Following the floods of 2017 and 2019, the Government of Quebec has expanded the flood plain zone on Allumette Island. In so doing, it has included the entire shoreline area with a significantly expanded setback including large areas that were not subject to flooding due to their height above the Ottawa River.
New construction and renovations will be prohibited. Inclusion of these properties in the flood zone will also make it difficult or impossible to obtain insurance which, in turn, will make it impossible to obtain a mortgage and to sell. As a result, the value of these properties will be eliminated, destroying the tax base of the region and crippling local government. This is an arbitrary action for no purpose as it affects properties outside of the longstanding flood zone which are high and dry.
Will the province reverse this poorly thought out action, or does it intend to fully compensate all property owners for the lost value of their properties?
Changes needed in flood plains
Government authorities should prohibit new dwellings, buildings, infrastructure on flood plains and low ground. Existing residents should be encouraged to leave and financial assistance should be provided to do so. Another option is to raise structures on much higher foundations (if boating to and from is acceptable).
On a larger scale and expense, dykes could be built where feasible (for example, much of Netherlands exists due to dykes). Another option is water diversion (for example, Manitoba built the Red River floodway to divert floodwater away from Winnipeg and region).