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US Army Corps of Engineers HEC-RAS

Floodplain Modeling and Analysis (6.6)

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Learning Path Courses:

Floodplain Model Setup

Floodplain Model Setup Course Introduction

This course continues the HEC-RAS Fundamentals Course and is designed to provide the remaining knowledge required to run hydraulic simulations effectively. While the fundamentals course covered the basics of HEC-RAS, this advanced module focuses on preparing and setting up the model to ensure it is ready for computation. From land cover and soil layers to computational settings and geometry management, this course covers the essential elements needed for accurate and reliable simulations.

Throughout the course, you will learn how to define infiltration parameters based on land cover and soil groups, apply SCS methods, and manage unsteady flow data, including hydrographs and rainfall inputs. Additionally, we will explore techniques for comparing water inputs, managing geometry associations, and optimizing plan layouts. To refine your model setup, advanced topics such as computational settings, tolerance adjustments, and Courant-based computation intervals will also be covered.

By the end of this course, you will have everything in place to confidently compute your HEC-RAS simulations. You will gain expertise in defining hydrologic inputs, refining model geometry, and setting up simulations with precise computational parameters to ensure accurate results. This course bridges the gap between fundamental knowledge and practical application, enabling you to complete a fully functional HEC-RAS model ready for analysis.

Course Objectives

The material presented in this course will:

Build on the fundamentals of HEC-RAS and finalize model setup for hydraulic simulations.
Learn how to incorporate land cover, soil layers, and infiltration parameters into the model.
Develop skills to manage unsteady flow data and compare various water input sources.
Optimize computational settings, geometry associations, and plan layouts for better simulation performance.
Gain proficiency in adjusting tolerances and computational intervals to enhance model accuracy and reliability.

Course Prerequisites

To participate in this training course, you should have a basic understanding of the following:

HEC-RAS Fundamentals

Video Duration: 29 Minutes

Tips:

Turn off your phone, and close your email, text, and social media apps.

Plug headphones or earbuds to your computer.

Go Full Screen when watching videos.
Floodplain Analysis

Floodplain Analysis Course Introduction

This course is the final step in the HEC-RAS training series, following the Fundamentals and Model Setup courses. It focuses on running simulations and interpreting results to extract meaningful insights. After setting up the model, this module will guide you through performing computations, analyzing outputs, and visualizing results effectively.

Throughout the course, you will learn how to execute model runs, interpret result layers, and navigate key analytical tools such as the Courant Map, Arrival Time, and Inundation Boundaries. You will also explore techniques for exporting maps, estimating volumes, and rendering results in both 2D and 3D using the RAS 3D Viewer.

By the end of this course, you will be equipped to analyze and present HEC-RAS results confidently. You will gain expertise in troubleshooting computations, refining output visualization, and leveraging advanced tools to enhance model interpretation. This course ensures you have the necessary skills to fully utilize HEC-RAS for hydraulic analysis and decision-making.

Course Objectives

The material presented in this course will teach you how to:

Execute HEC-RAS simulations and troubleshoot computational challenges.
Interpret and analyze result layers, including inundation boundaries and arrival times.
Utilize advanced tools such as the Courant Map and volume estimation for in-depth analysis.
Export and present results using map visualization and path profiles.
Navigate and render 3D results using the RAS 3D Viewer for enhanced interpretation.

Course Prerequisites

To participate in this training course, you should have a basic understanding of the following:

HEC-RAS Fundamentals

Setting up a Floodplain Model

Video Duration: 27 Minutes

Tips:

Turn off your phone, and close your email, text, and social media apps.

Plug headphones or earbuds to your computer.

Go Full Screen when watching videos.