Marine Services :: Multibeam Bathymetric Surveys
Willamette River Sediment Transport Monitoring
Willamette Valley, OR
DEA conducted a series of high resolution multibeam bathymetric surveys and Acoustic Doppler Current Profiling (ADCP) surveys in support of the Remedial Investigation/Feasibility Study to evaluate the transport of contaminated sediments in the Willamette River. Areas of deposition and erosion were clearly defined by running a difference analysis between subsequent surveys. Data was also used for input in and calibration and verification of a hydrodynamic sedimentation model that was created to better understand surface sediment transport within the system after major flooding events.