Status Completed County Santa Cruz
Project Type Non-mitigation Location 36.90567° N, -121.76985° W Map
Project Area (Acres) 12.00 Last Updated 13 April 2022
Project Abstract The project goal is to improve slough circulation, reducing local water quality impacts, establishing a better balance in the sloughs between open water, emergent wetland, and riparian woodland habitat, and providing recreational opportunities for the community of Watsonville through education about the importance of the slough system.
Administrative Region Central Coast Region - Kevin O'Connor, Moss Landing Marine Labs

Project Identification

No Data

Habitat Plan

Site NamePhaseActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
Manabe None Creation/Establishment Unspecified Depressional Wetland Marsh and unvegetated flats 12.00 Construction completed

Related Habitat Impacts

Impact Project NameHabitatAcres LostType of Loss
No Data


Manabe Construction completed 12.00


DateTypeDescriptionSite Name
2009-10-01 Project entered Project entered into database
2008-06-15 Groundwork start Estimated date Manabe
2008-04-01 Groundwork end Estimated date Manabe


Contact Joseph Issel Santa Cruz County Resource Conservation District Not applicable/Unknown


None Creation/Establishment Santa Cruz County Resource Conservation District

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
2015-05-01 6.1 Manabe perennial/seasonal depressional 61
2012-05-11 6.1 Manabe Phase 2 perennial/seasonal depressional 70
2010-06-24 5.0.2 Manabe Phase II (visit 3) perennial/seasonal depressional 64
2008-06-12 5.0.1 Manabe Phase II perennial/seasonal depressional 44
2007-07-10 5.0.1 Manabe Pre-Restoration perennial/seasonal depressional 34
Name File Type Submitted On Submitted By
Aerial Photos Photo 2011-04-28 Sarah Stoner-Duncan, Central Coast Wetlands Group
Biological Assessment Plan Or Permit 2010-12-29 Cara Clark, Moss Landing Marine Laboratories
Manabe Photo Documentation Photo 2010-12-29 Cara Clark, Moss Landing Marine Laboratories
Monitoring Progress Report Monitoring Report 2010-12-29 Cara Clark, Moss Landing Marine Laboratories
Project Description and CEQA Initial Study/Mitigated Negative Declaraion Plan Or Permit 2010-12-29 Cara Clark, Moss Landing Marine Laboratories
Streambed Alteration Permit Application Plan Or Permit 2010-12-29 Cara Clark, Moss Landing Marine Laboratories
Wetland Delineation Plan Or Permit 2010-12-29 Cara Clark, Moss Landing Marine Laboratories

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 ( 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