Malibu Creek Arundo Removal Project

Status Completed County Los Angeles
Project Type Non-mitigation Location 34.05785° N, -118.69492° W Map
Project Area (Acres) 100.0 Last Updated 13 April 2022
Project Abstract Project cleared Arundo donax from approximately 5.2 miles of stream corridor along Malibu Creek. One of the most destructive forces to wildlands, natural resources, biodiversity and habitat is the invasion and dominance of non-native plant species that alter the indigenous landscape by forming monocultures that suffocate all other plant species.
Project Groups Southern California Wetlands Recovery Project
Administrative Region Southern California Wetland Recovery Project - Katie Nichols, State Coastal Conservancy

Project Identification

00-117-06 SCC - Record Number

Habitat Plan

Site NamePhaseActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
Malibu Creek None Enhancement Vegetation Management Riverine Wetland Riparian area 100.0 Completed

Related Habitat Impacts

Impact Project NameHabitatAcres LostType of Loss
No Data


Malibu Creek Completed 100.0


DateTypeDescriptionSite Name
2003-06-03 Project end date


Contact Rachel Burnap Orange County Not applicable/Unknown
Contact Rachel Burnap Mountains Restoration Trust Not applicable/Unknown


No Data

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
2023-07-14 6.1 R-3 riverine confined 74
2023-07-14 6.1 R-4 riverine confined 69
2023-07-10 6.1 R-13 riverine confined 83
2022-07-26 6.1 SC-MAL-south side bar-built estuarine 69
2022-07-26 6.1 SC-MAL-Station 2 bar-built estuarine 60
2022-06-13 6.1 404M07392 riverine non-confined 76
2021-05-26 6.1 Malibu Creek near Palm Canyon Ln riverine confined 89
2020-07-21 6.1 Malibu Creek downstream of malibu canyon rd. (1st) tunnel riverine confined 83
2019-07-08 6.1 SMC01384 riverine confined 84
2017-07-07 6.1 SMC01384 riverine confined 76
2015-07-23 6.1 Malibu Lagoon #3 bar-built estuarine 61
2015-07-15 6.1 404M07349 riverine confined 84
2015-06-30 6.1 SMC01384 riverine confined 80
2014-06-17 6.1 SMC01384 riverine confined 74
2012-06-20 6.0 Malibu Creek riverine non-confined 84
2011-06-08 5.0.2 Malibu Creek riverine non-confined 75
2010-06-23 5.0.2 Las Virgenes Creek 16168 riverine non-confined 75
2009-07-27 5.0.2 Malibu Creek riverine non-confined 83
2009-05-11 5.0.2 Malibu Creek riverine non-confined 74
2005-10-14 3.55 Malibu ("Cross Creek") riverine non-confined 48

No files found.

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