We provide much more than pipes in the ground

We know Council standards inside out, having even helped shape them. Our extensive experience forms the backbone of our approach, focusing on strong engineering solutions that respect nature.

We're all about clear communication and meeting deadlines. If we can't fit your schedule, we'll tell you upfront – no fluff.

Arawai Engineering water hydrant testing

Focus Areas

Our services & areas of expertise

Structure Planning

Detailed structure plan analysis and reporting for local government, including zoning, roading, 3 waters and ecology.

Water Supply Engineering

Modelling, design, scheme and pressure management and optimisation for municipal water supply entities.

Waste Water Engineering

Modelling and design of urban waste water networks and pump stations.

Stormwater Engineering

Modelling and design of private and public stormwater devices and networks. Modelling and analysis of stormwater catchments, and hydraulic and hydrologic analysis.

Roading

Road design for urban, rural and state highway.

3D Infrastructure Modelling

We employ cutting-edge tech to craft 3D models, enabling councils, developers, and iwi to visualize upcoming projects. Our output: an HTML-based 3D model accessible from any PC, fostering seamless online viewing.

Structure Planning

Our Structure Planning service evaluates the potential for transitioning extensive land zones from rural to commercial, industrial and residential. This comprehensive report guides councils, landowners, and developers by addressing infrastructure enhancements such as roading, sewer, stormwater, and water systems. We analyse infrastructure upgrades and advise on crucial elements like street design, stormwater ponds, and reserve land positioning. This instrumental tool informs Councils and Land Developers, and streamlines subdivision processes.

    • Peak flows and volumes for water demand and sewer disposal

    • Pipe upgrade recommendations for existing sewer and water reticulation

    • Core road network dimension/classification recommendations

    • Detailed Structure plan report

    • Structure plan maps

    • Recommended resource consent conditions

Arawai Engineering structure planning examples

Roading

We develop roading networks for structure planning and provide geometric road design for private developers, local government and Waka Kotahi. Using cutting edge design and visualisation software, we design roads to work in harmony with the environment and to comply with Waka Kotahi, Austroads, and Local Authority Standards.

    • High-level road hierarchy analysis

    • Road network layout, classification and recommendations

    • Road segment analysis

    • Horizontal and vertical geometry design

    • Engineering drawings and specifications

    • Contract documentation

    • Project management

Arawai Engineering Roading Services Taranaki

Water Supply Engineering

Utilising digital models, we design and develop water supply systems for municipalities and local government entities, from new schemes to network modifications, pressure zoning, and leakage reduction.

    • Detailed investigation and analysis

    • Pump design and specifications

    • Pressure reducing valve and pressure zone recommendations

    • Hydrant flow testing

    • Engineering drawings and specifications

    • Contract documentation

    • Project management

Arawai Engineering Water Supply

Wastewater Engineering

Utilising digital models, we design and develop wastewater disposal systems for private developers and local government entities, from new schemes to network modifications.

    • Waste Water Modelling report

    • Detailed investigation and analysis report

    • Pump design and specifications

    • Engineering drawings and specifications

    • Contract documentation

    • Project management

Arawai Engineering wastewater development

Stormwater Engineering

We carry out engineering infrastructure assessments and design for local government asset management.

We also design stormwater infrastructure for subdivisions, working closely with Iwi, and local government agencies. Out team assists with all aspects of the consent process to ensure compliance with the Te Mana o te Wai frameworks, NZ Standards, The District Plan, The Building Code, and Local Authority requirements.

    • Catchment analysis

    • Detailed stormwater design

    • HEC-RAS modelling

    • HEC-HMS modelling

    • Soakage device design

    • Stormwater reticulation design

    • Stormwater detention pond/wetland design

    • Stormwater management methodology/design report

    • Project management

Arawai Engineering stormwater analysis and planing

Have a project in mind?

Let’s get to work