Hydraulic Design of Highway Culverts - DOT On-Line Publications

TABLE OF CONTENTS (Cont.)
G. Circular Pipe Culverts .......................................................................................... 113
1. Design Procedures .......................................................................................... 113
2. Multiple Barrel Designs .................................................................................... 114
3. Dimensional Limitations ................................................................................... 115
4. Example Problem............................................................................................. 115
V. STORAGE ROUTING
A. The Routing Concept............................................................................................. 123
B. Methodology .......................................................................................................... 124
C. Application to Culvert Design ................................................................................ 125
1. Data Requirements .......................................................................................... 125
2. Initial Culvert Sizing ......................................................................................... 126
D. Storage Indication Method .................................................................................... 127
E. Example Problem .................................................................................................. 129
VI. SPECIAL CONSIDERATIONS
A. Introduction............................................................................................................ 143
B. Special Applications .............................................................................................. 143
1. Flow Control and Measurement....................................................................... 144
2. Low Head Installations..................................................................................... 144
3. Bends............................................................................................................... 146
4. Junctions.......................................................................................................... 147
5. Siphons ............................................................................................................ 149
6. Fish Passage ................................................................................................... 150
C. Erosion, Sedimentation, and Debris Control ......................................................... 153
1. Scour at Inlets .................................................................................................. 153
2. Scour at Outlets ............................................................................................... 154
3. Sedimentation .................................................................................................. 156
4. Debris Control .................................................................................................. 157
D. Site Related Modifications..................................................................................... 158
1. Skewed Barrels................................................................................................ 159
2. Skewed Inlets................................................................................................... 159
3. Multiple Barrels ................................................................................................ 161
E. Economics ............................................................................................................. 163
1. Service Life ...................................................................................................... 163
2. Comparisons Between Culverts and Bridges .................................................. 164
3. Comparisons Between Materials and Shapes ................................................. 164
4. Risk Analysis.................................................................................................... 166
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