1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Basic Requirements
4 Hydrologic Investigation and Survey
4.1 General Requirements
4.2 Hydrologic Investigation
4.3 Hydrologic Survey
4.4 Flood Observation and Scour Exploration
4.5 Hydrologic Survey in Special Areas
5 Design Flood Analysis and Calculation
5.1 General Requirements
5.2 Design Flood Discharge
5.3 Design Flood Elevation
5.4 Design Flood Hydrograph
6 Bridge Site Selection and Bridge (Culvert) Opening Design
6.1 General Requirements
6.2 Bridge Site Selection on General Rivers
6.3 Bridge Site Selection in Special Areas
6.4 Bridge Opening Design
7 Calculation of Scour at Bridges and Protection
7.1 General Requirements
7.2 General ScourCalculation
7.3 Local Scour Calculation
7.4 Embedded Depth of Foundations
8 Hydrologic Calculation for Special Areas
8.1 Debris Flow Area
8.2 Karst Area
8.3 Tidal River Area
8.4 Water Conservation Area
8.5 Reservoir Area
8.6 Gulf or Bay Area
8.7 Gobi and Arid Area
8.8 Mountain Front Overflow Area
8.9 Multiple Bridges on One River
9 Training Works and Approach Embankments
9.1 General Requirements
9.2 Training Works
9.3 Approach Embankments on Floodplains
9.4 Rive Bank Protection at Bridge Ends
9.5 Stream Channel Modification
10 Small Bridges and Culverts
10.1 General Requirements
10.2 Hydrologic Investigation and Survey
10.3 Design Flood Discharge of Small Watersheds
10.4 Opening SizeCalculation
10.5 Small Bridges and Culverts Protection
11 Subgrades
11.1 Ruversude Syvgrades
11.2 Coastal Subgrades
11.3 Subgrades Near Reservoirs
11.4 Subgrade Protection Against Scour
11.5 Subgrade Drainage
12 Other Structures
12.1 Tunnels
12.2 Stations and Yards
12.3 Underground Passages
12.4 Buildings
12.5 Sites of Communications, Signaling, Electric Power Supply and Traction Power Supply
Appendix A Calculation of Dam Break Flows
A.1 Maximum Dam Break Discharge of Dam Site Sections
A.2 Maximum Dam Break Discharge of Bridge Site Sections
Appendix B River Types and Characteristic Indexes
Appendix C Simple Classification of Debris Flows
Appendix D Values of Flood Roughness Coefficient in Natural Rivers
Appendix E Weir Flow Formulas
Appendix F Non-scouring Velocity of 1 m of Water Depth for Non-cohesive Soils
Appendix G Pier Shape Coefficien
Appendix H Reference Data on Scour at Piers and Foundation Depth in Rocks
Appendix J Values of Coefficient of Debris Blockage
Appendix K Calculation of Discharge between Dams and Bridges
Appendix L Calculation of Storm Runoff in Small Watersheds
Words Used for Different Degrees of Strictness
