Case Studies

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  • Multiple Unit Project: Proposed Mixed Use Development Ardoss Street, Applecross
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright and Associates provided the Hydraulic Services design of a three storey mixed use development in Applecross. The building consisted on a ground floor car park area and commercial shop tenancies, commercial office tenancies at the first floor with a residential unit at the upper level. Working in conjunction with the designers at Sovereign Home Builders, PJ Wright and Associates designed and documented the sanitary plumbing, stormwater collection and disposal, hot and cold water and fire services for the complete project. The site was very compact having a total area of 235 square meters poses significant issues with setting out services to accommodate the various usages and allowing flexibility for tenants.

     

    Case Study: 1089        Designer: Sovereign Home Builders         Client: Trainer Property Trust

  • Multiple Unit Project: Proposed Apartment Development Swansea Street, East Victoria Park
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates provided the Hydraulic Services design for a 27 unit, three storey, apartment development in East Victoria Park. The project required amalgamation of two residential lots. Prior to the final clearance being awarded for the amalgamation, the WAPC required the diversion of a Water Corporation sewer to service an adjacent site and clear an existing easement encumbrance on the proposed site. PJ Wright & Associates undertook the Design, Documentation and Construction Engineering of the Sewer Diversion which ran down the centre of Swansea Street and along Forward Street. In addition, in order to achieve Planning Approval, PJ Wright & Associates prepared the stormwater management plans for the development which was later incorporated into the final Hydraulic Services design. The building consisted on a ground floor car park area with two storeys of residential units over. The Hydraulic Services designs prepared by PJ Wright & Associates required coordination with structural and other engineering disciplines to ensure clashes between services and structural elements did not occur. This Project was one of the first that utilized a Fire Engineering Solution utilizing a Brigade Booster as an alternative to Tanks and pumps with internal hydrants. Project documentation was completed in readiness for the Building Permit Certification.

     

    Case Study:1064           Designers : Sovereign Home Builders 

  • Commercial Project: Proposed Warehouse/Office Dellamarta Road , Wangara
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates provided the Hydraulic Services design for a new office and warehouse facility for Pemco Agencies, a leading wholesaler and distributor of quality health care, natural and organic products in Western Australia. Working in conjunction with the designers at Manor Homes PJ Wright & Associates designed and documented the Sanitary plumbing, stormwater collection and disposal, hot and cold water and fire services for the complete project.

     Case Study:1063      Designer/ Builder: Manor Homes Pty Ltd       Client: Pemco Agencies Pty Ltd. 

  • Institutional Project: St John Bosco College (Forrestdale Catholic College) Armadale Road Piara Waters, Western Australia.
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates has undertaken the Mater Planning and Staged design of Hydraulic Services for this new Catholic Education Office College which caters from Pre-primary through to Year 12 Seniors school. The ‘greenfield’ site has been developed through Master Planning to allow expansion of the college in four to five stages. Sanitary drainage, fire services, hot and cold water and gas services have been pre-planned in order to minimize disruption of the college whilst new works are constructed. Through consultation with other members of the Design Team has ensured services are fully coordinated allowing for clear documentation for the Builder and Contractors. The selection of fixtures and tap ware has been coordinated with Interior Designers to ensure a high quality of product is installed. It is believed the overall finish of the college will set a new benchmark for future College developments.

    Case Study: 1087       Architects : Santelli Architects         Client: Roman Catholic Archbishop of Perth.

  • Commercial Project: Proposed Office Warehouse and Workshop Manganese Street, Wedgefield
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates provided the Hydraulic Services design for a new Workshop Factory and Sales Office for Karratha Contracting in Wedgefield. The site limitations required specific areas to be addressed these were as follows:
    a)    Onsite alternative treatment unit for treatment and disposal of  sewerage and liquid wastes;
    b)    Onsite treatment and disposal of stormwater and wash-down from a truck wash bay; and
    c)    Fire Storage tanks and fire pumps to fulfil the DTS requirements for hydrants and hose reels in the new                building                        


    With careful consultation with the Architect, the Client and Health Department, Local Authority, PJ Wright & Associates were able to provide the Client with a set of documents which fulfilled the stringent Town of Port Hedland requirements for Commercial developments.


