Coastal Defense & Utility Corridor
Modular Mangrove Defense
The Living Seawall is a modular, low-tech coastal defense system that restores mangrove ecosystems while supporting critical water infrastructure. Designed for rapid deployment in Tuvalu’s erosion-prone zones, the system uses interlocked hexagonal planters stabilized by sandbags and integrates two utility lines: one for desalinated water and one for rain-fed community tap distribution.
Coastal Defense Zone
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Interlocking hex planters with pre-grown mangrove seedlings
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Bio-buffering wave energy and capturing sediment
Utility Corridor
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Twin 4" PVC water lines embedded in sandbag base
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One line carries water from Vai Tapu (desalinated)
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One line distributes rainwater from home tanks to shoreline tap points
Civic Engagement Zone
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Youth groups maintain berms, planters, and taps
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Ritual planting, stewardship roles, and Guardian-assisted logging
