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Marine Services :: Marine Design and Construction Support

Consistent, precise, and accurate data are vital to the success of any project, but critical for projects being constructed in marine environments. DEA frequently conducts surveys in support of the permitting, environmental impact studies, design, construction and post-construction inspection phases of marine projects in offshore, near-shore, and inland waters.

Services for marine design and construction are customized to address project objectives and may include:

  • Desktop studies of existing data
  • Data integration and meshing of existing and newly acquired data
  • Vessel traffic studies
  • High-resolution multibeam seafloor mapping
  • Side scan sonar seafloor imaging
  • Sub-bottom profiling to map soft sediments
  • Seismic reflection profiling to map geologic units
  • Magnetic and inducted tone tracking surveys to locate pipelines, cables, or wrecks
  • Tide and current studies
  • Sediment sampling
  • Acoustic monitoring during pile driving
  • Underwater positioning and monitoring during construction
  • Geospatial services for mapping and modeling

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