    Case Study: 1072       Architects :  CADDS Architectural       Client/ Builder:  Karratha Contracting.

  • Multiple Unit Project: Proposed Apartment Development Vincent Street, Leederville
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates provided the Hydraulic Services design for a ten apartment multiple unit development for Bold Green Developments in Leederville. The building consisted on a lower ground floor car park area with three storeys of residential units over. The site was small and compact with the building covering the majority of the lot. The designs prepared by PJ Wright & Associates required coordination with structural and other engineering disciplines to ensure clashes between services and structural elements did not occur.
    The development incorporated a Fire Engineering Solution utilizing a Brigade Booster as an alternative to Tanks and pumps with internal hydrants.

    Case Study: 1073       Architects : Urbanise Architects      Client/ Builder: Bold Green Developments

  • Institutional Projects: Infant Jesus Primary School Russell Street, Morley Western Australia
    Plumbing Design, Stormwater, Hydraulics Design

    PJ Wright & Associates been involved with Infant Jesus primary school since the early 1990’s, when significant expansion was undertaken at the school and the site was connected to the Ministers Sewer.

    Over time, access from Russell Street became a significant concern and the need to upgrade staff and administration facilities resulted in a Capital Development Plan (CDP) being prepared by the Project Architect.

    Due to the limitations of access from Russell Street and the need for new modern teaching areas, the CDP was developed for the staged replacement of all building to the southern end of the school.

    The progressive design of new two storey classroom blocks, undercover assembly/ hall, canteen, library, staff and administration facilities was undertaken in consultation with the School and the P & C group.

    The new modern facilities were developed around a central courtyard area with interconnected walkways. Critical to the completion was the preplanning of services to accommodate successive stages to be constructed with minimal or no impact of school operation during construction.

    The original Administration Block was converted to a Kindergarten, thus allowing the historically significant building to remain as a functional area of the school.

    Case Study: 1179      Architects: Santelli Architects      Client: Roman Catholic Archbishop of Perth      Location: Russell Street, Morley Western Australia

  • Commercial Projects: Kailis Trigg Beach Trigg Island Beach Carpark
    Plumbing Design, Stormwater, Hydraulics Design

    PJ Wright and Associates were engaged to provide a full services package for the redevelopment of the iconic Trigg Island Café located next door to the Trigg Island SLSC. The Café was completely refurbished with total replanning of the internal and outdoor areas.

    From the early feasibility/ concept stage through to final construction design with several designs developed. Modern finishes and fixtures have brought a new life to the Café which now incorporates a separate Restaurant & Take Away sections.

    Careful planning of new service routes was necessary to ensure connections to existing service infrastructure could be achieved.

    With careful planning and coordination with the installation Contractors throughout construction, it was possible for the project to be completed ahead of the time frame allowed for construction.

     

    Case Study: 1139        Designer: Design Wise Concepts         Client: The Kailis Group

  • Commercial Project: Service Station Locke Lane, Ellenbrook, Western Australia
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates were engaged to provide the Hydraulic Services design for a new United Fuels service station at Ellenbrook for Robinson Buildtech.

    The project required comprehensive design and documentation of industrial waste and stormwater drainage to ensure all environmental considerations were acknowledged and addressed.  

    By drawing upon our extensive experience in Service Station design, our consultancy team were able to provide hydraulic services designs that addressed the site and installation considerations, whilst complying with all requirements of the client’s brief.

     Case Study:1101     Designer/ Builder: Robinson Buildtech       Client: United Petroleum

  • Private Residence: Joel Terrace Mount Lawley, Western Australia
    Plumbing Design, Stormwater, Hydraulics Design

    PJ Wright & Associates were approached by Philip Nikulinsky Architect to develop a solution to a ground water problem at a private residence that was in construction.

