City of Sacramento

Onsite Design Manual

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

Sacramento Onsite Design Manual covers drainage plus SWQ/LID; numeric SWQDV formulas may live in referenced regional manuals. Adoption date not explicit beyond revision stamp.

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

Other manuals in California: Alameda Countywide Clean Water Program (ACCWP) / City of Fremont, California, California Department of Transportation (Caltrans), California Department of Transportation (Caltrans), City of Anaheim, City of Bakersfield, City of Chula Vista, City of Long Beach, City of Oakland, City of San Diego, City of San Francisco, City of San Jose / Santa Clara Valley (SCVURPPP), City of Santa Barbara, City of Santa Rosa, City of Stockton / San Joaquin County, County of Los Angeles, County of Orange, Fresno Metropolitan Flood Control District, Riverside County, San Bernardino County, Tahoe Regional Planning Agency (Lake Tahoe Region)

Document Metadata

Jurisdiction level

City

“City of Sacramento”
Purpose

State

California

“state issued WDID number”
Plan requirements

Version / edition

Rev. 03/01/2026

“Rev. 03/01/2026”
Running footer

Adoption / effective date

Not found in document

No evidence cited

Last revised date

2026-03-01

“Rev. 03/01/2026”
Running footer

Relationship to state manual

independent

“Stormwater quality treatment and Low Impact Development (LID) methods”
Purpose

Design Criteria

Design storm return periods (years)

10-year, 100-year

“10 and 100-year event tailwater elevations and sources.”
Drainage study requirements

Water quality volume method

Stormwater quality post-construction requirements and LID design per Section 7. Detention volume for increased imperviousness sized using City basin-specific 100-year storage required per acre (Figure 10); 10-year storage must remain outside vehicular/pedestrian surfaces when part of 100-year volume is stored on pavement.

“Multiply the additional impervious area by the 100-year event storage required per acre”
Detention sizing procedure

Peak flow calculation method(s)

Rational Method (static analysis), Dynamic analysis option for drainage studies, Mitigate increased imperviousness with 100-year storage volume; check 10-year storage when using surface storage

“shall use the rational method as specified below; only a 10-year event”
Section 3.1.2 Rational Method

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Detention, Retention, Low Impact Development (LID) design features, Surface stormwater quality features

“Detention & Retention / Low Impact Development (LID) Design”
TOC Sections 3.10 / 7.2