Entire Design Manual - Greenville County

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APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Appendix J Appendix K Appendix L Appendix M Storm Water Management Permit Submittal Flow Diagram Rainfall and Universal Soil Loss Equation Data Culvert Design Nomographs Soils Erosion Prevention and Sediment Control – Suggested Uses & BMP Selection Flowchart During Construction EPSC Specifications and Details Post Construction Water Quality Suggested Uses Post Construction Water Quality Specifications and Details Low Impact Development Specifications and Details Low Impact Development Design Charts Water Quality Factors for Fee Credits References Figures Greenville County, South Carolina January 2013 Storm Water Management Design Manual xi
ACRONYMS AND ABBREVIATIONS AASHTO American Association of State Highway and Transportation Officials AMC Antecedent moisture condition BFM Bonded Fiber Matrix BMP Best Management Practice CEC Cation Exchange Capacity cfs Cubic Feet per Second CLOMR Conditional Letter of Map Revision CM Corrugated Metal CMP Corrugated metal pipe cms Cubic Meter per Second CN Curve number CREAMS Chemicals, Runoff and Erosion in Agricultural Management Systems CWA Clean Water Act DO Dissolved Oxygen ECB Erosion Control Blanket EI Erosivity Index EPSC Erosion Prevention and Sediment Control EPSD Eroded Particle Size Distribution ERU Equivalent Residential Unit ETV Environmental Technology Verification FEMA Federal Emergency Management Agency FGM Flexible Growth Matrix FHWA Federal Highway Administration FIA Federal Insurance Administration GIS Geographic Information System HECP Hydraulic Erosion Control Product HSG Hydrologic Soil Group HW Headwater IDEAL Integrated Design and Assessment for Environmental Loadings IMP Integrated Management Practice LDD Land Development Division LEED Leadership in Energy and Environmental Design LID Low Impact Development MEP Maximum Extent Practicable MS4 Municipal Separate Storm Sewer System MSDS Material Safety Data Sheet MTD Manufactured Treatment Device MUSLE Modified Universal Soil Loss Equation NCRS Natural Resource Conservation Service NJCAT New Jersey Corporation for Advanced Technology NPDES National Pollutant Discharge Elimination System NURP National Urban Runoff Program NWS National Weather Service PAM Polyacrylamide PRF Peak Rate Factor PVC Polyvinyl Chloride RC Reinforced Concrete RCP Reinforced Concrete Pipe Greenville County, South Carolina January 2013 Storm Water Management Design Manual xii
Page 1 and 2: GREENVILLE COUNTY STORM WATER MANAG
Page 3 and 4: 3.10.1 Purpose ....................
Page 5 and 6: 8.4.2 Design of Riprap Channel Lini
Page 7 and 8: LIST OF TABLES Table Name Page# Tab
Page 9 and 10: Figure 8-10 Subsurface Draiange Cap
Page 11: Standard Drawing WQ-08 Standard Dra
Page 15 and 16: Chapter 1. INTRODUCTION 1.1 Purpose
Page 17 and 18: Effects of Urbanization on Watershe
Page 19 and 20: Utilize nontraditional lot designs
Page 21 and 22: South Carolina Storm Water Manageme
Page 23 and 24: Nothing in the Storm Water Manageme
Page 25 and 26: Chapter 2. STORM WATER MANAGEMENT R
Page 27 and 28: Technical Report The technical repo
Page 29 and 30: The Greenville County Storm Water P
Page 31 and 32: Chapter 3. PLAN SUBMITTAL 3.1 Storm
Page 33 and 34: flooding or water quality or other
Page 35 and 36: Plan. However, concurrence in the c
Page 37 and 38: interfere with access to the easeme
Page 39 and 40: Agency, and does not require prepar
Page 41 and 42: 3.3.3 Storm Water Management Design
Page 43 and 44: Design details and computation for
Page 45 and 46: of the Clean Water Act; Description
Page 47 and 48: 1. Restrict or prohibit uses that a
Page 49 and 50: Each permit must include: Floodplai
Page 51 and 52: water in storm water management fac
Page 53 and 54: 3.4 Digital Submittal Requirements
Page 55 and 56: 3.5.3 Incomplete Storm Water Manage
Page 57 and 58: Final Storm Water Management Site P
Page 59 and 60: 2. The owner has obtained applicabl
Page 61 and 62: 2. Upgrade of Existing Detention or
Page 63 and 64:
standards. The following conditions
Page 65 and 66:
Chapter 4. EASEMENTS 4.1. Purpose A
Page 67 and 68:
left hand corner of the plat. No ot
Page 69 and 70:
equired, only the SCS Method or oth
Page 71 and 72:
Description of Area Runoff Coeffici
Page 73 and 74:
The SCS CN Method begins with a rai
Page 75 and 76:
Use Figure 5-1 (Composite CN) if th
Page 77 and 78:
5.2.3.3. Factors Affecting the Time
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Diversion, Swales, Paved gutters, R
Page 81 and 82:
T c : Time of concentration (T c )
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Mild slopes less than 2 percent. Si
Page 85 and 86:
484 300 t/Tt q/qu Q/Qp q/qu Q/Qp 3.