    The lot contained a large landscaped area as well as a multi-level residence with below ground basement. Due to the natural contours of the lot and its location next to the Swan River, the geotechnical report determined a very high groundwater table flowing down the natural slope of the lot also accompanied by acid sulfate soils at a level approximately 1 meter below natural ground level.

    PJ Wright & Associates believed that there were different aspects that could be addressed in order to alleviate the ground water and the affect that it may have on both the construction and final residence.

    It was determined that drainage cells and geotextile fabric could be utilised to collect the flowing groundwater and provide a cut off upstream of the residence and construction location. The banks of cells were position at a level above the recorded acid sulfate soils but also within the ground water level. The ground water would permeate through the geotextile fabric and be harvested within the cell banks preventing downstream flow and minimising the impact on the building foundations.

    PJ Wright & Associates completed the design solution by utilising the harvested groundwater for irrigating the large landscaped areas. The environmentally sustainable solution resulted in reuse of the ground water as well as minimising potential damage that the ground water may cause to the building foundations and below ground basement.

    Close consultation occurred between PJ Wright, the Architect, Builder and Manufacturer of the drainage cells to ensure that the overall design solution and end result was efficient and achievable and clearly understood by all stakeholders.


    Case Study: 1201     Architects: Philip Nikulinsky Architect     Client: Private  

  • ACO Stormbrixx Drainage Cells: St Maria Goretti’s Catholic School 64 Morrison Street, Redcliffe, Western Australia
    Plumbing Design, Stormwater, Hydraulics Design

    PJ Wright & Associates specified and detailed ACO Stormbrixx Infiltration Cells for the first installation of the product within Western Australia. Due to the nature of the site it was determined that concrete soakwells, which are often assumed to be the standard infiltration device within Western Australia, would not be suitable and an alternative product was required.

    PJ Wright & Associates researched alternative products and sought technical advice from a variety of manufacturers to determine what they believed would be the most appropriate solution for the required stormwater disposal on site.

    As we were first engaged to design the full Hydraulic Services at Stage 12, the existing site was already established and existing services were present across the majority of the site. This resulted in minimal area available for the excavation and installation of infiltration devices to cater for the additional stormwater catchment.

    In addition to above the Perth Groundwater Atlas had indicated that the presence of the groundwater was at a level to limit the depth of any device to a shallow system. If installing traditional concrete soakwells, this would result in a dramatic increase in the amount of soakwells and the installation footprint due to the required clearances between each soakwell in order for them to efficient.

    Industry assumptions on ‘crate type’ infiltration devices are that they are inferior to concrete
    soakwells in both loading and infiltration and this often results in the products being overlooked in circumstances where they are more suited than the traditional options. The progression and technology of the products is now at a level that in many occasions they can be considered a more viable and cost effective alternative to concrete soakwells.

    PJ Wright & Associates believe that the ACO Stormbrixx is the superior Drainage cell available in Western Australia. This is due to a void ratio of 95% and a vertical loading capability on the top face of 420kN/m2.

    The inclusion of Stormbrixx for this project resulted in the ability to reduce the installation footprint and minimised the risk of damaging existing services whilst still catering for the design infiltration volume. Feedback from the installing contractors was very positive in all aspects of the design, product and ease of installation

    Case Study: 1224        Architects: Santelli Architects        Client: Roman Catholic Archbishop of Perth        

  • Institutional Projects: Joondalup Sub Acute (Intermediate Care) Facility Upney Mews, Joondalup, Western Australia.
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJ Wright & Associates was engaged to undertake the full Hydraulic Services Consultancy for the Intermediate Care Facility adjacent to the Joondalup Hospital Site.

    The project required the design of sanitary drainage, hot and cold water, fire and gas services to the site. Mobility and Disability Services accommodation briefs were utilized and the site had accessing issues due to significant fall across the site. The designs took into account the level differences between buildings and other areas of the site.  

    The development included 24 single bed accommodation units for transition care patients including disabled facilities all within a secure site.  The main Administration and Common facilities were based upon mobility requirements and on site staff facilities were incorporated. Utmost in the minds of the Design team was the need to maintain a ‘Residential’ Feel to the facilities and maintain compliance with the brief. 

