
ACO has an established Technical Services Department with many years experience advising on surface drainage in civil infrastructure applications.
This free service is offered with no obligation and is supported with extensive, high-quality information, brochures and technical documentation. Services include advice at project design stage through to on-site support as required.
askACO is a corporate initiative designed around advice and industry education. Services are offered free of charge and obligation and are design to compliment (not substitute) professional engineering advice.

ACO can provide accurate channel recommendations with its proprietary drainage design software.
‘Hydro’ is a purpose written, hydraulic design program modelled on differential calculus for non-uniform flow in open channels. The program was further refined with empirical data, following a series of experiments modelling lateral intake into trench drains.
askACO to propose the correct size drain

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To learn more about ACO’s design approach, click here
ACO can provide accurate grate recommendations with its proprietary software.
The hydraulic intake capacities of ACO’s grates have been independently measured by experimentation at the UNSW under varying flow rates and catchment approach slopes.
askACO to propose the correct inlet size grate

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To learn more about ACO’s design approach, click here
To make specification, ordering and site work easy, ACO can tailor a layout using CAD and other bespoke programs to illustrate (in plan and elevation) required positions and layouts of trench runs. A bill of materials is also produced.
To learn more about ACO’s design approach, click here.
askACO to propose the correct run layout and parts

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To download a pdf of ACO’s services, click here.
ACO can offer a comprehensive solution where the above services are combined to assist designers at the preliminary and detailed design stages of the project with an emphasis on:
- Minimising earthworks and pipework.
- Utilising existing pavement levels and drainage infrastructure.
- Integrating other water management requirements, for example OSD, rainwater harvesting and other WSUD initiatives.
ACO recommendations include professional documentation, CAD drawings and product data sheets.
Examples of a costly vs. optimum drainage layout:
![]() Costly inefficient drainage layout for an undulating pavement | ![]() Optimum drainage layout for a flat, level pavement |
Download ACO’s White Papers (Endorsed by Engineers Australia)
- Take the guesswork out of trench drainage selection, click here
- Drainable pavements for improved walkability, click here
Book a CPD session, click here








