Upper SLO Creek Dam Removal

Status Completed County San Luis Obispo
Project Type Non-mitigation Location 35.32330° N, -120.62270° W Map
Project Area (Acres) 0.25 Last Updated 11 August 2016

Project Identification

704220 CDFW - Fisheries Restoration Grant

Habitat Plan

ActivityHabitatSubHabitatAcresActivity StatusWater Regime
Enhancement Riverine Wetland Riparian area 0.25 Construction completed

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data


San Luis Obispo Creek Construction completed 0.25


DateTypeDescriptionSite Name
2011-04-01 Report Monitoring Report issued
2009-10-01 Project entered Project entered into database
2008-01-01 Monitoring end Estimated date San Luis Obispo Creek
2003-01-17 Groundwork end Estimated date San Luis Obispo Creek
2003-01-17 Monitoring start Estimated date San Luis Obispo Creek
2001-01-01 Groundwork start Estimated date San Luis Obispo Creek


Contact Fred Otte City of San Luis Obispo Not applicable/Unknown


Enhancement CDFW Prop 1 - Delta Water Quality and Ecosystem Restoration Grant Program

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data

Performance Criteria

StatusDetailsEvaluation Date
No Data

Project Description

Restore steelhead access to approximately 1 1/2 miles of instream habitat by the removal of a Non-functional water diversion dam, and restoring the original stream gradient. The objective of the project was to restore access for migrating fish to over one mile of potential spawning habitat located above the dam, which was acting as an impassable barrier to fish passage. This involved: Partial removal of the dam, Construction of 20 rock weirs to provide gradient control both in the main channel and a tributary, Channel fill/excavation above and below the dam, Removal of one bay tree, Installation of planted coir fiber logs at bank slopes; and the installation of erosion control blankets and hydro-seeding on newly graded bank slopes (given the dense shade of the site, there was No requirement for tree plantings, other than for four small bay trees), and Hand working of rock weirs.
Upload files or links
Name File Type Submitted On Submitted By
Monitoring Report Monitoring Report 2011-04-12 Sarah Stoner-Duncan, Central Coast Wetland Group
San Luis Creek dam removal.doc

Year 3 Monitoring Report for the San Luis Obispo Creek Dam Removal and Steelhead Passage Enhancement Project

Year 3 Monitoring Report for the San Luis Obispo Creek Dam Removal and Steelhead Passage Enhancement Project Monitoring Report 2010-03-19 Cara Clark, Moss Landing Marine Laboratories
San Luis Creek dam removal.doc

Stagecoach Dam.JPG

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