Alameda Creek Fish Screens at ACWD Diversions

Status Unknown County Alameda
Project Type Non-mitigation Location 37.57157° N, -121.97821° W Map
Project Area (Acres) No Data Last Updated 13 March 2017

Project Identification

IDType
825 JV - Record Number

Habitat Plan

ActivityHabitatSubHabitatAcresActivity StatusWater Regime
Enhancement Unknown/unspecified habitat None No Data Unknown/Unspecified

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data

Sites

NameStatusAcres
Alameda Creek Fish Screens at ACWD Diversions Unknown/Unspecified No Data

Events

DateTypeDescriptionSite Name
2013-06-01 Project start date

People

TypeNameOrganizationDepartment
Contact Jeff Miller Alameda Creek Alliance Not applicable/Unknown
Partner Tim Ramirez San Francisco Public Utilities Commission Not applicable/Unknown

Funding

ActivityFunderAmount
Enhancement CDFW Fisheries Restoration Grant Program $445,000

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data

Performance Criteria

StatusDetailsEvaluation Date
No Data

Project Description

Description
The Kaiser Pond Fish Screen project includes the construction a new diversion pipeline and cylindrical fish screen that will replace an existing unscreened water diversion. The fish screen system will consist of one self-cleaning cylindrical screen with a track system on a concrete pad along the bank of the Alameda Creek Flood Control Channel (ACFCC) and will prevent juvenile steelhead trout from being trapped in Kaiser Pond. The screen system and diversion intake will be used to divert water from the ACFCC to Kaiser Pond. The project also includes security fencing, controls, and slight modification of the trail around the facility. The Shinn Pond Fish Screen project includes the construction of new diversion pipelines and cylindrical fish screens that will replace the existing unscreened diversion pipes. The fish screen system will consist of several self-cleaning cylindrical screens with a track system on concrete pads along the bank of the Alameda Creek Flood Control Channel and will prevent juvenile steelhead trout from being trapped in Shinn Pond. The screened diversion facility will be used to divert water from the ACFCC to Shinn Pond. The project also includes security fencing, controls, and modification of the trail around the facility.
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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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