Dutch Slough Tidal Marsh Restoration Project

Status In-progress County Contra Costa
Project Type Non-mitigation Location 38.00520° N, -121.68576° W Map
Project Area (Acres) 1,187 Last Updated 28 October 2021
Project Abstract This project will restore or enhance tidal marsh, open tidal water, riparian woodland, grassland, and managed marsh habitats on formerly diked agricultural lands. Project goals include restoring a functioning ecosystem, increasing wildlife habitat, and providing flood protection and recreational opportunities.
Project Groups DeltaView | EcoRestore | San Francisco Bay Restoration Authority (Eligible)

Project Identification

DWR-163 DeltaView - Project ID

Habitat Plan

Site NamePhaseActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
Burroughs Parcel - Phase 2 None Restoration/Rehabilitation Bay Habitat (SFBJV Only) Tidal marsh 447.0 Construction planned Fully tidal
Emerson Parcel - Phase 1 None Acquisition/Preservation/Protection Bay Habitat (SFBJV Only) Tidal marsh 1,187 Completed Unknown/Unspecified
Emerson Parcel - Phase 1 None Restoration/Rehabilitation Bay Habitat (SFBJV Only) Tidal marsh 426.0 Implementation in-progress Mixed
Gilbert Parcel - Phase 1 None Restoration/Rehabilitation Bay Habitat (SFBJV Only) Tidal marsh 305.0 Implementation in-progress Mixed

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data


Burroughs Parcel - Phase 2 In-progress/Implementation 447.0
Emerson Parcel - Phase 1 In-progress/Implementation 1,613
Gilbert Parcel - Phase 1 In-progress/Implementation 305.0


DateTypeDescriptionSite Name
2021-09-01 Other Phase 1 revegetation planting started late 2019, ended in 2021. Emerson Parcel - Phase 1
2019-11-15 Groundwork end Phase 1 construction (started in 2018) was completed late in 2019. Emerson Parcel - Phase 1
2018-05-15 Groundwork start Phase 1
2008-11-01 Project entered Project entered into database
2003-01-01 Other DWR purchased Dutch Slough


Contact Patricia Finfrock California Department of Water Resources FESSRO
Contact Katie Bandy California Department of Water Resources Not applicable/Unknown


Funding Need: $24,750,000

None Restoration/Rehabilitation City of Oakley
None Restoration/Rehabilitation California Bay-Delta Authority
None Restoration/Rehabilitation Natural Heritage Institute
None Restoration/Rehabilitation CDWR California Department of Water Resources $32,400,000
None Acquisition/Preservation/Protection CALFED Bay-Delta Program $28,000,000
None Restoration/Rehabilitation CDFW California Department of Fish and Wildlife $5,800,000
None Restoration/Rehabilitation Sacramento-San Joaquin Delta Conservancy $2,900,000
None Restoration/Rehabilitation SCC State Coastal Conservancy $2,750,000
None Restoration/Rehabilitation U.S. Environmental Protection Agency $1,400,000
None Restoration/Rehabilitation USFWS U.S. Fish and Wildlife Service $1,000,000

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data
Name File Type Submitted On Submitted By
Construction to Begin on Dutch Slough Restoration Project Other 2018-04-09 Cristina Grosso, San Francisco Estuary Institute

How to Use the Habitat Development Curve

Habitat Development Curves (HDCs) are used to determine the developmental status and trajectory of on-the-ground projects to create, restore, or enhance California wetland and stream habitats. Each HDC is based on assessments of habitat condition for different age areas of one habitat type that in aggregate represent the full spectrum of habitat development. The assessments of condition are provided by expert applications of the California Rapid Assessment Method (CRAM). Visit the CRAM website for more information about CRAM.

For each HDC, reference condition is represented by areas of a habitat that consistently get very high CRAM scores, have not been subject to disruptive management practices, and exist within landscapes that are protected and managed for their natural conditions. The horizontal lines intersecting the top of an HDC represent the mean CRAM score and standard deviation of scores for 25 qualifying reference areas.

The age of a project is estimated as the elapsed time in years between the groundwork end date for the project and the date of the CRAM assessment. To add or update a groundwork end date, use the Project Events form in Project Tracker (ptrack.ecoatlas.org). The minimum age in years of a non-project area, including any natural reference area, is estimated from all available local information, including historical maps and imagery, historical written accounts, and place-specific scientific studies of habitat development.

An HDC can be used to address the following questions:

  1. At what time in the future will the area of assessed habitat achieve the reference condition or other milestones in habitat development? The HDC can answer this question if the CRAM score for the assessed area is within the confidence interval of the HDC. The answer is the time in years along the HDC between the current age of the assessed area and the future date corresponding to the intersection of the HDC and the reference condition or other milestone.
  2. Is the area of assessed habitat likely to develop faster, slower, or at the same pace as most other areas of the same habitat type? The habitat area is likely to develop faster, slower, or at the same pace if the CRAM score for the area is above, below, or within the confidence interval of the HDC, respectively.
  3. What can be done to improve the condition of the habitat area or to increase its rate of development? HDCs by themselves cannot answer this question. Possible answers can be inferred by the following analysis that involves HDCs:
    1. Examine the HDC for each of the four CRAM Attributes;
    2. Identify the Attribute(s) scoring below the HDC;
    3. For any low-scoring Attribute, examine the component Metric Scores (note: the Metric Scores for any public CRAM assessment in the CRAM database can be obtained through EcoAtlas);
    4. Assume the low score of an Attribute is due to its low-scoring Metric(s);
    5. Consider modifying the design or management of the habitat area in ways that will sustainably increase its score(s) for the low-scoring Metric(s).

For more information about CRAM Attributes and Metrics, including their scientific rationale, see the CRAM Manual.

Display Habitat Development Curves For Wetland Type:

CRAM Site Scores