VIRGINIA DCR STORMWATER DESIGN SPECIFICATION No. …

Bioretention basins may also be distributed throughout a residential subdivision, but ideally they should be located in common area or within drainage easements , to treat a combination of roadway and lot runoff. Urban Bioretention. These are structures such as expanded tree pits, curb extensions, and

  Virginia, Design, Specification, Stormwater, Basin, Bioretention, Bioretention basins, Virginia dcr stormwater design specification no

Local Government Infrastructure Design Association

20.3.4 Bioretention Basins and Rain Gardens 136 20.3.5 Vegetated Swales, Grassed Swales, and Buffer Strips 138 20.3.6 Sand Filters 139 20.3.7 Sedimentation Basins 140 20.3.8 Constructed Wetlands 140 20.3.9 Ponds and Shallow Lake Systems 141 20.3.10 Rainwater Tanks 141 Clause 21 Stormwater Discharge Points 142 ...

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Rounded Proposed UPS Description UNIT Unit Cost GENERAL ...

Bioretention Basins & Filters $ CY Constructed Wetlands $ CY Extended Detention Pond (Dry Pond) $ CY Extended Detention and Retention Riser Structure $ VLF Manufactured BMP Systems - Hydrodynamics $ CY Manufactured BMP Systems - Filtering $ CY Permeable Pavement System - Asphalt with gravel base and perforated drains, brick & grass pavers with ...

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Bioretention Basins/Rain Gardens

Bioretention Basins/Rain Gardens Definition: A bioretention area or rain garden is a shallow planted depression designed to retain or detain stormwater before it is infiltrated or discharged downstream. While the terms “rain garden” and “bioretention basin” may be used interchangeably, they can be considered along a continuum of size,

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Sustainable drainage systems (SUDS)

basins, although most SUDS features can also provide infiltration depending on design and ground conditions. Quantity Quality Amenity and Biodiversity 1.2 The SUDS drainage philosophy SUDS manage the flooding and pollution aspects of drainage and ensure that the community and wildlife are considered in SUDS design.

  System, Sustainable, Basin, Drainage, Sustainable drainage systems, Suds

SUSTAINABLE LANDSCAPE MAINTENANCE MANUAL

SUSTAINABLE LANDSCAPE MAINTENANCE MANUAL for the Chesapeake Bay Watershed By Cheryl Corson 2017 edition Developed for the Chesapeake Bay Landscape Professional ...

DETENTION FACILITY DESIGN AND ANALYSIS

5.1.1 DETENTION PONDS — DESIGN CRITERIA. minimum of 20% silt and clay, a maximum of 60% sand, a maximum of 60% silt and clay, with nominal gravel and cobble content.