Prospect South to Macarthur (ProMac)

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Under the ProMac project we are building new drinking water pipelines and infrastructure between Prospect South and Macarthur as part of Sydney Water's long-term plan to extend the city’s water capacity and supply.

ProMac will upgrade our existing water reservoirs at Liverpool, Cecil Park and Currans Hill as well as build two new reservoirs at Oran Park. This will allow for an extra 100 Megalitres of additional reservoir capacity in Western Sydney. That’s the equivalent of about 50 Olympic-sized swimming pools!

We’re also building 15 km of additional pipework, three pumping stations and upgrading our existing network to ensure growing communities in South Western Sydney have access to clean drinking water.

Sydney Water is investing in new infrastructure that will support the growing, dynamic South Western Sydney.

ProMac will help Sydney Water deliver on its vision of creating a better life with world-class water services.

Under the ProMac project we are building new drinking water pipelines and infrastructure between Prospect South and Macarthur as part of Sydney Water's long-term plan to extend the city’s water capacity and supply.

ProMac will upgrade our existing water reservoirs at Liverpool, Cecil Park and Currans Hill as well as build two new reservoirs at Oran Park. This will allow for an extra 100 Megalitres of additional reservoir capacity in Western Sydney. That’s the equivalent of about 50 Olympic-sized swimming pools!

We’re also building 15 km of additional pipework, three pumping stations and upgrading our existing network to ensure growing communities in South Western Sydney have access to clean drinking water.

Sydney Water is investing in new infrastructure that will support the growing, dynamic South Western Sydney.

ProMac will help Sydney Water deliver on its vision of creating a better life with world-class water services.

  • Cecil Hills - critical valve maintenance works in grass verge along Prince Close

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    In Cecil Hills, we installed 1.95km of new water main to ensure our existing and future customers continue to have reliable access to clean drinking water. As part of this work, we previously installed a valve in the grass verge along Prince Close to control water flow across the Sydney Water network.

    Upcoming work

    We need to return to the area to complete critical maintenance work on the valve from Monday 6 February 2023. The work will take between five to fourteen days to complete, weather permitting. Please see map for the location of work. There will be no interruptions to your water service during this work.

    This work will involve:

    • investigation
    • installation of fencing
    • excavation of the grass verge
    • minor repairs and installation of Sydney Water assets
    • restoration of the impacted areas.

    Traffic changes

    As we complete this work, there will be no traffic impacts or road closures along Prince Close. A small crew of workers will park on the grass verge off the corner of Prince Close and Sandringham Drive. Please see map overleaf for parking location.

    Pedestrians are advised to observe all project signage directions during construction.

    Location of work


  • Bossley Park - delayed work outside 181 Prairie Vale Road to recommence

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    Last year we successfully installed and connected a valve to the water main in the road outside 181 Prairie Vale Road, Bossley Park to control the pressure of the water as it enters homes.


    Upcoming work

    In January we advised that we’d return to the area to complete installation, repairs and restoration work during January and February 2023. Due to unforeseen circumstances, this work was delayed and will now be completed from Thursday 16 March 2023, weather permitting. The work will take up to four weeks to complete.

    This work will involve:

    • excavation works to remove and rotate the pit lid in the road
    • minor repairs
    • installing the electrical cabinet and connecting electrical cables
    • restoration of the impacted areas.


    Traffic changes

    As we complete this work, there will be a temporary closure of the eastbound lane along Prairie Vale Road between Crow Place and Apache Road. All traffic will share the use of the westbound lane on a stop-slow arrangement. The footpath will be closed to pedestrians and traffic controllers will ask pedestrians to stop and wait before crossing the road.

    Motorists, cyclists and pedestrians are advised to observe all project signage and traffic control directions during construction. Please see map overleaf for the location of work.


    Location of work


  • Currans Hill - construction of new reservoir to commence Monday 23 January 2023

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    We dismantled the existing reservoir between March and May 2022. We plan to start establishing site facilities to support construction of the new reservoir in the week commencing Monday 23 January 2023, weather permitting.

    This work will involve:

    • establishing a site office
    • using elevated work platforms to build the new tank in sections
    • transport of components and oversized vehicles including cranes
    • lifting sections of panels with the use of a crane
    • grinding, cutting of steel and hammering steel panels into place.

    Construction traffic and impacts

    Trucks will continue to use the route approved by Camden Council, via Turner Road into Ascot Drive and Manooka Road. Heavy vehicles will infrequently transport large deliveries of steel into the site, outside of peak hours.

    Most workers will park within the Sydney Water site, with about 10-12 people on site at a time. Some visitors to site may occasionally park in nearby streets.

    Location of Currans Hill Reservoir

  • Kemps Creek - upcoming work along Western Road

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    Sydney Water have recently repaired a defect on the pressure reduction valve installed in the verge beside Western Road. In completing the repair additional works have been identified that are required to make the verge safe.

    This work is able to be completed without lane closures however we expect this additional work to take two weeks to complete, starting Saturday 17 December 2022 and working through to Thursday 22 December, between 7 am and 6 pm.

    We will then return to complete the works starting Wednesday 4 January, working from 7 am until 6 pm, Monday to Friday. We expect all repairs to be completed by Friday 20 January 2023, weather permitting.

    Location of work

  • Cecil Hills - night work barrier removal and foot path restoration along Cowpasture Road

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    We have been working at night on Cowpasture Road to install a water main within the median strip. We have now connected the new water main to the existing network and have begun restoration of the area. To reduce traffic impact along Cowpasture Road, barrier removal and concreting of a small section of footpath will occur at night across two shifts between Tuesday 13 December and Friday 23 December. Work will occur between 8.30 pm and 5 am, Sunday to Friday. Refer to map below for location of work.

