Stormwater Atlas

City of Annapolis

Maryland Stormwater Design Manual (capital MS4 / ESD to the MEP)

CityMarylandmediumNeeds reviewCitations verified

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

Municipality coverage via Maryland Stormwater Design Manual (Baltimore pattern). Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: design_parameters.wqv_depth_inches

Document Metadata

Jurisdiction level
City

No evidence cited

State
Maryland

No evidence cited

Version / edition
Volume One

No evidence cited

Adoption / effective date
Not found in document

No evidence cited

Last revised date
Not found in document

No evidence cited

Relationship to state manual
adopts state manual directly

No evidence cited

Design Criteria

Design storm return periods (years)
1-year, 2-year, 10-year, 100-year

No evidence cited

Water quality volume method
WQv = (P)(Rv)(A)/12 with P = 1.0 in Eastern / 0.9 in Western Rainfall Zone; ESD to the MEP per Maryland Stormwater Design Manual (same framework as Baltimore).

WQv is calculated as (P)(Rv)(A)/12, where P is the rainfall depth (1.0 inch ... 0.9 inch ...)

MD Design Manual Vol.1

Peak flow calculation method(s)
TR-55, TR-20

No evidence cited

Hydrologic/hydraulic software
TR-20, TR-55

No evidence cited

Approved BMP categories
Stormwater Ponds, Stormwater Wetlands, Infiltration Practices, Filtering Systems, Open Channel Practices, Non-structural / ESD Practices

No evidence cited