Dean’s Wake: Q3 2007 and the Storm That Tested Jamaica’s Over-Developed Coast

Briefing

• Hurricane Dean made Category 4 landfall on Jamaica’s south coast on August 19, 2007.
• Storm surge and wave action caused significant damage along both north and south coasts.
• Damage patterns confirmed coastal geologists’ warnings about development-increased vulnerability.
• ODPEM coordinated post-storm response with coastal damage assessments commissioned by NEPA.
• Tourism sector reported major infrastructure damage at several north coast resort properties.

Hurricane Dean’s August 2007 landfall was the event that Jamaica’s coastal scientists and environmental advocates had been warning about for years. The storm itself — a large, intense, well-organised Category 4 system — was not unusual in the history of Caribbean hurricanes. What made Dean a revealing test of Jamaica’s coastal condition was the landscape it hit: a coastline that had been substantially transformed by resort development, with beaches narrowed by seawall construction, natural vegetation cleared, dune systems flattened, and the natural coastal buffers that had historically moderated storm impacts comprehensively reduced on the most developed stretches.

The damage pattern that emerged from the post-storm assessments commissioned by the National Environment and Planning Agency confirmed the vulnerability hypothesis. The sections of coastline that sustained the most severe damage were, consistently, the sections where development had most thoroughly altered the natural coastal condition. Properties that had been built close to the shoreline, on flattened beach profiles that had removed the natural elevation gradient providing storm surge resistance, experienced flooding and structural damage at levels that adjacent undeveloped or less intensively developed shoreline sections did not. The comparison was documented in the NEPA assessment with sufficient specificity to be legible to anyone who reviewed the report.

South Coast Fishing Communities

The south coast fishing communities in the storm’s direct landfall zone bore some of the most severe impacts. Communities in St Elizabeth and Westmoreland, where the combination of the storm’s direct wind and surge impacts had been most intense, suffered damage to fishing vessels, gear, boat storage facilities, and coastal infrastructure that represented a significant proportion of the community economic assets. The Office of Disaster Preparedness and Emergency Management coordinated the immediate relief response, but the medium-term recovery of livelihoods — replacing boats and gear, rebuilding shore facilities — was a slower process that the fishing communities had to navigate largely on their own.

The Reconstruction Choices

The choices made in the post-Dean reconstruction period were consequential for the coast’s long-term vulnerability. Resort properties that had sustained storm damage faced the decision of whether to rebuild in ways that would reduce future exposure — increasing setbacks, restoring beach width, removing problematic seawall sections — or to rebuild in the same configuration, replacing like with like. The pressure from investors and insurers was for the latter: rebuilding quickly, to the same specifications, to restore revenue as soon as possible. The opportunity to use reconstruction as a resilience investment was largely missed, as it typically is in the immediate aftermath of a major event.

Related: Property Market Analysis | NEPA Jamaica | ODPEM