Green Infrastructure Planning Resources
Municipal Regional Stormwater Permit Provision C.3.j. requires most Bay Area municipalities to complete and implement a Green Infrastructure Plan for the inclusion of Low Impact Development drainage design into storm drain infrastructure.
Each municipality's Green Infrastructure Plan describes how, over the long term, the municipality will shift their streets, roads, storm drains, parking lots, and building roofs from conventional “gray” storm drain infrastructure—where runoff flows directly into storm drains and then to creeks and the Bay/Delta—to a more resilient, sustainable system that slows runoff by dispersing it to vegetated areas, promotes infiltration, and uses bioretention to clean runoff.
The municipalities’ Green Infrastructure Plans were submitted to the San Francisco Bay Regional Water Quality Control Board in September 2019 (The cities of Antioch, Oakley, and Brentwood submitted their Plans in September 2020.)
The Plans include the following required elements:
- Targets for the amount of impervious surface to be retrofitted by 2020, 2030, and 2040
- Prioritized projects and areas for potential projects for implementation
- Process for tracking and mapping completed projects
- Updates to planning documents (General Plans, Storm Drain Master Plans, Complete Streets Plans, etc.)
- Design guidelines
- Standard specifications and details
- Evaluation of funding options
- Policies and ordinances needed to implement
- Outreach and education
Municipalities were also required to review their current infrastructure projects, identify and prioritize where Green Infrastructure can be included as part of these projects (“no missed opportunities”), and include a workplan for completing prioritized projects.
Early Implementation/No Missed Opportunities
- Guidance for Identifying Green Infrastructure Potential in Capital Improvement Projects (Bay Area Stormwater Management Agencies Association Development Committee, May 6, 2016, 225 KB .pdf)
Green Infrastructure Plan Preparation--Contra Costa Clean Water Program
- Fact Sheet and Update for Municipal Staff -- Preparing Green Infrastructure Plans (115 KB .pdf, January 2019)
- Green Infrastructure Planning and Implementation Workshop, September 26, 2018
- Green Infrastructure Plan Template (2 MB .docx, April 2018)
- Green Infrastructure Planning Tasks, Roles, and Timeframes (100 KB .pdf, updated June 2018)
- Presentation Template: Developing a Green Infrastructure Plan for… (7 MB .pptx, December 2016)
Permittee Shared Resources for Green Infrastructure Plan Preparation
Staff and consultants who prepared Permittees' local Green Infrastructure Plans assisted each other by sharing draft text, references, and other resources.
- Draft generic text for Plan sections addressing Provision C.3.j.i.(2)(a), ("a mechanism... to prioritize and map areas for potential and planned projects..."; this text describes the development of project lists through the Contra Costa Watersheds Storm Water Resources Plan), and addressing Provision C.3.j.i.(2)(d), ("A process for tracking and mapping completed projects, public and private, and making the information publicly available; also addresses C.3.j.iv.). This text was prepared by Geosyntec Consultants for the City of Walnut Creek.
Policies to Support Green Infrastructure Implementation
- Example Municipal Policies to Support Green Infrastructure Implementation (30 KB .docx, September 2018)
Green Infrastructure Project Planning and Design
Here are some useful guidance manuals, design examples, and engineering details:
- Contra Costa Stormwater C.3 Guidebook
- San Mateo County Sustainable Green Streets and Parking Lots Design Guidebook
- National Association of City Transportation Officials (NACTO) Urban Street Stormwater Guide
- San Francisco Stormwater Management Requirements and Design Guidelines
- San Francisco PUC Stormwater Management Requirements and Design Guidelines Appendix B: Green Infrastructure Typical Details
- Green Infrastructure for Southwestern Neighborhoods (Tucson)
- Central Coast Low Impact Development Institute Bioretention Standard Details and Specifications
- Central Coast LIDI Complete Street/Green Street Checklist
The Bay Area Stormwater Management Agencies Association (BASMAA) produced Guidance for Sizing Green Infrastructure Facilities in Street Projects, which accompanies a modeling analysis by Dubin Environmental Consulting (in one 3MB .pdf). San Francisco Regional Water Quality Control Board staff provided conditional acceptance of this guidance in a June 21, 2019 letter.
CCCWP’s outreach efforts to promote Green Infrastructure have included the following:
- Presentation to the American Public Works Association Northern California Chapter Conference, November 6, 2019
- Presentation to the Contra Costa City/County Engineering Advisory Committee (8 MB .pptx), January 17, 2019
- Presentation to Contra Costa Planning Directors (8 MB .pptx) January 11, 2019
- Presentation to the California Stormwater Quality Association (CASQA) Quarterly Meeting, May 10, 2018
- Presentation to Contra Costa Planning Directors (23 MB .pptx) at the Contra Costa Transportation Authority, May 10, 2018
- Presentation on Green Infrastructure Planning as part of CCCWP’s April 24, 2018 C.3 Workshop for Municipal Staff and Land Development Professionals
- Presentation to the East Bay Municipal Engineers, November 9, 2016
- Memorandum, Green Infrastructure Cost Estimation Methodology, Geosyntec Consultants, November 28, 2018
In April 2018, BASMAA published a Roadmap of Funding Solutions for Sustainable Streets. Funded by a USEPA grant and managed by the San Francisco Estuary Partnership, the roadmap includes specific actions designed to improve the availability of funding for Green Infrastructure Projects in the Bay Area and statewide.
Laura Prickett of Horizon Water and Environment prepared a memo (114 KB .docx) that includes a summary of the Regional Roundtable process that led to preparation of the Roadmap.