Stream Flow Enhancement Program (Proposition 1)

forested bend of the american river, three steelhead, aerial view of the sacramento river and surrounding farmland


California voters approved the Water Quality, Supply, and Infrastructure Improvement Act of 2014 (Proposition 1) to provide funding to implement the three objectives of the California Water Action Plan, which are: more reliable water supplies, the restoration of important species and habitat, and a more resilient and sustainably managed water resources system that can better withstand inevitable and unforeseen pressures in the coming decades.

Proposition 1 authorized the Legislature to appropriate $200 million to the Wildlife Conservation Board (WCB) to fund projects that result in enhanced stream flows (i.e., a change in the amount, timing, and/or quality of water flowing down a stream, or a portion of a stream, to benefit fish and wildlife). WCB distributes these funds on a competitive basis through the Stream Flow Enhancement Program (Program).

The Program funds projects that enhance stream flows and are consistent with the objectives and actions outlined in the California Water Action Plan, with the primary focus on enhancing flow in streams that support anadromous fish; support special-status, threatened, endangered, or at-risk species; or provide resilience to climate change. The goals of the Program are to:

  • Support projects that lead to meaningful increases in the availability and quality of water in streams, particularly by protecting and restoring functional ecological flows for streams identified as a priority for fish and wildlife.
  • Support projects that work to remove key barriers to securing enhanced flows for nature (e.g., by making it easier to change the timing of flows as needed, or streamlining processes for long-term transfers of water for stream flow).
  • Support projects that allocate resources for infrastructure (e.g., gauges) for evaluating stream flow conditions and stream responses to enhancement efforts.

The process, procedures, and criteria through which WCB administers the Program are described in the Program Guidelines and Proposal Solicitation Notices.

Project Examples

Examples of project types (should not be viewed as exhaustive lists of eligible project types):

  • Water Transactions (e.g., changes to a stream’s hydrograph through lease, transfer, or seasonal exchange of water)
  • Acquisition of water from willing sellers – permanent and long-term (not less than 20 years) dedications for the purpose of instream flow
  • Habitat restoration projects (e.g., weed eradication, wet meadow restoration, restoration of entrenched streams, upper watershed restoration or forest thinning) that reshape stream hydrograph.
  • Planning studies requiring CEQA compliance, permitting, and engineering for specific projects
  • Studies to evaluate instream flow needs, identify priority streams and watersheds, or evaluate habitat suitability and temperature needs
  • Water efficiency generally – Irrigation efficiency and water infrastructure improvements (e.g., diversion, conveyance, and on-farm projects) that save water and enable reshaping of the stream hydrograph
  • Reconnecting flood flows with restored flood plains
  • Capital outlay projects that allow reservoir operations both at existing and new storage sites


Adam Ballard, Program manager
(916) 324-7487

How to Apply

The Program distributes Proposition 1 funds on a competitive basis through the Proposal Solicitation Notice (PSN) process. The application period for Fiscal Year 2020-2021 has closed. The next PSN is expected to be released in July 2021. Please see Additional Resources below for more information regarding this competitive grant program.

Additional Resources

For updates regarding the Program, please use the Subscribe feature on WCB’s home page. You may also contact to be added to a Program-specific email distribution list.

For more information, please see the link opens in new windowProgram Guidelines (PDF).

Wildlife Conservation Board
Physical Address: 1700 9th Street, 4th Floor, Sacramento, CA 95811
Mailing Address: Wildlife Conservation Board c/o CDFW, P.O. Box 944209, Sacramento, CA 94244-2090
(916) 445-8448 | Contact WCB