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 The Great Lakes navigation system is a continuous 27-foot deep draft waterway that extends from the western end of Lake Superior at Duluth, MN to the Gulf of St. Lawrence on the Atlantic Ocean, a distance of over 2,400 miles. This bi-national resource is composed of the five Great Lakes, the connecting channels of the Great Lakes, the St Lawrence River and the Gulf of St. Lawrence. The U.S. portion of the system includes 136 harbors (71 commercial & 65 recreational), four locks, 104 miles of breakwaters and jetties, and over 600 miles of maintained navigation channels. In addition, the GLNS is connected to several other shallow draft waterways (Illinois Waterway, New York State Barge Canal, etc.) to form an important waterborne transportation network, reaching deep into the continent.
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This map displays all the active confined disposal facilities on the Great Lakes and indicates the approximate remaining capacity (in years) of each facility.
This webpage contains basic information on the process of dredging, the role of the Army Corps of Engineers in federal dredging projects, and an explination of dredged material disposal methods.
This map displays the various methods of dredged material placement employed by harbors on the Great Lakes.
This paper provides an overview of the vital role that coastal infrastructure plays in protecting urban waterfronts from storm surges, waves, and ice.
Topics covered include Great Lakes and the St. Lawrence Seaway, Corps' navigation mission, water levels, and funding.
Presentation covers Soo Locks winter work, Soo Memorandum of Agreement, maintenance dredging, and Soo replacement lock.
Slide show includes a recap of the 2008 dredging program and priorities for the 2009 program.
Presentation covers background and current conditions of the GLNS, its value to the national economy, the GLNS team, and GLNS investments.
Presentation includes information on the impact of water levels on navigation, a recap of the 2007 navigation season, navigation system funding & trends, and a FY08 maintenance dredging overview.
Briefing given to the Great Lakes Task Force (US Senate) covering Great Lakes maintenance and backlog dredging, confined disposal facilities and breakwaters.
This website contaings presentations from previous Stakeholder Meetings and information on future Stakeholder Meetings.
Maps contain the authorized, recommended and maintained depths and widths of active federal channels on the Great Lakes
Includes a brief summary of the comments gathered from stakeholder surveys completed in April of 2007.
Spreadsheet includes commercial and recreational budget needs for FY09-FY13.
The Five Year Development Plan was recently developed to help guide the U.S. Army Corps of Engineers in planning for Great Lakes navigation system needs.
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The Great Lakes Navigation System is run by the three USACE Great Lakes Districts
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Great Lakes Harbors Fact Sheets: 
Sault Ste. Marie Locks Recapitalization & Modernization Plan
Great Lakes Dredging
