Drainage Design Manual - the City of San Luis Obispo

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Notes:1. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENT TRACKING OF FLOWINGSEDIMENT ONTO PUBLIC RIGHT-OF-WAYS. THIS MAY REQUIRE TOP DRESSING, REPAIR AND/OR CLEANOUT OFANY MEASURES USED TO TRAP SEDIMENT.2. WHEN NECESSARY, WHELLS SHALL BE CLEANED PRIOR TO ENTRANCE ONTO PUBLIC RIGHT-OF-WAY.3. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE THAT DRAINS INTOAN APPROVED SEDIMENT TRAP OR SEDIMENT BASIN.Gravel EntranceCity & County of San Luis ObispoDrainage Design ManualFigure10-1QUESTA ENGINEERING CORPORATION
Notes:1. PLACE BALES PERPENDICULAR TO FLOW.2. EMBED THE BALE 4” (100 mm) INTO THE SOIL AND “KEY” THE END BALESINTO THE CHANNEL BANKS TO PREVENT FLOW AROUND THE BALES.3. BALES PLACED IN A ROW WITH ENDS TIGHTLY ABUTTING.4. POINT “A” SHALL BE HIGHER THAN POINT “B”.5. SPILLWAY HEIGHT SHALL NOT EXCEED 24” (0.6 m).Catch Basin ProtectionDrainage Design ManualCity & County of San Luis ObispoFigure10-2QUESTA ENGINEERING CORPORATION
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San Luis Obispo CreekWaterway Manag
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SECTION 4.0 HYDROLOGIC & HYDRAULIC
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SECTION 8.0 DESIGN OF DRAINAGE PUMP
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11.12 Erosion Control Seeding......
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DRAINAGE DESIGN MANUALFOR THECITY O
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ôó1Ragged PointSan SimeonCambriaM
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SECTION 2.0PROJECTS REQUIRING HYDRO
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3. or, is an individual development
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• Geomorphic, Geotechnical and St
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SECTION 3.0CORE REQUIREMENTS AND RE
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elevations, and existing channel st
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1000 0 1000 Meters1 0 1 MilesCity L
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N300 0 300 MetersLEGEND100-Year Flo
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• All streets to be dedicated to
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• A minimum setback of 15 m (50 f
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3.6.4 Preference for Vegetative and
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compliance with the measures prescr
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4.1 Hydrologic Analysis4.1.1 Genera
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Table 4-1Runoff CoefficientsHydrolo
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Overland Flow TimeSLO Creek Phase I
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Channel or Pipe Flow occurs where f
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45745766071176260955855860971166050
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Table 4-3Rainfall - Intensity Data
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4.1.4 Example ProblemA sample basin
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Table 4-7Example Composite Runoff C
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Table 4-9Example Rational Method Ru
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developed. For minor waterways and
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SECTION 5.0OPEN CHANNEL ANALYSIS AN
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case, a Natural Channel may be modi
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5.2 Channel Design Flow Requirement
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maintenance to maintain the design
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The following guidelines should be
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Channel PlanformDrainage Design Man
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• Native vegetation shall be pres
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Manning’s Roughness Values are pr
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6.1 GeneralSECTION 6.0ANALYSIS & DE
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6.3 Design ReferencesThe designer i
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stream stabilization needs totaling
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causes and modes of failure act tog
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(permissive velocity) and/or bounda
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Re-run the model after coding in th
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Step 2 - Develop and Screen Alterna
