ARR Course #5: Design Estimation

What has changed in design flood estimation?

(Course code: OD-21-1-005)

In this 3-hour intensive training course, our experts will step through several methods for design flood estimation and compare the estimates, and well as cover the selection of a design event.

Format: 3-hour course + pre/post-course materials via the learning platform with access for FOUR months

Cost: AUD$195 (includes GST) or combine with the full ARR Series and save 25%

Contact: Joel Voortman

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Rory Nathan

University of Melbourne

Rory is a Professor at the University of Melbourne and has over 40 years’ experience in engineering and environmental hydrology, mostly in industry, and now focuses his time on research and teaching... Read more

David Stephens


David is an associate of HARC, and has nearly 15 years experience in design flood hydrology, hydraulic modelling and dam safety risk assessment. David’s professional experience started with the B... Read more

Matt Scorah


Matt has over five years of experience in hydrology and water resources modelling. Since graduating from the University of Melbourne in 2013, Matt has been heavily involved in the ongoing development ... Read more

Andrew John

University of Melbourne

Andrew is a PhD candidate at the Environmental Hydrology and Water Resources Group at the University of Melbourne, and environmental engineer at Alluvium Consulting with a strong passion for sustainab... Read more



Webinar: ARR Essentials

Modelling - general knowledge

15 Apr 2021


Full Series | Register for the ENTIRE series and be rewarded with a 25% discount and 4 months unlimited access to all courses in the series.

Or register now for this individual course.

Throughout the course attendees will be shown practical working examples, learning hands-on how to use and apply different rainfall related design inputs, including:

Key concepts/topics covered
• overview of key changes
• different design estimation methods
• comparison of results from different methods

Learning objectives
• selection of a design event
• what are the methods available


The course is delivered through 5 sequential units via the learning platform

  • 3-hour recording of the course
  • Pre-and-post-course materials to go through via the learning platform.
  • Course Manual.


Australian Rainfall and Runoff (ARR) is the national guideline document, data and software suite for the estimation of design flood characteristics in Australia.

Originally published in 1958 by Engineers Australia, ARR 4th edition was released in 2019 with support of the Commonwealth Government of Australia and Geoscience Australia. With national applicability, balancing the varied climates of Australia, it is a pivotal framework to the safety and sustainability of Australian infrastructure, communities and the environment. The information and the approaches presented in Australian Rainfall and Runoff are essential for policy decisions and projects involving:

  • infrastructure such as roads, rail, airports, bridges, dams, stormwater and sewer systems;
  • town planning;
  • mining;
  • developing flood management plans for urban and rural communities;
  • flood warnings and flood emergency management;
  • operation of regulated river systems; and
  • estimation of extreme flood levels.

ARR 4th edition is a major update to guidelines, the first in 30 years and consists of The Guidelines and associated Data hub and software.

What’s Included

The ARR On-demand Training Series is designed to be taken individually. Each course is highly practical and hands-on (ie; not simply a PowerPoint of lectures), turning ARR policy and research into practice.

To provide the best-desired learning outcomes, setup in a quiet space with dual monitors (ie one screen with the session recordings and the other with the software/exercise that attendees can work on simultaneously). The courses are not designed for a board-room setup.

Dependent on the course, attendees will be interacting and developing models, learning software, working through exercises and case studies. Where relevant, attendees will also have homework between courses.

What’s included within each of the 8 On-demand courses in the series:

  • 3-hours of session recordings to view as many times as required within the allocated time;
  • Ability to ask questions to the presenters at anytime through the learning platform;
  • PDF manual of the course. The manual is recommended for ongoing use;
  • Any working models/ software’s necessary as per instructions in individual course, downloaded from the learning platform before starting the session recordings;
  • Some courses have Exercises / homework to complete between courses;
  • Pre-reading and viewing materials;
  • Ability to access all the online course materials within the allocated time. The pre-readings and manual are available for ongoing learning;
  • Attendees earn CPD hours/points (ie with Engineers Australia) for at least 5 hours per course (therefore 40+ hours for the Series).

Pre-course reading and video watching is encouraged. There is also an opportunity to tailor the sessions to your direct questions via the initial survey.

A good internet connection and software and downloads as described in the learning platform. To provide the best-desired learning outcomes, set up in a quiet space with dual monitors (ie one screen with the live session and the other with the software/exercise that attendees can work on simultaneously). The courses are not designed for a board-room setup.

On completion of the course, attendees will be issued with a Certificate of Participation.

Register now!


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Frequently Asked Questions (FAQ)