City of Salem

Public Works Design Standards — Administrative Rule 109 (Div. 004 Stormwater)

CityOregonmediumNeeds reviewCitations verified

This extraction is flagged for quality review.

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

Full Admin Rule 109 PDF (multiple divisions). Stormwater criteria concentrated in Div. 004 / SRC 71 references. Pipeline excerpt repair removed 2 unlocated citation(s).

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

Other manuals in Oregon: City of Bend, City of Eugene, City of Portland, Clean Water Services, Oregon

Document Metadata

Jurisdiction level

City

“City of Salem”
Header

State

Not found in document

No evidence cited

Version / edition

March 2025

“Public Works Design Standards - March 2025”
Landing / 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

independent

“Salem Revised Code / Public Works Design Standards”
Introduction

Design Criteria

Design storm return periods (years)

100-year

“100-year floodway”
Easements

Water quality volume method

Green Stormwater Infrastructure (GSI) to the Maximum Extent Feasible (MEF) per SRC 71.100; water quality design storm represents 80% of average annual runoff volume (NSRR — Numeric Stormwater Retention Requirement). Flow control per SRC 71.095(c). Infiltration facilities sized with design infiltration rate = measured rate / 2 safety factor.

“Water Quality Design Storm Event - a design storm event representative of 80 percent of the”
Definitions

Peak flow calculation method(s)

Flow control performance standards (SRC 71.095), Hydrologic analysis Appendix 4D, 100-year floodway / open channel easement criteria

“flow control performance standards of SRC 71.095(c)”
Definitions

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Green stormwater infrastructure (planters, infiltration), Infiltration facilities / drywells (UIC), Filtration facilities, Flow control facilities, Pervious pavement / eco-roofs (impervious area reduction), Manufactured stormwater facilities (accepted list)

“Green Stormwater Infrastructure - GSI; Infiltration Facility”
Definitions