Volume 2-05, Chapter 3 - City of Wichita

More documents

Recommendations

Info

Section 3.2.4 - Grassed Channel L = Length (ft) T = time (sec) Depending on the site geometry, the width or slope or density of grass (Manning’s n value) might be adjusted to slow the velocity and shorten the channel in the next design iteration, if required. Page 3 - 68 Volume 2, Technical Guidance
Section 3.2.5 - Enhanced Swale 3.2.5 Enhanced Swale Primary Water Quality Facility Description: Vegetated open channels that are explicitly designed and constructed to capture and treat stormwater runoff within dry cells formed by check dams or other means. KEY CONSIDERATIONSS DESIGN CRITERIA: • Longitudinal slopes must be less than 4% • Bottom width of 2 to 8 feet • Side slopes of 3:1 or flatter required • Convey the on-site design storm event with 1 foot minimum freeboard ADVANTAGES / BENEFITS: • Combines stormwater treatment with system runoff conveyance • Often less expensive than curb and gutter • Reduces runoff f velocity • Aesthetic improvement DISADVANTAGES / LIMITATIONS: • Higher maintenance than curb and gutter systems • Cannot be used on steep slopes • Possible resuspension of sediment • Concerns with aesthetics of 4”-6” highh grass in residential areas MAINTENANCE REQUIREMENTS: • Maintain grass heights of approximately 4 to 6 inches • Remove sediment from forebay and channel POLLUTANT REMOVAL H M Total Suspended Solids Nutrients – Total Phosphorus & Total Nitrogen STORMWATER MANAGEMENT SUITABILITY Water Quality Protection Channel Protection On-Site Flood Control Downstream Flood Control IMPLEMENTATION CONSIDERATIONS H Land Requirements M Relative Capital Costs M Maintenance Burden Residential Subdivision Use: Yes High Density/Ultra-Urban: No Drainage Area: 5 acres max. Soils: No restrictions Other Considerations: • Permeable soil layer (dry swale) L=Low M=Moderate H=High M No Data Metals – Cadmium, Copper, Lead & Zinc Pathogens – Coliform, Streptococci & E. Coli Volume 2, Technical Guidance Page 3 - 69
Page 1 and 2:
CHAPTER 3 STORMWATER CONTROLS TABLE
Page 3 and 4:
Chapter 3 - Table of Contents 3.2.8
Page 5 and 6:
Chapter 3 - Table of Contents LIST
Page 7 and 8:
Section 3.1 - Stormwater Management
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24: Section 3.1 - Stormwater Management
Page 31 and 32: Section 3.2.1 - Stormwater Pond 3.2
Page 33 and 34: Section 3.2.1 - Stormwater Pond Fig
Page 35 and 36: Section 3.2.1 - Stormwater Pond For
Page 37 and 38: Section 3.2.1 - Stormwater Pond •
Page 39 and 40: Section 3.2.1 - Stormwater Pond 1'
Page 45 and 46: Section 3.2.1 - Stormwater Pond 3.2
Page 47 and 48: Section 3.2.1 - Stormwater Pond Ste
Page 53 and 54: Section 3.2.2 - Extended Dry Detent
Page 59 and 60: Section 3.2.3 - Vegetative Filter S
Page 67 and 68: Section 3.2.4 - Grassed Channel 3.2
Page 73: Section 3.2.4 - Grassed Channel max
Page 77 and 78: Section 3.2.5 - Enhanced Swale Chan
Page 79 and 80: Section 3.2.5 - Enhanced Swale B. G
Page 81 and 82: Section 3.2.5 - Enhanced Swale High
Page 83 and 84: Section 3.2.5 - Enhanced Swale Side
Page 85 and 86: Section 3.2.5 - Enhanced Swale 3.2.
Page 87 and 88: Section 3.2.6 - Infiltration Trench
Page 99 and 100: Section 3.2.7 - Soakage Trench 3.2.
Page 101 and 102: Section 3.2.7 - Soakage Trench •
Page 103 and 104: Section 3.2.8 - Surface Sand Filter
Page 117 and 118: Section 3.2.9 - Bioretention Areas
Page 125 and 126:
Section 3.2.9 - Bioretention Areas
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Section 3.2.10 - Stormwater Wetland
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Section 3.3 - Secondary TSS Treatme
Page 153 and 154:
Section 3.3.1 - Proprietary Treatme
Page 155 and 156:
Section 3.3.1 - Proprietary Treatme
Page 157 and 158:
Section 3.3.2 - Gravity (Oil-Water)
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Section 3.3.3 - Alum Treatment 3.3.
Page 165 and 166:
Section 3.3.3 - Alum Treatment •
Page 167 and 168:
Section 3.3.4 - Underground Sand Fi
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Section 3.3.5 - Organic Filter 3.3.
Page 183 and 184:
Section 3.3.5 - Organic Filter •
Page 185 and 186:
Section 3.4 - Other Stormwater Mana
Page 187 and 188:
Section 3.4.1 - Conventional Dry De
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Section 3.4.2 - Underground Dry Det
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Section 3.4.3 - Porous Pavement 3.4
Page 201 and 202:
Section 3.4.3 - Porous Pavement The
Page 203 and 204:
Section 3.4.3 - Porous Pavement com
Page 205 and 206:
Section 3.4.3 - Porous Pavement Fig
Page 207 and 208:
Section 3.4.4 - Modular Porous Pave
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Section 3.4.5 - Green Roof 3.4.5 Gr
Page 215 and 216:
Section 3.4.5 - Green Roof Signific
Page 217 and 218:
Section 3.4.5 - Green Roof 3.4.5.3
show all

Volume 2-05, Chapter 3 - City of Wichita

Create successful ePaper yourself

Delete template?

Save as template?