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Cost. The design must be cost effec
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Step 3 - Develop Concept Plan and D
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Legally it is up to the applicant t
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e necessary, as well as other work
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(0.6-0.9 m)(0.6-0.9 m)(152-203 mm)L
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(1.2 m)(1.2 m)(12 mm to 51 mm)(1.5
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(0.9 m)(0.6 m x 0.6 m x 914 mm)(457
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(0.6 - 0.9 m)Vegetated GeogridDrain
Page 107 and 108: Planted Rip RapDrainage Design Manu
Page 109 and 110: A-JacksDrainage Design ManualCity &
Page 111 and 112: (1.5 m)(13 to 25 mm)(0.6 to 0.9 m)R
Page 113 and 114: (13 - 25 mm)(0.6 to 0.9 m)Planted G
Page 115 and 116: (2.4 m)(2.4 m)Flow DeflectorsDraina
Page 117 and 118: performance. This technique require
Page 119 and 120: Boulder ClustersDrainage Design Man
Page 121 and 122: of a bend, and filled around and on
Page 123 and 124: horizontal line are SI (metric) nam
Page 125 and 126: GRADING OF ROCK SLOPE PROTECTION PE
Page 127 and 128: A layer of Backing No. 1 or No. 2 i
Page 129 and 130: SECTION 7.0DESIGN OF CONDUITS, CULV
Page 131 and 132: 7.2.3 Storm Drain Location and Alig
Page 133 and 134: In paved areas, pipe cover shall be
Page 135 and 136: • Drop inlets shall be spaced suc
Page 137 and 138: Marine Fisheries Service NMFS South
Page 139 and 140: For all intermediate channels, eith
Page 141 and 142: 7.4.8 Easements for Closed Conduits
Page 143 and 144: SECTION 9.0STORMWATER MANAGEMENT FA
Page 145 and 146: Detention for the 10-year design st
Page 147 and 148: 9.2.1 Provisions For SedimentationT
Page 149 and 150: 9.5 Basin DesignDetention and reten
Page 151 and 152: mm (24 in). A corrugated metal pipe
Page 153 and 154: have side panels or other devices t
Page 155 and 156: SECTION 10.0EROSION CONTROL AND STO
Page 157: 10.3.1 Gravel Construction Entrance
Page 161 and 162: • Filter fences (also known as si
Page 163 and 164: SEED MIX ONE(Application rate = 40
Page 165 and 166: • Description of soils, geology,
Page 167 and 168: • The facilities shown on this pl
Page 169 and 170: The following control measures are
Page 171 and 172: BMP 3 Dewatering OperationsI. Defin
Page 173 and 174: BMP 5 Illicit Connection/Illegal Di
Page 175 and 176: D. All vehicles/equipment that regu
Page 177 and 178: I. Properly dispose of or recycle u
Page 179 and 180: BMP 12 Solid Waste ManagementI. Def
Page 181 and 182: H. Temporary washout facilities sha
Page 183 and 184: SECTION 11.0RIPARIAN REVEGETATION P
Page 185 and 186: per second (6 feet per second). Whi
Page 187 and 188: TABLE 11-2: WOODY SHRUBS FOR SAN LU
Page 189 and 190: TABLE 11-4: GRASSES AND HERBSFOR SA
Page 191 and 192: TABLE 11-5: MARSH PLANTS FOR SAN LU
Page 193 and 194: 11.4 Planting Site Considerations11
Page 195 and 196: Where vandalism is not a problem, t
Page 197 and 198: Table 11-6Recommended Species Compo
Page 199 and 200: Larger Crown TreesPlant in clusters
Page 201 and 202: plant materials (often one growing
Page 203 and 204: Exotic Treeto be RemovedNative Tree
Page 205 and 206: Step 4: Select plants suitable for
Page 207 and 208: • Exotic vegetation on the site s
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• Removal of Exotic VegetationThe
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Placement of weed control fabric or
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11.12 Erosion Control SeedingRevege
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y wind or water runoff; should be e
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Abrasion. Removal of streambank soi
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Confluence. A junction of streams o
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Flood. A general and temporary cond
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Left Bank. The left-hand bank of st
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Shear stress. The force per unit ar
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Velocity (of water in a stream). Th
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Association of Bay Area Governments
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Hoover, Robert F. 1970. The Vascula
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U.S. Army Corps of Engineers, April
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Drainage Design Manual - the City of San Luis Obispo

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