Figure 1. Aerial view of the study reach
made to determine if increased sediment movement occurred. The data collected as part of this
monitoring effort were instrumental in answering these questions.
Data Collection: In order to determine the structure/drawdown effect on hydraulic parameters
and sediment movement it was necessary to obtain specific bathymetric, hydraulic, and sediment
data. The different types of data collected are listed. Portions of these data were also intended for
use in eventual verification of three-dimensional (3-D) numerical models.