Location
SPREP LIBRARY
Publication Year:
2010
Publication Place
Nuku'alofa, Kingdom of Tonga
Physical Description:
47p. : ill. (col.) ; 29cm.
Call Number
[EL]
Collection
Material Type
Language
English
Record ID:
41416
Legacy PEIN ID:
81505
General Notes
Online only
Available online
Subject Heading(s)
EIA - Coastal erosion - Foa & Lifuka Islands - Tonga
EIA - Fine sediment dispersion - Effects on fauna & flora - Tonga
EIA - Transportation development - Foa Causeway - Tonga
EIA - Replacement structure - Development - Tonga - Oceania
Abstract
The purpose of the action is to improve transportation and reduce maintenance cost by upgrading causeway between Foa and Lifuka Islands, to become more resilient and less vulnerable to impacts of high energy waves. Built in the period 1978-1979, the raised coral structure has served the people of Foa and Lifuka well despite increasing maintenance cost. The replacement structure is similar to the existing one but with rock armoring to reduce the energy of waves impacting on the structure and culverts in the middle to encourage water flows to the western side of the Causeway. The estimated cost of construction is about TOP4.67 million. Environmental effects requiring specific analysis are limited to the followings; · possible effect of the structure on coastal erosion · dispersion of fine sediment from the construction site and its possible effects on fauna and flora in the nearby areas. Other effects considered in the analysis include social issues on fisheries and tourism, health issues on fish poisoning and on biological communities of the areas.
Location
SPREP LIBRARY
Publication Year:
2010
Publication Place
Nuku'alofa, Kingdom of Tonga
Physical Description:
47p. : ill. (col.) ; 29cm.
Call Number
[EL]
Collection
Material Type
Language
English
Record ID:
41416
Legacy PEIN ID:
81505
General Notes
Online only
Record Created: 29-Aug-2017
Record Modified: 20-Sep-2022