Flood Risk and Vulnerability Analysis Project - Atlantic Climate ...

East-2
Coastal communities line nearly all of this Sub-region, which includes the Avalon Peninsula, the
farthest eastern portion of the island. Mount Pearl is one of the largest communities in the Subregion,
which has a total population of over 71,000. Even with this many residents in these 121
communities, the Sub-region has a very low Flood Damages Priority Factor.
East-SJ
Fourteen communities lie on the peninsula that includes the City of St. John‟s (pop. 106,000)
and Conception Bay South (pop. 22,000). Statistics Canada projects a small growth in the Subregion
through 2020. Of interest is the Drainage Density Priority Factor for East-SJ is the
highest on the island. Due to its position in the Eastern Region of the island, this smallest Subregion
is projected to be highly susceptible to sea level rise and hurricanes/tropical storms.
Upon reviewing the values associated with each of the three linked factors for each Sub-region
and their relation to flood and climate vulnerabilities, mitigation strategies can be considered
that generally could be applicable to each Sub-region. These generalizations are the basis for
an initial set of strategies that the Provincial government and local communities should consider
when updating Flood Mitigation & Adaptation Programs.
6.2 Mitigation Strategies
To cope with existing and anticipated future flooding, each community should evaluate and
eventually adopt its own suite of flood mitigation strategies. To select appropriate strategies,
communities may elect to develop a comprehensive flood mitigation and adaption program that
includes watershed modeling, sea level predictions, and public involvement and education
campaign, to determine local priorities and flood mitigation goals. In smaller communities, where
flooding issues may be less complex, communities may elect to apply a less formal, yet still
systematic, planning process to establish their flood mitigation goals. Using a process most
appropriate for the community, the decision makers need to consider the three linked factors
assessed in Table 6-1 to Table 6-3 above and understand their dynamics, in order to pursue the
most appropriate set of mitigation strategies applicable to local conditions and flood
vulnerabilities.
Table 6-4 presents a list of those strategies that each community should consider to determine
the strategy‟s applicability to their flooding issues and inclusion in their Plan. These strategies
should be considered for their ability to mitigate current and adapt to projected flooding risk.
Each of these strategies has the ability to perform at least one of the following tasks.
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