Prop 4 – Nature-Based Solutions (NBS)

San Diego River Conservancy · State of California

At a glance

Prop 4 – Nature-Based Solutions (NBS) is an open California state grant opportunity from the San Diego River Conservancy (State of California). Applications are accepted on an ongoing basis. Total estimated funding is $8M. Applicant types listed as eligible include nonprofit, public agency and tribal government. It is listed on the California Grants Portal. Cost sharing is not required.

Summary assembled from the official notice's fields. The official notice governs.

Key facts

Opened: Jun 8, 2026
Close date: Ongoing
Award floor: Not specified
Award ceiling: Not specified
Est. total funding: $8,000,000
Expected awards: Not specified
Matching funds: Not required
Funding instrument: Grant

Program details (as published on the California Grants Portal)

Type: Grant
Funding source: State — The Safe Drinking Water, Wildfire Prevention, Drought Preparedness, and Clean Air Bond Act of 2024 (2024 Climate Bond)
Matching funds: Not Required
Funding method: Advances & Reimbursement(s)
Estimated number of awards: Dependant on number of submissions received, application process, etc.
Estimated award amounts: Dependant on number of submissions received, application process, etc.
Award period: 2 years
Expected award announcement: Fall/Winter 2026
Letter of intent: Not required
Geography: San Diego River Watershed and Sweetwater, Otay and Tijuana Rivers Watersheds.
How to submit: By email: dustin.harrison@sdrc.ca.gov

Who can apply

Applicant categories as listed on the California Grants Portal. GrantsJunction maps them to detailed applicant types for search and matching.

Nonprofit
Public Agency
Tribal Government

Can your organization apply?

A quick check against the listed applicant types — other requirements in the notice still apply.

Based on the published notice. Review the official notice for complete eligibility requirements.

What it funds

Purpose and description as published on the California Grants Portal.

Purpose

The purposes of Prop 4 include watershed improvement, wildfire resilience, chaparral and forest restoration, and workforce development that addresses needs related to this subdivision and to reduce the risks of climate change impacts upon communities, fish and wildlife, and natural resources, and increase public access.

Description

Multi-benefit projects that advance a number of goals, including but not limited to: • Conserving land • Protecting resources • Reducing flood and fire risk • Improving water quality • Protecting and enhancing wildlife habitats and corridors • Completing the San Diego River Trail • Providing public access for the enjoyment of the San Diego River Park and open space, trails, campgrounds and park facilities • Removing invasive plant species from the watershed • Increasing native habitat and promoting the re-establishment of native species • Promoting cultural and tribal preservation, and historical interpretation of the San Diego River and its people

Program page on the agency site ↗

How to apply

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Read the program guidelinesThe agency's solicitation or guidelines set eligibility details, scoring criteria and required documents. Open ↗
Confirm eligibility and fitCheck your organization type and location (see Geography above).
Find out how to submitBy email: dustin.harrison@sdrc.ca.gov
Request letters of support and partner commitmentsPartners need time to write and sign letters; ask early.
Finish a full draft of the application and budgetFollow the guidelines' format exactly; state programs often require specific forms and attachments.
Ask the program contact any questions earlyDustin Harrison · dustin.harrison@sdrc.ca.gov Open ↗
Internal review and sign-offLeave time for leadership or board approval and a final proofread.
Submit while funds remainSubmit a few days early and keep your submission confirmation.

Program contact (as published)

Dustin Harrison
dustin.harrison@sdrc.ca.gov
1-619-390-0571

Quick answers

Who is eligible to apply for “Prop 4 – Nature-Based Solutions (NBS)”?

The official listing names these applicant types as eligible: Nonprofit, Public Agency and Tribal Government. Additional restrictions may apply; review the full guidelines.

How much funding is available through “Prop 4 – Nature-Based Solutions (NBS)”?

Per the notice, total estimated program funding is $8,000,000.

How do I apply for “Prop 4 – Nature-Based Solutions (NBS)”?

Applications go directly to San Diego River Conservancy, not through GrantsJunction. Submission: by email to dustin.harrison@sdrc.ca.gov. Read the program guidelines on the agency's site first; state programs set their own forms and registration requirements.

Other open California state opportunities, matched on agency, categories and wording.

OpenState of California