FLOOD06421

• County: Statewide
• Basin: Statewide
• Title: Highways in the River Environment
• Date: 2/1/1990
• Prepared By: Federal Highway Administration
• Floodplain - Doc Type: Educational/Technical/Reference Information

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T ABLE OF CONTENTS (Continued)

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CHAPTER III - FUNDAMENT ALS OF ALLUVIALJ::HANNEL FJ DIt'{

3. I Introduction

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3.2 Sediment Properties and Measurement Techniques
3.2.l Particle Size
3.2.2 Particle Shape
3.2.3 Fall Velocity
3.2.4 Sediment SLw Distribution
3.2.5 Specific Weight
3.2.6 Porosity
3.2.7 Cohesion
3.2.8 Angle of Repose

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3.3 Flow in Sandbed Channels
3.3.l Regimes of F low in Alluvial Channels
3.3.2 Bed Configuration
3.3.3 Plane Bed without Sediment Movement
3.3.4 Ripples
3.3.5 [Junes
3.3.6 Plane Bed With Movement
3.3.7 Antidunes
3.3.8 Chutes and Pools
3.3.9 Bars

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3.4 Resistance to Flow in Alluvial Channels
3.4.1 Depth
3.4.7 Slope
3.4.3 Apparent Viscosity and Density
3.4.4 Size of Bed Material
3.4.5 Size Gradation
3.4.6 F all Velocity
3.4.7 Shape F actor for the Reach and Cross-Section
3.4.8 Seepage Force
3.4.9 Concentration of Bed Material Discharge
3.4.10 Fine Sediment Concentration
3.4.11 Bedform Predictor and Manning's n Values
for Sand-Bed Streams
3.4.12 How Bedform Changes Affect Highways in the
River Environment
3.4.13 Alluvial Processes and Resistance to Flow in
Coarse Material Streams

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