#8 H&H Essentials: Flood Hazard, Scour and Sedimentation

Australian Water School Apply hydraulic forces to buildings, vehicles, hydraulic structures and channel banks

Target Audience

The course is designed to cater for engineers and non-engineers alike, with a range of provided background materials that make the course suitable for both beginners and experienced professionals seeking a refresher for the underlying concepts behind hydrologic and hydraulic modelling applications.


Working in collaboration with industry and academic experts the Australian Water School (AWS) has created the Hydrology and Hydraulics (H&H) Essentials training series, comprised of 8 individual intensive 3-hour courses with each course flowing into the next enabling attendees to build their skills piece by piece through every course. This course is part of AWS H&H Essentials series (click here to view the ENTIRE series).

This 3-hour intensive training course will include the computation of flood hazard zones and mitigation measures for reducing flood hazard and scour potential. Attendees will identify areas with scour concerns based on hydraulic results and develop stable channel designs to resist erosion.

Take sessions anytime, at your own pace, with unlimited course access for 4 months. Attendees earn CPD hours/points with professional organisations for at least 5 hours per course (therefore 40+ hours for the series).

Key Concepts/Topics

  • Underlying principles of incipient motion
  • Computation of flood hazard
  • Critical thresholds for people, vehicles, and buildings
  • Velocity versus shear-based approaches for riprap sizing
  • Techniques for estimating bridge scour and bend scour
  • Watershed sediment yield
  • Sediment and debris pond design

Learning Objectives

Throughout the course attendees will be shown practical working examples, learning hands-on how to use and apply different equations and approaches for determining particle motion, leading to an increased understanding of confidence limits and risks associated with the application of hydraulic results to erosion countermeasures and stable channel design. By the end of the course, attendees will learn:

  • How to identify potential erosion zones and high hazard areas
  • How to prevent erosion with countermeasures
  • How to size sediment basins