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Welcome to Notices To Navigation Interest

The Notices To Navigation Interests (NTNI Notices) website contains navigation notices and policies issued by US Army Corps of Engineers Districts with a waterway navigation mission. These documents are disseminated according to EP 1130-2-520, Chapter 2, to inform mariners of information describing events that affect waterway navigation such as maintenance projects, hazards to navigation, and other pertinent information. The notices are removed from the page seven days past the end date on the latest amendment. The site also has Policy Notices that remain in place until superseded. This site does not contain all notices such as those published by other Federal agencies. Reference: The US Coast Guard Local Notice To Mariners site at: http://www.navcen.uscg.gov/?pageName=lnmMain
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Navigation Notices

Control NbrAmendment NbrTitleBegin DateEnd DateWaterwaysDistrict NameAttachments
20545014006-1LOCK RESTRICTION Lock and Dam 9, UMR Mile 647.9 IMMEDIATELYUNTIL FURTHER NOTICEST. PAUL DISTRICT
210107DREDGING OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass IMMEDIATELYUNTIL FURTHER NOTICENEW ORLEANS DISTRICT
210190210107-1AMENDMENT - Navigation Notice 210107, MVN 25-28 DREDGING OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass IMMEDIATELY2025/03/20NEW ORLEANS DISTRICT
210145NOTICE OF SCHEDULED LOCK CLOSURE WEBBERS FALLS L&D No. 16, NM 366.62025/08/252025/09/14TULSA DISTRICT
210105GREEN RIVER LOCK & DAM 1 REVISED – MITER GATE REHABILITATION GREEN RIVER MILE 9.1 2025/08/042025/09/28LOUISVILLE DISTRICT
210286SCHEDULED LOCK CLOSURE Jerry F. Costello Lock and Dam Kaskaskia River Mile 0.8 2025/08/012025/10/01ST. LOUIS DISTRICT
210606Calumet Harbor Breakwater Repair2025/07/302025/09/12CHICAGO DISTRICT
210604Chicago Harbor Southerly Extension Detached Breakwater Repair2025/06/232025/07/23CHICAGO DISTRICT
206558SCHEDULED LOCK CLOSURE UPDATE DARDANELLE LOCK (No. 10) NM 205.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM2025/06/152025/10/01LITTLE ROCK DISTRICT
208226110-FT STOPLOG CONVERSION 2025 LOCK CLOSURE FORECAST MULTIPLE LOCATIONS MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/152025/10/01LITTLE ROCK DISTRICT
210624MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 19, River Mile 364.22025/06/032025/06/05ROCK ISLAND DISTRICT
210221SCHEDULED LOCK CLOSURE Melvin Price Locks & Dam Auxiliary Lock Chamber Upper Mississippi River mile 200.52025/06/012025/08/31ST. LOUIS DISTRICT
210269MILITARY TRAINING EXERCISE CLEES FERRY BOAT RAMP CRM 174.2 2025/05/152025/05/16NASHVILLE DISTRICTNav Notice 25-09.pdf
210619MUNICIPAL WATER INTAKE INSTALLATION CUMBERLAND RIVER MILE 124.6 RDB 2025/05/122025/08/29NASHVILLE DISTRICTNav Notice 25-10.pdf
Nav Notice 25-10.pdf
210623210619-1MUNICIPAL WATER INTAKE INSTALLATION CUMBERLAND RIVER MILE 124.6 RDB 2025/05/122025/08/29NASHVILLE DISTRICTNav Notice 25-10.pdf
210622DREDGING OPERATIONS Houston Ship Channel, Harris County, Texas Barbours Cut Channel, Spilman Island, and Morgan’s Point Bulkhead Walls Emergency and New Work Dredging2025/05/092025/05/24GALVESTON DISTRICT
210464209849-2*** Amendment *** DIVING OPERATIONS KENTUCKY LOCK TENNESSEE RIVER MILE 22.42025/05/022025/05/15NASHVILLE DISTRICTNav Notice 25-05_1.pdf
210466209849-3*** Amendment *** DIVING OPERATIONS KENTUCKY LOCK TENNESSEE RIVER MILE 22.42025/05/022025/05/15NASHVILLE DISTRICTNav Notice 25-05_1.pdf
210544LOWER MONUMENTAL NAVIGATION LOCK OUT OF SERVICE2025/05/012025/05/01WALLA WALLA DISTRICT
210629NAVIGATION PASS CLOSED (OVER WEIR) NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM2025/04/302025/04/30LITTLE ROCK DISTRICT
210528Chicago Harbor Lock Piezometer Installation 2025/04/292025/05/01CHICAGO DISTRICT