    The Project incorporated the stringent Licensing and approval processes that the Health Department required for health care facilities. 

    Architects: Sandover Pinder    Client: Western Australian Department of Health.    Builder: Niche Living  

  • Commercial Project: Proposed Warehouse/ Office Evinrude Bend, East Rockingham
    Plumbing Design, Stormwater, Hydraulics Design, Fire Services

    PJW & A provided the Hydraulic Services design for a new office and warehouse Development in East Rockingham. Part of the development was the design of an Industrial waste flow control and monitoring systems for a Chemical Toilet Waste Receiving Facility located on the site.

    Working in conjunction with the designers at Complete Site Services,   PJW & A designed and documented the Sanitary plumbing, stormwater collection and disposal, hot and cold water and fire services for the complete project.

    The stringent regional Development Guidelines required the incorporation of rainwater harvesting and recycling system which was utilized for the initial wash-down processes associated with the Waste Receiving Facility.

    Designer/ Builder : Complete Site Services.      Client: Complete Group  Pty Ltd.

     

  • Commercial Project: Proposed Multi-Brand Showroom Frobisher Street , Osborne Park.
    Plumbing Design, Stormwater, Hydraulics Design

    PJW & A provided the Hydraulic Services design for a new Showroom building for the Barbagallo Motors in Osborne Park. The new facility was to house multi-brand luxury vehicles such a Ferrari, Maserati and Aston Martin.

    Working in conjunction with the Oldifield Knott Architects, PJW & A designed and documented the Sanitary plumbing, stormwater collection and disposal, hot and cold water and fire services for the complete project.

    The client's brief required maximum exposure to the vehicles from both within and outside the building. The result was an expansive floor plan with full height glazed windows to the only two elevations. Service area where located at the rear of the buildings which were constructed along the site boundary. Services needed to be coordinated to ensure that concealment did not reduce the provisions for access.

    Special consideration was given to the roof drainage design due to the limitations the continuous glazed facades posed. The entry canopy required the design of box gutters and downpipes complying the the stringent requirements of AS 3500. The designs were developed in consultation with the Project Architect and Structural Engineer.  

    Project Architect: Oldfield Knott Architects.     Client: Barbagallo Motors.    

    Builder:Giorgi Exclusive Homes 

  • Commercial Project: Maison Saint Honore 100 Benara Road, Caversham
    Plumbing Design, Stormwater, Hydraulics Design

    PJW & A were engaged to undertake the full restoration and upgrade of the historically significant ‘Dear Friends’ Restaurant in Caversham.

    From the initial feasibility to the final upgrade, PJW & A worked in close consultation with the RH Property (Project Managers for the developer).

    The scope of design works included the full replacement of the onsite wastewater treatment system, new domestic hot and cold water service, site and building stormwater disposal systems.

    Using the latest design methodologies, specific engineered design solutions were developed with suppliers and contractors that minimized site impact.

    A new Alterative Treatment Unit incorporating a ozone disinfection process was selected as the most environmentally friendly method for wastewater treatment. Flatbed leach drains were selected and installed in dispersal areas along the street frontage. These were landscaped with natural grasses to present a natural buffer zone between the carpark area and Benara Road.

    The site stormwater design incorporated a ‘permeable paving’ solution. The designs were based upon tested, site specific geotechnical data. The result was that a large portion of the carpark area was constructed as a trafficable lawn surface.

    The trafficable lawn area permits partial percolation with excess runoff collected by a sub-surface drainage layer for disposal to the street drainage. The result was a majority of the car parking that normally would be bitumen, was now an irrigated trafficable lawn area that could become multipurpose.

    Client / Project Manager:  RH Property         Tenant: Maison Saint Honore   

    External Works Contractor: All About Asphalt and Bitumen



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Hydraulic Services Design

PJ Wright & Associates specialise in Hydraulic Design Services & understand the importance of being able to provide our clientele with a comprehensive Hydraulic design & documentation packages of the highest standard, which is cost efficient and functional for the end user. We offer a diverse range of Plumbing Design & Hydraulic Design Consulting services to suit our clients needs.