Monitoring & Reporting (91)
Children categories
Flood Risk/Hazard Mapping Reports (61)
Learn More:
- Contact Tyler Bauman, Water Resources Engineer (Flood Management)
In cooperation with local municipalities and the province, the RVCA identifies, studies and maps natural hazard areas along local rivers, lakes, streams and wetlands. Natural hazard areas include floodplains, unstable slopes. Natural features such as wetlands are also mapped. In the past, these maps were called flood risk maps.
If not understood or dealt with effectively, these hazards can pose risks and problems to society, especially when considering development activities.
Hazard mapping is used by watershed municipalities when updating Official Plan and Zoning Schedules and in the review of development applications under the Planning Act. The RVCA uses the mapping for the administration and enforcement of regulations made under the Conservation Authorities Act (Section 28).
Learn More:
- Current Water Conditions Statements (flood or drought)
- Contact Brian Stratton, Manager Engineering Services
Streamflow and water level data are used to monitor flood and drought events. They are also used to monitor water supply for lake operation and navigation. This information is used to determine flood risk, support land use planning, assess fish habitat and for water quality analyses of contaminant loading.
DISCLAIMER: Users of the RVCA flow data and water level data are cautioned to consider the unverified nature of the information before using it for decisions that concern personal or public safety or the conduct of business. The Rideau Valley Conservation Authority assumes no responsibility for the correctness of the information contained in this website nor liability to any user of such information, regardless of the purpose. River Levels and flows can change rapidly.
Learn More:
- Current Water Conditions Statements (flood or drought)
- Contact Brian Stratton, Manager Engineering Services
Within the RVCA’s regulated floodplain, staff have identified a number of Flood Vulnerable Areas throughout the watershed where flood events may have an impact on nearby properties. (See watershed map and table).
A series of new Neighbourhood Flood Maps for 20 vulnerable City of Ottawa communities along the Ottawa and Rideau Rivers shows the potential extent of flooding for 1:2, 1:5, 1:10, 1:20, 1:50 and 1:100 year return period floods for these neighbourhoods.
NOTE: These maps are for informational purposes only and are not as exact as those used for regulatory purposes.
Please note:
- The 1:2 year return period flood event has a 50% chance of occurring in any year.
- The 1:5 year return period flood event has a 20% chance of occurring in any year.
- The 1:10 year return period flood event has a 10% chance of occurring in any year.
- The 1:20 year return period flood event has a 5% chance of occurring in any year.
- The 1:50 year return period flood event has a 2% chance of occurring in any year.
- The 1:100 year return period flood event has a 1% chance of occurring in any year.
All Rideau River Additional Flood Maps are based on recorded flow at the Rideau at Ottawa [02LA004] gauge, located at Carleton University. The two Grandview Ottawa River Additional Flood Maps are based on recorded flow at the Ottawa River at Britannia [02KF005] gauge. The Boise Village/Morin Road Additional Flood Map is based on recorded water levels at the RVCA Cumberland gauge.
DISCLAIMER: Users of the RVCA flow data and water level data are cautioned to consider the unverified nature of the information before using it for decisions that concern personal or public safety or the conduct of business. The Rideau Valley Conservation Authority assumes no responsibility for the correctness of the information contained in this website nor liability to any user of such information, regardless of the purpose. River levels and flows can change rapidly.
Access water chemistry results by searching your area of interest or zooming into an area and selecting a sampling site.
INSTRUCTIONS
1) A user-defined time frame can be selected via the "FROM DATE" and "TO DATE" tools above (Date Format: YYYY-M-D). An active 90-day window is loaded by default.
2) Chart and data export functionality is available via the [ ≡ ] icon at the top right of the chart area.
3) Series may be toggled on/off by clicking on the associated legend elements at the bottom of the chart.
4) Data values can be reviewed by hovering over the desired series.
DATA STATUS - PROVISIONAL
The RVCA cannot guarantee the accuracy of the provided data. Data accuracy can be affected by a number of factors including, but not limited to: Ice and/or sediment accumulation, backwater effects and equipment malfunction/maintenance.
Users of the RVCA's real-time data are cautioned to consider the unverified nature of the information before using it for decision that concern personal or public safety or the conduct of business.
STATION METADATA
More...
INSTRUCTIONS
1) A user-defined time frame can be selected via the "FROM DATE" and "TO DATE" tools above (Date Format: YYYY-M-D). An active 90-day window is loaded by default.
2) Chart and data export functionality is available via the [ ≡ ] icon at the top right of the chart area.
3) Series may be toggled on/off by clicking on the associated legend elements at the bottom of the chart.
4) Data values can be reviewed by hovering over the desired series.
DATA STATUS - PROVISIONAL
The RVCA cannot guarantee the accuracy of the provided data. Data accuracy can be affected by a number of factors including, but not limited to: Ice and/or sediment accumulation, backwater effects and equipment malfunction/maintenance.
Users of the RVCA's real-time data are cautioned to consider the unverified nature of the information before using it for decision that concern personal or public safety or the conduct of business.
STATION METADATA
INSTRUCTIONS
1) A user-defined time frame can be selected via the "FROM DATE" and "TO DATE" tools above (Date Format: YYYY-M-D). An active 90-day window is loaded by default.
2) Chart and data export functionality is available via the [ ≡ ] icon at the top right of the chart area.
3) Series may be toggled on/off by clicking on the associated legend elements at the bottom of the chart.
4) Data values can be reviewed by hovering over the desired series.
DATA STATUS - PROVISIONAL
The RVCA cannot guarantee the accuracy of the provided data. Data accuracy can be affected by a number of factors including, but not limited to: Ice and/or sediment accumulation, backwater effects and equipment malfunction/maintenance.
Users of the RVCA's real-time data are cautioned to consider the unverified nature of the information before using it for decision that concern personal or public safety or the conduct of business.
STATION METADATA
INSTRUCTIONS
1) A user-defined time frame can be selected via the "FROM DATE" and "TO DATE" tools above (Date Format: YYYY-M-D). An active 90-day window is loaded by default.
2) Chart and data export functionality is available via the [ ≡ ] icon at the top right of the chart area.
3) Series may be toggled on/off by clicking on the associated legend elements at the bottom of the chart.
4) Data values can be reviewed by hovering over the desired series.
DATA STATUS - PROVISIONAL
The RVCA cannot guarantee the accuracy of the provided data. Data accuracy can be affected by a number of factors including, but not limited to: Ice and/or sediment accumulation, backwater effects and equipment malfunction/maintenance. Users of the RVCA's real-time data are cautioned to consider the unverified nature of the information before using it for decision that concern personal or public safety or the conduct of business.
STATION METADATA
INSTRUCTIONS
1) A user-defined time frame can be selected via the "FROM DATE" and "TO DATE" tools above (Date Format: YYYY-M-D). An active 90-day window is loaded by default.
2) Chart and data export functionality is available via the [ ≡ ] icon at the top right of the chart area.
3) Series may be toggled on/off by clicking on the associated legend elements at the bottom of the chart.
4) Data values can be reviewed by hovering over the desired series.
DATA STATUS - PROVISIONAL
The RVCA cannot guarantee the accuracy of the provided data. Data accuracy can be affected by a number of factors including, but not limited to: Ice and/or sediment accumulation, backwater effects and equipment malfunction/maintenance. Users of the RVCA's real-time data are cautioned to consider the unverified nature of the information before using it for decision that concern personal or public safety or the conduct of business.
STATION METADATA
