Recent Projects

Parramatta Light Rail

Parramatta Light Rail is one of NSW Government’s latest major infrastructure projects, connecting Westmead and Carlingford with a two-way track spanning 12 kilometres through Camellia and the Parramatta CBD. The project presented numerous environmental challenges, due to historical land uses and the proximity to numerous and sensitive environmental receptors throughout the rail corridor. Alliance continues to provide consultancy support services to the primary contractor and their subcontractors on almost all sections of the project. The scope of services provided includes material/ waste classifications, groundwater monitoring well installation and monitoring events, acid sulfate soil assessments and occupational hygiene services.

Northern Road Upgrade Stage 6

Alliance Geotechnical is providing consulting and testing services to assist CPB with the construction phase environmental, geotechnical and testing compliance.

The Northern Road is a key north-south road corridor between Liverpool and Penrith. The upgrade is an important component of the Western Sydney Infrastructure Plan.

Grand Pacific Walkway, NSW

The Grand Pacific Walkway will provide shared path access for a 3km stretch of coastline connecting Stanwell Park to the iconic sea cliff bridge in Coalcliff.

Alliance Geotechnical provided extensive services in the area of compliance testing, waste classification and regular geotechnical consulting services over 2017-2018. Professional advices covering shallow and deep foundations, stability and retention, compaction testing, laboratory material testing and waste classification.

Sydney Metro Northwest

North West Rail Link
Alliance Geotechnical was engaged for a complete range of geotechnical inspections, advice and the design and redesign of temporary works for the construction of the sub-structure including design of excavation shoring and excavations. Temporary works and their optimisation involved parameter interpretation, development of geological models and concept designs, safety in design and delivering complex analysis.

The project was named ENR’s Project of the Year as well as winning the Global Best Project award for the railway sector.

Sydney Metro City & Southwest

Alliance are providing geotechnical and environmental engineering supervision during the construction phase. Our supervision involves piling, earthworks inspections, geotechnical investigations, waste classification.

Lachlan’s Line Bridge

Lachlan’s Line Bridge, M2-Dlehi Road, Ryde NSW
This iconic double helix bridge project involved the construction of working platforms at the top of the M2 cuttings and operation of heavy lift cranes over and in close proximity to critical underground services infrastructure. Alliance delivered the design of piling platforms, including for an 800t crane and assessment of underground services, slope stability modeling, and certification. Alliance also provided a Technical expert onsite and successfully assisted a breakthrough in design review between the designers and project verifier at a critical stage of the works. Alliance also had a Senior Geotechnical Engineer onsite day and night for supervision of all piles for the bridge, ramps, retaining walls, associated clocktower construction, and other smaller structures.
The construction phase services involved certification of piled foundations by chartered engineers, bearing capacity assessments, and earthworks testing.

WestConnex M4-M5 Link Tunnels

Alliance are providing geotechnical and environmental consulting services to LSBJV assisting with the construction phase compliance.

Molong Solar Farm (NSW), Winton Solar Farm (VIC), Goonumbla Solar Farm (NSW), Bluegrass Solar Farm, Chinchilla (QLD)

Alliance Geotechnical provided a complete range of environmental, geotechnical and construction material testing services for various solar farms across Australia. Geotechnical investigation is provided to the client with the stratigraphical condition of the site together with required geotechnical parameters, constraints, subsurface conditions, and recommendations for the design of the proposed footings. In addition, Alliance's environmental and laboratory team provided waste classification services and specialist laboratory testing services.

Woolloomooloo Wastewater and Stormwater Separation Project

We provided waste classification and acid sulphate investigation reports for concept and final design. Includes deep trenching in the urban centre of the city as well as underbores in major roads.

Sydney Desalination Infrastructure Upgrade (DESAL 2)

Alliance provided factual and interpretative investigation information for the design, contamination assessments and waste classification.

Johnston’s Creek Renewal Project

Alliance provided an initial geotechnical investigation to assess sub ground conditions as well as groundwater monitoring and construction phase geotechnical and environmental services.

Winton Solar Farm

A geotechnical investigation is provided to the client with the stratigraphical condition of the site together with required geotechnical parameters for the development with an emphasis on the detection of probable shallow reactive clays. AG were commissioned by GRS to provide additional information the designers required for the pile footings which were overlooked in preparation of the preliminary geotechnical investigation which had been prepared by others.

Goonumble Solar Farm

AG undertook a geotechnical investigation to assist in the design and construction of a photovoltaic plant and substation in an area of 182 ha. Our investigation report addressed geotechnical constraints, subsurface conditions, geotechnical parameters and recommendations for the design of the proposed footings. We also provided specialist UCS and consolidation soil testing.

