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Admin Order 58-14-01-F
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Admin Order 58-14-01-F
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Last modified
3/28/2014 1:31:50 PM
Creation date
3/28/2014 1:04:17 PM
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City Recorder
CMO_Document_Type
Admin Orders
Document_Date
3/26/2014
Document_Number
58-14-01-F
CMO_Effective_Date
3/26/2014
Author
CRO
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Chapter 2.0 <br />SELECTING, DESIGNING, CONSTRUCTING AND LANDSCAPING <br />STORMWATER MANAGEMENT FACILITIES <br />This chapter provides procedures for selecting and designing stormwater facilities that <br />provide stormwater flood control, quality, and flow control. It includes: <br />2.1 <br />INTRODUCTION ....................................................................................................... ............................... 3 <br />2.2 <br />STORMWATER FACILITIES ................................................................................ ............................... 3 <br />2.2.1 <br />Impervious Area Reduction Techniques ............................... ............................... 3 <br />2.2.2 <br />Infiltration Treatment Facilities ............................................... ............................... 3 <br />2.2.3 <br />Filtration Treatment Facilities ................................................... ............................... 3 <br />2.2.4 <br />Mechanical Treatment Devices ................................................. ............................... 3 <br />2.2.5 <br />Facility Underdrains and Surface Overflows ....................... ............................... 4 <br />2.2.6 <br />Source Control Devices .................................................................. ..............................4 <br />2.3 <br />FACILITY DESIGN CRITERA ................................................................................. ..............................5 <br />2.3.1 <br />Public Stormwater Facilities ...................................................... ............................... 7 <br />2.3.2 <br />Private Stormwater Facilities .................................................... ............................... 7 <br />2 .3.3 <br />Contained Planter ............................................................................ ..............................9 <br />2.3.4 <br />Eco- Roof ............................................................................................ .............................11 <br />2.3.5 <br />Permeable Pavements ................................................................. .............................15 <br />2 .3.6 <br />Trees ................................................................................................... .............................17 <br />2 .3.7 <br />Filter Strip ......................................................................................... .............................19 <br />2.3.8 <br />Ponds ................................................................................................ ............................... <br />21 <br />2.3.8.1 <br />Wet Ponds ....................................................................................... ............................... <br />21 <br />2.3.8.2 <br />Extended Wet Ponds .................................................................. ............................... <br />21 <br />2 .3.8.3 <br />Dry Detention Ponds .................................................................. ............................... <br />21 <br />2 .3.9 <br />Rain Garden .................................................................................... ............................... <br />25 <br />2.3.10 <br />Sand Filter ....................................................................................... ............................... <br />29 <br />2 .3.11 <br />Stormwater Planter .................................................................... ............................... <br />31 <br />2.3.12 <br />Swale ................................................................................................... .............................35 <br />2.3.13 <br />Proprietary Treatment Devices .............................................. ............................... <br />39 <br />2.3.14 <br />Spill Control Manhole ................................................................. ............................... <br />41 <br />2.3.15 <br />Structural Detention Facility ................................................... ............................... <br />43 <br />2 .3.16 <br />Drywell ............................................................................................... .............................45 <br />2 .3.17 <br />Soakage Trench ............................................................................ ............................... <br />47 <br />2.4 <br />FACILITY SIZING APPROACHES .................................................................... ............................... <br />49 <br />2.4.1 <br />Simplified Approach (SIM Form 2013) ............................... ............................... <br />49 <br />2.4.2 <br />Presumptive Approach .............................................................. ............................... <br />50 <br />2.5 <br />HYDROLOGIC ANALYSIS .......................................................... ........................................................ <br />52 <br />2.6 <br />ACCESS FOR <br />OPERATIONS AND MAINTENANCE .................................. ............................... <br />54 <br />2 .7 <br />OUTFALL DESIGN ................................................................................................. ............................... <br />55 <br />2.8 <br />CONSTRUCTION CRITERIA .............................................................................. ............................... <br />56 <br />Stormwater Management Manual 2 -1 <br />Eugene 2014 <br />
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