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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.

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