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 Introduction
1.1 PURPOSE
Bank stabilization structures are often considered to be very simple features requiring
very little planning and design effort. However, the hydraulic and geomorphic processes
associated with these structures are as complex and challenging as those of many of the more
elaborate hydraulic structures, and in many cases their design is even more complicated due
to the lack of definitive design guidance. This manual is designed to provide general guidance
for the design, construction, and monitoring of streambank protection projects. It also
introduces the reader to the basic concepts of channel stability, and procedures for
understanding and analyzing stream processes.
1.2 SCOPE
There are hundreds of different types of possible bank stabilization techniques which
are used on a wide range of stream types and physical environments ranging from the
Mississippi River to small ephemeral streams draining only a few square miles. A range of
structure types and applications is presented, from traditional techniques such as riprap bank
paving, stone dikes, and retards, to the low-cost and innovative techniques such as bendway
weirs, and bio-engineering measures. This is a comprehensive manual covering a wide range
of techniques and design guidance that will be of benefit to all groups, large or small,
undertaking a streambank protection project. Whenever possible, layman's language is used
in this manual, so that the information and guidance contained herein can be utilized by the
broadest possible audience.
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