February 2020

Two-Dimensional Modelling Using HEC-RAS

Please Note
Registrants may register for Day 1 only, Day 2 and 3 only, or Days 1–3 as a package.

** Participants are required to bring their own laptop computer to the workshop.
Status: Advanced online registration is now closed. Please contact Jennifer Chan at [email protected] for inquiries.
Date: Wednesday, February 5, 2020 - Friday, February 7, 2020
Time: 8:00 AM–8:30 AM: Registration and Continental Breakfast, Day 1–3
8:30 AM–5:00 PM: Two-Dimensional Modelling Using HEC-RAS, Day 1–3
Location: Blue Horizon Hotel (Baker Arrowsmith Room), 1225 Robson Street Vancouver, BC
Presenter: Dr. Raymond Walton, PE,
WEST Consultants Inc.
Credit: 24 Formal Continuing Education (CE) Hours
Cost: Engineers and Geoscientists BC Member and EIT/GIT Early Bird Price:
Package Day 1–3: $1,195.00 + GST = $1,254.75 until January 22, 2020
Day 1: $419.00 + GST = $439.95 until January 22, 2020
Day 2 and 3: $899.00 + GST = $943.95 until January 22, 2020

Engineers and Geoscientists BC Member and EIT/GIT Regular Price:
Package Day 1–3: $1,425.00 + GST = $1,496.25
Day 1: $519.00 + GST = $544.95
Day 2 and 3: $1,099.00 + GST = $1,153.95

Non-Member Price:
Package Day 1–3: $1,425.00 + GST = $1,496.25
Day 1: $519.00 + GST = $544.95
Day 2 and 3: $1,099.00 + GST = $1,153.95

Student Member Price:
Package Day 1–3: $712.50 + GST = $748.13
Day 1: $259.50 + GST = $272.48
Day 2 and 3: $549.50 + GST = $576.98
Please Note:
  • Student Price is eligible for participants in Engineers and Geoscientists BC’s Student Program
  • If you are not an Engineers and Geoscientists BC registrant, and you do not already have an existing account, please proceed to creating a new account to create a profile before completing your event registration
  • For webinar sessions, the webinar login instructions will be made available 3 business days prior to the webinar date
  • A minimum number of registrations are needed by January 22, 2020 to proceed with this seminar. Please register early to avoid cancellation
  • All prices are subject to applicable taxes
Contact: Jennifer Chan | Senior Professional Development Coordinator
Direct: 604.412.4861
Toll Free: 1.888.430.8035 ext.4861
Fax: 604.639.8180
Email: [email protected]
This intensive, workshop-oriented, 3-day seminar will prepare the engineer and water resource professional to use the HEC-RAS computer program for modelling two-dimensional (2D) unsteady flow applications. Led by an expert from WEST Consultants with practical experience in hydraulic modelling, participants will learn how to approach and construct a 2D model for unsteady flow conditions, and to effectively view and analyze results.

The seminar includes a 1-day refresher on 1D unsteady-flow modelling, lectures on 2D flow theory, an introduction to the 2D capabilities and features of HEC-RAS, and procedures for creating a stable and calibrated 2D model. Workshops focus on giving students hands-on experience with building and pre-processing the computational mesh, performing offline and inline 2D projects, and using the built-in feature RAS Mapper to spatially analyze results.

The HEC-RAS modelling system was developed as part of the Corps of Engineers Hydrologic Engineering Center Next Generation software and replaces several existing programs including HEC-2, UNET, and HEC-6. HEC-RAS incorporates various aspects of 2D hydraulic modelling, including flow and water surface profile and computations within storage areas, and the interaction between 1D and 2D systems. Version 5.0 of HEC-RAS includes features in 2D open channel hydraulic analysis such as:

  • Two-dimensional flow analysis using the full St. Venant or diffusion wave equations in 2D;
  • Ability to perform a combination of 1D and 2D flow analysis in the same model; and
  • The use of unstructured or structured computational meshes for the 2D flow areas.

HEC-RAS is user friendly, computationally efficient, and runs within, and fully supports the Microsoft Windows environment. It uses the latest graphical user interface (GUI) technology for data entry, graphics, and display of program results. Complete context-sensitive help screens are available for every program feature and option. Software includes the following functions: file management, data entry and editing, hydraulic analyses, tabulation, and graphical displays of input and output data, reporting facilities, and online help.

Seminar Benefits/Learning Outcomes

  • Participants will be provided Course Notes and Workshop problems;
  • Learn how to use the US Army Corps of Engineers HEC-RAS (River Analysis System) computer program to model two-dimensional unsteady flow hydraulics;
  • Get an overview of two-dimensional flow theory and the differences between one-dimensional modelling;
  • Gain hands-on HEC-RAS experience by participating in practical computer workshops;
  • Understand how to develop a stable and calibrated two-dimensional flow model;
  • Obtain valuable insights in methods for minimizing computation errors and instabilities for two-dimensional unsteady hydraulic models; and
  • Learn from real world projects and applications.

Who Should Attend

Consulting engineers, water resource planners, engineers employed by local, state, or federal government agencies. Participants should have some experience in floodplain hydrology and hydraulics, and sound experience in HEC-RAS 1D steady and unsteady flow computer modelling. This course will not cover the basics of 1D modelling using HEC-RAS. They should also be able to follow simple computer instructions.


Dr. Raymond Walton, PE,

West Consultants Inc.

Raymond Walton is the Lead Water Resources Engineer in the Bellevue, Washington, office of WEST Consultants. Dr. Walton has over 40 years of experience directing water resources studies throughout the US and abroad. He is a nationally-recognized expert in multi-dimensional modelling of surface water, groundwater, and water quality systems. Prior to joining WEST, he worked at the Hydraulics Research Station in the UK, taught at North Carolina State University, and spent 15 years with large nationwide consulting engineering firms. He has written over 50 professional papers in the fields of hydraulics, environmental engineering, groundwater and surface water hydrology, and instructs HEC-RAS nationwide. He has worked with ASCE and ASTM committees on Environmental Software and wetlands monitoring developments, and reviews technical papers for several ASCE journals. Dr. Walton chaired ASCE’s International Water Resources Conference in Seattle in August 1999, was the Technical Chair for the 2005 ASCE/EWRI conference in Anchorage, and chaired the 2014 ASCE/EWRI Congress in Portland, Oregon. He was named the 2019 Outstanding Practitioner by the American Academy of Water Resources Engineers.

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