Backwater at bridges and densely wooded flood plains, Bogue Chitto near Summit, Mississippi

New techniques for predicting water-surface profiles, needed in the design of economical, structurally sound, and environmentally compatible stream crossings, are under investigation.  The investigation has accelerated with the advent of digital computers capable of analyzing large quatities of data.  Among the techniques is the development of two-dimensional (2-D) digital models.  Field data are essential for development and evaluation of these techniques for predicting water-surface profiles.  This atlas is one of a series that provide a wide range of field data.