Nature‑based coastal project ends flooding in Pamarawan
Residents of Pamarawan no longer face floodwaters after a nature‑based shoreline project is completed. The intervention replaces the ineffective 3‑4 meter concrete breakwater with interconnected bamboo cribs, oyster‑shell nets and coconut‑husk barriers that span 14 hectares offshore. The design traps sediment to raise the seabed, allowing future mangrove planting, while discarded oyster shells aim to rebuild reefs and further protect the coast.
Key facts
- Bamboo cribs cover 14 hectares of offshore area.
- Concrete breakwater measured 3‑4 meters high but failed to stop floods.
- Materials used include locally sourced bamboo, oyster shells and coconut husks.
- Sediment capture by bamboo structures is expected to elevate the seabed for mangrove planting.
- Oyster shells in coconut‑husk nets are intended to restore oyster reefs.
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Why it matters
The project shows how low‑tech nature solutions can replace failing concrete defenses.
What changed
First published from Mongabay