ENVIRONMENTAL ENGINEERING FOR FLOOD CONTROL CHANNELS

2,89
MB

97
stron

2139
ID UNITED STATES ARMY CORPS OF ENGINEERS

1998
rok

Table of Contents

Chapter 1. INTRODUCTION

Purpose 1-1 1-1

Scope . 1-2 1-1

Applicability . 1-3 1-1

References 1-4 1-1

Bibliography 1-5 1-2

Background 1-6 1-3

Checklist of Data Sources 1-7 1-3

Design Procedure 1-8 1-3

Glossary . 1-9 1-3

Chapter 2. STREAM CHANNEL MODIFICATION AND ASSOCIATED ENVIRONMENTAL EFFECTS



Channel Modification Designs . 2-1 2-1

General Environmental Effects . 2-2 2-2

Effects of Snagging . 2-3 2-3

Effects of Clearing . 2-4 2-3

Effects of Channel Excavation . 2-5 2-5

Effects of Channel Paving 2-6 2-6

Effects of Side Slope Protection . 2-7 2-7

Effects of Sediment Control

Structures and Culverts 2-8 2-8

Effects of Levees and Floodwalls . 2-9 2-8

Chapter 3. ENVIRONMENTAL CONSIDERATIONS FOR PRELIMINARY DESIGN

Introduction 3-1 3-1

Water Quality . 3-2 3-3

Fluvial Geomorphology 3-3 3-6

Ecological Resources 3-4 3-7

Cultural Resources . 3-5 3-8

Aesthetic Resources . 3-6 3-9

Chapter 4. ENVIRONMENTAL CONSIDERATIONS FOR DESIGN

General 4-1 4-1

Clearing and Snagging 4-2 4-2

Floodways . 4-3 4-3

Channel Excavation 4-4 4-3

Channel Paving . 4-5 4-14

Channel Side Slope Protection . 4-6 4-14

Erosion Control Structures and Culverts 4-7 4-17

Levees and Floodwalls 4-8 4-17

Special Considerations for Urban Projects 4-9 4-27

Selection of Environmental Features for a Given Project 4-10 4-32

Chapter 5. ENVIRONMENTAL CONSIDERATIONS FOR CONSTRUCTION AND MAINTENANCE

General 5-1 5-1

Erosion and Sediment Control . 5-2 5-1

Minimizing Disturbance 5-3 5-1

Aquatic Plant Control 5-4 5-2

Chapter 6. ENVIRONMENTAL DATA COLLECTION AND ANALYSIS

General Considerations 6-1 6-1

Data Collection . 6-2 6-3

Data Analysis, Interpretation, and Presentation of Results 6-3 6-5

Data Base Management . 6-4 6-8

Chapter 7. MITIGATION DECISION ANALYSIS

Policy . 7-1 7-1

Definitions 7-2 7-1

Key Concepts for Mitigation 7-3 7-1

Examples 7-4 7-3

APPENDICES:

A. BIBLIOGRAPHY A-1

B. POTENTIAL SOURCES OF DATA B-1

C. SAMPLE PROCEDURE FOR THE DESIGN OF FLOOD CONTROL a CHANNEL PROJECTS .

C-1

GLOSSARY GLOSSARY-1