Navigation

  • Dredging — Determine top of rock, rock diggability & contaminated sediments
  • Hydrography — Measure multibeam & single-beam bathymetry
  • Sedimentation — Determine recent-sediment thickness & sedimentation rates
  • Obstructions — Locate & describe boulders, utilities, abutments & debris
  • Materials separation — Estimate extent & thickness of industrial sediments
  • Diggability — Estimate rippability from seismic imaging & test digs
  • Rock blasting — Monitor vibrations & review procedures
  • Acceptance surveys — Sonar & electromagnetic surveys postconstruction
  • Safety surveys — Sonar & electromagnetic surveys before & during drilling & digging
  • Accident investigations — Determine underwater objects & positions