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Engineering

Engineering is at the core of Fraser Thomas and we’ve been doing it for over 45 years!

Our highly skilled and experienced team can provide you with comprehensive and high quality engineering services covering the civil, environmental, geotechnical and structural disciplines, ranging from relatively small projects to large highly complex ones.

Where necessary, we partner with other professionals such as Architects, Planners and Landscapers to supplement our in-house resources, giving us the flexibility to undertake quite diverse and unique projects.

We keep up to date with the latest developments in our respective disciplines, both technical and regulatory in nature, and use a wide range of analytical and design software to solve your problems and deliver quality outcomes efficiently.

Engineering

Civil Engineering

The Civil Engineering team provide design, consenting and project management services and work extensively on projects involving:

  • Feasibility investigations, design, construction observation and completion of residential subdivisions, commercial and industrial site developments
  • Unserviced, self contained land development with integral stand alone sustainable stormwater, water and wastewater management
  • Innovative stormwater, water and wastewater solutions on difficult sites
  • Stormwater treatment, detention and reuse
  • School, health and community developments
  • Flood risk assessments
  • Local authority engineering including sanitary sewer and water reticulation upgrading and rehabilitation
  • Engineer to the Contract services and project management.
  • Natural and artificial sportsfield facilities
  • Earthworks and erosion/sediment control
  • Roading and pavement design

We have designed and overseen the construction of many major projects in the Auckland/Waikato regions including: the award winning Conifer Grove Subdivision in Takanini, the FIA compliant motor racing complex at Hampton Downs and Colin Dale Motorsport Park at Puhinui; major sewer and stormwater pipe reticulation projects; and a large scrap metal recycling facility in Onehunga.

We provide design and consenting services for three major regional landfills across the North Island. Our expertise in this specialist sector is recognised nationally and internationally.

Fraser Thomas stormwater services include integrated catchment management planning.

Our expertise also covers low impact, appropriate technology, stormwater solutions, Water sensitive design, Stormwater reticulation, treatment and disposal, Watercourse infrastructure assessment surveys, Flood assessments and modelling.

 

Fraser Thomas have specialist skills in on-site wastewater management (TP58), decentralised sewerage, system design, consenting and certification including cost effective upgrades of existing wastewater systems. We have been at the forefront in the development of appropriate wastewater technology in New Zealand, including oxidation ponds, aerated lagoons, wetlands, irrigation of municipal effluent, milliscreens, and decentralised sewerage and are recognised for its innovation, cultural sensitivity and consultation skills in this area.

 

As part of rolling out the Auckland Unitary Plan (notified September 2013), Auckland Council has made available online maps (www.aucklandcouncil.govt.nz) to identify areas prone to flooding within the Auckland Region. On these maps you can see whether your property is affected by overland flowpaths or flooding. Many of these maps are based on a rapid flood hazard assessment approach and are generally conservative in nature.

Council may require you to undertake a flood assessment if you wish to develop your property and if your property is located within one of these flood hazard areas, or you may like to assess the risk of flooding to existing buildings on your property for your own peace of mind.

We have undertaken numerous flood assessments for private properties for these reasons. These assessments range from relatively simple projects (e.g. site inspection, runoff calculations and short letter report) to more sophisticated work (e.g. catchment management plan review, flood modelling), depending on the nature of the flood hazard.

 

Any land development or construction involving earthworks (excavation, trenching, drilling etc.) or any land disturbing activities can result in the erosion of exposed surfaces and sedimentation within the receiving environment.

Fraser Thomas have experience in appropriate erosion and sediment controls (ESC) and operate and maintain ESC measures as part of any earthworks activities in compliance with the Resource Management Act 1991.

 

Fraser Thomas have extensive experience in roading and pavement design both in New Zealand and Internationally. Our civil teams also undertake resource consenting, contract preparation and supervision.

All roading and pavement design works take into consideration:

  • Geotechnical investigations
  • Stormwater treatment and disposal
  • Retaining works investigation
  • Subgrade improvement and stability

 

Engineering

Environmental Engineering

Fraser Thomas’s Environmental Engineering team has a wealth of knowledge, skills and experience from a large variety of projects spanning over 35 years. Our team’s expertise is recognised both locally and overseas by public, private and corporate clients, as well as government and aid agencies.

