City of Buffalo / Buffalo Sewer Authority

Plan Review Guidance for Stormwater Management Design

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Short BSA local guidance; design numbers come from NYSMDM + combined-sewer peak criterion. Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: document_metadata.adoption_or_effective_date, design_criteria.required_hydrologic_hydraulic_software, document_metadata.last_revised_date

Other manuals in New York: City of Albany, City of Rochester, City of Syracuse, City of Yonkers, New York, New York City, New York State, New York State

Document Metadata

Jurisdiction level

City

“City of Buffalo Code / Green Code”
Guidance

State

New York

“New York State Stormwater Design Manual”
Criteria

Version / edition

2019-10-15

“191015 Plan Review SW Guidance”
Filename

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

“All designs must follow the criteria and standards contained in the most recent version of the New York State Stormwater Design Manual”
Guidance

Design Criteria

Design storm return periods (years)

1-year, 2-year, 10-year, 25-year, 100-year

“1-, 10-, and 100- year storm event / 25-year / 2-year”
SWPPP requirements

Water quality volume method

Designs must follow the most recent New York State Stormwater Management Design Manual (WQv and RRv targets). Green Infrastructure hierarchy (Green Code 7.3.4): conservation → bioretention/swales/porous pavement → green/blue roofs/cisterns → off-site GI → subsurface infiltration → underground detention. Combined/storm-relief sewer connections: post-construction 25-year peak ≤ pre-construction 2-year peak (TR-55 + NYSMDM).

“Water Quality Volume (WQv) and Runoff Reduction Volume (RRv) Targets”
SWPPP A.6

Peak flow calculation method(s)

Pre- and post-construction 1-, 10-, and 100-year storm calculations (storm-only connections), TR-55 + NYSMDM for combined/storm-relief: 25-year post ≤ 2-year pre peak, WQv and RRv targets per NYSMDM

“post-construction 25-year storm peak flows to the storm relief/ combined sewer system are less than or equal to pre-construction 2-year storm peak flows”
Combined sewer criteria

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Conservation of natural areas, Bioretention / rain gardens / planters / bioswales, Filter strips / constructed wetlands / porous pavement, Green roof / blue roof / cisterns, Subsurface infiltration / underground retention, Underground detention

“Bio-retention /Rain Gardens / Porous Pavement / Underground detention”
Preference hierarchy