Stormwater Atlas

City of Alexandria

Green Streets and Sidewalks Stormwater Design Guidelines

CityVirginiamediumNeeds reviewCitations verified
Open source PDF ↗Official agency page ↗

This extraction is flagged for quality review.

Compare each cited field to the official PDF before relying on it. What this means

ROW-focused green streets guidelines; site development still relies on full VA BMP Clearinghouse / VESMP. Not a complete city stormwater design manual. Pipeline excerpt repair removed 2 unlocated citation(s).

Fields not found in document: document_metadata.adoption_or_effective_date, design_criteria.design_storm_return_periods_years, design_criteria.required_hydrologic_hydraulic_software, document_metadata.state_code, document_metadata.last_revised_date
Other manuals in Virginia: Arlington County, City of Charlottesville, City of Chesapeake, City of Norfolk, City of Richmond, City of Roanoke, Fairfax County, Virginia Department of Environmental Quality (DEQ), Virginia Department of Transportation (VDOT)

Document Metadata

Jurisdiction level
City

“City of Alexandria”

Cover

State
Not found in document

No evidence cited

Version / edition
2020 Final

“rvice_content/attachments/ BGI_Workshop_Final.pdf --- page 83 ---”

pp. 81–83

Adoption / effective date
Not found in document

No evidence cited

Last revised date
Not found in document

No evidence cited

Relationship to state manual
deemed equivalent to state manual

“supplement the Virginia BMP Clearinghouse standards and specifications”

Preface

Design Criteria

Design storm return periods (years)
Not found in document

No evidence cited

Water quality volume method
ROW BMP water quality sizing per Virginia BMP Clearinghouse standards: runoff from the 90th percentile 1-inch rainfall (VSMP) and/or the City Water Quality Volume Default of the first ½ inch of runoff from total impervious area. Urban bioretention and permeable pavement are primary ROW BMPs.

“90th percentile rainfall depth of 1 inch ... first ½ inch of runoff from the total impervious area ... Water Quality Volume Default”

Water Quality Sizing

Peak flow calculation method(s)
Virginia BMP Clearinghouse sizing, Virginia Stormwater Management Program criteria

“Virginia BMP Clearinghouse standards and specifications”

Water Quality Sizing

Hydrologic/hydraulic software
Not found in document

No evidence cited

Approved BMP categories
Urban bioretention / tree wells, Mid-sidewalk bioretention, Back of sidewalk bioretention, Bus bulb bioretention, Permeable pavement (sidewalks, parking, bike lanes)

“Urban Bioretention; Permeable Pavement”

TOC