We have a reputation for Quality Experience and Delivery (QED!), applying appropriate technology to different contexts, bringing an innovative approach to environmentally sensitive problems and for showing cultural sensitivity in consultation with Iwi and other cultures. At a personal level we care about protecting and enhancing the environment, during our lifetimes and for future generations.

We can assist you with a wide range of specialist environmental consultancy services including:

  • Industrial and trade activity (ITA) consenting for high risk sites and environmental management of moderate risk sites
  • Asset Management.

We can lead you through the resource consenting process, working through concept, preliminary and detailed design, tendering and construction observation to turn your project into reality. This includes specialist RMA/Court work, when required.

Fraser Thomas have trained staff to undertake domestic and commercial building surveys for asbestos under the new Asbestos Regulations 2016. These staff have all attended a rigorous four day course entitled “BOHS-IP402 Survey and Sampling Strategies for Asbestos in Buildings”, which enables them to carry out Asbestos Management, Refurbishment and Pre-demolition surveys of buildings and campuses. We have over 16 years of contaminated site experience, including assessing, remediating and managing asbestos contamination in soils, and over 40 years of building inspections through our structural engineers.

We can help your business to meet your requirements under the Health and Safety at Work (Asbestos) Regulations 2016.

Our services include:

  • Desktop studies, site inspections and intrusive sampling
  • Identification of types of asbestos containing materials using appropriate sampling methodologies
  • Development of Asbestos Management Plans, including risk evaluation and protective measures
  • Development of Asbestos Remediation Plans.

 

Fraser Thomas Water services include:

  • Rainwater harvesting
  • Water supply and treatment
  • Water reticulation, pumping and network modelling
  • Groundwater takes and bore pumping systems.

 

Fraser Thomas stormwater services include integrated catchment management planning.

Our expertise also covers low impact, appropriate technology, stormwater solutions, Water sensitive design, Stormwater reticulation, treatment and disposal, Watercourse infrastructure assessment surveys, Flood assessments and modelling.

 

Fraser Thomas have specialist skills in on-site wastewater management (TP58), decentralised sewerage, system design, consenting and certification including cost effective upgrades of existing wastewater systems. We have been at the forefront in the development of appropriate wastewater technology in New Zealand, including oxidation ponds, aerated lagoons, wetlands, irrigation of municipal effluent, milliscreens, and decentralised sewerage and are recognised for its innovation, cultural sensitivity and consultation skills in this area.

 

Fraser Thomas has extensive experience in successfully obtaining Industry and Trade Activity consents for high risk activities such as scrap metal processing and vehicle dismantling sites. We design the stormwater treatment system, prepare Environmental Management Plans, prepare resource consent applications, undertake environmental auditing, design trade waste treatment systems and apply for trade waste consents.

 

As part of rolling out the Auckland Unitary Plan (notified September 2013), Auckland Council has made available online maps (www.aucklandcouncil.govt.nz) to identify areas prone to flooding within the Auckland Region. On these maps you can see whether your property is affected by overland flowpaths or flooding. Many of these maps are based on a rapid flood hazard assessment approach and are generally conservative in nature.

Council may require you to undertake a flood assessment if you wish to develop your property and if your property is located within one of these flood hazard areas, or you may like to assess the risk of flooding to existing buildings on your property for your own peace of mind.

We have undertaken numerous flood assessments for private properties for these reasons. These assessments range from relatively simple projects (e.g. site inspection, runoff calculations and short letter report) to more sophisticated work (e.g. catchment management plan review, flood modelling), depending on the nature of the flood hazard.

 

Fraser Thomas has a wealth of experience in solid waste management (SWM), having provided a wide range of services to the industry over many years, both within NZ and overseas.

Our landfill experience is recognised both nationally and internationally, with Fraser Thomas providing engineering services to three major regional landfills within New Zealand.

Services offered include:

  • SWM awareness-raising and education programmes.
  • Integrated SWM Planning: baseline surveys; technical, economic, environmental and social analysis; community consultation; strategy and action plan development.
  • Composting Facilities, Refuse Transfer Stations, Resource Recovery Centres, Cleanfills and Landfills:
    • Site investigations (survey, geotech, environmental), concept and preliminary design
    • Resource consent applications,  assessment of environmental effects  and consultation
    • Providing expert witnesses and technical evidence at resource consent hearing
    • Detailed design, tendering, construction observation and certification
    • Facility management plans, capital and operating expenditure cost estimate
    • Operational advice and remedial works implementation
    • Peer review.
  • Landfill leachate, stormwater and gas management.
  • Closed landfills, aftercare risk assessments, management plans, ongoing monitoring

 

“Contaminated land” is land that contains hazardous substances (contaminants) in soil at elevated levels that can have significant adverse effects on human health and the environment.