210605210104-2MCALPINE LOCKS & DAM REVISED - PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2025/04/292025/06/27LOUISVILLE DISTRICTNotice 2025-018, REVISED -McAlpine - Portland Canal Wall Repairs map.pdf
210617DREDGING OPERATIONS Mississippi River and Southwest Pass2025/04/292025/07/16NEW ORLEANS DISTRICT
210621INCREASED LOCKAGE TIME AT MCNARY NAVIGATION LOCK2025/04/292025/04/29WALLA WALLA DISTRICT
210627TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI DREDGE WORK, MILE 366.0, ABERDEEN LAKE2025/04/292025/06/01MOBILE DISTRICT
210628APALACHICOLA, CHATTAHOOCHEE AND FLINT RIVER SYSTEM (ACF)2025/04/292025/06/01MOBILE DISTRICT
210608OPERATIONAL STATUS - SOO LOCKS WEST APPROACH NORTH CANAL OBSTRUCTION2025/04/282026/01/16DETROIT DISTRICTNTNI L25-04 Chartlet - Upper Approach Obstruction.pdf
210609OPERATIONAL STATUS – SOO LOCKS HYDROELECTRIC POWER PLANT TAILRACE CLOSURE2025/04/282100/01/01DETROIT DISTRICTNTNI L25-05 Chartlet - Tailrace Closure.pdf
210610OPERATIONAL STATUS – SOO LOCKS WEST APPROACH NORTH CANAL OBSTRUCTION2025/04/282026/01/16DETROIT DISTRICTNTNI L25-04 Chartlet - Upper Approach Obstruction.pdf
210611 OPERATIONAL STATUS – SOO LOCKS EAST APPROACH NORTH CANAL CLOSURE 2025/04/282026/01/16DETROIT DISTRICTNTNI L25-06 Chartlet - Lower Approach Closure.pdf
210612OPERATIONAL STATUS – SOO LOCKS WEST APPROACH NORTH CANAL CLOSURE AND SOUTH CANAL WORK AREAS2025/04/28UNTIL FURTHER NOTICEDETROIT DISTRICTNTNI L25-07 Chartlet - Upper Approach Closure.pdf
210613210611-1 OPERATIONAL STATUS – SOO LOCKS EAST APPROACH NORTH CANAL CLOSURE 2025/04/282026/01/16DETROIT DISTRICTNTNI L25-06 Chartlet - Lower Approach Closure.pdf
210615210612-1OPERATIONAL STATUS – SOO LOCKS WEST APPROACH NORTH CANAL CLOSURE AND SOUTH CANAL WORK AREAS2025/04/282026/01/16DETROIT DISTRICTNTNI L25-07 Chartlet - Upper Approach Closure.pdf
210584REPORTED SHOALING CASEVILLE HARBOR, MI2025/04/25UNTIL FURTHER NOTICEDETROIT DISTRICTCS_01_EVL_20250423_CS.pdf
210585210584-1REPORTED SHOALING CASEVILLE HARBOR, MI2025/04/25UNTIL FURTHER NOTICEDETROIT DISTRICTCS_01_EVL_20250423_CS.pdf
210616MOBILE HARBOR, ALABAMA 65TH ANNUAL DAUPHIN ISLAND RACE2025/04/252025/05/01MOBILE DISTRICT
210530SAFETY ZONE NOTICE Mississippi River Old River Control Structures Project2025/04/24UNTIL FURTHER NOTICENEW ORLEANS DISTRICT
210504STONE BANK STABILIZATION DOW CHEMICAL KANAWHA RIVER, MILE 54.52025/04/232025/05/21HUNTINGTON DISTRICT
210565GULF INTRACOASTAL WATERWAY (GIWW), ALABAMA HAZARD TO NAVIGATION2025/04/232025/05/01MOBILE DISTRICT
210564GULF INTRACOASTAL WATERWAY (GIWW), ALABAMA HAZARD TO NAVIGATION2025/04/222025/06/01MOBILE DISTRICT
210566210564-1GULF INTRACOASTAL WATERWAY (GIWW), ALABAMA HAZARD TO NAVIGATION2025/04/222025/04/25MOBILE DISTRICT
210524JOHN T. MYERS LOCKS & DAM HIGH WATER, FIXED WEIR NAVIGATION OHIO RIVER MILE 846.0 2025/04/212025/04/30LOUISVILLE DISTRICT
210507MOBILE HARBOR, ALABAMA DREDGING OPERATIONS MOBILE BAY2025/04/182025/08/01MOBILE DISTRICT
210449REPAIRS Gulf Intracoastal Waterway Inner Harbor Navigation Canal2025/04/172025/04/17NEW ORLEANS DISTRICT
210484NAVIGATION PASS OPEN (OVER WEIR) NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/04/17UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
210486TROY LOCK & DAM - NOTICE OF TEMPORARY CHANGE OF OPERATIONAL HOURS2025/04/17UNTIL FURTHER NOTICENEW YORK DISTRICT
210487OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL2025/04/17UNTIL FURTHER NOTICEDETROIT DISTRICT
210630210484-1NAVIGATION PASS OPEN (OVER WEIR) NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/04/172025/04/30LITTLE ROCK DISTRICT
210465CHANNEL MAINTENANCE DREDGING LONDON LOCKS AND DAM KANAWHA RIVER, MILE 82.82025/04/162025/05/02HUNTINGTON DISTRICT
210467SHOALING CONDITIONS ROBERT C. BYRD LOCKS AND DAM OHIO RIVER, MILE 279.22025/04/16UNTIL FURTHER NOTICEHUNTINGTON DISTRICT
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