Coastal hazard management is a significant issue within the Bay
of Plenty. Coastal hazards include, tsunami
(2.9MB, pdf), storm erosion and storm flooding (also see NIWA's
Added to these are the effects of climate change and especially
the prospect of a projected rise in sea level of around half a
metre in the next 100 years (Intergovernmental Panel on Climate
View our summary brochure and report on the
biotic effects of climate change in the Bay of Plenty.
Bay of Plenty Regional Council has identified Areas Sensitive to
Coastal Hazards (ASCH) along the open coast that scientists believe
could be subject to coastal hazards within the next 100 years. In
the Bay of Plenty it is estimated that at least 3000 properties are
within this area.
The key policy objective in the Bay of Plenty Regional
Coastal Environment Plan is that there be:
"no increase in the total physical risk from coastal
The zone provides a trigger for district councils to consider
coastal hazards when dealing with applications for activities near
For any new development proposed a detailed hazard assessment is
required to ensure decision makers are well informed. Where
there is already an urban area within the identified hazard area,
then district councils are required to carry out a more detailed
hazard assessment and include this in their district plans along
with rules to ensure appropriate management of development within
the area at risk.
In addition to the above mentioned hazard management, Section 35
of the Resource Management Act requires the regional council to
monitor the effectiveness of policies, rules and methods contained
in regional plans and keep records of natural hazards to the extent
appropriate for the effective discharge of its functions.
To this end, a project to develop indicators to measure the
coastal hazard risk was initiated in 2003 to provide information in
order to meet Bay of Plenty Regional Council's policy and
legislative monitoring requirements.
There are four coastal district councils in the Bay of