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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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Click here to expand contentClick here to collapse content  Bagaduce River
Publication Date: N/A
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Click here to expand contentClick here to collapse content  Bar Harbor
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12/9/1987 
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Click here to expand contentClick here to collapse content  Bass Harbor Bar
Publication Date: 12/6/1993
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Click here to expand contentClick here to collapse content  Bass Harbor
Publication Date: 8/17/2011
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Click here to expand contentClick here to collapse content  Beals Harbor
Publication Date: 5/25/2012
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Click here to expand contentClick here to collapse content  Belfast Harbor
Publication Date: 5/21/2012
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Click here to expand contentClick here to collapse content  Bucks Harbor
Publication Date: 5/23/2011
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Click here to expand contentClick here to collapse content  Bucksport Harbor
Publication Date: 6/7/2012
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Click here to expand contentClick here to collapse content  Bunker Harbor
Publication Date: 5/1/1995
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Click here to expand contentClick here to collapse content  Camden Harbor
Publication Date: 9/7/2012
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Click here to expand contentClick here to collapse content  Cape Porpoise Harbor
Publication Date: 7/22/2013
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Click here to expand contentClick here to collapse content  Carvers Harbor
Publication Date: 6/11/2012
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Click here to expand contentClick here to collapse content  Cathance River
Publication Date: 1/18/2013
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Click here to expand contentClick here to collapse content  Cobscook Bay | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
11/4/2014
 Reconn Survey
Complete Project Drawing
N/A
Click here to expand contentClick here to collapse content  Corea Harbor
Publication Date: 6/25/2010
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Click here to expand contentClick here to collapse content  Criehaven Harbor
Publication Date: 1/26/1995
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Click here to expand contentClick here to collapse content  Damariscotta River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
10/21/2014
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Deer Island Thoroghfare
Publication Date: 5/25/2012
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Click here to expand contentClick here to collapse content  Frenchboro Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
11/22/2013
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Georges River
Publication Date: 6/22/2012
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Click here to expand contentClick here to collapse content  Harraseeket River
Publication Date: 8/2/2004
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Click here to expand contentClick here to collapse content  Hendricks Harbor
                        
Publication Date: 6/15/2004
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Click here to expand contentClick here to collapse content  Isle Au Haut Thoroughfare
Publication Date: 10/7/2008
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Click here to expand contentClick here to collapse content  Isles of Shoals Harbor
Publication Date: 6/1/1967
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Click here to expand contentClick here to collapse content  Jonesport Harbor
Publication Date: 6/15/2012
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Click here to expand contentClick here to collapse content  Josias River | Project Map | Master Layout Plan  
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
9/4/2014
Condition Survey
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Click here to expand contentClick here to collapse content  Kennebec River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
11/14/2016   Phippsburg to Bath - Condition Survey
 Supplemental Project Drawing
5/1/2014 
 Phippsburg to Bath - 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
Click here to expand contentClick here to collapse content  Kennebunk River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
8/15/2013 
Condition Survey
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5/8/2014  Condition Survey
 Supplemental Project Drawing 
Click here to expand contentClick here to collapse content  Lubec Channel
Publication Date: 8/25/2004
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Click here to expand contentClick here to collapse content  Machias River
Publication Date: 5/7/2005
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Click here to expand contentClick here to collapse content  Matinicus Harbor
Publication Date: N/A
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Click here to expand contentClick here to collapse content  Medomak River
Publication Date: 3/13/2007
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Click here to expand contentClick here to collapse content  Moosabec Bar
Publication Date: 9/1/1977
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Click here to expand contentClick here to collapse content  Narraguagus River
Publication Date: 2/2/2010
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Click here to expand contentClick here to collapse content  New Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
8/15/2013
Condition Survey
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Click here to expand contentClick here to collapse content  Owls Head Harbor
Publication Date: 12/5/2011
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Click here to expand contentClick here to collapse content  Penobscot River
Publication Date: 12/14/2010
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Click here to expand contentClick here to collapse content  Pepperell Cove | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
4/18/2014
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Pig Island Gut | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
9/19/2014
Condition Survey
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Click here to expand contentClick here to collapse content  Pleasant River
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Click here to expand contentClick here to collapse content  Portland Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
 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
Click here to expand contentClick here to collapse content  Portsmouth Harbor and Piscataqua River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
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		 Meta Data text file image
Click here to expand contentClick here to collapse content  Richmond Harbor | Project Map
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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Click here to expand contentClick here to collapse content  Richmond Island Harbor
Publication Date: N/A
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Click here to expand contentClick here to collapse content  Rockland Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/20/2013
Condition Survey
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Click here to expand contentClick here to collapse content  Rockport Harbor
Publication Date: 12/5/2011
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Click here to expand contentClick here to collapse content  Royal River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/11/2015
After Dredge Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Saco River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/22/2016
Condition Survey
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Click here to expand contentClick here to collapse content  Sasanoa River
Publication Date: 4/11/2013
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Click here to expand contentClick here to collapse content  Scarboro River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
3/4/2015 
After Dredge Survey
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Click here to expand contentClick here to collapse content  Searsport Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/7/2015
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  South Bristol Harbor
Publication Date: 6/17/2011
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Click here to expand contentClick here to collapse content  Southwest Harbor
Publication Date: 4/27/2012
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Click here to expand contentClick here to collapse content  St. Croix River
Publication Date: N/A
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Click here to expand contentClick here to collapse content  Stockton Harbor
Publication Date: 4/23/2007
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Click here to expand contentClick here to collapse content  Stonington Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
10/21/2014
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Sullivan Falls Harbor
Publication Date: 9/28/2012
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Click here to expand contentClick here to collapse content  Union River | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
2/28/2014
Condition Survey
Complete Project Drawing
Click here to expand contentClick here to collapse content  Wells Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
12/11/2015
Condition Survey
Complete Project Drawing
7/28/2016 Condition Survey
 Supplemental Drawing
Click here to expand contentClick here to collapse content  Winter Harbor
Publication Date: 5/17/2002
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Click here to expand contentClick here to collapse content  Wood Island Harbor and The Pool at Biddeford
Publication Date: 1/26/2012
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Click here to expand contentClick here to collapse content  York Harbor | Project Map
Publication Date Project Title / Description PDF Drawings Survey Results DGN File XYZ File Metadata File
9/8/2016
Condition Survey
Complete Project Drawing
  
Building Strong