HEC-HMS

Participants will gain a practical knowledge of methods for simulation of runoff from storm rainfall. The methods covered relate to the processing of historical and hypothetical (design-storm) rainfall data; estimation of losses (infiltration); transformation of rainfall excess to direct runoff with unit hydrographs; routing of flood waves; calibration of model parameters; and modeling of runoff from watersheds. Experience will be gained in applying the methods with the program Hydrologic Modeling System (HEC-HMS). Where possible, applications will emphasize hydrologic computations for dam safety.

Key Takeaways: 

• Methods to simulate runoff from storm rainfall.
• Estimating hydrologic abstractions and transforming excess rainfall using unit hydrograph theory.  
• Evaluating dam and reservoir performance during flood events.
• Running the HMS model on several real-world problems.  
• Estimating uncertainty in modeling runoff.  

Registration Rates:

Member Rate: $1,095
Non-Member Rate: $1,195

Registration Opening Soon!

Cancellation Policy:

All cancellations are subject to a $75 administrative fee.
Cancellations must be received by February 5, 2027. Cancellations made after February 5, 2027, will not receive a refund. 

PDHs Available:

21 PDHs are available for completing the seminar.
NY-licensed engineers will receive 21 PDHs for completing the seminar.

Attendance Policy:

Please note that this is a multi-day technical seminar. Even though it is being delivered in a virtual format, seminars require attendees to be present each day and to participate in the interactive course. Failure to attend each day may limit access to future components and completion. Only registered attendees can access the seminar, materials, and recordings. Professional development hours will only be recognized for the registered attendee. Additional people should not be sitting in the seminar without a valid registration. 

Virtual Meeting Requirements:

For this virtual seminar, you will need a computer, microphone, webcam, and internet connection. We HIGHLY recommend at least two screens to move between the presentation and the workshops. We will use the ZOOM Meeting platform along with the ASDSO Learning Center for this event. If you do not have the ZOOM Meeting application or cannot download it, you can use the web browser version. Additional details will be sent to attendees after registration and before the seminar begins.