NOTE: Surveys shown are the most recent available. For information regarding previous surveys, contact the Navigation Section.
Hydrographic surveys are in Bentley Microstation V8i DGN format. Click on the self extracting ZIP file below and save to your hard drive. Open the survey in your CADD Software Product or Bentley (Free) View software. See Bentley website to obtain free viewer.
NOTE: Hydrographic surveys without a DGN file were most recently processed through eHydro using ArcGIS software. More information about eHydro products can be found in this PowerPoint.
XYZ Data – ASCII (space delimited) bathymetry sounding data, sorted for minimum depths for printing within a scale dependent plot.
Hydrographic Surveys, Survey Results / Channel Condition Reports are in PDF format.