Sky Ranch Rehabilitation Project

Status Completed County Marin
Project Type Repair/Maintenance Location 37.97704° N, -122.58348° W Map
Project Area (Acres) 0.19 Last Updated 23 January 2019
Project Abstract The Sky Ranch Rehabilitation Project is located at a former horse stable on a tributary to Deer Park Creek in Marin County. The Project seeks to reduce erosion and sedimentation to downstream areas by removing debris from the channel, recontouring the stream banks, and installing native grass seed and erosion control products.

Project Identification

IDType
819879 SWRCB - CIWQS Place Number
2015-00455N USACE - File Number

Habitat Plan

ActivityHabitatSubHabitatAcresActivity StatusWater Regime
Enhancement Upland Grassland < 0.1 Completed None
Enhancement Upland Grassland 0.15 Completed Seasonal non-tidal

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data

Sites

NameStatusAcres
Sky Ranch Rehabilitation Project - Monitoring Area A Completed 0.15
Sky Ranch Rehabilitation Project - Monitoring Area B Completed < 0.1

Events

DateTypeDescriptionSite Name
2018-07-24 Report Annual monitoring report submitted approved by Marin County Parks and Open Space District and forwarded to the RWQCB.
2018-07-01 Monitoring end Year 1 annual monitoring for site stability and revegetation completed.
2018-07-01 Monitoring end Year 1 annual site stability and revegetation monitoring conducted (completed). Sky Ranch Rehabilitation Project - Monitoring Area B
2018-07-01 Monitoring end Year 1 annual site stability and revegetation monitoring conducted (completed). Sky Ranch Rehabilitation Project - Monitoring Area A
2018-06-10 Monitoring start Year 1 annual monitoring for site stability and revegetation conducted.
2016-06-06 Permit Marin County Parks and Open Space District received notice of applicability for enrollment of the Sky Ranch Rehabilitation Project under the Clean Water Act (CWA) Section 401 General Water Quality Certification for Small Habitat Restoration Projects (File No. SB12006GN), Marin County

People

TypeNameOrganizationDepartment
Agency Staff Craig Richardson Marin County Open Space District Not applicable/Unknown

Funding

ActivityFunderAmount
No Data

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data

Performance Criteria

StatusDetailsEvaluation Date
All criteria met Year 3 - Revegetation: Absolute cover of vegetation ≥30 percent. 2018-07-01
All criteria met Year 5 - Revegetation: Absolute cover of vegetation ≥50 percent. 2018-07-01
More than 50% criteria met Year 3 - Invasive Species: Excluding graminoids, absolute cover of non-native vegetation ≤5 percent. 2018-07-01
Less than 50% criteria met Year 1 - Invasive Species: Excluding graminoids, absolute cover of non-native vegetation ≤2 percent. 2018-07-01
All criteria met Year 1 - Revegetation: Absolute cover of vegetation ≥10 percent. 2018-07-01
All criteria met Years 1,3, 5 - Site Stability: 1. No observed signs of significant erosion in the ephemeral drainage (i.e., scarps or scour) that threaten to deliver fine sediment to the creeks. 2. No observed signs of significant erosion and sediment delivery to creeks from the areas of grading (i.e., rills and gullies in/or adjacent to the areas of grading) that threaten to deliver sediment to creeks. 2018-06-10
All criteria met Year 5 - Revegetation: Native species richness of 2 shall be established. 2015-07-01
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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