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Your source for Great Lakes dredging and survey information regarding projects in Lake Superior, Lake Michigan, Lake Huron, Lake St. Clair and western Lake Erie.
Alpena Harbor, MI Arcadia Harbor, MI Ashland Harbor, WI AuSable Harbor, MI Bay Port Harbor, MI Bayfield, WI Belle River, MI Big Bay Harbor, MI Black River, MI (Port Huron) Black River, MI (Upper Peninsula) Bolles Harbor, MI Caseville Harbor, MI Cedar River, MI Channels in Lake St. Clair, MI Channels in Straits of Mackinac Charlevoix Harbor, MI Cheboygan Harbor, MI Chippewa Harbor, MI Clinton River, MI Cornucopia Harbor, WI Detour Harbor, MI Detroit River, MI Duluth-Superior Harbor, MN & WI Eagle Harbor, MI Frankfort Harbor, MI Grand Haven Harbor, MI Grand Marais, MI Grand Marais Harbor, MN Grand River, MI Grand Traverse Bay, MI Grays Reef Passage, MI Greilickville Harbor, MI Hammond Bay Harbor, MI Harbor Beach Harbor, MI Harrisville Harbor, MI Holland Harbor, MI Inland Route, MI Kawkawlin River, MI Keweenaw Waterway, MI Knife River, MN La Pointe Harbor, WI Lac La Belle Harbor, MI Leland Harbor, MI Les Cheneaux Islands, MI Lexington Harbor, MI Little Bay De Noc, MI Little Lake Harbor, MI Ludington Harbor, MI Mackinac Island, MI Mackinaw City, MI Manistee Harbor, MI Manistique Harbor, MI Marquette Harbor, MI McQuade Harbor, MN Menominee Harbor, MI & WI Minnesota DNR Harbors, MN Monroe Harbor, MI Muskegon Harbor, MI New Buffalo Harbor, MI Ontonagon Harbor, MI Pentwater Harbor, MI Petoskey Harbor, MI Pine River, MI Point Lookout Harbor, MI Pointe Mouillee CDF Entrance Channel, MI Port Austin Harbor, MI Port Sanilac Harbor, MI Port Wing Harbor, WI Portage Lake Harbor, MI Presque Isle Harbor, MI Rouge River, MI Saginaw River, MI Saugatuck Harbor, MI Saxon Harbor, WI Sebewaing River, MI Silver Bay Harbor, MN South Haven Harbor, MI St. Clair River, MI St. James Harbor (Beaver Island), MI St. Joseph Harbor, MI St. Marys River, MI Taconite Harbor, MN Tawas Bay Harbor, MI Two Harbors, MN White Lake Harbor, MI Whitefish Point, MI
2023 NTNI's: L23-17 -203606 - Reported Shoaling - Little Lake Harbor, MI L23-16 - 203040 - Structure Maintenance, Charlevoix Harbor, MI L23-15 - 203039 - Soo_Locks_Construction-Explosive_Demolition-St_Marys_Falls_Canal_MI L23-14 - 202959 - Temporary Restricted Area, Soo Locks, St. Marys Falls Canal, MI L23-13 -202895 - Reported Shoaling - Black River, Upper Peninsula, MI L23-12 -202892-1 - Reported Shoaling - Arcadia Harbor, MI L23-11 - 202578 - Ice Control Boom Removal, Course 2, Little Rapids Channel, St. Marys River, MI L23-10 - 202512 - Operational Status - Poe Lock Construction Logistics Closure L23-09 - 202494 - Reported Shoaling - Holland Harbor, MI L23-08 - 202460 - Obstruction Soo Locks North Canal East Approach - Turbidity Curtain L23-07-1 - 202431-2 - Operational Status - Rescinding Poe Lock Construction Logistic Closure L23-07 - 202431-1 - Operational Status - Poe Lock Construction Logistic Closure L23-06 - 202375 - Reported Shoaling - Ludington Harbor, MI L23-05 - 202373 - Reported Shoaling - Grand Haven Harbor, MI L23-04 - 202372 - Reported Shoaling - Muskegon Harbor, MI L23-03 - 202334 - Operational Status - Soo Locks North Canal East Approach Closure L23-02 - 202333 - Operational Status - Soo Locks West Approach North Canal Closure and South Canal Work Areas L23-01 - 202275 - Operational Status - Poe & MacArthur Locks, St. Marys Falls Canal, MI
2022 NTNI's: L22-21 - 201567 - Operational Status - Poe & MacArthur Locks, St. Marys Falls Canal, MI L22-20 - 201656 - Ice Control Booms, Course 2, Little Rapids Channel, St. Marys River, MI L22-19 - 201638 - Reported Shoaling St. Clair River, MI L22-18 - 19948 - Reported Shoaling - Holland Harbor, MI L22-17 - 19947 - Reported Shoaling - St. Joseph Harbor, MI L22-16 - 201374 - Operational Status - MacArthur Lock Closure, St. Marys Falls Canal, MI L22-15 - 201099-2 - Operational Status - Livingstone Channel, Detroit River, MI L22-14 - 201111 - Operational Status - MacArthur Lock Closure, St. Marys Falls Canal, MI L22-13 - 201099 - Operational Status - Livingstone Channel, Detroit River, MI L22-12 - 201011 - Operational Status - West Lock Approach, St. Marys Falls CanaI, MI L22-11 - 201008 - Operational Status - Soo Locks East Approach Closure, St. Marys Falls CanaI, MI L22-10 200974 - Operational Status - MacArthur Lock, St. Marys Falls CanaI, MI L22-09 200959 - Channel Adjustment - Menominee Harbor, MI L22-08 20146 - Ice Control Booms - Course 2, Little Rapids Channel, St. Marys River, MI L22-07 19948 - Reported Shoaling - Holland Harbor, MI L22-06 19947 - Reported Shoaling - Muskegon Harbor, MI L22-05 19828 - Operational Status - Poe and MacArthur Locks, St. Marys Falls Canal, MI L22-04 19766 - Operational Status - West Lock Approach, St. Marys Falls Canal, MI L22-03 19426 - Reported Shoaling - New Buffalo Harbor, MI L22-02 19026 - Operational Status - Poe and MacArthur Locks, St. Marys Falls Canal, MI L22-01 17888 - Operational Status - Poe and MacArthur Locks, St. Marys Falls Canal, MI
2021 NTNI'S: L21-11 17506 - Seasonal Lock Closures, St. Marys Falls Canal, MI L21-10 17146 - Ice Control Booms, Course 2, Little Rapids Channel, St. Marys River, MI L21-08-3 14986-4 - Operational Status - South East Pier, St. Marys Falls Canal, MI *Amended* L21-09 15506 - Condition of Channel, Little Lake Harbor, MI L21-07 14666 - Operational Status - Soo Locks East Approach Closure, St. Marys Falls Canal, MI L21-06 14338 - Operational Status, Poe Lock Closure, St. Marys Falls Canal, MI L21-05 13889 - Navigation Restriction, St. Joseph Harbor, MI L21-04 13864 - Ice Control Booms, Course 2, Little Rapids Channel, St. Marys River, MI L21-03 13826 - Operations Status, West Lock Approach, St. Marys Falls Canal, MI L21-02 13769 - Operational Status and Lock Closings, St. Marys Falls Canal, MI L21-01 13471 - Operational Status and Lock Closings, St. Marys Falls Canal, MI
Duluth-Superior Harbor Maintenance Dredging and Beach Nourishment on Minnesota Point
Operations & Maintenance Branch
Chief, Operations: (313) 226-6127 Chief, Operations Support Section: (313) 226-4549
Admin Support: (313) 226-3481
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