Congratulations to Brad Cole, CCF WA's Safety Coordinator of the Year. Brad is a natural leader who engages his colleagues with his positive and knowledgeable contributions. Brad’s sensible and calming approach to the changes brought to RJV as a result of COVID-19 proved his exceptional capabilities at rapidly adapting to changing processes and implementing them in a manner that became readily accepted by his onsite colleagues. Brad has also been a leader of change, driving the early adoption of RJV's online workplace health and safety management system.
Located at Lot 705 Armadale Road, Treeby is anticipated to produce approximately 660 lots and RJV were contracted to undertake site remediation and Bulk Earthworks for the entire site.
Much of the site was previously used as a brick manufacturing facility and by products and waste materials were placed in an uncontrolled way making some of the site unsuitable for a proposed residential development.
RJV was required to identify, excavate and screen some 100,000m3 of waste brick type material. This material was then tested by Environmental Consultants to confirm the absence of asbestos. Until that confirmation, this material was required to be assumed by RJV to be asbestos contaminated and rigorous controls - including wash down bays, boundary delineation, masks and significant dust control resources - were used to deal with this potential threat.
Once material had been certified as asbestos free, this material – principally brick of various sizes - was required to be blended with clean sand and buried at depths greater than 3m in nominated zones. Some 250,000m3 of material was moved to accommodate this process and RJV employed a rigorous materials tracking regime to ensure that the source location of the material prior to screening and the end location of the screened and blended material could be identified.
Once the brick material remediation had been completed, RJV completed some 400,000m3 of cut to fill to complete Earthworks to the site. At some points of the project, on any 1 day RJV’s Earthworks Supervisor and Site Engineer were managing 2 screens, 5 loaders, 8 Dump trucks, 2 Dozers, 2 Excavators, 3 Scrapers, 3 watercarts and 3 rollers and no safety incident was reported for the site.
These works were completed over the course of a summer with 40 hectares under RJV control. Dust monitors were utilised on the site boundary and no non-conformances were recorded over the course of the project.
RJV commenced construction of Section 3 of the Water Corporations DN1400 Yanchep Main Sewer – deep sewer within Stocklands Amberton Estate to their Northern boundary in September 2020.
This work involves the installation of 640m of 1400mm diameter GRP at depths of up to 16m and 3 cast insitu Type 7 manholes.
RJV’s significant Earthworks fleet was utilised to efficiently excavate to within 3m of pipe invert and some 150,000m3 of limestone/sand, (including 15,000m3 of hard rock) was moved by a fleet of dozers, excavators and dump trucks. A 90t Excavator was then employed to dig the final 3m to invert.
With a total fall across 640m of sewer of 379mm, (pipe grade of 1 in 1750), exacting installation standards and Quality Control was employed and grades were confirmed by a third party tolerance with no non-conformances.
In August 2011, RJV commenced construction of the Whiteman Edge development in Henley Brook, 20km NE of Perth CBD (adjacent to Whiteman Park). When complete, the development will comprise over 1,500 residential lots and will include in excess of 22 hectares of community recreational facilities, a neighbourhood shopping centre and schools. The development is a joint venture between Stockland, Department of Housing, and Whiteman Edge Developments.
Construction at the site presented a number of environmental challenges for RJV, which prides itself on its commitment to environmental management. The development area is flanked by sensitive wetlands and sits above an extremely high water table. Treatment of acid sulphate soils, strategic dewatering and close monitoring and management of groundwater infiltration are part of the day-to-day operations being undertaken by RJV at the site.
Large volumes of imported local sand have been required to bring the site up to its design levels. This has required target planning and management in consultation with local authorities to ensure that existing residents and infrastructure are not adversely affected by high volumes of truck and machine movements.
To date, RJV has completed contracts in excess of $80m since commencement.
On the doorstep of the Swan Valley, RJV commenced work at Vale in mid-2012 and has since completed over 90 separate works contracts for Stockland, totalling in excess of $110M and providing housing lots for over 2,500 new homes in Aveley during this time. The main area of the works has been situated on farmland predominantly used for the training of racehorses.
Prior to works commencement there was a significant demolition contract awarded to RJV for the demolition and disposal of structures, both above and below ground, including the cataloguing, removal, and disposal of large amounts of building materials including asbestos and other contaminants.
