This map locates the high current and low current areas of the Ottawa and Gatineau rivers. The low-current zone corresponds to the part of the floodplain, beyond the limit of the main-current zone, that can be flooded during a 100-year recurrent flood. The high-current zone that corresponds to the part of a floodplain that can be flooded during a 20-year recurrent flood. A floodplain corresponds to the space occupied by a lake or a watercourse during periods of flood within the meaning of the Coastal Shoreline and Floodplain Protection Policy. Appendix E - zoning by-law 502-2005 - amendment 502-237-2017, in force on July 24, 2017 Sources: Appendix E - zoning by-law 502-2005 - amendment 502-237-2017, in force on July 24, 2017 City of Gatineau, Department of Urban Planning and Sustainable Development, May 2014, Mapping of the large and weak current areas of the Ottawa and Gatineau rivers from two sources: JFSA, April 2014, Determination and mapping of open water flood ratings on the Gatineau River. 995-14 Centre d'expertise du Québec, March 2008, Determination of flood ratings corresponding to the high-current zone and to the low-current zone, Ottawa River, CEHQ 07-114. The low-current zone corresponds to the part of the floodplain, beyond the limit of the main-current zone, that can be flooded during a 100-year recurrent flood. The high-current zone that corresponds to the part of a floodplain that can be flooded during a 20-year recurrent flood. A floodplain corresponds to the space occupied by a lake or a watercourse during periods of flood within the meaning of the Coastal Shoreline and Floodplain Protection Policy. Appendix E - zoning by-law 502-2005 - amendment 502-237-2017, effective July 24, 2017**This third party metadata element was translated using an automated translation tool (Amazon Translate).**