Water Engineering

Hydrological Modelling and Stormwater Design You Can Rely On

New Zealand is lucky to have such abundant water.

In a geotechnical context, it is essential to consider the ongoing impact of rainfall, nearby watercourses, and the water table on the feasibility and longevity of your land use scenario.

Hydrology and stormwater naturally fall within the scope of a Geotechnical Engineer’s expertise. This extends to watercourse erosion control, overland flow management, and rainwater collection and storage.

30+ Years’ Experience

Proven geotechnical expertise built over three decades of investigations, design, and consulting across New Zealand and internationally.

Central & Lower North Island Coverage

Reliable service spanning the Bay of Plenty, Waikato, Manawatū, Hawke’s Bay, and Wellington regions.

Standardised Project Pricing

Clear, consistent pricing across all foundation investigations, making it easier to plan, budget, and move forward with confidence.

Specialist Geotechnical Solutions

Dedicated, data-driven analysis and consulting delivering accurate insights tailored to your site and project requirements.

Water Engineering Services

Soil Eng are capable investigators and designers of hydrological systems and their control structures.

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Water Pipe Networks

Design and assessment of efficient water pipe networks ensuring reliable distribution, flow control, and long-term system performance.

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Hydrological Calculations

Accurate hydrological modelling and calculations to evaluate rainfall, runoff, and drainage impacts for safe, sustainable land development.

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Calculating Surface Runoff

Precise surface runoff calculations to predict water flow, prevent flooding, and support effective drainage design across varied terrain.

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Designing Structures for Erosion Control

Engineering design of erosion control structures that stabilise slopes, protect waterways, and prevent soil loss.

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Designing Structures for Water Hammer

Specialist design of water hammer control structures protecting pipelines and systems from pressure surges, ensuring operational safety and reliability.

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Stormwater Design

Comprehensive stormwater management design that reduces flooding risks, controls flow, and supports regulatory compliance across residential and commercial developments.

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Rain Tank Design

Efficient rainwater tank design and sizing for collection, storage, and reuse, promoting sustainable water management.

“Soil Eng provides expert water engineering solutions that help manage water flow, protect land, and ensure lasting results. We are proud to serve Tauranga, Hamilton, Wellington, and the wider Central and Lower North Island regions”

Alwyn Strauss, Director

Build on certainty

Partner with Soil Eng for data-driven geotechnical solutions backed by 30+ years of proven experience

Detailed soil logging and sample recording performed by Soil Engineering Ltd.

Expert geotechnical engineering results

Frequently Asked Questions

Hydrology helps assess how water, through rainfall, runoff, and groundwater, affects ground stability, erosion, and long-term site performance.

 

Soil Eng offers services including stormwater design, runoff calculations, water pipe network design, erosion control, and rainwater storage solutions.

 

Poor stormwater management can lead to flooding, erosion, and structural issues, so proper design is essential to protect your site and ensure compliance.

Yes, Soil Eng designs tailored solutions for erosion control, overland flow management, and water infrastructure to suit your site conditions.

Soil Eng proudly services the Bay of Plenty, Tauranga, Hamilton, Waikato, Manawatū, Hawke’s Bay, and Wellington regions.

testimonials

Hear From Our Clients

We value our client relationships and work diligently to achieve the best outcomes for projects and properties.

Our feedback speaks for itself:

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On Point Distribution Partners Ltd profile picture
On Point Distribution Partners Ltd
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Alwyn and the team at soil eng did a full geotechnical report on our proposed subdivision. They were extremely knowledgeable and professional, and communication was very good. They completed the required report when promised and did it all at a reasonable price which we were more than happy to pay. I strongly recommend them if you’re looking to have geotech work done.
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Celtic_Coconut profile picture
Celtic_Coconut
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Excellent communication and attention to detail. Alwyn and his team went the extra mile to ensure everything was accurate and provided solutions to issues if they arose. Would definitely use them again.
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Dutch Dale profile picture
Dutch Dale
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Good to deal with , and was quick with his work
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Myles McKeefry profile picture
Myles McKeefry
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Alwyn was a pleasure to deal with. Extremely knowledgeable and helpful with our pre-consent requirements. He was always available and very prompt with queries. Highly recommended
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Phillip Aaron Hume profile picture
Phillip Aaron Hume
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Alwyn has Been fantastic to deal with throughout the geotech process. He was quick to respond and completed the report in a timely manner. I highly recommend Soil-Eng
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Vicki Jamieson profile picture
Vicki Jamieson
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Alwyn was very quick from the time we rung for a geotech report to the delivery of the report. We highly recommend Soil Eng. Thank you Alwyn 😊
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Margaret Gray profile picture
Margaret Gray
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Alwyn was extremely professional. Very helpful and thorough. Very prompt and I would highly recommend him.
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Maxwell Sedarat profile picture
Maxwell Sedarat
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Alwyn did an excellent job. He has great communication and was very helpful during the process. I would definitely use Alwyn again for any future projects.
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John Sanderson profile picture
John Sanderson
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Alywn was great to work with. He carried out a pre purchase liquifaction assessment and report on a very short timeframe to meet our deadline. Soil Eng was also the most cost effective option available. Excellent work thankyou.