Water Engineering Design

Since 2010, Geoffrey O’Loughlin has presented a seven day-course on Water Engineering Design, for NSW Roads and Maritime Services, covering the elements of hydrology, hydraulics and design practice that relate to road drainage design.

This course has been attended by Roads and Maritime Services engineers, technical officers, engineers in training and invited consultants.  Now, places are available for others. It is suitable for engineering students, practising engineers and technical officers wishing to gain competence in road drainage design, or to refresh their knowledge.

The 2017 course will be presented in Sydney in a 5 day format, with 2 blocks. Block A will cover hydrology and hydraulics and Block B will cover design procedures.  The content of the course, shown below, will equip participants to understand and use hydrological methods and models, to employ hydraulic models and to carry out design of cross and transverse drainage for roads.  It provides many examples and exercises with answers.  The computer models RORB, HEC-RAS, DRAINS and HY8 are featured.

The content of this course is as follows:


Provides an overview of engineering hydrology and the estimation of design floods that act as inputs to water engineering design processes. The main topics to be covered are:


Provides an introduction to hydraulics, and methods applicable to piped systems, open channels and detention storages. The main topics are:

Block B

Provides an overview of design processes applied to road-related projects, considering cross-drainage (culverts) and longitudinal drainage (swales and pipes). Other drainage elements such as detention storages and treatment devices are considered. The main topics are:

  • Introduction to design and design decisions;
  • Water engineering design for roads;
  • Culvert design, HY8;
  • Culvert blockage and erosion prevention;
  • Pipe system design using DRAINS;
  • Road drainage design exercises;
  • Other issues – culvert blockage and erosion prevention, subsurface drainage, stormwater treatment, flood impacts, review of bridge hydraulics and scour; and
  • Checking and reviewing documentation.

Available Workshops