Conservation Authorities are responsible for floodplain management. Identifying lands that are vulnerable to flooding is an important responsibility for Ontario’s Conservation Authorities. Accurate engineered flood plain mapping is the foundation of effective flood plain management. In eastern Ontario, the 1:100 year flood plain is the regulatory standard calculated as having a 1% chance of occurring in any given year. Conservation Authorities use the mapping in the administration of regulations made under the Conservation Authorities Act.
These flood plain management responsibilities include:
- Identifying lands subject to flood hazards
- Supporting Regulations under Section 28 of the Conservation Authorities Act
- Supporting land use designations in planning documents in accordance with the Planning Act and its Provincial Policy Statement
A flood plain mapping project of Mississippi Lake and the Mississippi River from the Highway 7 bridge to the Carleton Place Dam was initiated in 2013. Mississippi Lake mapping was first completed in 1978 and the prepared mapping represents an update to include additional stream flow and lake level data. This project has been initiated in partnership with the Towns of Carleton Place and Mississippi Mills and the Townships of Beckwith and Drummond/North Elmsley.
View the Final Flood Plain Maps
For more information regarding floodplain maps or studies, contact John Price at 613.253.0006 ext. 258