
Lower Mississippi River Precision Navigation Surveys
DEA Marine Services performed hydrographic surveys of approximately 260 miles of the lower Mississippi River in support of NOAA Office of Coast Survey’s Precision Charting Initiative.
DEA Marine Services performed hydrographic surveys of approximately 260 miles of the lower Mississippi River in support of NOAA Office of Coast Survey’s Precision Charting Initiative.
Since 2018, DEA Marine Services has provided hydrographic surveying and geoscientific consulting services as part of the Upper Columbia River Remedial Investigation and Feasibility Study.
DEA conducted a series of high resolution multibeam bathymetric surveys and Acoustic Doppler Current Profiling surveys in support of the Remedial Investigation/Feasibility Study to evaluate the transport of contaminated sediments in the Willamette River.