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The Sugarloaf pipeline
covers 70 kilometres and will deliver water to Melbourne
from the Goulburn river. Its 5,500 lengths of pipe
follow a tortuous path to get to its destination.
There are 17 creek and river crossings and this one is
at Yea. The river had to be bypassed while plastic
bladders were installed across the river to act as
temporary dam walls. Each of these contained
approximately 180,000 litres of water. The flow had to
be neutralized while the bladders were put in place.
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We installed
3
submersible
pumps, 2
flood pumps
and 2 self
priming
pumps to
cope with
flows in
excess of
1000 litres
per second.
The bypass
pumping had
to continue
uninterrupted for 10 days
while the
trench was
prepared and
pipes laid. |
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Most of the machinery was containerised
which offers great advantage in terms of quicker set up
times, better security, ease of maintenance at night or
in inclement weather. A pair of generator sets,
variable speed control equipment and bulk fuel storage
tanks made up the complement of equipment on site.
Discharge piping was a multiple run of 12" poly pipe
combining in a manifold feeding a 20" poly pipe to the
downstream discharge point.
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The
river bed was
reinstated and
bladders removed to
allow the
flow of the river to
continue as normal. |
