CA FLAP INYCR2022(1) South Lake Road

Status Completed County Inyo
Project Type Repair/Maintenance Location 37.22096° N, -118.56774° W Map
Project Area (Acres) < 0.1 Last Updated 13 April 2023
Project Abstract Purpose of project is to rehabilitate South Lake Road, a county-owned road, for 6.9 miles, and widen 2.1 miles for a shared use shoulder,. This project will provide overall improved access to the Bishop Creek canyon and South Lake within the Inyo National Forest, which are high use and high economic generating Federal Lands destinations.
Administrative Region Lahontan Regional Water Quality Control Board - Tiffany Steinert, Jan Zimmerman, Elizabeth van Diepen, LRWQCB

Project Identification

2017021029 SCAG - Clearinghouse Number
6B141801001 SWRCB - 401 Certification Letter (e.g., Site Number or WDID)
SPL-2018-00027-GLH USACE - DA File Number

Habitat Plan

Site NamePhaseActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
South Lake Road Implementation Restoration/Re-establishment None None < 0.1 Completed

Related Habitat Impacts

Impact Project NameHabitatAcres LostType of Loss
No Data


South Lake Road Completed < 0.1


DateTypeDescriptionSite Name
2020-11-02 Project end date Project completed
2020-05-12 Project start date Project broke ground and erosion and sediment control measures were installed.


Partner Courtney Smith Inyo County Public Works Department Transportation
Agency Staff Gerardo Hidalgo U.S. Army Corps of Engineers Not applicable/Unknown
Agency Staff Jim Carolan Lahontan Regional Water Quality Control Board Not applicable/Unknown
Contact Wendy Longley U.S. Department of Transportation, Federal Highway Administration Not applicable/Unknown


Funding Need: $9,500,600

No Data

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data
Name File Type Submitted On Submitted By
Culvert photos Photo 2020-10-20 Tiffany Steinert, Lahontan Regional Water Quality Control Board
Pre- and Post-construction photos Photo 2020-10-20 Tiffany Steinert, Lahontan Regional Water Quality Control Board

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