Surveys & Wrecks  
  Hydrographic Products  
     •   Survey Data  
     •   Wrecks and Obstructions  
  Standards and Requirements  
     •   Field Procedures Manual  
     •   Specifications and Deliverables  
     •   XML Hydrographic Reports  
     •   Hydrographic Survey Manual  
     •   IHO Standards  
     •   Survey Vessels  
     •   Hydrographic Survey Priorities  
     •   Contract Hydrographic Surveys  
  Learn About Hydrography  
     •   What is Hydrographic Surveying?  
     •   History of Hydrographic Surveying  
     •   Side Scan Sonar  
     •   Multibeam Echo Sounders  
     •   LIDAR  
     •   Horizontal & Vertical Positioning  
     •   Dangers to Navigation: Notice to Mariners  

Wrecks and Obstructions (AWOIS)
 Digital terrain model showing submerged wreck on ocean bottom surrounded by bottom scouring. The Office of Coast Survey's Automated Wreck and Obstruction Information System (AWOIS) contains information on over 10,000 submerged wrecks and obstructions in the coastal waters of the United States. Information includes latitude and longitude of each feature along with brief historic and descriptive details.
  •   Download AWOIS Data

  •   AWOIS Users Guide
  •   Shipwreck Links

In addition to its use in planning hydrographic surveys, AWOIS is a valuable tool and information source for marine archaeologists and historians, fishermen, divers, salvage operators, and others in the marine community.

Once you download an AWOIS file, you can open that file directly in a mapping application, such as Google Earth or Google Maps. You can then navigate directly to your area of interest and obtain information about individual features. Clicking on any AWOIS item will bring up additional information, such as feature type, position, and history.

AWOIS Limitations

  • AWOIS records are not comprehensive. There are wrecks in AWOIS that do not appear on the nautical chart and wrecks on the nautical chart that do not appear in AWOIS.
  • Updates to AWOIS are ongoing, with an emphasis on wrecks that may be hazards to navigation.
  • Reported wrecks that have been salvaged or disproved by further investigation are not included in AWOIS.

Multibeam digital terrain model and profile of a submerged pipe in Baltimore, MD Side scan sonar picture of wreck near Solomons Island, MD.
Multibeam DTM of unidentified aircraft in Chesapeake Bay  
User Survey  | Privacy Policy  |  Disclaimer  |  NOAA's National Ocean Service  |  NOAA  |  U.S. Department of Commerce 
Web site owner: NOAA Office of Coast Survey