|
1
|
Introduction to Floodplain Modeling
|
|
|
|
1.1 A Brief History of Floodplain Modeling
|
|
|
|
|
|
|
|
1.3 Types of Floodplain Studies
|
|
|
2
|
Introduction to Open Channel Hydraulics
|
|
|
|
|
|
|
|
|
|
2.3 Fundamental Equations
|
|
|
|
|
2.4 Energy and Momentum Concepts
|
|
|
|
|
|
|
|
2.6 Computational Methods
|
|
|
3
|
Hydraulic Models
|
|
|
|
|
|
|
3.2 Steady, Gradually Varied Flow
|
|
|
|
|
|
|
|
3.4 Unsteady Gradually Varied Flow (One-Dimensional)
|
|
|
|
|
3.5 Gradually Varied, Unsteady Flow (Two-Dimensional)
|
|
|
|
|
3.6 Gradually Varied, Unsteady Flow (Three-Dimensional)
|
|
|
|
|
|
|
|
3.8 Selecting a Simulation Program
|
|
|
4
|
Hydraulic Study Planning
|
|
|
|
4.1 Setting Project and Study Objectives
|
|
|
|
|
|
|
|
|
|
|
4.4 Determining the Type of Hydrologic/Hydraulic Simulation Needed
|
|
|
|
|
4.5 Determining Data Needs
|
|
|
|
|
4.6 Defining Hydrologic Modeling Procedures
|
|
|
|
|
4.7 Performing Data Input and Calibration
|
|
|
|
|
4.8 Performing Production Runs for Base Conditions
|
|
|
|
|
4.9 Performing Project Evaluations
|
|
|
|
|
4.10 Preparing the Report
|
|
|
5
|
Data Needs, Availability, and Development
|
|
|
|
|
|
|
5.2 Study Limits/Boundary Determinations
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5.8 Calibration and Verification Needs
|
|
|
6
|
Bridge Modeling
|
|
|
|
|
|
|
6.2 Low Flow Through Bridges
|
|
|
|
|
6.3 High Flow Through Bridges
|
|
|
|
|
6.4 Modeling the Expansion-Contraction Reach
|
|
|
|
|
6.5 Ineffective Flow Areas
|
|
|
|
|
6.6 Bridge Structure Modeling
|
|
|
|
|
|
|
|
|
|
|
6.9 WSPRO Bridge Modeling
|
|
|
7
|
Culvert Modeling
|
|
|
|
|
|
|
|
|
|
|
|
|
7.4 Inlet Control Computations
|
|
|
|
|
7.5 Outlet Control Computations
|
|
|
|
|
7.6 Modeling the Expansion-Contraction Reach
|
|
|
|
|
7.7 Culvert Structure Data
|
|
|
|
|
7.8 Special Culvert Problems
|
|
|
8
|
Model Operation, Calibration, and Production Runs
|
|
|
|
|
|
|
8.2 Analyzing HEC-RAS Output
|
|
|
|
|
8.3 Adjusting HEC-RAS Input Easily
|
|
|
|
|
8.4 Calibration Procedures
|
|
|
|
|
|
|
|
8.6 Developing Hydrologic Routing Data
|
|
|
|
|
8.7 Determination of Existing Conditions
|
|
|
9
|
National Flood Insurance Program
|
|
|
|
9.1 The National Flood Insurance Program
|
|
|
|
|
9.2 Terminology and Concepts
|
|
|
|
|
9.3 Publications used in the NFIP
|
|
|
|
|
|
|
|
9.5 Revising Flood Studies and Maps
|
|
|
|
|
9.6 Engineering Revisions
|
|
|
|
|
|
10
|
Floodway Modeling
|
|
|
|
10.1 Methods of Performing an Encroachment
|
|
|
|
|
|
|
|
10.3 Steps in Developing a Floodway
|
|
|
|
|
10.4 Reviewing and Modifying Encroachment Output
|
|
|
|
|
10.5 Adopting the Floodway
|
|
|
|
|
10.6 Working with an Existing Floodway
|
|
|
11
|
Channel Modification
|
|
|
|
|
|
|
11.2 Channel Modification Methods
|
|
|
|
|
11.3 Channel Design Considerations
|
|
|
|
|
|
|
|
11.5 HEC-RAS Output Information for Channel Design
|
|
|
|
|
|
12
|
Flood Reduction Structures and Other Special Modeling Problems
|
|
|
|
|
|
|
12.2 Modeling Landfills or Buildings
|
|
|
|
|
|
|
|
12.4 In-Line Gates and Weirs
|
|
|
|
|
|
|
|
12.6 Split Flow Diversions
|
|
|
|
|
12.7 Ice cover/Jam Flood Modeling
|
|
|
13
|
Mobile Boundary Situations and Bridge Scour
|
|
|
|
13.1 Mobile Boundary Analysis
|
|
|
|
|
13.2 Types of Mobile Boundary Analyses
|
|
|
|
|
13.3 General Bridge Scour
|
|
|
|
|
13.4 Bridge Scour Computational Procedures
|
|
|
|
|
13.5 Computing Scour with HEC-RAS
|
|
|
|
|
13.6 Cautions and Concerns
|
|
|
14
|
Unsteady Modeling
|
|
|
|
14.1 The Engineering Significance of Unsteady Flow
|
|
|
|
|
14.2 Generic Approaches To Unsteady Modeling
|
|
|
|
|
|
|
|
14.4 Unsteady Flow Theory
|
|
|
|
|
|
|
|
|
|
|
14.7 Differences Between Steady And Unsteady Modeling
|
|
|
|
|
|
|
|
14.9 Unsteady Modeling Methods With HEC-RAS
|
|
|
15
|
Importing/Exporting Files with HEC-RAS
|
|
|
|
|
|
|
|
|
|
15.3 Using HEC-2 Files with RAS
|
|
|
|
|
15.4 Importing HEC-2 Files
|
|
|
|
|
15.5 Technical Review of Calculations with Imported HEC-2 Files
|
|
|
16
|
The Reporting Process — Documentation, Graphics, and Tables
|
|
|
|
|
|
|
|
|
|
|
|
Appendix A: Sample Work Plan
|
|
|
Appendix B: Equations for Common Open Channel Shapes
|
|
|
Appendix C: References
|
|
|
Bibliography
|
|
|
Index
|
What They Say
Table of Contents
