Environmental Water SOQ

CITY OF OLDSMAR CLIMATE RESILIENCY PLAN Oldsmar, Florida

WSP worked with the City of Oldsmar to develop a Climate Resiliency Plan (CRP) for city-owned and

managed assets. To develop the CRP, WSP conducted a risk-based vulnerability assessment for city assets using future probabilistic storm surge, sea level rise, and pre cipitation data. This work included coordination with the University of Florida on development of a probabilistic flood model to represent future storm surge risks to the end of the century. Future precipitation values were generated by WSP’s climate team and included as inputs, with sea level rise im pacted tailwater conditions, into the stormwater model to gen erate scenarios for localized flooding from precipitation flood ing for various future precipitation events for a range of return periods. The combined technical analysis was used to generate probabilistic stressor values for use in the project risk assessments to identify impacts to 2100. WSP worked closely with city staff to create an inventory of risks to city owned assets associated with various water elevations. Measures were generated that identified the level of impact to asset use from various flood levels (minor to significant), and these measures were com bined with flood probabilities to generate a series of time-period recom mendations. This assessment created a simple three-dimensional analysis that looked at depth of flooding (not just presence) to determine impacts to the service of assets and city stakeholders. The resulting action-oriented plan establishes an investment roadmap for Oldsmar to follow to reduce risk to high-risk assets and change practices to incorporate resilience into City planning processes and investments. The project team also assessed the city’s Comprehensive Plan and National Flood Insurance Program (NFIP) Community Rating System (CRS) program and made recommenda tions for policy changes that could benefit the city during the transition to FEMA’s Risk Rating 2.0 program.

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