Topic outline

  • Rock Materials - NRCS Field Classification System

    Credits: 1 PDH

    PDH Course Description:

    The NRCS uses the Rock Material Field Classification (RMFC) system to classify rock and assess rock performance for a variety of engineering applications concerning rock formations. The system is designed for use by personnel trained in its use and knowledgeable of its limitations. It is particularly suited to describing rock material in support of NRCS engineering activities at the reconnaissance and preliminary (planning) levels.

    Classification (by any system) alone does not preclude or replace laboratory testing for specific engineering design purposes.

    Topics:

    • Rock material field classification system
    • History of RMFC system
    • The rock unit
    • Outcrop confidence level
    • Classification elements
    • Classification process
    • Evaluating earth material for excavation  
    • Ripping index method

    To take this course:

    1.) Enroll in Course:
    Click below to enroll:
    (must be logged into your user account)


    2.) Study: Once enrolled, click below to begin the course:

    Download the Study Guide

    3.) Test: Once you've thoroughly read the course materials, please click below to take the final examination.

    Take the final exam

    4.) Certificate: A passing grade of 70% or higher on the exam, is required to receive the certificate of completion for this PDH course.
         NOTE: After the exam is completed, you will need to return to this page, in order to print (download) the certificate of completion.

    Print the Certificate of Completion

    Intended Audience: primarily for geotechnical, geological, civil, construction, environmental, and hydraulic engineers.
    Publication Source: USDA (NRCS)

    Donald Parnell, PE

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    • Topic 2