Dunedin assesses sea level rise and storm surge impact on critical infrastructure

The City of Dunedin is taking significant steps to address the pressing issue of environmental hazards, particularly as they relate to sea level rise and flooding. During a recent Vulnerability Assessment Public Meeting held on June 11, 2025, city officials presented crucial data and projections that highlight the increasing risks posed by climate change to the community.

One of the key topics discussed was the observed sea level rise, which has reached approximately 8.5 inches over the past 50 years at the Clearwater gauge, the closest monitoring station to Dunedin. This data, based on historical measurements rather than projections, underscores the reality of rising waters and the need for proactive planning. The city is now considering various scenarios for future sea level rise, focusing on intermediate projections that reflect a moderate level of intervention against climate change.

The meeting also addressed the anticipated increase in rainfall intensity, with projections indicating that future rainfall events will be more severe and frequent. This change is expected to significantly impact local infrastructure and emergency preparedness, as the current 100-year rainfall event could soon resemble a 50-year event by 2050.

City officials presented a comprehensive analysis of 60 flood hazard scenarios, combining factors such as tidal flooding, storm surge, and rainfall. This data will help the city identify vulnerable areas and prioritize infrastructure improvements. For instance, certain evacuation routes, like Bayshore Boulevard and Edgewater Drive, are projected to experience increased flooding, prompting discussions about necessary road elevation adjustments.

The implications of these findings are profound for community facilities, including schools and emergency shelters. For example, San Jose Elementary School was identified as a site that could face significant flooding during storm events, raising concerns about its viability as a hurricane shelter.

As Dunedin moves forward, the city plans to utilize this data to inform decisions about infrastructure investments and emergency preparedness. By understanding the risks associated with climate change, officials aim to enhance the resilience of the community and protect vital assets from future environmental hazards. The meeting served as a critical step in fostering awareness and collaboration among residents and local leaders to address these urgent challenges.