Home' Infrastructure Australia : Infrastructure Australia 2010 Contents 32 INFRASTRUCTURE AUSTRALIA APRIL 2010
Plant site a hive of activity
The 31ha site of the Adelaide de-
salination plant at Port Stanvac,
in Adelaide s southern suburbs,
is a hive of activity with con-
struction well under way. Once completed,
the project will deliver up to 100GL/a of
SA Water is the lead agency responsible
for delivering the $1.8 billion project.
Multinational consortium AdelaideAqua
comprising McConnell Dowell, Abigroup
Contractors, United Utilities Australia
and Acciona Agua is constructing the
desalination plant. Together they will
design, build, operate and maintain the
plant for 20 years.
Giving a project update, an SA Water
spokesperson said: "Construction crews
have completed excavating the intake,
outfall and working sha s. e excava-
tion of the cavern which will house the
underground intake pumping station is
"Also, the intake and outfall tunnels are
being driven by two 3.4m diameter tunnel
boring machines that are on schedule to
complete the tunnels midyear. Construc-
tion work is progressing well, with rst
water on track to be delivered by the end
of December 2010. e plant will be fully
operational by the end of December 2012."
Work is also "well advanced" on the
rst 50GL reverse osmosis (RO) building,
with the structural steel currently being
erected in preparation for the installation
of the roof. e mechanical installation of
the RO racks and pressure vessels which
are housed in the rst RO building will be
completed in the coming months. Electri-
cal installation services for process works
are being completed by O Donnell Gri n.
"Crews are continuing work on the
installation of the mechanical and electri-
cal components in the high voltage inter-
face switch room along with the con-
struction of a treated water storage tank
-- both of which are critical to continue
to achieve the project program," the SA
Water spokesperson said.
A joint venture between McConnell
Dowell Constructors and Built Environs
was appointed to design and build the
transfer pipeline system from Port Stanvac
to the Happy Valley water treatment plant.
Construction work on the 11.5km pipeline
has been completed and commissioning
will begin next month.
A panoramic view of the Adelaide desalination plant construction site at Port Stanvac, South Australia.
Project ramps up on many fronts
Construction on the second
major desalination plant in
Western Australia is proceed-
ing on multiple fronts and
continues to be on track to be completed
at the end of 2011.
e desalination plant is being built in
the state s southwest, near the coast be-
tween Binningup and Myalup. Water from
the plant will be fed into the water grid
near Harvey, approximately 30km inland.
e design, construction and opera-
tion of the new plant is the responsibil-
ity of the Southern SeaWater Alliance
(SSWA). is alliance comprises Spanish
companies Tecnicas Reunidas and Valo-
riza Agua, Australian construction com-
pany AJ Lucas, engineering consultancy
WorleyParsons and Water Corporation
At the heart of the $955 million project
is a 50GL/a reverse osmosis desalination
plant and associated infrastructure. e
plant will have the capacity to expand to
100GL/a at a later date if required.
Onsite activities began last July with
major earthworks and other site prepa-
ration activities. ese works included
the levelling of the site, construction of
an 8m high bund to act as a visual and
noise screen, erection of facilities such as
a concrete batching plant, establishment
of the footings for the major buildings,
and construction of the intake and outlet
chambers at the intake pump station.
Over the last couple of months, work
has focused on completing the chamber
that will be used to launch a tunnel bor-
ing machine (TBM). e TBM recently
arrived from Singapore and is scheduled
to be launched at the end of the month.
is month it is also expected that a
10m high, 400t seawater intake tower will
be oated from Henderson, just south
of Perth, to Binningup. Simultaneously,
construction has begun on the reverse
osmosis and micro ltration buildings, and
pipe laying is now under way.
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