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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 The site also has Policy Notices that remain in place until superseded.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
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
209849DIVING OPERATIONS KENTUCKY LOCK TENNESSEE RIVER MILE 22.42025/04/142025/05/01NASHVILLE DISTRICT
209848DIVING OPERATIONS BARKLEY LOCK CUMBERLAND RIVER MILE 30.62025/04/132025/04/13NASHVILLE DISTRICT
209907209849-1*** Amendment *** DIVING OPERATIONS KENTUCKY LOCK TENNESSEE RIVER MILE 22.42025/04/112025/05/02NASHVILLE DISTRICTNav Notice 25-05_1.pdf
210225YAGER MARINE DRY DOCK MAINTENANCE DREDGING OHIO RIVER MILE 752 LEFT BANK 2025/04/082025/04/16LOUISVILLE DISTRICT
210215210104-1MCALPINE LOCKS & DAM REVISED - PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2025/04/072025/04/25LOUISVILLE DISTRICT
210124Operational Restrictions Lockport Lock and Dam2025/04/04UNTIL FURTHER NOTICECHICAGO DISTRICT
210207Maintenance Dredging, Michigan City Harbor, Michigan City, Indiana2025/04/012025/05/01CHICAGO DISTRICT
210186LOCK CLOSURE DAVID D. TERRY LOCK (No. 6) NM 108.1 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/03/282025/03/20LITTLE ROCK DISTRICT
210227CHANNEL MAINTENANCE DREDGING WINFIELD LOCKS AND DAM KANAWHA RIVER MILE 31.12025/03/282025/04/07HUNTINGTON DISTRICT
210229UPPER MISSISSIPPI MECHANICAL DREDGING (STRIKE REMOVAL) Lock 21 Lower, UMR Mile 324.8-324.92025/03/28UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
210230SLOWER LOCKAGES AT LOWER MONUMENTAL NAVIGATION LOCK2025/03/282025/04/02WALLA WALLA DISTRICT
210231SLOWER LOCKAGES AT LOWER GRANITE NAVIGATION LOCK2025/03/282025/04/25WALLA WALLA DISTRICT
210224TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI CHANNEL BLOCKAGE MONTGOMERY POOL, MILE 410.02025/03/262025/05/01MOBILE DISTRICT
210226TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI TEMPORARY CLOSURE BAY SPRINGS LAKE WHITTEN POOL, MILE 427-4282025/03/262025/04/01MOBILE DISTRICT
210213NEWBURGH LOCKS AND DAM AUXILIARY CHAMBER CLOSURE OHIO RIVER MILE 776.1 2025/03/252025/03/31LOUISVILLE DISTRICT
210219TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI CHANNEL BLOCKAGE MONTGOMERY POOL, MILE 410.02025/03/252025/04/01MOBILE DISTRICT
210228UPPER MISSISSIPPI MECHANICAL DREDGING (STRIKE REMOVAL) Finley’s Landing, UMR Mile 595.82025/03/25UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
209905DIVING OPERATIONS WATTS BAR LOCK TENNESSEE RIVER MILE 529.92025/03/242025/03/29NASHVILLE DISTRICTNav Notice 25-07.pdf
210212JOHN T. MYERS LOCKS AND DAM AUXILIARY CHAMBER CLOSURES OHIO RIVER MILE 846.0 2025/03/242025/04/01LOUISVILLE DISTRICT
210210John Day Navigation Lock - Return to Service2025/03/23UNTIL FURTHER NOTICEPORTLAND DISTRICT
210211SMITHLAND LOCKS AND DAM LAND CHAMBER CLOSURES OHIO RIVER MILE 918.5 2025/03/232025/04/02LOUISVILLE DISTRICT
210208The Dalles Dam - Navigation Lock Open2025/03/22UNTIL FURTHER NOTICEPORTLAND DISTRICT
210106OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL2025/03/212026/01/16DETROIT DISTRICT
210164CHANNEL MAINTENANCE DREDGING ROBERT C. BYRD LOCKS AND DAM OHIO RIVER, MILE 279.22025/03/202025/03/31HUNTINGTON DISTRICT
210187JACKSON COUNTY, MISSISSIPPI DREDGING OPERATIONS - LAKE MARS2025/03/202025/06/01MOBILE DISTRICT
210191DREDGING & DEMOBILIZATION OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass2025/03/202025/04/01NEW ORLEANS DISTRICT
210192Early Open - Bonneville Navlock2025/03/20UNTIL FURTHER NOTICEPORTLAND DISTRICT
210214BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA OLIVER POOL, River Mile 340-3412025/03/202025/03/25MOBILE DISTRICT
209189TENTATIVE MAINTENANCE SCHEDULE 2025 HUNTINGTON DISTRICT2025/03/192025/11/22HUNTINGTON DISTRICT
210184BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA COFFEEVILLE LOCK AND DAM2025/03/192025/04/01MOBILE DISTRICT
210144TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI CHANNEL BLOCKAGE MONTGOMERY POOL, MILE 410.02025/03/182025/04/01MOBILE DISTRICT
210050TOTAL RIVER CLOSURE WINFIELD LOCKS AND DAM KANAWHA RIVER, MILE 31.12025/03/172025/03/17HUNTINGTON DISTRICT
210086EQUIPMENT INSTALLATION Gulf Intracoastal Waterway Leland Bowman Lock2025/03/172025/04/25NEW ORLEANS DISTRICT
210109RECREATIONAL LOCKAGES WILSON AUXILIARY LOCK TENNESSEE RIVER MILE 259.4 2025/03/14UNTIL FURTHER NOTICENASHVILLE DISTRICTNav Notice 25-08.pdf
210104MCALPINE LOCKS & DAM REVISED - PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2025/03/132025/03/24LOUISVILLE DISTRICT
210084SHOALING CONDITIONS ROBERT C. BYRD LOCKS AND DAM OHIO RIVER, MILE 279.22025/03/12UNTIL FURTHER NOTICEHUNTINGTON DISTRICTROBERT C. BYRD SHOAL.pdf
210085SHOALING CONDITION WINFIELD LOCKS AND DAM KANAWHA RIVER, MILE 31.12025/03/12UNTIL FURTHER NOTICEHUNTINGTON DISTRICTWINFIELD SHOALING MAP FONT.pdf
210064GUIDEWALL REPAIRS Gulf Intracoastal Waterway Calcasieu Lock2025/03/112025/03/12NEW ORLEANS DISTRICT
209928208888-2Amendment 2 CHEATHAM LOCK CLOSURE CRM 148.72025/03/102025/05/29NASHVILLE DISTRICTNav Notice 24-40_2.pdf
2079722025 PORTLAND ANNUAL NAVIGATION LOCK MAINTENANCE OUTAGE2025/03/092025/03/23PORTLAND DISTRICT
210024MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM INCREASED DIFFERENTIALS ON THE WHITE RIVER ENTRANCE CHANNEL 2025/03/09UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
2081842025 WALLA WALLA DISTRICT NAVIGATION LOCK MAINTENANCE OUTAGE2025/03/082025/03/29WALLA WALLA DISTRICT
209985BAYOU LA BATRE HARBOR, ALABAMA DREDGING OPERATIONS2025/03/072025/07/01MOBILE DISTRICT
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