    There will be no interruptions to your water service during this work. Traffic Control will be in place to assist pedestrians around the work zone.

    Thank you for your support and cooperation during this essential work.

    Location of work

  • Currans Hill Reservoir inspiring young Picassos and the next generation of construction workers

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    Last week representatives from the Prospect South to Macarthur (ProMac) Program visited Manooka Valley Preschool in Currans Hill for an arts and crafts morning ahead of the start of Stage 2 of the Currans Hill Reservoir Project.

    Sydney Water Delivery Partner, ACCIONA, and Principal Contractor for the Currans Hill Reservoir build, Brockman Engineering, joined 20 pre-schoolers in decorating hard hats using coloured markers. The pre-schoolers gifted their Picasso masterpieces to the Brockman Team ahead of them mobilising onsite to build a new reservoir for the community.

    The morning began with a short talk from the Delivery Partner, followed by a video showing the original reservoir being demolished. The team talked about the importance of safety equipment and where drinking water comes from. Responses from the kids included “safety!”, “helmet!”, “hat!”, “the ocean!” “drink bottles!” and “pipes!”. When asked what they wanted to be when they grew up, responses included Spiderman, doctor and guitar teacher. The highlight for the ProMac team was hearing one of the pre-schoolers saying that he would “never forget this!”.

    40 hi-vis vests were donated for the children to take home as a show and tell gift for their families. By the end of the activities, the children looked as though they were ready to step onto a real construction site! Several other engagement activities are planned with the daycare once construction starts.

    The new reservoir will stand 20.4 metres high and will hold 6 million litres of water, equivalent to 83 standard home swimming pools, or 109, 000 seven-minute showers. The new reservoir is expected to be operational by late 2023.

    Demolition video: Videos | Prospect South to Macarthur (ProMac) | Sydney Water Talk


  • Milstone Alert: 18km of pipeline construction complete

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    supporting image

    Sydney Water has completed 18 kilometres pipeline in five sections between Prospect South and Macarthur as part of its investment in new infrastructure that will support growth areas in Western and South Western Sydney.

    The supply area for this pipeline includes Liverpool LGA, the South West Growth Area and the Western Sydney Aerotropolis including the suburbs Cecil Hills, Cecil Park and Kemps Creek.

    The last connection was made at a ceremonial valve turn in the Australian Botanic Gardens at Mt Annan on Tuesday 6th September.

    The 18km pipeline installation has been made possible in collaboration with Delivery Partner ACCIONA and principal contractors Killard Infrastructure, Diona, Athassel Civil,Ferrycarrig Construction, Vaughn Civil and Comdain Infrastructure.

  • Cecil Hills - work hours update within Liverpool Reservoir site and Cowpasture Road

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    Extended Saturday hours

    Due to long periods of wet weather, we will need to continue working extended hours on Saturdays within the Liverpool Reservoir site to meet critical operational deadlines. Extended Saturday hours will be from 8 am to 5 pm, and this will continue until project completion in March 2023.

    Night work on Cowpasture Road

    We have been working at night on Cowpasture Road to install a water main within the median strip. We are now ready to connect the new water main to the existing network. Night work will continue until Monday 31 October, from 8.30 pm and 5 am. We will work Sunday to Friday with an additional respite night provided on a Wednesday.

    There will be no interruptions to your water service during this work.

    Once all work is complete, we will restore the impacted area and remove all materials within the median of Cowpasture Road.


    Location of work

  • Mount Annan - works recommencing at Narellan South Reservoir site

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    We had originally planned to start work building the re-chlorination plant in April, however, due to wet weather and other unforeseen delays, work will now commence Tuesday 4 October 2022 and will take around 10 months to complete, weather permitting.

    The work involves:

    • investigating and surveying the area
    • setting up site facilities
    • clearing trees and removing vegetation within 20 metres of our work area
    • using plant and equipment to level the site and remove spoil
    • constructing a larger access road and an unloading bay for trucks
    • delivery and cranage of any oversized pre-constructed building
    • restoring the impacted area.

    Construction traffic and impacts

    There will be an increase in construction traffic around Mount Annan during our work. Residents can expect to see truck movements on Mount Annan Drive, Indigofera Circuit, Commelina Drive, Swansona Avenue and Moyengully Avenue.

    Our work hours

    • Monday to Friday 7 am to 6 pm
    • Saturdays 8 am to 1 pm.

    No work is planned on Sundays or public holidays. If we need to work outside our standard hours from time to time, we will update residents before this occurs.

    Location of work

  • Bossley Park - Quarry Road works

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    We will be connecting cabling and installing an electrical cabinet on the concrete foundation in the nature strip in front of 2 Quarry Road, Bossley Park.

    Work will begin on Monday 5 September 2022 and should take up to one week to complete, weather permitting.

    This work will involve:

    • trenching in the nature strip outside number 2, 4 and 6 Quarry Road
    • installing instruments in the laneway at the rear of 65 Mimosa Road shops
    • installing the electrical cabinet and connecting the cables
    • restoring impacted areas.

    We may need to return to the laneway behind 65 Mimosa Road to carry out activities over 1-2 days during this week.

    Traffic changes

    During this work, there will be changed pedestrian and traffic conditions. Traffic controllers will be in place to safely manage vehicle and pedestrian movements around the work area to keep you safe.

    Our work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday.
Page last updated: 19 Dec 2023, 02:22 PM