Riprap Design

At the conclusion of the course, you will:

• Be able to identify the four different failure modes for riprap and will understand what causes each failure mode.
• Understand the different types of riprap, including rock riprap, rubble riprap, wire-enclosed rock, pre-formed block and grouted rock, including the advantages and disadvantages of each type.
• Understand how flow type, section geometry, channel bends and flow resistance affect the design of riprap revetments.
• Understand how to determine the longitudinal and vertical extent of riprap revetments and the necessary toe depth.
• Understand how to compute the necessary size of rock, gradation and layer thickness to use for riprap revetments.
• Understand how to compute whether a filter is necessary under the riprap and how to design a filter.

This course includes a test at the end of each section to gauge your understanding of the material.