Bluegrass Solar Farm, Chinchilla (QLD)

Alliance provided details of the stratigraphical condition of the site, geotechnical design parameters and associated recommendations. Complex geological and ground condition of the site required detailed zonation map providing the bedrock depth and anticipated geotechnical constraints of the development. The geotechnical investigation results led to an alternative method for pile installation. The proposed development comprises the construction of a 200 Megawatts Photovoltaic Power Plant in a block of land with an approximate area of 550ha.

Proposed Playground at Karella Park, Villawood NSW

The geotechnical services provided by Alliance included an investigation to assess the surface and subsurface conditions and provide comments and recommendations relating to site preparation, temporary works, excavations, design parameters for footings and ground floor slabs, roads and pavements.

Proposed Sports Courts, Warriewood NSW

Alliance provided a contamination assessment of existing fill materials to determine the land-use suitability. We also conducted an investigation to provide recommendations relating to site preparation, temporary works, excavations, design parameters for footings and ground floor slabs and roads and pavements. A site classification report was prepared in accordance with AS2870-2011 with advice about field subsoil drainage and potential tie into new/existing stormwater infrastructure, soil aggressiveness to buried steel and concrete (for sports lighting pile design).

Sydney Opera House

Alliance was commissioned by Simpson Building Group to undertake an Asbestos Materials Inspection and Clearance of the subject area located at Sydney Opera House. The site inspections and clearances were carried out by one of our senior Licensed Asbestos Assessors (LAA).

Quakers Hill Water Treatment Plant

Alliance provided a range of environmental and geotechnical services for this project including supervising Occupational Hygienist and Licensed Asbestos Assessor, air monitoring, asbestos removal clearances and validation of remediation works, Asbestos Clearance Inspection Report. We also conducted geotechnical investigation works to assess ground conditions, factual geotechnical report, construction phase services including excavation stability inspections, bearing capacity inspections, piling inspections.

Meadowbank Education and Employment Precinct Project

Alliance has completed a range of works during the development and construction phases of the Schools at the Meadowbank Education and Employment Precinct Project. Alliance’s scope of works on the project included completion of Preliminary Site Investigation (PSI), Detailed Site Investigation (DSI) and supplementary investigations for the site. The findings of DSI and supplementary assessments informed the remedial works required for the site’s proposed land use. Alliance’s involvement throughout the investigation, remedial, and validation works has allowed for the on-time and on-budget completion of these projects and has enabled a streamlined construction phase for the project.

Riverstone Wastewater System

Alliance provided an Asbestos Management Plan (AMP), review and approval of removalists ARCP, airborne fibre monitoring and the supervision of all asbestos removal by a Licensed Asbestos Assessor with post remediation validation sampling and reporting.

Storage facility at Leland Street, Penrith

A range of geotechnical and environmental services were provided to the client including geotechnical investigation and report for DA submission, Preliminary site investigation, Detailed site investigation, asbestos survey, asbestos register and generate an appropriate asbestos management plan for this property in Penrith, NSW.

Pavement Investigation

A commercial development is proposed at 650 Wallgrove Road, Horsley Park. As part of the development, Wallgrove Road is proposed to be widened in order to construct a deceleration lane to allow a safe access and exit to/from the property. Alliance carried out a pavement investigation, carried out subgrade material strength testing in our NATA-certified laboratory, and flexible pavement design.

The Greens – Gledswood Hills NSW

Alliance provided a full package of geotechnical services to assess the surface and subsurface conditions relating to existing geotechnical and groundwater conditions, suitable footings system, foundation layer and geotechnical design parameters for the proposed clubhouse.

Transport Access Program (TAP) Upgrade

Alliance is provided Geotechnical investigation and construction phase engineering services to the transport Access Program Upgrade to a number of stations upgrades, this including: Lawson Train Station, Edgecliff Train Station, Platform 2- Mittagong Station, Fairy Meadow Station, Como Station, Arncliffe and Wolli Creek Stations

Sydney Light Rail

Alliance Geotechnical have undertaken a range of works on the Sydney Light Rail project with practical input and results that have been very well received. These services include redesign and realignment of the tunnel access ramp; crane and piling platform assessments (for both earthworks options and the alternative use of steel plates), Cone Penetration testing for verification and assessment of ground conditions; temporary sheet pile shoring designs for building and structure excavations; earthworks compaction and verification testing.