Upper Truckee River and Marsh Restoration Project

Status In-progress County El Dorado
Project Type Non-mitigation Location 38.93406° N, -119.99480° W Map
Project Area (Acres) 612.2 Last Updated 13 April 2022
Project Abstract Restore natural hydrologic processes and functions in the marsh by constructing pilot channels and spreading flow over the marsh. Increase area of SEZ and associated habitat types. Reduce sediment sources and increase sediment deposition and filtering particularly in high flow events. Construct improvements to support and direct public access.
Project Groups CDFW Prop 1 | Sierra Meadows Partnership
Administrative Region Lahontan Regional Water Quality Control Board - Tiffany Steinert, Jan Zimmerman, Elizabeth van Diepen, LRWQCB

Project Identification

6A091911001 SWRCB - 401 Certification Letter (e.g., Site Number or WDID)

Habitat Plan

Site NamePhaseActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
Upper Truckee River and Marsh Restoration Project None Restoration/Rehabilitation Sediment Management Riverine Wetland Riparian area 612.2 Construction in-progress Riparian

Related Habitat Impacts

Impact Project NameHabitatAcres LostType of Loss
No Data


Upper Truckee River and Marsh Restoration Project Construction in-progress 612.2


DateTypeDescriptionSite Name
2020-06-30 Groundwork start Installation of the sheetpile turbidity curtain
2013-09-01 Project entered Project entered into database
2013-05-20 Project submitted Project submitted


Contact California Tahoe Conservancy Not applicable/Unknown
Contact Scott Carroll California Tahoe Conservancy Not applicable/Unknown


Funding Need: $550,000

None Restoration/Rehabilitation California Tahoe Conservancy $8,558,124
None Restoration/Rehabilitation WCB Wildlife Conservation Board $2,980,000
None Restoration/Rehabilitation CDFW Prop 1 - Watershed Restoration Grant Program $1,700,066
None Restoration/Rehabilitation U.S. Army Corps of Engineers $1,600,000
None Restoration/Rehabilitation USFS Southern Nevada Public Land Management Act $1,162,000
None Restoration/Rehabilitation CDFW California Department of Fish and Wildlife $895,000
None Restoration/Rehabilitation USFS U.S. Forest Service $450,000
None Restoration/Rehabilitation USBR U.S. Bureau of Reclamation $450,000
None Restoration/Rehabilitation U.S. Environmental Protection Agency $154,900

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
2018-08-23 6.1 Upper Truckee Marsh - upper channeled wet meadow 81
2018-08-14 6.1 Trout Creek marsh channeled wet meadow 88
2017-10-11 6.1 Tahoe1330. Upper Truckee Marsh channeled wet meadow 81
2017-09-14 6.1 Tahoe1039.Dover Street non-channeled wet meadow 65
2017-08-15 6.1 UTR Corps Yard riverine non-confined 72
2016-08-22 6.1 UTR Michael Street riverine non-confined 69
2016-08-22 6.1 UTR Tahoe Keys riverine non-confined 75
2016-08-22 6.1 UTR Venice Ave riverine non-confined 61
2016-08-22 6.1 UTR Corps Yard riverine non-confined 67
2016-08-03 6.1 Tahoe1309. Upper Truckee Marsh forested slope 87
2011-08-11 5.0.2 UTR Michael Street Reach riverine non-confined 72
2011-08-11 5.0.2 UTR Tahoe Keys riverine non-confined 77

Performance Criteria

StatusDetailsEvaluation Date
Original criteria not recorded 2013-05-20
Name File Type Submitted On Submitted By
CTC Project Link Other 2016-01-21 Jen Greenberg, California Tahoe Conservancy
EIP Reporting Tool Project Link Other 2016-01-21 Jen Greenberg, California Tahoe Conservancy

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