Topic outline

  • Stone Sizing Criteria for Riprap

    Credits: 1 PDH

    PDH Course Description:

    Many channel protection techniques involve rock or stone as a stand-alone treatment or as a component of an integrated system. Stone used as riprap can also be a component of many streambank soil bioengineering projects. Many Federal and state agencies have developed methods and approaches for sizing riprap, and several of those techniques are briefly described in this course.

    Stone sizing methods are normally developed for a specific application, so care should be exercised in matching the selected method with the intended use. While many of these were developed for application with stone riprap revetments, they are also applicable for other designs involving rock, as well.

    Topics:

    • Basic concepts
    • Description of forces on a stone
    • Flow conditions
    • Sizing techniques
    • Summary guide of selected techniques
    • Factor of safety
    • Example calculations

    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: This course is intended for Hydraulic, River, Geotechnical, Civil, Environmental, Water Resources, and other engineers whose job description requires a knowledge of riprap applications and design procedures.
    Publication Source: US NRCS

    Donald Parnell, PE

    • Topic 1