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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.

Maine Navigation Projects

The Corps has completed 66 navigation projects in Maine. These projects have improved rivers, bays, coves, and harbors that are used by commercial interests, fishermen, and the many recreational boaters that benefit from the intricate and fascinating Maine coastline. Initial work on many of the projects dates back to the early 19th century. However, much of the navigational work in today's waterways has been constructed by the Corps within the past 50 years, costing an aggregate $29.7 million. Below are the Corps' navigation projects in Maine.
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12/9/1987 

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Publication Date: 12/6/1993
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Publication Date: 8/17/2011
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Publication Date: 5/25/2012
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Publication Date: 5/21/2012
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Publication Date: 5/23/2011
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Publication Date: 6/7/2012
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Publication Date: 5/1/1995
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Publication Date: 9/7/2012
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Publication Date: 7/22/2013
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Publication Date: 6/11/2012
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Publication Date: 1/18/2013
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Publication Date: 6/25/2010
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Publication Date: 1/26/1995
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Publication Date: 5/25/2012
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Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
11/22/2013
Condition Survey
Complete Project Drawing
Publication Date: 6/22/2012
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Publication Date: 8/2/2004
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Publication Date: 6/15/2004
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Publication Date: 10/7/2008
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Publication Date: 6/1/1967
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Publication Date: 6/15/2012
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Publication Date: 5/15/2008
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Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
9/24/2013
Popham Beach Rch - Condition Survey
Complete Project Drawing
   
9/24/2013 Doubling Point Rch - Condition Survey
Complete Project Drawing
  
1/5/2012 Bath to Richmond - Condition Survey
Complete Project Drawing
4/7/2011 Richmond to Gardiner-Condition Survey
Complete Project Drawing
7/10/2007 Gardiner to Augusta - Condition Survey
Complete Project Drawing
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
8/15/2013 
Condition Survey
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Publication Date: 8/25/2004
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Publication Date: 5/7/2005
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Publication Date: 3/13/2007
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Publication Date: 9/1/1977
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Publication Date: 2/2/2010
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8/15/2013
Condition Survey
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Publication Date: 12/5/2011
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Publication Date: 12/14/2010
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Publication Date: 12/1/1989
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Publication Date: 3/30/2004
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 4/04/2014 
Portland Harbor - Main Ship Channel Supplemental - After Dredge Survey
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9/14/2011  Portland Harbor - Main Ship Channel Condition Survey Meta Data text file image
9/14/2007  Portland Harbor - Approach Channel & Anchorage Condition Survey Meta Data text file image
1/22/2004 Portland Harbor - Back Cove    Condition Sweep Survey Meta Data text file image
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4/9/2007
Condition Survey
Complete Project Drawing
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3/27/2013 After Dredge / Condition Survey
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8/7/2013 Back Channel / Sagamore Creek Condition Survey
Complete Sub-Project Drawing
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Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
8/28/2013
Condition Survey
Complete Project Drawing
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12/20/2013
Condition Survey
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Publication Date: 12/5/2011
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Publication Date: 6/27/2013
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Publication Date: 6/1/2010
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Publication Date: 4/11/2013
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Publication Date: 11/18/2009
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Publication Date: 10/19/2012
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Publication Date: 6/17/2011
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Publication Date: 4/27/2012
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Publication Date: 4/23/2007
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Publication Date: 5/25/2012
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Publication Date: 9/28/2012
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2/28/2014
Condition Survey
Complete Project Drawing
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3/11/2014
 After Dredge Survey
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Publication Date: 5/17/2002
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Publication Date: 1/26/2012
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Publication Date: 4/26/2012
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