The dykes were constructed in the 1980s to provide flood protection for the Village East community in Pickering and the Notion Road/Pickering Village community in Ajax, which are both designated Special Policy Areas (SPA), said a TRCA statement.
Recent studies completed by TRCA have identified various deficiencies in their construction which prevent them from meeting current engineering design standards and factors of safety (FOS). As such there is a risk of dyke failure under an extreme storm event, it said.
It is desired to undertake rehabilitation of the dykes to meet current engineering standards and FOS, while maintaining or improving the level of flood protection provided to the surrounding communities (at minimum maintain the level associated with the existing dyke heights), said the statement.
The Environmental Study Report (ESR) has been filed for review from August 27, 2020 to October 26, 2020. Learn more.