Stormwater Atlas

Maryland

MDOT SHA Drainage Manual

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Open source PDF ↗Official agency page ↗

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

Heuristic agency extract from prepared text. MDOT SHA Drainage Manual Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: design_criteria.approved_bmp_categories, document_metadata.jurisdiction_name
Other manuals in Maryland: City of Annapolis, City of Baltimore, City of Rockville, Maryland, Prince Georges County

Document Metadata

Jurisdiction level
State

No evidence cited

State
Maryland

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Version / edition
Not found in document

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Adoption / effective date
Not found in document

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Last revised date
Not found in document

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Relationship to state manual
independent

No evidence cited

Design Criteria

Design storm return periods (years)
2-year, 10-year, 25-year, 50-year

“ame 4% storm would be referred to as a “25-year storm”. With this nomenclature, the meaning is still the same: Maryland Departm”

Water quality volume method
Water Quality Volume Maryland Department of Transportation Chapter 1: Introduction P a g e | 1-10 State Highway Administration September 2023 Table 1-3: Symbols SYMBOL DEFINITION UNITS A Area of cross section of flow ft2

“Water Quality Volume Maryland Department of Transportation Chapter 1: Introduction P a g e | 1-10 State Highway Administration September 2023 Table 1-3: Symbols SYMBOL DEFINITION UNITS A Area of cross section of flow ft2”

Peak flow calculation method(s)
Rational Method, NRCS / SCS Curve Number (TR-55), TR-20, HEC-RAS

“.............................. 2-11 2.7 Rational Method ........................................................................”

Hydrologic/hydraulic software
HydroCAD, HEC-RAS, HY-8

No evidence cited

Approved BMP categories
Not found in document

No evidence cited