Transcription of SECTION 7 – CULVERTS - Round Rock, Texas
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SECTION 7 – CULVERTS - Round Rock, Texas
7-1 SECTION 7 CULVERTS Table of Contents SECTION 7 CULVERTS Table of Contents .. 7-1 GENERAL .. 7-2 CULVERT HEADWALLS .. 7-2 General .. 7-2 Conditions at Entrance .. 7-3 Type of Headwall .. 7-3 Debris Fins.. 7-6 CULVERT DISCHARGE VELOCITIES .. 7-6 SELECTION OF CULVERT SIZE AND FLOW CLASSIFICATION .. 7-7 Culvert Hydraulics .. 7-7 Design Procedures .. 7-10 Instructions For Using Nomographs .. 7-12 Example 7-1 .. 7-14 HYDRAULIC CONSIDERATIONS IN BRIDGE DESIGN .. 7-15 General .. 7-15 Types Of Flow For Bridge Design .. 7-16 Modeling Hydraulic Conditions .. 7-17 7-2 Drainage Criteria Manual SECTION 7 - CULVERTS SECTION 7 - CULVERTS GENERAL The function of a drainage culvert is to pass the design storm flow without causing excessive backwater or overtopping of the structure and without creating excessive downstream velocities.
Warped headwalls are effective with aprons to accelerate flow through the culvert. 7-6 7.2.4 Debris Fins. For conditions where more than one (1) box culvert is required, the upstream face of the structure shall incorporate debris deflector fins toprevent debris buildup. For multiple -
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