Stormwater Drainage and Water Sensitive Urban Design

Effective and efficient stormwater management systems are essential to maximising the value of urban land. Due to the complexity of urban hydrology and hydraulics, we ensure that our studies are undertaken with a high level of attention to detail to provide our clients with an optimum solution.

We undertake hydrologic and hydraulic modelling studies using industry-standard software (such as XP-RAFTS, XP-STORM, URBS, MUSIC, TUFLOW, HEC-RAS etc.) to design a range of stormwater management infrastructure including open channels, trunk pipe systems and flood detention basins.

We have substantial experience in working for developers seeking to obtain development approval. We also work with local government to undertake small or large scale catchment planning studies.

WRM also has expertise in Water Sensitive Urban Design (WSUD) including development of policy and guidelines, as well as implementation of WSUD principles in infrastructure solutions for low and high density urban development. WRM’s work on the Fitzgibbon Chase development in Brisbane was recognised with the WSUD award from the Healthy Waterways Partnership in 2012.

Case studies

Tennant Creek Stormwater Investigation

Drainage characteristics in Tennant Creek are complex, particularly during large flow events

The key challenge was to develop an understanding of the drainage behaviour and limitations of the Tennant Creek network

Mackay Ring Road

Mackay Ring Road

A major infrastructure planning study for the Mackay Ring Road

The completed report considered all potential impacts including flooding and community concerns

An engineered waterway channel at Fitzgibbon


A comprehensive flood and stormwater management strategy for the Fitzgibbon Urban Development Area

The strategy maximised developable area while ensuring no adverse impact downstream

Drainage infrastructure

Bakers One

Trunk drainage assessment to support development opportunities

Developed an integrated suite of water quality and drainage infrastructure for the Bakers One catchment to facilitate future development

Landscaped low flow channel

Springfield Development

Flood and stormwater management for one of Australia’s largest urban developments

The adopted strategy maximised the developable area of the site

Redbank Motorway Estate location

Redbank Motorway Estate

Stormwater management plan for the proposed Redbank Motorway Estate

MIKE11 and TUFLOW modelling of the Brisbane River

Darebin Creek on Melbourne’s Northern Outskirts

Melbourne Water

Methodology to define the volume and timing of stormwater flows available for harvesting

Based on a novel approach to configuring the MUSIC hydrologic model

Other projects

JV Property Syndicates Pty Ltd v Connor O’Meara

Supreme Court, Queensland

Review of technical studies and preparation of expert evidence on alternative options for stormwater drainage design for a residential development site in Rockhampton.

Cooper Grace Ward Lawyers

Alice Springs Farms Area Flood Mapping Study

Two dimensional flood modelling of the Todd River downstream of Alice Springs to determine design flood levels including the impact of sediment transport.

Flood mapping for land use planning and emergency management.

Department of Planning and Infrastructure

Pacific Paradise Urban Development

Expert representation for Maroochy Shire Council.

Mediation with a developer regarding stormwater quality and flooding impacts of a proposed urban development. Related to an appeal in the Land and Environment Court.

Maroochy Shire Council

Brookwater Golf Course and Residential Development

Flood study, lake design and stormwater quality management plan for the prestige Brookwater development in Springfield.

Medallist AMP Golf Holdings