HalfMoon Education Inc. Knowledge Gets You There

Presenter: Chris Naidu, PE

Recording Date:

Recording Location: Online

Type: USB MP3+Manual

Product Code: 17389

Product Number: 20 USHECHM1 7 23 USMB JB - 20 USHECHM2 7 24 USMB J

State-Specific Continuing Education Info:


This audio recording is approximately 6 hours in length and is available for $279 (including shipping). Please refer to specific state licensing rules or certification requirements to determine if this learning method is eligible for continuing education credit.

How to Use

HalfMoon will mail you these materials via USPS. Please allow 5 weeks from the date of purchase to receive your product. If the live seminar is in the future, please allow 5 weeks from the date of the live seminar.

The USB+PDF package includes either an Mp3 audio recording of a live seminar, or video recording of a live webinar on a USB thumb drive along with a PDF file of the manual that was distributed at the seminar/webinar. The manual contains written materials prepared by the seminar speaker(s).

The webinar video recording requires completion of a follow-up quiz with 80% or greater accuracy (multiple attempts allowed) in order to download a certificate of completion for the program. The acceptance of self-administered continuing education activities varies widely between states and professions. Before undertaking any self-study effort, you should review the rules of your licensing/certifying entity.
The Mp3 audio recording contains embedded number codes, which you are required to document and return to HalfMoon if you wish to obtain a certificate of completion for the program. The acceptance of self-administered continuing education activities varies widely between states and professions. Before undertaking any self-study effort, you should review the rules of your licensing/certifying entity.

HalfMoon Education guarantees its products. The self-study products are recorded from a live seminar and there are circumstances where an audio recording is not available. HalfMoon will contact you and issue a full refund if the product you ordered is not available. If you are not happy with a product you receive, you can return the product for a full refund. However, refunds will not be issued if completion certificates are requested.


Day One, Thursday, July 23, 2020
11:00AM - 2:30PM CDT (including a 30 minute break)
Introduction, History, and Development of US Army Corps HEC-HMS Software
     Brief history applications of HEC-HMS
     Computational categories

Basic Hydrologic Concepts
     The hydrologic cycle and HEC-HMS user interface
     Input, output

Loss Rates
     Loss computation assumptions and methods
     Accounting for urbanization
     Selecting a loss method and estimating parameters

Unit Hydrographs and Rainfall/Runoff Transformation
     Assumptions of the unit hydrograph
     Derivation and application of the unit hydrograph
     Selecting a unit hydrograph method and estimating parameters

Day Two, Friday, July 24, 2020
11:00AM - 2:45PM CDT (including a 30 minute break)

     Storm distributions
     Hypothetical vs. historical storms
     Sources of precipitation data

Hydrograph Routing
     Purpose, importance, and effects of hydrograph routing
     Routing methods
     Diversions and returns

     Purpose, importance, and effects of reservoir routing
     Types of reservoirs and detention
     Reservoir routing input and output

Calibration and Optimization
     Observed data input
     Parameters to be calibrated/optimized
     Calibration/optimization setup

Using HEC-HMS in Design
     Design example walkthrough

Webinar Instructions

Each webinar session earns continuing education credit and can be registered for individually. All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion will be provided for each webinar attended and will be sent via email in PDF form about five business days after the conclusion of the series.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements: 
Windows 7 - 10 or Mac OSX Mavericks (10.9) - macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection:
 Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at www.gotowebinar.com


Chris Naidu, PE

Water Resources Civil Engineer, Senior Project Manager at RESPEC

Mr. Naidu has more than eight years of experience in drainage and flood control projects throughout New Mexico. His experience includes preparation of drainage management plans (DMP), hydrologic analysis, hydraulic analysis of flood control structures, sediment transport, and scour analysis for unlined arroyos and bridge structures. Using modeling/analysis software, Mr. Naidu produces high-quality hydrologic and hydraulic models. He has a proven record of preparing easy-to-understand reports and corresponding maps and figures. He has prepared hydrographs and analyzed storm drains, weirs, pump stations, and detention/surge ponds. Additional skills include preparation of plan specifications, bidding and construction plans, cost estimates, and bidding services. He is familiar with Arc Geographic Information System (ArcGIS); Hydrologic Engineering Center (HEC) Hydrologic Modeling System, HEC Geospatial Hydrologic Modeling Extension (geoHMS0), HEC River Analysis System, US Environmental Protection Agency Storm Water Management Model (EPA SWMM), StormCad, and CulvertMaster.