Delivering resilient and sustainable development and infrastructure.

Our dedicated civil engineering team takes pride in optioneering, designing, construction management, and commissioning a wide range of essential facilities and infrastructure for communities. From residential and commercial developments to three-waters (water supply, waste water and stormwater) and flood protection infrastructure, we provide safe and sustainable environments for our communities.

Growing and connecting communities by unlocking the potential of both greenfield and brownfield sites we work on is our specialty. We design and coordinate essential services and utilities like water supply, wastewater, stormwater, roading systems, power, lighting, telecommunications, and landscape ensuring comprehensive, sustainable and efficient infrastructure delivery.

We do this by seeking to understand projects holistically, by collaborating with our clients and stakeholders and using our extensive technical experience to find efficient solutions.

DOWEB_Video_Tile_Civil
Our civil engineering services include:
Water supply – water treatment and reticulation expertise
Wastewater – treatment and reticulation expertise
Stormwater – Reticulation, conveyance and treatment
Roading expertise
Earthworks design, observation and testing
Arranging power, telecommunications and landscaping services
Infrastructure strategic planning advice
Design standards review
Geotechnical investigations
Resource management and policy planning services
Structural design including seismic assessments
Topographical and legal surveys
Options assessment for future adaptation
  • Feasibility / options assessment, asset management
  • Network modelling
  • Concept, preliminary and detailed design
  • Pump station design
  • Draughting
  • Contract administration and supervision
  • Feasibility/ options assessment, asset management
  • Network modelling
  • Concept, preliminary and detailed design
  • Pump station design
  • Draughting
  • Contract administration and supervision
  • Flood modelling – river and reticulation
  • Stopbanks
  • Climate change impact
  • First flush, swale design and treatment
  • Feasibility / options assessment
  • Concept, preliminary and detailed design
  • Pump station design
  • Hydrology, irrigation and surface water resource management
  • Draughting
  • Contract administration and supervision
  • Roading geometric design
  • Pavement design including right of way and car park design
  • Civil 3D modelling and design
  • Intersections and roundabouts
  • Contract administration and supervision

Our geotechnical engineering team investigates the ground conditions to determine how the ground is going to respond for use in civil applications – find out more.

Our planning team excels in all aspects of resource management planning – find out more.

We offer a comprehensive range of services, enabling us to support you at every stage of your project. Often working closely as part of the design team, our structural engineers have experience in a wide range of projects including the design of foundation systems and seismic assessments – find out more.

Our survey team can precisely set out the location of your civil works on-site based on your plans, as well as providing a huge range of other survey services – find out more.

Our civil engineering services include:
Water supply – water treatment and reticulation expertise
  • Feasibility / options assessment, asset management
  • Network modelling
  • Concept, preliminary and detailed design
  • Pump station design
  • Draughting
  • Contract administration and supervision
Wastewater – treatment and reticulation expertise
  • Feasibility/ options assessment, asset management
  • Network modelling
  • Concept, preliminary and detailed design
  • Pump station design
  • Draughting
  • Contract administration and supervision
Stormwater – Reticulation, conveyance and treatment
  • Flood modelling – river and reticulation
  • Stopbanks
  • Climate change impact
  • First flush, swale design and treatment
  • Feasibility / options assessment
  • Concept, preliminary and detailed design
  • Pump station design
  • Hydrology, irrigation and surface water resource management
  • Draughting
  • Contract administration and supervision
Roading expertise
  • Roading geometric design
  • Pavement design including right of way and car park design
  • Civil 3D modelling and design
  • Intersections and roundabouts
  • Contract administration and supervision
Earthworks design, observation and testing
Arranging power, telecommunications and landscaping services
Infrastructure strategic planning advice
Design standards review
Geotechnical investigations

Our geotechnical engineering team investigates the ground conditions to determine how the ground is going to respond for use in civil applications – find out more.

Resource management and policy planning services

Our planning team excels in all aspects of resource management planning – find out more.

Structural design including seismic assessments

We offer a comprehensive range of services, enabling us to support you at every stage of your project. Often working closely as part of the design team, our structural engineers have experience in a wide range of projects including the design of foundation systems and seismic assessments – find out more.

Topographical and legal surveys

Our survey team can precisely set out the location of your civil works on-site based on your plans, as well as providing a huge range of other survey services – find out more.

Options assessment for future adaptation
Request a call from a civil engineer

People
VIEW ALL PEOPLE
SOPHIE Sophie South – Principal Civil Engineer
GARY Gary Stevenson – Principal Civil Engineer
DAVE-B Dave Bowman – Senior Civil Project Engineer
REILLY Reilly Connor – Principal Civil Engineer
Man in dark grey shirt standing in a park Jamie Eggers – Senior Engineering Technician
JOE-T Joe Turner – Engineering Manager
Davis Ogilvie man with dark zip branded top with a park in the background in Timaru. Selwyn Chang – Principal Civil Engineer (Timaru Lead)
ELLIOT Elliot Duke – Director, Chartered Professional Engineer
FREQUENTLY ASKED QUESTIONS
I want to subdivide my property, can you help?
What is an Onsite Wastewater Management System (OWMS) for domestic wastewaters?
How can you help with my non-reticulated water supply?
What is high pressure water?
What is a low pressure sewer (LPS)?
What is a Septic Tank Effluent Pumping (STEP) system?
I’ve been asked to provide an Erosion and Sediment Control Plan (ESCP) for my earthworks, what is this?

