FLOOD06514

• County: Statewide
• Basin: Statewide
• Title: Colorado Erosion Control Manual
• Date: 11/1/1992
• Prepared For: CWCB
• Prepared By: USGS
• Floodplain - Doc Type: Floodplain Report/Masterplan

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ACKNOWLEDGEMENTS I

NOTATION XI

GLOSSARY xm

CHAPTER 1

CHAPTER 2

CHAPTER 3

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Introduction 1
1.1 BACKGROUND - I
1.2 PURPOSE - 2
1.3 SCOPE - 2

River Mechanics and Geomorphology 3

2.1 Introduction - 3

2.2 River Morphology - 3
2.2.1 Chaooel Ragima - 4
2.2.2 Ch8M81 Planforrn - 4
2.2.3 Channel Cross Sections - 5
2.2.4 Bank Ma18ria1 - 7
2.3 Fluvial Processes - 7
2.3.1 Basin Dynamics - 7
2.3.2 ConlrOl6ng Variables - 8
2.3.3 Sadimentation. 8
2.3.4 Aggradation and Degradation - 9
2.3.5 Sysl8m Response - 10
2.4 Hydrology. - 11
2.4.1 Inlroduction - 11
2.4.2 Use of Discharge Frequency Information - 11
2.4.3 Use of Flow Duration Information. 12
2.4.4 References - 13
2.5 Swnmary - 14

Mechanisms of Streambank Failure 15

3.1 Introduction - 15
3.1.1 Importance of Identification - 15
3.1.2 General Modes of Fa~u", - 16
3.2 Erosion From Hydraulic Causes - 16
3.2.1 Influencing Variables - 17
3.2.2 CutnIIll Attack . 17
3.2.3 Rainfall Runol. 17
3.2.4 Wave Action. 17
3.3 Failure From Geotechnical Causes - 17
3.3.1 Geotechnical Parame,"",. 21
3.4 Bank Loss from Combined Causes - 21

Colorado Erosion Control Manual

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