Hydrographic Surveying

Hydrography is the science of measuring and describing the physical features of bodies of water (NOAA). At Gourdie-Fraser our Hydrographic Surveyors utilize highly specialized equipment to map and bring to life the unseen floors of water bodies. Hydrographic surveying can be as simple as a rock at the end of a rope, or as advanced as large boats carrying inertial measurement units and multi-beam SONAR. GFA owns three Hydrographic Survey Vessels and one remote controlled survey boat, with which we can conduct simpler single beam SONAR surveys to large scale, highly detailed Multi-beam surveys. 

  • Dam monitoring
  • Single & Mutli-Beam Sonar
    • High bathymetric resolution
  • Foundation Scour and Erosion
  • Fleet of boats
    • 16’ outboard manned vessel
    • 16’ Jet boat
    • 24’ Jet Boat
    • Seafloor Echoboat
  • Local, state, and federal agencies as clients
  • 3D survey deliverables
  • Dredging
  • 3D Laser Scanning (Not part of Hydro but something we can do)
  • Accurate dimensioning

Gourdie Fraser, Inc.

123 W Front St
Traverse City, MI   49684

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