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.
storm meeting the limitations for overflows at bridges and culverts set forth in Section 1.2.4C. and 1.2.4D. of this Manual. 7.2.0 CULVERT HEADWALLS 7.2.1 General The normal functions of properly designed headwalls and endwalls are to anchor the culvert in order to prevent movement due to hydraulic and soil pressures, to control
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