Contaminated land needs to be managed or remediated to protect people and the environment. We have been doing Contaminated Land work for over 15 years and have completed over 200 projects to date including investigating historical contamination of former agricultural and horticultural land, industry, old landfills and sportsfields subject to a wide range of potential contaminants – fill material, asbestos, heavy metals, pesticides/herbicides, hydrocarbons, etc.

We cover all facets of contaminated land work, including the following:

  • Preliminary site investigations (PSI)- desktop studies, visual appraisal, reporting
  • Detailed site investigations  (DSI) – PSI + soil/water sampling, laboratory analyses and XRF sampling, reporting
  • Risk assessments
  • Resource consenting – NESCS, District and Regional Plans
  • Remedial Action Plans, Management and Monitoring Plans
  • Supervision of remedial works, site validation and reporting
  • Peer review and preparation of expert evidence

 

Engineering

Geotechnical Engineering

Any building or development project starts from the ground up and requires geotechnical input. Fraser Thomas has a strong team of Geotechnical Engineers and Engineering geologists with a reputation for thoroughness and innovation, enabling us to assist you with all aspects of soil and ground investigations. From performance analysis of embankments on highly compressible ground and designing retention for deep excavations to investigating foundation conditions and slope stability, we’ll make sure your project is rock solid.

Our Geotechnical Engineering services include:

  • Foundation performance analyses on highly compressible ground, including deep peat swamps
  • Pile load parameters and performance prediction (new and existing)
  • Performance prediction of major facilities ranging from large diameter oil storage tanks to multi-storey buildings on variable foundation conditions
  • Geotechnical/geological aspects of landfill and waste disposal systems
  • Providing expert evidence.
  • Temporary support design for deep excavations
  • High and complex retaining wall design
  • Ground anchor and tie back design
  • Quarry site investigation and management plan development
  • Forensic engineering investigations
  • Peer Review in relation to ground water dewatering for large scale developments

Fraser Thomas’ Geotechnical team have extensive experience with sub-soil investigation and analysis for residential, commercial, industrial and multi-storey building foundations and site development. The purpose of the investigation is to determine the characteristics of the soil at a particular location.

Typically the process follows the below steps:

  • Review of proposed development plans and liaison with the client to determine required scope
  • Desktop review of existing geotechnical and geological information
  • Scoping field investigation and engaging third party drilling contractors (if required)
  • Management of all aspects of the field and ground investigation
  • Collection of soil samples from the field
  • Supervision of drilling and Cone Penetration Test (CPT) rigs
  • Conducting field tests for determining the strength and compressibility characteristics of the soil
  • Study of ground water level conditions and collection of water samples for chemical analysis
  • Supervision of geophysical exploration if necessary
  • Testing in the laboratory of all samples of soil, rock, and water
  • Preparation of drawings, geological cross sections, borehole logs and charts
  • Analysis of the results of the field and laboratory tests
  • Preparation of factual and interpretative geotechnical report

 

Slope stability investigations/modelling and analysis and design of remedial works that is needed to be carried out to assess the risk of potential or ongoing slope movement during any proposed or existing land development or construction work.

Fraser Thomas has extensive experience and knowledge in the assessment of slope stability risks for sloping sites and can provide appropriate recommendations and parameters for foundation design and remediation to ensure that foundations are not affected by future ground movement or reactivation of historic slope instability features.  Fraser Thomas can also undertake rock slope stability investigations and provide rock bolting design.  We use up to date computer to undertake slope stability analyses and have a team of trained engineering professionals that have provided successful foundation solutions for sites that require slope stability assessments, throughout New Zealand.

 

Settlement modelling and appraisal that is required to be carried out to assess the risk of potential or ongoing ground movement associated with settlement and differential settlement during any proposed or existing land development or construction work.

Fraser Thomas has extensive experience and knowledge in the assessment of potential or existing settlement risks for sites and can provide appropriate recommendations and parameters for foundation design and remediation to ensure that foundations are not adversely affected by future ground movement.

