Erosion and Sediment Pollution Control Program Manual.pdf
Erosion and Sediment Pollution Control Program Manual.pdf
Erosion and Sediment Pollution Control Program Manual.pdf
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Page<br />
Manning’s Equation……………………………………………………………………………..127<br />
Berm ....................................................................................................................................... 150<br />
Top-of-Slope Berm ..................................................................................................................... 150<br />
Temporary Slope Pipe ............................................................................................................... 153<br />
Bench ........................................................................................................................................ 157<br />
Chapter 7 - <strong>Sediment</strong> Basins ........................................................................................................... 159<br />
Design Criteria ........................................................................................................................... 159<br />
Storage Volume Criteria ............................................................................................................. 164<br />
Design Procedure ...................................................................................................................... 164<br />
Skimmer Dewatering .................................................................................................................. 166<br />
Perforated Riser Dewatering ...................................................................................................... 174<br />
Freeboard .................................................................................................................................. 192<br />
Emergency Spillway ................................................................................................................... 192<br />
Flow Length to Width Ratio ........................................................................................................ 199<br />
Outlet Barrels ............................................................................................................................. 202<br />
Anti-seep Collar ......................................................................................................................... 203<br />
Filter Diaphragm ........................................................................................................................ 209<br />
<strong>Sediment</strong> Storage Zone Dewatering .......................................................................................... 211<br />
Chapter 8 - <strong>Sediment</strong> Traps ............................................................................................................. 212<br />
Design Criteria ........................................................................................................................... 212<br />
Embankment <strong>Sediment</strong> Trap ...................................................................................................... 214<br />
Barrel/Riser <strong>Sediment</strong> Trap ........................................................................................................ 217<br />
Chapter 9 - Outlet Protection ........................................................................................................... 229<br />
Riprap Apron .............................................................................................................................. 232<br />
Flow Transition Mat .................................................................................................................... 242<br />
Stilling Basin (Plunge Pool) ........................................................................................................ 245<br />
Stilling Well ................................................................................................................................ 248<br />
Energy Dissipater ....................................................................................................................... 251<br />
Drop Structure............................................................................................................................ 252<br />
Earthen Level Spreader ............................................................................................................. 253<br />
Structural Level Spreader .......................................................................................................... 255<br />
Chapter 10 - Low Hazard Individual Lot E&S Plans ......................................................................... 256<br />
Chapter 11 - Stabilization Methods <strong>and</strong> St<strong>and</strong>ards .......................................................................... 260<br />
Surface Roughening .................................................................................................................. 260<br />
Stair Step Grading .......................................................................................................... 260<br />
Grooving Slopes ............................................................................................................. 261<br />
Tracking Slopes .............................................................................................................. 262<br />
Vegetative Stabilization .............................................................................................................. 262<br />
Topsoil Application ......................................................................................................... 263<br />
Seeding .......................................................................................................................... 263<br />
Mulching ......................................................................................................................... 270<br />
Composting .................................................................................................................... 271<br />
<strong>Erosion</strong> <strong>Control</strong> Blankets ............................................................................................................ 273<br />
Hydraulically Applied Blankets ........................................................................................ 275<br />
Soil Binders ................................................................................................................................ 276<br />
Sodding...................................................................................................................................... 277<br />
Cellular Confinement Systems ................................................................................................... 280<br />
Chapter 12 - New Products <strong>and</strong> Procedures .................................................................................... 282<br />
Chapter 13 - Utility Line Projects ...................................................................................................... 283<br />
Roadway Crossings ................................................................................................................... 284<br />
Stream Crossings ...................................................................................................................... 284<br />
Wetl<strong>and</strong> Crossings ..................................................................................................................... 290<br />
363-2134-008 / March 31, 2012 / Page v