Topic outline

  • Use of Articulating Concrete Block Revetment Systems for Stream Restoration and Stabilization

    Credits: 2 PDH

    PDH Course Description:

    A variety of natural and manufactured materials can provide erosion protection for stream restoration and stabilization projects. One of these products is the articulating concrete block (ACB) revetment system. An ACB revetment system is a matrix of interconnected concrete block units installed to provide an erosion resistant revetment with specific hydraulic characteristics. It is static protection and is applicable in high risk applications where no additional bank or grade movement is allowable. This course describes the ACBs currently available and some of the benefits of their use. The system consists of concrete blocks, a filter (typically a geotextile), and cables in some products.

    A summary of testing for hydraulic performance is presented along with a design procedure for open channel flow. Critical installation features are described for typical installations including subgrade preparation, ancillary components (such as drainage layers), filter placement, ACB placement, system termination, anchors, and penetrations

    Topics:

    • Applications of ACB Revetment Systems
    • Materials: blocks geotextiles, connections, granular filter
    • Performance testing and evaluation
    • Design procedures
    • Specifying ACB revetment systems
    • Installation procedures
    • Subgrade preparation
    • Placement of the ACB
    • Anchor penetrations
    • 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 River, Geotechnical, Civil, Environmental, Water Resources, and other engineers whose job description requires a comprehensive knowledge of stream restoration and design principles and procedures.

    Publication Source: US NRCS

    Donald Parnell, PE
    • Topic 1