Hope Valley Meadow Restoration Project

Status In-progress County Alpine
Project Type Non-mitigation Location 38.74586° N, -119.93333° W Map
Project Area (Acres) 3.35 Last Updated 17 March 2016

Project Identification

WDID 6A021506001 SWRCB - 401 Certification Letter (e.g., Site Number or WDID)

Habitat Plan

ActivityHabitatSubHabitatAcresActivity StatusWater Regime
Restoration Seasonal Wetland Floodplain < 0.1 Construction completed Seasonal non-tidal
Restoration Seasonal Wetland Floodplain 3.31 Construction planned Seasonal non-tidal

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data


CDFW Site Construction completed < 0.1
USFS Site In-progress/Implementation 3.31


DateTypeDescriptionSite Name
2015-09-28 Project start date


Contact Julie Fair American Rivers Not applicable/Unknown


No Data

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
2014-09-11 6.1 West Fork Carson River 001 riverine non-confined 85

Performance Criteria

StatusDetailsEvaluation Date
No Data

Project Description

The Hope Valley Meadow Restoration Project is a multi-phase meadow restoration project located in Hope Valley, in the Carson River watershed. The project will restore stream channel on both U.S. Forest Service and California Department of Fish & Wildlife (CDFW ) lands. Specifically, approximately 6,803 feet of streambank will be restored within the Humboldt-Toiyabe National Forest and approximately 130 feet of streambank on land managed by CDFW. Restoration activities will include: stabilizing streambanks using vegetative techniques and sod blocks, as well as a log-crib structure at one especially problematic site; excavating inset floodplain; stabilizing a meander bend that is threatening to cutoff and erode upstream; stabilizing headcuts on tributary channels using vegetative techniques; and creating standing-water depressions for improved fish and bird habitat. The project will reduce erosion and downstream sedimentation, improve water quality and lower water temperatures, reduce peak flows and improve base flows, greatly improve riparian and aquatic habitat and improve overall geomorphic and hydrologic function. Project planning began in 2012, and the first round of implementation on CDFW land was completed in fall 2015. Implementation on USFS land is set to proceed in summer/fall 2016.
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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.

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CRAM Site Scores