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<br />DRAINAGE CRITERIA MANUAL (V. 1)
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<br />e
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<br />4.4
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<br />4.5
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<br />4.6
<br />4.7
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<br />TABLE OF CONTENTS
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<br />4.3.4 Safety Requirements....,. ....,. .... .....,...................'.........,...................... ..,........ MD-57
<br />4.3.5 Calculation Tools,.....,....,. .,.,. .... ................ .......................... ...........,..,.....,...... MD-58
<br />4.3.6 Maintenance,...........,....,.....,. ...., ......... ...... .......... .......... ...... ................ .....,..... MD-58
<br />4.3.7 Design Submittal Checklist ....,...................................................................... MD-59
<br />Riprap-Lined Channels.., ....,. ..... .....,...... ....,.... .........,. .... .......... .... ...... ............ ............ MD-59
<br />4.4.1 Types of Riprap .............................,..............,.........................,...................... MD-60
<br />4.4.1,1 Ordinary Riprap,..................,....,....,....,....,......,..............,..........,... MD-60
<br />4.4.1,2 Grouted Boulders ...............,..,............,....,.....................,.............. MD-61
<br />4.4.1,3 Wire-Enclosed Rock (Gabions)...............,.................................... MD-63
<br />4.4.2 Design Criteria ............................................................,..,.............................. MD-63
<br />4.4,2.1 Design Velocity..........................................,......,.......................... MD-63
<br />4.4.2.2 Design Depths.............,.....,.......................................................... MD-63
<br />4.4.2.3 Riprap Sizing.................,...............,.........................................,.... MD-63
<br />4.4,2.4 Riprap Toes.....,...........,..................,........................................'.... MD-64
<br />4.4,2.5 Curves and Bends.........................................................,..,.........., MD-65
<br />4.4.2.6 Transitions... .....,.....,......... ....,...... .......... .......... ............ ................. MD-65
<br />4.4,2.7 Design Discharge Freeboard ....................................................... MD-65
<br />4.4.3 Roughness Coefficient.................................................................................. MD-66
<br />4.4.4 Bedding Requirements .....,..........,................................................................ MD-66
<br />4.4.4.1 Granular Bedding ,..........,..................,....................,.........,....,...... MD-66
<br />4.4.4.2 Filter Fabric ,.........................................................................,....... MD-68
<br />4.4,5 Channel Cross Section ,......,..............,..........,....,....,...............................,...., MD-68
<br />4.4,5.1 Side Slopes ...............,....,.........,....,...................,.....,..............,...., MD-68
<br />4.4,5.2 Depth ,............... .....,.....,.... ..,.. ...... ..,..'.... ....,.......... ........................ MD-68
<br />4.4,5.3 Bottom Width.......................................................,........................ MD-68
<br />4.4,5.4 Outfalls Into Channel.....................................,.............................. MD-69
<br />4.4.6 Erosion Control ...............,............................................................................. MD-69
<br />4.4.7 Maintenance.................... ........ ...... .......... ..... .... ..............'...... ........................ MD-69
<br />4.4,8 Calculation Example ........,............................................................................ MD-69
<br />4.4.9 Design Submittal Checklist .................,..........,....,....,..............,......,..,.........., MD-70
<br />Bioengineered Channels.... ...... .....,. .......... .......... ...... .... ...., .... ............ ..... ......... ...... .... MD-70
<br />4,5.1 Components........., ..........,. ...... ...... ......... ...... .... .... ..... ...... ...... ...... .... .............. MD-71
<br />4,5.2 Applications. .......... ...... .....,................,.... .............. ................ ..... ..........,. ........ MD-73
<br />4,5.3 Bioengineering Resources ................................................,........................... MD-73
<br />4,5.4 Characteristics of Bloengineered Channels............,...............,..............,...... MD-73
<br />4,5,5 Advantages of Bioengineered Channels ................................................,..... MD-74
<br />4,5,6 Technical Constraints......,.....,................ ...... ........ ..... ...... ...... .... ....... ............. MD-75
<br />4,5.7 Design Guidelines ......,....,.........................................................,.....,............. MD-76
<br />Natural Channeis ..............' .....,..... ............. ....... ........ .... .... ......... ........ ..... .......... ..,...... MD-??
<br />Retrofitting Open-Channel Dralnageways ................................................................. MD-79
<br />4,7.1 Opportunities for Retrofitting ,.........,............................,...........,..................... MD-79
<br />4,7.2 Objectives of Retrofitting .,...................,.............,....,...............,....,................. MD-79
<br />4,7.3 Natural and Natural-Like Channel Creation and Restoration ....................... MD-80
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<br />RECTANGULAR CONDU ITS ..., ................. .... ....... ..... ...... .... ......,.... ...................... ................, MD-97
<br />5,1 Hydraulic Design ..........,.....,.....,................................................................................. MD-97
<br />5.1.1 Entrance ........................................,....,..................................,....................... MD-98
<br />5.1.2 Internal Pressure..,.....,....,............,..............................................,.........,....... MD-98
<br />5.1.3 Curves and Bends...............,......................................................................... MD-99
<br />5.1.4 Transitions.........,....,.......................,.........,....,...,........................................... MD-99
<br />5,1,5 Air Entrainment .................,....................................,.................,....,.........,...., MD-99
<br />5.1,6 Major Inlets..,....,.......................,...............,..............................................,....' MD-99
<br />5,1,7 Sedimentation ,..................................................,.........................,............,.... MD-99
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<br />5.2 Appurtenances....,..........,....,. .........,. .....,...... ........., ........,................ ....., ....... ,...... ..,.... MD-99
<br />5.2,1 Energy Dissipaters .,..........,......................,........,..............,............,.........,... MD-1 00
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<br />5.0
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<br />6/2001
<br />Urban Drainage and Flood Control District
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<br />TOC-xi
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