Subsoil conditions at Vale range from sand through to significant clay layers and occasional laterite. The management of acid sulphate soils and groundwater infiltration and acidity are daily tasks undertaken by RJV, along with the blending of site based topsoil with imported sand, providing a fill material that meets the strict permeability requirements of the development.
RJV commenced work on the Lakelands Estate in 2018 following the award of a 2 year term contract. Located in the City of Mandurah, Lakelands is a master planned community offering 1,600 homes in close proximity to the beach, Mandurah train Station and freeway access which takes 50mins to Perth CBD.
Additional to this, the estate boasts a $50m Shopping Centre, two new schools, a new library, community centre and a swimming school. Lakelands is a PEET project with consulting engineer duties being undertaken by Tabec.
Construction at the site is currently ongoing, with RJV delivering 2 combined Bulk Earthworks and Civil stages. Which includes strict environmental controls relating to both flora and fauna, both of which are at the forefront of the RJV management strategies at Lakelands.
RJV look forward to continuing our relationship with PEET into the future at Lakelands Estate.
RJV commenced construction on the Alkimos Shorehaven development in July 2009. The development is situated on the (then recently constructed) Marmion Avenue extension, which was also carried out by RJV.
The Shorehaven Development is a coastal community project that integrates residential lots with coastal walk trails, public open spaces with native vegetation, and coastal parklands. Significant consideration to local fauna and flora retention has played a large part in the RJV’s construction works; this included the retention and preservation of significant foraging areas for the Carnaby Black Cockatoo.
The site presented a number of construction challenges, which was part of the reason why RJV was chosen to carry out the work.
Significant rock excavation was carried out during both the earthworks and civil construction works, and – not uncommonly for such coastal developments – strong prevailing winds played a large part in the development of RJV’s environmental management strategy to combat airborne dust.
RJV’s association with Amberton began in 2013. Since that time, we have successfully delivered approximately 50 stages totalling approximately $70m of works.
Amberton is a coastal suburb at Eglinton, bounded by the coast to the West and Marmion Ave to the East approximately 48km North of the CBD. The geology of the site is such that RJV has constructed large cut to fill Earthwork packages in shifting coastal sands near the beach as well as Bulk Earthwork packages nearer Marmion Avenue requiring over excavation of lots in rock and top dressing with sand.
Current construction has focused on delivering the local road network to the coast and delivering stages closer to the beach. All while continuing to liaise and provide access for the growing local community.
RJV won the Catalina subdivision works in 2011 as has completed all works to date. RJV’s experience in the northern coastal corridor provided RJV with the knowledge of the terrain conditions that are prevalent in the area and the need for D10 and D11 Dozers and 651 Scrapers to rip and haul through the hard rock conditions onsite.
RJV also completed the upgrade of Joondalup Drive and the intersection with Marmion Avenue for the Catalina Subdivision entrance and the service upgrades associated with these works. Working alongside the existing businesses and residents directly adjacent the site proved difficult due to the coastal conditions and location of the site.
RJV managed dust issues with the use of 46,000 kl watercarts for dust suppression, adequate maintenance of wind fencing and the use of pre planning for hydromulch stabilisation to minimise the impacts of dust issues, measured through automated dust monitor stations set up at the extent of the site.
Recent works at Catalina have involved the carting of excess material from the “central cell” (bounded by Marmion Avenue and Connolly Drive) to both the “eastern cell” and “western cell”. The Eastern cell cartage was completed using 50 tonne articulated dump trucks and RJV was able to set up and manage an actuated temporary traffic signal crossing point in order to enable the trucks to cross Connolly Drive and cart material to fill areas in the east. This operation enabled higher productivity than an equivalent road truck operation and meant that RJV was able to offer the client for Catalina a cost saving as well as a reduction in the time frame for the earthworks.
RJV ability to manage this crossing and ensure that operators adhered to strict safety protocol meant that all earthworks were completed with no incidents onsite and no harm to the public utilising Connolly Drive as part of their daily commute. RJV also ensured that Connolly Drive was restored to its previous state with verges and road surfaces reinstated at the completion of works.
