This intensive three-day workshop will provide a comprehensive overview of the steady flow capabilities of the current version (V4.0) of the U.S. Army Corps of the Engineers’ Hydrologic Engineering Center River Analysis System program (HEC-RAS).
Day 1 will begin with a review of the program’s theoretical basics, modeling capabilities, and limitations. The program will continue with an explanation of program and project start-up, data input, and the various forms of output reporting. The day will conclude with an analysis example problem that will highlight such modeling decisions as cross section location and alignment, loss coefficient selection, and floodway determination.
Day 2 of the workshop will focus on an overview of the program’s capabilities, data requirements, and limitations for modeling bridge and culvert flow. It will also include a discussion of the various types of flow encountered at bridges and culverts and different modeling approaches available in the program. Day 2 will also include analysis of a second example problem that will illustrate basic bridge and culvert modeling, including further guidance on selecting cross-section locations, loss coefficients, ineffective flow areas and overall computational approach.
Day 3 of the workshop will conclude with presentations and example problems on computing floodways and flood fringe volumes. This day’s program will also include a workshop review and a question and answer session.
In addition to the presentations, a workbook and electronic copies of example problems will be provided to all attendees, who are encouraged to bring their own laptop computers (with HEC-RAS 4.0 installed) to the workshop to directly participate in the various example problems. Copies of Version 4.0 of HEC-RAS can be downloaded from the HEC website (www.hec.usace.army.mil).
Attendees will learn to:
• Understand the basic theories of open channel, floodway, and bridge and culvert flow used by HEC-RAS
• Understand HEC-RAS capabilities, limitations, input needs, sources and output options
• Select appropriate bridge and culvert modeling methods
• Create and execute a HEC-RAS Project
• Identify input errors and modeling problems to help insure “accurate and reasonable” program output
Continuing Education Credits:
This program has been approved for 1.8 CEUs and 18 credit hours for New York State licensed professional engineers.