O’Hara Brothers have successfully completed major projects and continue to assist many civil engineering companies to complete some of Australia’s largest projects:
The University of Sydney (USYD) collaborated with Laing O’Rourke to carry out redevelopment works to recognise the original cultural history of this site while providing a contemporary teaching and learning facility for the future generation.
The scope of works included FRP of headwalls and slabs, detailed Earthworks and Stormwater Installation Works, including bulk excavation of box culverts, trenches, pits; large scale asbestos removal, detailed waste classification, installation of drainage system with storm filters and several crane pads. Although it was a large scope in a small area with various disciplines involved with multiple redesigns, O’Hara Brothers completed the work on time, on budget with zero LTI’s or incidents while maintaining quality and stakeholder relationships.
Project: Nelson Carpark – Concrete Sparing Repairs
Client: Fairfield City Council
Timeline: June 2017 – July 2015
The concrete spalling repair project at the Nelson St Carpark in Fairfield proved to be an interesting job, requiring extreme attention to detail to ensure improvements to the carpark both structurally and aesthetically.
O’Hara Brothers Services were contracted to break out affected concrete and perform patch repairs using a range of BluCem products fit for use in these circumstances. The rehabilitation of reinforcing steel was also addressed, as we carried out works through night shifts as per our work management strategy plan, which was necessary to maintain carpark operation throughout the project timeline.
Project: PSP Galston and Glenorie Wastewater
Client: Sydney Water/ITS Pipe Tech
Timeline : October 2014 – June 2015
The NSW Government + Sydney Water set up the Priority Sewerage Program (PSP) to provide improved wastewater services to residents and businesses all over Sydney. This part of the PSP will provide 625 properties in Galston and Glenorie with an upgraded wastewater system by 30th June 2015.
O’Hara Brothers have been contracted to work on stage 1 of this project which involves the excavation and installation of over 200 sewerage pots and plastic and metallic reticulation and transfer pipe.
O’Hara Brothers were contracted by Downer Infrastructure to assist with installing new underground stormwater infrastructure beside the existing rail track. The project included both day and night works including track shutdowns.
The Priority Sewerage Program (PSP) Alliance is made up of Sydney Water, John Holland, United Group, MWH and Manidis Roberts. The alliance was established to provide sewer reticulation, transfer , treatment and discharge schemes within the unsewered communities of Sydney.
O’Hara Brothers have been contracted to excavate and install sewerage pots and plastic and metallic reticulation and transfer pipe.
The $8.3 billion North West Rail Link is Australia’s largest public transport infrastructure project currently under construction and a priority rail project for the NSW Government. It will be the first fully-automated rapid transit rail system in Australia. The project will deliver eight new railway stations and 4,000 commuter car parking spaces to Sydney’s growing North West. The project also includes construction of twin 15km tunnels from Bella Vista to Epping – Australia’s longest rail tunnels. The North West Rail Link is expected to open to customers by the end of 2019.
O’Hara Brothers were contracted in February 2013 to complete potholing investigation works at various locations along the project route. We were also contracted to complete all cadastral and topographical surveying and various civil jobs that our client needed to be completed as part of the early works project.
O’Hara Brothers were the 1st civil contractor to start on the project in February 2013 and in addition to this O’Hara Brothers were awarded associated HV power cable installation contracts on the project.
The Victorian Desalination Plant in Dalyston, on the Bass Coast in southern Victoria, was completed in 2012. The cost of the project was $5.7 billion which included the excavation and installation of 86 km/s of steel water pipe, 86 km/s of 220Kv power cable and the construction of the desalination plant itself.
O’Hara Brothers were contracted to excavate and install underground HV power conduits and cable.
The Sydney Desalination Plant is located in the Kurnell industrial estate area in Sydney’s southern suburbs. Sydney’s Desalination Plant is one of the largest desalination plants in the world. It sources its water from the Tasman sea and is capable of servicing up to 1.5 million people. The project was completed in January 2010 at a cost of $1.8 billion.
O’Hara Brothers were contracted to excavate and install GRP underground conduits which were to be used for the internal flow of water around the plant itself.
Project: Mardi to Mangrove Link
Client: Gosford City Council/Wyong City Council
Timeline: September 2010 - 2011
The Mardi to Mangrove project involved the construction of 2 new pump stations and a 2 way pipeline between Mardi dam and the much larger Mangrove creek dam. The cost of the project was $120 million.
O’Hara Brothers were contracted to assist with the construction of 2 new pump stations and the installation of a high/low flow fish weir.
The Energy 2U Alliance was established in March 2009. The alliance is engaged to provide turn key engineering services including design, construction and procurement for civil works, buildings and mechanical and electrical works for multiple high-voltage substations and associated power distribution infrastruture.
O’Hara Brothers were contracted to assist with the earthworks in preparation for the construction of 2 zone substations. We were also engaged to excavate and install both storm-water and underground HV conduits associated with the construction of the 2 zone substations.