse at a distance downstream or moving into another watershed.
Conservation Halton hosted the second public engagement session for the Urban Milton Flood Hazard Mapping Study in March 2020. A summary of the study and draft mapping presented at that time can be found here: Urban Milton Flood Hazard Mapping.
Public Engagement Session 3
To learn more about the Urban Milton Flood Hazard Mapping Study and updated draft flood hazard mapping, Conservation Halton staff held a virtual public engagement session on February 22, 2023.
(You can also click here to download the presentation slides.)
The draft study report and mapping are available for review (please use the links above) and feedback is requested by March 18, 2023. After the 30-day public review period, Conservation Halton will review all feedback received and make any necessary revisions to the draft flood hazard mapping. It is anticipated that the final draft mapping and study will be presented to the Conservation Halton Board of Directors for their approval and inclusion in online Approximate Regulation Limit mapping in Spring 2023.
If you have any questions, comments or concerns, or you would like to be added to the mailing list for this project, please email email@example.com or either of the contacts below.
Manager, Policy & Special Initiatives
905.336.1158 ext. 2311 | firstname.lastname@example.org
|Amy Mayes, P.Eng.
Coordinator, Floodplain Mapping
905.336.1158 ext. 2302 | email@example.com