Our hydraulics engineering expertise includes efficient and cost-effective stormwater drainage systems for housing, commercial, industrial buildings and units.

We engineer systems that adhere to Australian standards and local council guidelines, specifically:

  • Stormwater
  • On-site retention (OSR) and On-site detention (OSD)
  • Grey water and water reuse systems
  • Flood study
  • Flood risk management report
Stormwater & Drainage Design
Newtown Stormwater & Drainage Design
Hunters Hill House
Hunters Hill House
Rainwater Tank
Rainwater Tank
At Ross Engineers, we specialise in civil engineering and hydraulic engineering. Our team provides expert design and documentation for driveways, vehicle access (swept paths), and kerb and gutter systems. We navigate the complexities of Australian Standards and local council requirements to deliver safe, durable, and fully compliant infrastructure solutions. Our team of hydraulic engineers in Sydney provides expert stormwater design, stormwater drainage system design, and residential stormwater drainage solutions that are safe, efficient, and compliant with regulations. We deliver stormwater plans, on-site stormwater detention and retention systems, flood studies, and flood risk management reports, ensuring every property is protected and fully compliant. Our hydraulic consultants integrate these systems seamlessly into the design of your home or building, offering discreet and practical solutions for stormwater drainage. Ross Engineers has worked on projects ranging from luxury family homes to urban infill developments, providing stormwater drainage plans, civil stormwater engineering, and hydraulic services design that combine functionality with visual integration. Whether you need a stormwater engineer Sydney, a hydraulic engineer residential Sydney, or a hydraulic engineer near me, we provide professional guidance, certified designs, and reliable solutions. Contact Ross Engineers today to discuss your hydraulics and stormwater engineering requirements and ensure your project benefits from expert stormwater design engineers and hydraulic consultants Sydney.
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Frequently Asked Questions

What does a hydraulics engineer do?

A hydraulics engineer designs the water management systems for a building or site - stormwater drainage, on-site detention and retention, greywater reuse, and the civil works (driveways, vehicle access, kerb and gutter) that tie into them. The goal is a system that's compliant, cost-effective, and won't cause problems for the site or its neighbours.

What is on-site detention (OSD) and on-site retention (OSR), and do I need it?

OSD temporarily holds stormwater on your site during heavy rain and releases it slowly, reducing the load on council drainage. OSR captures and reuses stormwater on-site instead of releasing it. Most councils require one or the other for developments above a certain size, or where the site sits in a catchment with known drainage constraints - we can confirm what applies to your property.

When is a flood study or flood risk management report required?

These are usually required when a property sits within a council-mapped flood-prone area, or when a development could affect flood behaviour on neighbouring land. A flood study assesses how water moves across the site; a flood risk management report sets out how the design responds to that risk. Councils can require both as part of a DA in flood-affected zones.

Can you design greywater and water reuse systems?

Yes. We design greywater and water reuse systems for residential, commercial, and industrial projects, sized and specified to meet Australian standards and local council requirements.

Do you handle driveway and vehicle access design?

Yes. We prepare the design and documentation for driveways and vehicle access, including swept path analysis to confirm vehicles can safely enter, exit, and manoeuvre on site - a common council requirement for DA approval.

What's involved in kerb and gutter design?

Kerb and gutter works need to meet both council specifications and the site's stormwater strategy. We design and document these as part of the broader civil and hydraulic scope, so drainage, access, and council standards all line up.

What types of projects do you work on?

Everything from single residential homes to commercial, industrial, and multi-unit developments - including luxury homes, urban infill, and larger civil works.

Do your designs meet council and Australian Standards requirements?

Yes - every hydraulics and civil design is prepared to comply with the relevant Australian Standards and the specific requirements of the local council the project falls under.
What does a hydraulics engineer do?
A hydraulics engineer designs the water management systems for a building or site - stormwater drainage, on-site detention and retention, greywater reuse, and the civil works (driveways, vehicle access, kerb and gutter) that tie into them. The goal is a system that's compliant, cost-effective, and won't cause problems for the site or its neighbours.
What is on-site detention (OSD) and on-site retention (OSR), and do I need it?
OSD temporarily holds stormwater on your site during heavy rain and releases it slowly, reducing the load on council drainage. OSR captures and reuses stormwater on-site instead of releasing it. Most councils require one or the other for developments above a certain size, or where the site sits in a catchment with known drainage constraints - we can confirm what applies to your property.
When is a flood study or flood risk management report required?
These are usually required when a property sits within a council-mapped flood-prone area, or when a development could affect flood behaviour on neighbouring land. A flood study assesses how water moves across the site; a flood risk management report sets out how the design responds to that risk. Councils can require both as part of a DA in flood-affected zones.
Can you design greywater and water reuse systems?
Yes. We design greywater and water reuse systems for residential, commercial, and industrial projects, sized and specified to meet Australian standards and local council requirements.
Do you handle driveway and vehicle access design?
Yes. We prepare the design and documentation for driveways and vehicle access, including swept path analysis to confirm vehicles can safely enter, exit, and manoeuvre on site - a common council requirement for DA approval.
What's involved in kerb and gutter design?
Kerb and gutter works need to meet both council specifications and the site's stormwater strategy. We design and document these as part of the broader civil and hydraulic scope, so drainage, access, and council standards all line up.
What types of projects do you work on?
Everything from single residential homes to commercial, industrial, and multi-unit developments - including luxury homes, urban infill, and larger civil works.
Do your designs meet council and Australian Standards requirements?
Yes - every hydraulics and civil design is prepared to comply with the relevant Australian Standards and the specific requirements of the local council the project falls under.