Expert Hydraulic Modelling Services

Flood Smart Engineering provides hydraulic modelling services throughout South East Queensland, supporting flood assessments, overland flow assessments, development applications and building applications.

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What is Hydraulic Modelling?

Hydraulic modelling uses advanced computer software to simulate how water moves across a site during flood and storm events. By assessing flood levels, depths, velocities, hazards and overland flow paths, hydraulic modelling helps identify development constraints, support council approvals and inform engineering design.

The Applications of Hydraulic Modelling

Hydraulic modelling is commonly used to support the following development and approval requirements:

  • Flood Impact Assessments to determine whether a proposed development will adversely affect neighbouring properties or surrounding flood behaviour.

  • Flood Immunity Assessments to establish minimum floor levels and demonstrate compliance with council flood planning requirements.

  • Overland Flow Assessments to determine flood levels, depths, velocities and hazards where council flood information is unavailable.

  • Development Applications (DA) requiring flood-related assessment against council planning schemes and flood overlay codes.

  • Building Applications (BA) where flood levels, flood immunity or overland flow conditions must be assessed prior to construction.

  • Subdivision, Commercial and Industrial Developments requiring detailed flood modelling to support engineering design and council approval.

  • Stormwater and Flood Management Design including the assessment of drainage systems, detention basins and flood mitigation measures.

TUFLOW hydraulic modelling showing flood depths, overland flow characteristics and site-specific flood behaviour for development assessment.

TUFLOW Hydraulic Modelling

Flood Smart Engineering utilises TUFLOW hydraulic modelling software to simulate flood behaviour and overland flow characteristics for a wide range of developments throughout South East Queensland. TUFLOW is one of Australia's leading hydraulic modelling platforms and is widely accepted by councils, government authorities and engineering consultants for flood-related assessments.

Hydraulic modelling allows us to simulate how water moves across a site during flood and storm events, providing detailed information that is often unavailable through council flood mapping or property reports. This information can be critical in understanding development constraints and identifying practical engineering solutions.

Using TUFLOW hydraulic models, we can assess:

  • Flood levels

  • Flood depths

  • Flow velocities

  • Flood hazards

  • Overland flow paths

  • Flood extents

  • Flood impacts on neighbouring properties

  • Flood immunity requirements

These site-specific results are commonly used to support Flood Impact Assessments, Flood Immunity Assessments, Overland Flow Assessments, Development Applications (DA) and Building Applications (BA).

Our hydraulic models can be developed using a range of available information including survey data, council flood studies, terrain models, stormwater infrastructure information and site-specific design details. The modelling process allows multiple flood scenarios and development options to be assessed, helping to optimise project outcomes while maintaining compliance with council planning requirements.

Whether assessing a house raise, subdivision, commercial development, industrial facility or large-scale residential estate, TUFLOW hydraulic modelling provides the detailed flood information required to support engineering design and council approval.

TUFLOW hydraulic modelling output illustrating flood behaviour, drainage infrastructure and flood impacts for a development assessment.

Hydraulic Modelling Across South East Queensland

Flood Smart Engineering provides hydraulic modelling services throughout Brisbane, Logan, Gold Coast, Ipswich, Moreton Bay and Sunshine Coast. Our experience across multiple council areas, including Brisbane City Council, Logan City Council, City of Gold Coast, Ipswich City Council, Moreton Bay City Council and Sunshine Coast Council, allows us to understand local flood mapping, planning scheme requirements and flood-related development constraints.

Learn more about flood assessments, flood immunity requirements and hydraulic modelling within your local council area:

The Benefits of Hydraulic Modelling

Hydraulic modelling provides detailed insight into how flooding and overland flow may affect a site, allowing informed decisions to be made during the planning, design and approval stages of a development.

Key benefits include:

  • Determine Site-Specific Flood Levels

    Hydraulic models can accurately predict flood levels, depths and flow paths across a site, providing critical information for development planning and design.

  • Support Council Approvals

    Hydraulic modelling is commonly used to support Development Applications (DA), Building Applications (BA), Flood Impact Assessments and Flood Immunity Assessments.

  • Identify Development Constraints Early

    Understanding flood behaviour early in the project helps identify potential constraints, reducing redesign costs and improving development feasibility.

  • Assess Flood Impacts

    Hydraulic models can determine whether a proposed development may adversely affect neighbouring properties or surrounding flood behaviour.

  • Demonstrate Flood Immunity

    Site-specific modelling can establish minimum floor levels and demonstrate compliance with council flood planning requirements.

  • Improve Development Opportunities

    Detailed hydraulic modelling can identify practical engineering solutions that maximise site utilisation while effectively managing flood risk.

Frequently Asked Questions