Tonga

Coastal erosion at Manuka, Tongatapu
Coastal erosion at Manuka, Tongatapu
Training and capacity building event,Tonga
Training and capacity building event,Tonga
Community engagement prorammes on Uiha Island, Haapai
Community engagement prorammes on Uiha Island, Haapai
Land subsidence, beach loss and sea level rise, Haapai,
Land subsidence, beach loss and sea level rise, Haapai,
Failing rubble revetment, Navatoka
Failing rubble revetment, Navatoka

Tonga

Enhancing resilience of coastal communities of Tonga to climate change and disaster risks.

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Consultancy to conduct coastal feasibility studies, coastal design and costing for six communities on the Eastern Site of Tongatapu.

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Consultancy to conduct coastal feasibility studies, coastal design and costing for six communities on the Western Site of Tongatapu (Hihifo)

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Tongatapu Integrated Coastal Management Diagnostic Study.

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Vava’u Integrated Coastal Management Diagnostic Study.

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Showcase Project - Tongatapu

Coastal feasibility studies, coastal design and costing for six communities on the Eastern side of Tongatapu

What we helped with

Community engagement prorammes on Uiha Island, Haapai

Coastal erosion experienced at Makuanga, east Tongatapu

Map of study location - east Tongatapu

Project study area on Tongatapu island, Tonga

Lagoon environment

Lagoon environment fronting Navutoka, east Tongatapu

Failing rubble revetment, Navatoka

Nuku’alofa Lagoon –past attempts to prevent erosion repeatedly fail due to poor design

Why Our Services were required

  • Six coastal communities (Nukuleka, Makaunga, Talafo’ou, Navutoka, Manuka and Kolonga), on Tongatapu (the main island of Tonga) are highly susceptible to the impacts of climate change, disaster risks (e.g.: tsunami) and sea level rise, storm surge and coastal erosion.
  • The communities are highly vulnerable due to their low topographic elevation (+2m above mean sea level).
  • Poor regulation to enforce inappropriate land use planning in high risk areas
  • Limited capacity and training on “climate resilient” coastal engineering construction  within Tonga.

Solutions

  • Comprehensive field assessment of the coastal risks including beach profiles, sediment analysis and snorkel surveys of nearshore reef.
  • Site specific recommendations for engineering interventions to protect local sediment budgets.

Innovative designs to help re-instate natural ecosystem and beach dynamics.

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It's about people...not just sea water!