Restoration funding should increasingly be focused on large-scale projects that restore natural processes by reconnecting water and land.

The Measure

This measure supports a resilient and functioning Sacramento-San Joaquin Delta ecosystem by calling for increased funding for projects that possess attributes to restore ecosystem functions.

  • Expectations

    • Funding increases for large-scale projects that restore hydrological and geomorphic processes, improve connectivity, support native vegetation communities, and contribute to the recovery of special-status species that help to restore ecosystem functions
  • Performance Metrics

    • Project funding of covered actions that file a certification of consistency under ER Policy “A”: Disclose Contributions to Restoring Ecosystem Function

Restoration Projects Consistent with the Delta Plan

Ecosystem restoration projects in the Delta are considered Delta Plan covered actions and must be certified as consistent with the Delta Plan. Below is a table of covered actions that filed consistency with the Delta Plan that were identified as restoration projects. For the most up-to-date list of covered actions, please visit the covered actions portal.

Next data update: This visualization will be updated annually at the end of the calendar year.

Restoring Ecosystem Function

The best available restoration science identifies the following priority attributes that maximize the effectiveness of individual ecosystem protection, restoration, and enhancement projects.

  • Restore hydrological, geomorphic, and biological processes
  • Be large-scale
  • Improve connectivity
  • Increase native vegetation cover
  • Contribute to the recovery of special-status species

Restoration projects that have all these priority attributes are most effective in restoring ecosystem functions and contributing to a healthy, resilient Delta. Projects with only one or two of these attributes are less effective, although they still contribute toward a healthy Delta ecosystem.

Restoration projects should be designed to achieve as many of the priority attributes as possible.

Delta Plan ER Policy "A" Rulemaking

The Ecosystem Amendment established a new policy, ER Policy "A": Disclose Contributions to Restoring Ecosystem Function. This policy is applicable to restoration projects in the Delta. This policy becomes effective after rulemaking with the Office of Administrative Law is completed. After the ER Policy “A” is in effect, this performance measure will track funding allocations to restoration projects with this policy. In the meantime, this measure tracks covered actions that filed consistency with the Delta Plan that were identified as restoration projects and their funding.

Featured Projects that Restore Ecosystem Function by Connecting Water and Land

Below are examples of projects that are certified as consistent with the Delta Plan with desirable priority attributes.

Tule Red Tidal Restoration Project

The Tule Red Tidal Restoration Project would restore habitat for delta smelt, longfin smelt, and salmon by restoring estuarine marsh and shallow water habitat in the Suisan Marsh area, restoring approximately 350 acres of existing managed brackish wetlands to tidal habitat.

Tule red
Figure 1: Tule Red Tidal Restoration Project

Dutch Slough Restoration Project

The Dutch Slough Tidal Marsh Restoration Project will restore tidal marsh and other habitats on 1,178 acres in the western Delta. The project is expected to benefit sensitive Delta species, including spring- and winter-run Chinook salmon, Sacramento splittail, and California Black Rail.

Dutch Slough
Figure 2: Image of the Dutch Slough Tidal Restoration Project

The Delta ecosystem is naturally dynamic in response to a variable climate and variable river flows. A sustainable Delta ecosystem needs to be large, diverse, and structurally complex to accommodate this variability and sustain native species communities.

A healthy Delta ecosystem requires the re-establishment of tens of thousands of acres of functional, diverse, and interconnected habitat. Restoration projects need to have specific attributes to ensure restoration areas provide ecosystem functions and maximize the effectiveness of individual ecosystem protection, restoration, and enhancement project that together support a resilient, functioning Delta ecosystem. These large-scale priority projects restore hydrological and geomorphic processes, improve connectivity, support native vegetation communities, and contribute to the recovery of special-status species. Funding is needed to implement and support these projects and the multi-benefit projects that go beyond impact mitigation. 
This performance measure tracks the total funding of priority restoration projects proceeding through the Council’s covered action process, according to the definition in the Delta Plan ER Policy “A.” Only projects that are designated as tier 1 or tier 2 projects are tracked in this measure. 

  • Tier 1 projects are projects with all five priority attributes. 
  • Tier 2 projects are projects with priority attribute number five, Contributing to the Recovery of Special Status Species, and three of the four remaining attributes. The priority attributes are further discussed in the section below.

A high-priority attribute project consists of the following:

  1. Restoring Hydrological, Geomorphic, and Biological Processes – Projects targeting the re-establishment of these processes, also known as process-based restoration, are key to improving habitat characteristics related to habitat patches, vegetation community composition, and habitat requirements for sensitive species.
  2. Being Large-Scale – Projects that cover large areas and longer time frames will increase the chances of creating natural systems capable of sustaining desired functions in uncertain future environmental conditions. Large intact core areas with minimal human intervention are important for facilitating ecological interactions that are important to species persistence.
  3. Improve Connectivity – In the Delta, connectivity means unobstructed flow through the channel system such as connections between channels and floodplains and connections between surface water and groundwater. Various aspects of connectivity are important in supporting biodiversity in riparian and wetland systems. Improving connectivity will increase ecosystem resilience and the adaptive potential of a rapidly changing climate.
  4. Increasing Native Vegetation Cover – Restoring native vegetation cover is important as a variety of native vegetation can promote ecological resilience and enhance native biodiversity by providing a range of habitat options for species, thus expanding the types and number of species that a landscape can support. Over the last 160 years, the loss of native vegetation cover has greatly reduced habitat complexity in the Delta.
  5. Contributing to the Recovery of Special Status Species – At least 35 native plant species and 86 fish and wildlife species in the Delta are at varying risks of either local extirpation or outright extinction. Habitat loss and degradation, and the resulting impacts on food-web dynamics, have been a major cause of the at-risk status of these species. Supporting ecosystem functions such as nutrient transfer and primary production is an important requirement for the recovery of these species.

For further information regarding ER Policy “A,” please see Appendix 3A.

Each chapter of the Delta Plan includes strategies to achieve the goals of the Plan. These strategies are general guidance on achieving the objective laid out in the Plan and in the Delta Reform Act of 2009. Associated with these strategies are recommendations. The recommendations describe more specific and implementable actions to support the achievement of Delta Plan strategies. Strategies and recommendations may also have associated performance measures. These performance measures track progress in achieving desired outcomes for the Plan. Below are the strategies and recommendations associated with this performance measure.

  • Restore Ecosystem Function
  • Disclose Contributions to Restoring Ecosystem Function and Providing Social Benefits
  • Increase Public Funding for Restoring Ecosystem Function

Project funding of covered actions that file a certification of consistency under the New ER Policy “A” (Disclose Contributions to Restoring Ecosystem Function). This metric excludes funding for projects that do not include protection, enhancement, or restoration of the Delta ecosystem. This metric will be reported annually.


Set at zero as of the effective date of New ER Policy “A.”


By 2030, 80 percent of total funding for covered action projects that file certifications of consistency with New ER Policy “A” is for projects with Ecosystem Restoration Tier 1 or 2 attributes.

  1. Access the Council’s Covered Action Portal via Administrator access.
  2. Download an excel sheet of all certifications.
  3. Compile certifications that are consistent with ER Policy “A”.
  4. Sum the total funding of those certifications and calculate the percentage of funding of those certifications that have High Tier Attributes.
Data Sources

Covered actions portal

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