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triangular approximation, k r = t r
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5.6.2 Normalized Peak Flow Rate If
Page 91 and 92:
Rainfall-runoff calculations carrie
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Chapter 6. HYDRAULICS 6.1. Open Cha
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6.1.3 Momentum Equation The momentu
Page 97 and 98:
Type of Flow Media Min Normal Max N
Page 99 and 100:
The hydraulic radius (R) for a trap
Page 101 and 102:
Rearrangement of the continuity equ
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Water quality and channel protectio
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all three equations should be utili
Page 107 and 108:
6.3.4 Critical Depth in Culverts Wh
Page 109 and 110:
Select entrance coefficient K e fro
Page 111 and 112:
Type of Structure and Design of Ent
Page 113 and 114:
Therefore, Inlet Control prevails a
Page 115 and 116:
6.4.3 Flow Through a Rock Ditch Che
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Stage (m) Flow Length (m) Unit Flow
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6.5.1.4 Pipe Size The minimum pipe
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where backwater effects created fro
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2) Knowing the channel dimensions,
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Table 6-5. Maximum Permissible Velo
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Chapter 7. STORM WATER DETENTION DE
Page 129 and 130:
Evaluate the control structure outl
Page 131 and 132:
6. Access: Maintenance access shall
Page 133 and 134:
4. Access Port: Access to the subsu
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asin area. In calculating runoff vo
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equirements, The downstream propert
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times gully erosion is formed on th
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8.2. Purpose This chapter of the De
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8.3.2 Alternative Erosion Preventio
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Manning’s n of matting: 0.025 Sid
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**If side slopes were less than 3:1
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V S = Y D W * 43,560 Where V S is t
Page 151 and 152:
If construction of a particular sit
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are located Appendix F and include:
Page 155 and 156:
must be obtained. For Greenville Co
Page 157 and 158:
Solution: Part (a) 1. Estimate the
Page 159 and 160:
If the ditch check ratio intersects
Page 161 and 162:
8.7.4.1 Silt Fence Design Aid Ratio
Page 163 and 164:
B. 1. A Cecil D 15 topsoil is 0.006
Page 165 and 166:
A sediment storage volume shall be
Page 167 and 168:
Chapter 9. WATER QUALITY 9.1. Water
Page 169 and 170:
lakes (US EPA, 1997). Such nutrient
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Table 9-4. Event Mean Concentration
Page 173 and 174:
Event mean pollutant concentrations
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Permanent water quality ponds and d
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only the permanent pools of storm w
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9.7. Non-Structural Water Quality C
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A ( K T ) = cd I [( ) − K] Where:
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General Structural Control Sand Fil
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BMP TSS TP TN Estimated Pollutant R
Page 187 and 188:
Limited Structural Control Vegetate
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equired water quality standard. For
Page 191 and 192:
Chapter 10. LOW IMPACT DEVELOPMENT
Page 193 and 194:
Minimize imperviousness by reducing
Page 195 and 196:
10.1.1.5.1 Residential Residential
Page 197 and 198:
Maximize sheet flow Modify/ lengthe
Page 199 and 200:
Table 10-3. LID Techniques for use
Page 201 and 202:
from infiltration. The results of t
Page 203 and 204:
volume control, needed to maintain
Page 205 and 206:
Table 10-4. Site Constraints of LID
Page 207 and 208:
Chapter 11. STREAM PROTECTION AND R
Page 209 and 210:
advantages. Vegetated measures prov
Page 211 and 212:
Frequency of bank-full flow based o
Page 213 and 214:
with geotextiles and geogrids suppl
Page 215 and 216:
Date and location of the site inspe
Page 217 and 218:
Failure to comply with the storm wa
Page 219 and 220:
on the property, and payment of all
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Entire Design Manual - Greenville County

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