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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.

 XYZ Data – ASCII (space delimited) bathymetry sounding data, sorted for minimum depths for printing within a scale dependant plot for data represented within CAD file.

 Hydrographic Surveys, Survey Results / Channel Condition Reports are in PDF format.

Meta Data text file image Metadata file.

Rhode Island Navigation Projects

The Corps has completed 18 navigation projects in Rhode Island. These projects have improved rivers, bays, coves, and harbors that are used by commercial interests, fishermen, and the many recreational boaters that benefit from Rhode Island's intricate and fascinating coastline and its inland waterways. Initial work on many of the projects dates back to the 19th century. However, most of the navigation work in Rhode Island's waterways has been constructed by the Corps within the past 50 years, at an aggregate cost of $33.3 million. Below are the Corps' navigation projects in Rhode Island.
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Publication Date: 1/25/2012
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Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
8/15/2013 
Condition Survey
Complete Project Drawing
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Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/12/2012 
 Condition Survey
 Complete Project Drawing
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 8/15/2013 After Dredge Survey Entrance Channel
 Supplemental Drawing
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Publication Date: 2/3/2010
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Publication Date: 4/12/2013
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Publication Date: 7/10/2009
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Publication Date: 7/8/2013
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1/23/2012
Condition Survey
Complete Project Drawing
Publication Date: 11/6/2009
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Publication Date: 5/30/2012
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Publication Date: 2/4/2011
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Publication Date: 2/15/2012
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Publication Date: 3/2/2005
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Publication Date: 3/2/2012
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Publication Date: 9/14/2012
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Publication Date: 2/4/2010
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Survey Results

DGN File XYZ File Meta Data Master Layout
7/17/2013  
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
9/23/2013
Condition Survey
Complete Project Drawing
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Publication Date: 9/18/2009
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Publication Date: 4/18/2012
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