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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 The site also has Policy Notices that remain in place until superseded.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
211009Auxiliary Lock Annual Maintenance Period2026/03/022026/03/13SEATTLE DISTRICT
211008Large Lock Maintenance Period2025/11/102025/11/26SEATTLE DISTRICT
210145NOTICE OF SCHEDULED LOCK CLOSURE WEBBERS FALLS L&D No. 16, NM 366.62025/08/252025/09/14TULSA DISTRICT
210866NOTICE OF CANCELED LOCK CLOSURE WEBBERS FALLS L&D 16, NM 366.62025/08/252025/09/14TULSA DISTRICT
210768LOCK CLOSURES Lock and Dam 6, UMR 714.32025/08/192025/08/29ST. PAUL DISTRICT
210893Lock Closure T.J. O’Brien Lock & Dam, River Mile 326.52025/08/192025/08/19CHICAGO 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
210894210606-1Calumet Harbor Breakwater Repair2025/07/302025/09/12CHICAGO DISTRICT
210767LOCK CLOSURE Lock and Dam 7, UMR Mile 702.52025/07/222025/08/01ST. PAUL DISTRICT
211093UNDERWATER EXCAVATION AND PIPELINE REPAIR TENNESSEE RIVER MILE 246.4 LDB 2025/07/212025/08/29NASHVILLE DISTRICTNav Notice 25-18.pdf
211164SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/07/152025/07/15WALLA WALLA DISTRICT
211127River mile 849.5 Stonework RDB near Caruthersville Harbor2025/07/112025/07/18MEMPHIS DISTRICT
211165SCHEDULED LOCK OUTAGE AT LOWER MONUMENTAL NAVIGATION LOCK2025/07/092025/07/10WALLA WALLA DISTRICT
211126CHANNEL MAINTENANCE DREDGING BIG SANDY RIVER, MILES 0.0 TO 9.02025/07/082025/09/08HUNTINGTON DISTRICT
211148OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL2025/07/082025/07/11DETROIT DISTRICT
211091GUIDEWALL REPAIRS INTRACOSTAL WATERWAY CALCASIEU LOCK2025/07/072025/07/12NEW ORLEANS DISTRICT
211094PICKWICK LOCK CLOSURE TENNESSEE RIVER MILE 206.7 2025/07/072025/10/07NASHVILLE DISTRICTNav Notice 25-19.pdf
211098REPAIRS GULF INTRACOASTAL WATERWAY INNER HARBOR NAVIGATION CANAL (IHNC) LOCK2025/07/072025/07/11NEW ORLEANS DISTRICT
211107DUKE ENERGY ENVIRONMENTAL INVESTIGATION OHIO RIVER MILES 466 - 467 2025/07/072025/07/25LOUISVILLE DISTRICT
211109SUBAQUEOUS STONE PLACEMENT MISSISSIPPI RIVER SUBAQUEOUS STONE PLACEMENT MILE 174.8 AHP LDB 2025/07/072025/07/22NEW ORLEANS DISTRICT
211145BARKLEY LOCK CLOSURE CRM 30.6 2025/07/072025/08/07NASHVILLE DISTRICTNav Notice 25-21.pdf
211103211101-1ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/032025/07/04ROCK ISLAND DISTRICT
211125211101-2ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/032025/07/04ROCK ISLAND DISTRICT
211146CALENDAR YEAR 2025 LOUISVILLE DISTRICT DREDGING PLAN OVERVIEW OHIO RIVER 2025/07/032025/07/13LOUISVILLE DISTRICT
211147OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING SMITHLAND LOCKS & DAM LOWER APPROACH OHIO RIVER MILE 919 2025/07/032025/07/06LOUISVILLE DISTRICT
211149211101-3ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/032025/07/04ROCK ISLAND DISTRICT
211153OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING LIVINGSTON POINT OHIO RIVER MILE 932.5 2025/07/032025/07/08LOUISVILLE DISTRICT
211101ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/022025/07/03ROCK ISLAND DISTRICT
211144WILSON MAIN LOCK TO REOPEN TRM259.42025/07/02UNTIL FURTHER NOTICENASHVILLE DISTRICTNav Notice 25-20.pdf
211150REPAIRS CALCASIEU RIVER SALTWATER BARRIER 2025/07/022025/07/02NEW ORLEANS DISTRICT
211152LOCK OPERATIONAL FOR NAVIGATION NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM2025/07/022025/07/03LITTLE ROCK DISTRICT
211154TOW HAULAGE RETURN TO SERVICE TOAD SUCK LOCK (No. 8) NM 155.9 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/07/022025/07/04LITTLE ROCK DISTRICT
211092FLOOD GATES CLOSURE Gulf Intracoastal Waterway, Texas Brazos River Flood Gates, Texas2025/07/012025/10/01GALVESTON DISTRICT
211097Monongahela River Locks and Dam 3: Demolition2025/07/012025/09/30PITTSBURGH DISTRICT
211099211097-1Monongahela River Locks and Dam 3: Demolition2025/07/012025/09/30PITTSBURGH DISTRICT
211110LOCK CLOSURE Gulf Intracoastal Waterway, Colorado River Locks, Texas2025/07/012025/08/29GALVESTON DISTRICT
211108INCREASED LOCKAGE TIME AT MCNARY NAVIGATION LOCK2025/06/302025/06/30WALLA WALLA DISTRICT
211124SLOWER LOCKAGES AT LOWER MONUMENTAL NAVIGATION LOCK2025/06/302025/07/02WALLA WALLA DISTRICT
211005TEMPORARY RESTRICTED AREA ST. MARYS FALLS CANAL2025/06/272025/06/27DETROIT DISTRICT
211111Change 2 to SLMR Small Lock Closure2025/06/272025/06/27SEATTLE DISTRICT
211112Black Rock Lock Operating Schedule 2025 (Revision 1)2025/06/272025/12/31BUFFALO DISTRICTBRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
BRL Notice to Navigation 2025 Rev 1 (27JUNE2025).pdf
211100CHANNEL MAINTENANCE DREDGING WINFIELD LOCKS AND DAM KANAWHA RIVER, MILE 31.12025/06/262025/06/29HUNTINGTON DISTRICT
211102DREDGEING OPERATIONS MISSISSIPPI RIVER AND SOUTHWEST PASS (UPDATE) 2025/06/262025/07/31NEW ORLEANS DISTRICT
211104LOCK REOPENED ARTHUR V. ORMOND (No. 9) NM 176.9 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/262025/06/27LITTLE ROCK DISTRICT
211106DREDGEING OPERATIONS MILE 17.0 TO MILE 5.0 CLOONEY ISLAND LOOP & DEVIL’S ELBOW (UPDATE)2025/06/262025/11/01NEW ORLEANS DISTRICT
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