 

Excavatability investigation and analyses of a site to establish the strength and density of the soil and determine the most appropriate and effective methods to remove earth materials. Fraser Thomas have a strong team of Geotechnical Engineers and Engineering Geologists to undertake a full analysis of your site.

 

Fundamental to our work in Canterbury has been the appropriate assessment of the liquefaction potential of the soils in Christchurch City and the broader Canterbury region. Fraser Thomas engineers are familiar with the most up-to-date methods of liquefaction risk assessment, and are able to provide recommendations to the most appropriate foundation systems for liquefiable soils throughout New Zealand. We are familiar with the latest ground remediation techniques, which are used to mitigate the risks of soils being subject to liquefaction.

 

In order to provide reliable recommendations for remedial measures for damaged buildings, the cause of the observed damage requires to be reliably determined.  The determination of the cause of damage involves “forensic engineering” techniques, which involve an iterative process of investigation and appraisal in order to eliminate possible causes, and determine the most likely cause.

Fraser Thomas’ Geotechnical team have extensive experience with assessment of damaged dwellings and buildings to determine cause of damage and provide remedial solutions to structures or land.

 

Fraser Thomas’ Geotechnical team can undertake construction observation and provide PS4 Geotechnical certification for the construction of building platforms, including site excavations etc, as per the Council building consent conditions. We undertake inspections and certification of the building platform stripped subgrade, footing excavations, compacted hardfill and clayfill, foundation pile bores and retaining wall pile bores.

 

Engineering

Structural Engineering

Fraser Thomas have an established and reputable Structural Engineering team, renowned for design excellence and innovation across a wide range of projects. Our team bring together extensive experience in the complete design, specification, supervision and certification of structures in most construction materials, including structural steelwork, reinforced and pre-stressed concrete, reinforced masonry, timber and stainless steel.

Fraser Thomas also provides regulatory compliance and due diligence investigations, expert testimony, specialist structural investigations and design.

We provide a number of specialist services:

  • Building Refurbishments
  • Residential, commercial and industrial buildings
  • Education and institutional buildings
  • Expert evidence
  • Regulatory compliance and due diligence investigations
  • Specialist structural investigations
  • Building controls
  • Proprietary system support.

Senior staff hold individual representation on Standards New Zealand Technical Committees and provide expert advice to regulatory agencies e.g. Department of Building and Housing, in the Structural Engineering field.

A structural assessment report would generally include the following:

  • Describe the building construction including materials
  • Report on all the structural damage
  • Analyse the issues to determine if they are of structural concern
  • Advise on structural repair methods and solutions
  • Report on the physical ground’s condition e.g. evidence of liquefaction, lateral spreading etc.
  • Monitor the structural repairs during construction stage
  • Report on structural repairs and provide engineering “sign-off” / producer statements

 

Our structural engineers work collaboratively with our civil engineering team ensure all civil structures are designed for the best outcomes. These often include:

  • Bridges
  • Retaining walls
  • Marine structures
  • Tanks
  • Utility platforms

 

From designing retaining walls and buildings of any size and providing draughting services, through to assessing the stability of new and existing structures or refurbishments, Fraser Thomas can get your construction off to a solid start.

We have worked on many projects and varying structure types including:

  • Apartment buildings
  • Schools and Healthcare facilities
  • Warehouses
  • Commercial office buildings

 

Engineering

Forensic Engineering

Forensic engineering involves specialist skills and expertise when things go wrong, such as building damage – cracks, differential settlement, wind, accidents etc.

Typically, our senior structural, geotechnical, and/or environmental engineers get involved in such issues, often commissioned by private clients, insurance companies, or lawyers.  Some projects are relatively simple, involving a site walkover and letter report.  Others are much more complex, involving in-depth desktop analysis (reports, drawings, etc), detailed investigations (eg survey, geotechnical), engineering analysis, and the preparation and presentation of expert evidence in Court.  Often we are required to develop solutions to the problems encountered, including detailed design and costing of what may range from relatively minor to major remedial works.

Expertise and experience in helping prevent you experiencing problems affecting your property.
This includes due-diligence pre-purchase inspections, routine condition assessments of assets and buildings, seismic assessments, leaky buildings, and asbestos checks.

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