Atmosphere
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system of sea walls to protect against inundation would cost an estimated $24–
31 million (Tonkin & WBM 2005).
Figure 26: Indicates the extent of flooding for a current 1-in-100 year storm tide
events
(Source: Tonkin & WBM 2005).
Commonwealth Government Sea level rise report
In December 2009 the Commonwealth Government published the national ‘first
pass’ assessment report -
“Climate Change Risks to Australia’s Coast
”. The
western region of Adelaide, including PAE was identified as being one of the
most vulnerable areas in the nation.
“The analysis also suggests that 23 percent of residential buildings in the
City of Port Adelaide Enfield could be affected by sea-level rise by 2100.
A recent study of seawater flooding risk to Port Adelaide identified that
the estimated costs from flooding damage from the combined effects of
sea-level rise (50–88 centimetres) and local land subsidence during a 1-
in-100 year storm tide event could increase from $8–28 million for a
current day event to $180–310 million under future scenarios “(Aust.
Govt 2009).
In this assessment, the neighbouring local government areas (LGA) of Charles
Sturt and Port Adelaide Enfield collectively represent around 55 per cent of all
residential buildings at risk in South Australia (upper range estimate).