Currently RJV is conducting cut to fill works within the “western cell” and this also involves the cartage of excess from the “central cell” to fill areas west of Marmion Avenue. As part of this operation RJV has limited options in utilising earthworks equipment to complete cartage operations, and as such must utilise road trucks. RJV liaised with Main Roads WA and was able to negotiate permission for semi-trucks to proceed straight through the intersection of Aviator Boulevard and Marmion Avenue (currently a right turn only) to enable increased efficiency in haulage operations. This operation has currently been completed with no influence to Marmion Avenue traffic, particularly during peak hour operations.
RJV has worked with the consulting engineer and client at Catalina to achieve milestone dates and ensure that each stage has been brought within budget and on-time.
RJV began works on the Master-planned Brighton Development in 2000 and has completed every stage of this significant development since that time through both ongoing negotiated contract and open tender. RJV has created an average of 500 lots per year for release since construction began and has expanded its fleet of plant and equipment to meet the high demands of the sales climate over the last twelve years. Approximately 6 million m3 of limestone rock and coastal sand has been moved during bulk earthworks operations to date.
Extensive road networks, retaining walls, fencing and services such as drainage, power, lighting, sewer and water for sub-divisional works has all been completed to a high standard. RJV also coordinated the installation of Telstra, Gas, non-potable irrigation and other service contractor for miscellaneous services within the Brighton. RJV has also been pivotal in providing the key infrastructure elements associated with this development including road and trunk main service networks, lakes, public open spaces, village centres, schools and shops.
Value-added Initiatives: RJV has developed a process for onsite screening of excavated rock / sand material for re-use in trenching that has been able to conserve sand resources onsite. The method developed involves staged screening of trenching material to produce suitable backfill and bedding sand, thereby eliminating the need to source expensive imported sand from offsite. RJV also utilise the Erkat rock wheels onsite to efficiently excavate site trenches, particularly through the solid limestone rock within Brighton. The benefit of using the rockwheel was evident in its ability to produce neat trenches quickly in comparison to rock breaking.
RJV’s presence at Brighton has also been a platform for RJV to provide further services for projects in the local area. In 2010 RJV was awarded the Butler Railway Earthworks Extension Project by the Public Transport Authority, where approx 500,000 m3 of cut to fill earthworks were required to develop the railway cut through the Brighton development. As part of this project crushed onsite limestone cut material and processed into a MRWA specification subbase product. This material was suitable for use as part of road works at Brighton negating the need to import limestone from quarries outside of the local area.
RJV was also able to utilise sand / limestone excess material out of the railway cut as deep fill to Butler High School works that was being completed concurrently. RJV was able to provide significantly cheaper rates for fill material than local quarries and provide cost savings to the client.
RJV has also recently won a project at North Butler Primary School for the Department of Finance, Building and Maintenance Works. This project requires screening of excavated material to provide drainage aggregate suitable for infiltration drains onsite. RJV’s screening operations already in the area naturally lend itself to the works. The project also required the removal of limestone rock offsite to reduce the levels of the site. Through liaison with the consulting engineer for Brighton, RJV was able to source a fill location for future stages at Brighton and therefore offer a discounted rate for the excavation and removal of rock material from the North Butler Primary School Site, as well as provide fill material for future stages within Brighton.
RJV’s experience in hard rock conditions, skilled operators and large D11 and D10 Dozers has meant that each earthworks stage of Brighton has progressed with no need to blast the limestone caprock. RJV has been able to remove the risk of drill and blasting from the client through the rock ripping techniques developed over time at Brighton, all whilst still meeting program requirements and providing a quality product to the client.
As part of the development RJV also undertook bulk earthworks and civil works development at Jindalee for client MQ1. This project has run alongside Brighton and has been able to benefit from the level of resources and personnel RJV has positioned in the Brighton area.
Project Outcomes: To date RJV has been able to deliver each stage on time and within budget with multiple stages running concurrently. Key to the success of the development has been RJV’s commitment of plant, equipment and human resources to the development. RJV has been able to utilise the right equipment from its internal plant and equipment list for the project.
RJV have recently commenced works in the final stage of the Latitude 32 Flinders Precinct. This work involves lowering and then rebuilding existing McLaren Avenue and exporting 40,000m3 of material that work produces.
RJV have negotiated with Council a stages series of road closures that maintain access for heavy vehicle road users in the area as well as the adjacent Hope Valley Fire Station. The works also involve the protection of critical existing assets such as BP oil pipelines and high voltage power assets. Works are due for completion in March 2020 and awarded value is $4.9m