We provide complete support from consenting and surveying, through to engineering design of access-ways (roads and right of ways) and ensuring all the essential services are connected to your property. Check out our Development projects for more information on how we can help.

There are several options for treatment and disposal of wastewater from your home.  These include aerated or septic tank treatment and land application of effluent.  Given the number of options available, our team can assess your land and provide disposal options. Our survey, planning and civil teams can advise on Regional Government consents that are required.

Typically, if a water supply is not reticulated from a Council system it is supplied by rainwater, surface water source (creek or stream) or a groundwater well. Our civil team can advise you on the requirements to protect the source, and treat and supply water as defined by the Water Regulator Taumata Arowai.  

High Pressure Water is the common term used by engineers for potable or drinking water supplied by a reticulated (piped infrastructure) network.

A low pressure sewer system is a waste collection and conveyance system that is an alternative to a gravity pipe system. LPS uses a low-pressure pump system to transport wastewater via reticulation, to a treatment plant. The system comprises a pump station on private land that discharges to Council reticulation. Ownership if the pump station and discharge pipe up to the property boundary kit is typically owned and maintained by the property owner.

A septic tank effluent pumping system (STEP) is a waste collection and conveyance system that is an alternative to a gravity pipe system. STEP uses a septic tank and pump, The septic pump is provided to separate solids and provide some treatment before pumping into Council reticulation. Ownership if the pump station and discharge pipe up to the property boundary kit is typically owned and maintained by the property owner.

An ESCP (Erosion and Sediment Control Plan) and determines the processes and methods to be used onsite to minimise the potential effects of erosion, sedimentation, and dust generation during construction.  We can assist in providing this plan for resource consent application and to inform the contractor of minimum requirements. 

FREQUENTLY ASKED QUESTIONS
I want to subdivide my property, can you help?

We provide complete support from consenting and surveying, through to engineering design of access-ways (roads and right of ways) and ensuring all the essential services are connected to your property. Check out our Development projects for more information on how we can help.

What is an Onsite Wastewater Management System (OWMS) for domestic wastewaters?

There are several options for treatment and disposal of wastewater from your home.  These include aerated or septic tank treatment and land application of effluent.  Given the number of options available, our team can assess your land and provide disposal options. Our survey, planning and civil teams can advise on Regional Government consents that are required.

How can you help with my non-reticulated water supply?

Typically, if a water supply is not reticulated from a Council system it is supplied by rainwater, surface water source (creek or stream) or a groundwater well. Our civil team can advise you on the requirements to protect the source, and treat and supply water as defined by the Water Regulator Taumata Arowai.  

What is high pressure water?

High Pressure Water is the common term used by engineers for potable or drinking water supplied by a reticulated (piped infrastructure) network.

What is a low pressure sewer (LPS)?

A low pressure sewer system is a waste collection and conveyance system that is an alternative to a gravity pipe system. LPS uses a low-pressure pump system to transport wastewater via reticulation, to a treatment plant. The system comprises a pump station on private land that discharges to Council reticulation. Ownership if the pump station and discharge pipe up to the property boundary kit is typically owned and maintained by the property owner.

What is a Septic Tank Effluent Pumping (STEP) system?

A septic tank effluent pumping system (STEP) is a waste collection and conveyance system that is an alternative to a gravity pipe system. STEP uses a septic tank and pump, The septic pump is provided to separate solids and provide some treatment before pumping into Council reticulation. Ownership if the pump station and discharge pipe up to the property boundary kit is typically owned and maintained by the property owner.

I’ve been asked to provide an Erosion and Sediment Control Plan (ESCP) for my earthworks, what is this?

An ESCP (Erosion and Sediment Control Plan) and determines the processes and methods to be used onsite to minimise the potential effects of erosion, sedimentation, and dust generation during construction.  We can assist in providing this plan for resource consent application and to inform the contractor of minimum requirements. 

Projects
VIEW ALL PROJECTS
DOWEB_Photo_Project_Opuke_1630x1600 Ōpuke Hot Pools – Civil Engineering
Aerial view of subdivision housing development Ravenswood – Civil Engineering
DCIM100MEDIADJI_0801.JPG Shands Road Intersection Upgrade – Civil Engineering
Aerial view of the temporary accommodation for residents affected by severe weather events in the region. TAS Flood Recovery Housing – Civil Engineering
View of a subdivision development Paroa Estate – Civil Engineering
Engineering
Surveying
Planning
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From envisioning dream homes to orchestrating large-scale land development ventures, DO provides comprehensive engineering services, where art and science converge to shape the world we live in. Through a careful blend of technical expertise and creative thinking, we design, construct, and maintain the built environment for a better tomorrow.

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With a rich history dating back over 90 years, our company was established as a premier surveying firm, surveying is ingrained in our DNA. Leveraging our extensive experience, we provide a diverse range of specialised skills, seamlessly integrating state-of-the-art technology and deep industry knowledge to ensure swift and precise outcomes for our clients

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Our experienced planning team specialises in all aspects of resource management planning. Whether it’s overseeing large-scale land developments, facilitating private plan changes, or providing site-specific planning advice, our team is well-versed in navigating the complexities of this field.

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