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Hydrology 101 (For Those Who Skipped It In College)


This course is the first installment in our Surface Water Webinar Series—others include “Hydraulics 101,” “Fluvial Geomorphology 101,” and “Stream Restoration Basics & Techniques.” Sign up now for all four and save nearly 10% while earning 8 PDH / 0.8 CEU!

At a loss when hydrologic engineers start throwing out certain industry terms, such as flood return interval, antecedent moisture condition, initial abstraction, etc? As a professional working with these technical individuals and their reports, it is crucial that you fully understand where they are coming from.

Join two-time former IECA President and returning speaker Dr. David T. Williams for this live, educational, two-part webinar exploring the concepts, terms, and analyses behind hydrology and the basis of hydrologic studies.

  • Hydrology 101, Part I
    We will discuss the hydrologic cycle, common terms, frequency analysis (how do you come up with the 100-year storm?), sources and use of precipitation data, and developing hypothetical (synthetic) storms for use in designing flood control projects.
  • Hydrology 101, Part II
    Moving beyond the basics, we will delve into advanced topics and how the information gleaned therein is essential in order for hydraulic engineers to develop their designs. Such topics include hydrologic losses, determining runoff, developing a hydrograph, and routing the channel downstream.

Learning Objectives
Attendees can expect the discussion and education of the following learning objectives:

  • Learn the fundamentals of the hydrologic cycle.
  • Understand the meaning of hydrologic terms and how they are used in hydrology.
  • Identify how rainfall information is used to develop a flood hydrograph.
  • Discover how hydrologists determine the hypothetical frequency (such as the 100-year storm) of rainfall events.
  • Examine how rainfall information is transformed into a runoff.
  • Explore the procedures used to develop a hydrograph: its shape, volume, and peak discharge.
  • Discern how hydrographs are developed for areas that do not have rainfall information.
  • Comprehend the procedures used to determine how the hydrograph changes as the hydrologist tracks the flood downstream.

Train Your Team
Get the whole team trained! We offer additional savings if you register as a group. For group pricing information, contact us at

* Presentations are scheduled for approximately one hour with a 15-20 minute question and answer session to follow. Presentation may exceed scheduled time. 
* Each state and certification agency has different requirements; it is your responsibility to know what they are. Note that 1 PDH = 0.1 CEU.
* Purchase of this course allows you access to the presentation(s) for 6 months from the order date.

On-Demand Webcast
Session: 3 H 0 M
Lectures: 2
Credits: 2 PDH / 0.2 CEU

On-Demand Webcasts > Stormwater ($129.00)


Special Group Pricing Available


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