FLOOD01360

• County: Statewide
• Title: Hydraulic Design of Highway Culverts
• Date: 9/1/1998
• Prepared By: Federal Highway Administration
• Floodplain - Doc Type: Educational/Technical/Reference Information

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B. Descrintions of Tanered Inlets 66 VI SPECIAL CONSIDERATIONS
1. Side- tapered 66 1
2. Slope-tapered 67 A. Introduction 107 1
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C. Hvdraulics 70 B. Suecial Auulications 107 ~
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1. Inlet Control 70 1. Flow Control and 107
2. Outlet Control 71 Measurement ~
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3. Outlet Velocity 71 2. Low Head Installations 108 J
3. Bends 110 1
D. Performance Curves 72 4. Junctions 111
5. Siphons 113 .
E. Desilln Methods 73 6. Fish Passage 114 1
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1. Preliminary Culvert Sizing 74 C. Erosion. Sedimentation 116 J
2. Culvert Barrel Design 74 and Debris Control
3. Tapered Inlet DesigD 74
4. Dimensional Limitations 76 1. Scour at IDlets 116 .
2. Scour at Outlets 117
F. Rectanllular (Box) Culverts 76 3. Sedimentation 119
4. Debris Control 120
1. Design Procedures 76
2. Multiple Barrel Designs 78 D. Site-related Modifications 121
3. Example Problems 78
I. Skewed Barrels 121
G. Circular Pine Culverts 87 2. Skewed Inlets 122
3. Multiple Barrels 123
1. Design Procedures 87
2. Multiple Barrel Designs 88 E. Economics 124
3. Dimensional Limitations 89
4. Example Problems 89 1. Service Life 125
2. Comparisons Between 125
H. Standard Desilms 93 Culverts and Bridges
3. Comparisons Between 126
Materials and Shapes
V STORAGE ROUTING 4. Risk Analysis 127
A. The Routinll Conceut 95 F. Safety 128
B. Methodolollv 96 I. Inlet and Outlet Location 128
and Design
C. Auulication To Culvert Desilm 97 2. Safety Barriers and 130
Grates
1. Data Requirements 97
2. Initial Culvert Sizing 97 G. Structural Considerations 131
D. Storal!e Indication 9~ 1. General Structural 131
Method Analysis
2. Flotation and Anchorage 133
E. Examule Problem 100 3. Endwalls and Wingwalls 134
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