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The project team has been careful to ensure that access along the
river for recreational boating activities is maintained at all times
during the construction period.
Carlton Main Sewer Improvement Project
Melbourne Water and John Holland are renewing a 1.35-kilometre
section of the 114-year-old Carlton main sewer in Carlton North.
The project also involves building a new 510-metre section of
sewer line to cater for future population growth, and to ease
pressure on the existing system.
The Carlton Main Sewer Improvement Project presents a range of
difficult engineering challenges – the shaft needs to be drilled
25 metres down through basalt rock before any tunnelling can
start, and all works are being conducted in a highly urbanised area.
The project team has engaged specialised techniques and
equipment to minimise impacts on local residents as much as
possible, while still delivering the essential project.
South Yarra to St Kilda Water Main Replacement
The South Yarra to St Kilda water main (M39) was originally
constructed in the 1890s, making it one of Melbourne’s oldest
It transfers water to around 97,000 homes and businesses in the inner
south-eastern suburbs, from South Yarra to St Kilda and Port Melbourne.
Today, the existing water main is at risk of failing, and must be
replaced to ensure that Melbourne’s water supply continues to run
efficiently while serving our current and future demand requirements.
The joint venture between Melbourne Water and construction
partners Thiess and Black & Veatch will replace three kilometres of
water supply main using mostly open trenching. The pipes will be
740-millimetre and 600-millimetre diameter, in six- and 12-metre
lengths, with one length of pipe laid per day.
The project is expected to be completed in late 2015, and will
navigate through major residential roads and a large park.
Water for a Growing West
The three major renewal projects in Melbourne’s CBD fringe, inner
north and inner south-east are being complemented by a key
growth project for Melbourne’s expanding outer western suburbs.
Melbourne Water is constructing a new main that will supply water
to the Cowies Hill reservoir in Tarneit from the St Albans Reservoir.
Called Water for a Growing West, the new 17-kilometre water main
will service an additional 40,000 homes. It is designed to transfer
a maximum of 200 megalitres of water per day – the equivalent of
80 Olympic-sized swimming pools.
To reduce disruption to the community, the water main will be
located within an existing powerline easement, and current and
future road reserves. Construction will include the installation of
pipework and valves, and connections to the existing main at each
end of the project.
While some vegetation removal has been necessary for the
project to proceed, logs that had been removed were provided to
a local primary school to be used as seats for the students in their
Construction commenced in late 2014, and is expected to be
completed by November 2015.
Morse says the projects all contributed to building on the legacy
of strong water and sewer networks to support the rapidly growing
city and surrounds.
‘We recognise the key role we play in Melbourne’s livability, and it’s our
responsibility to ensure we’re not only providing safe and reliable public
health services now, but are [also] always preparing for the future.’
Melbourne Water is responsible for an extensive
water supply that includes:
10 storage reservoirs
14 water treatment plants
1062 kilometres of pipes.
Melbourne Water supplies the water retailer companies with
400,000 million litres of high-quality drinking water each year –
enough to fill the Melbourne Cricket Ground (MCG) 236 times.
Melbourne Water removes and treats most of Melbourne’s
sewage. It manages:
more than 400 kilometres of sewers
nine pumping stations
two sewage treatment plants.
Each year, Melbourne Water treats more than 320,000 million
litres of sewage, including trade waste.
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