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Green technologies for reducing slope erosion.
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  • Abstract:
    As climate change alters precipitation patterns, departments of transportation will increasingly face the problem of

    slope failures, which already cost California millions of dollars in repair work annually. Caltrans hopes to prevent

    these failures by implementing the latest vegetative and soil-based solutions for reducing the volume of highway

    stormwater runoff on slopes and in water conveyance systems.

    Caltrans staff requested a Preliminary Investigation to identify innovative strategies for reducing the risk of roadside

    slope erosion. We reviewed recent research, national guidance and related efforts of other state DOTs, focusing on

    Low Impact Development technologies; emerging “green” solutions; and biotechnical guidance related to slope

    design, soil engineering, and vegetation selection and management.

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