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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 The site also has Policy Notices that remain in place until superseded.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
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
211103211101-1ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/032025/07/04ROCK ISLAND DISTRICT
211101ILLINOIS WATERWAY LOCKAGE RESTRICTIONS Brandon Road Lock and Dam, RM 286.02025/07/022025/07/03ROCK ISLAND 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
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
211024CHICKAMAUGA LOCK – 12 HOUR CLOSURE2025/06/242025/06/26NASHVILLE DISTRICTNav Notice 25-17.pdf
211089MCALPINE LOCKS & DAM PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2025/06/242025/09/20LOUISVILLE DISTRICTNotice 2025-021, McAlpine - Portland Canal Wall Repairs map.pdf
210604Chicago Harbor Southerly Extension Detached Breakwater Repair2025/06/232025/07/23CHICAGO DISTRICT
210873Emsworth Locks and Dam, Ohio River. Auxiliary Chamber Closure.2025/06/232025/06/27PITTSBURGH DISTRICT
210895210604-1Chicago Harbor Southerly Extension Detached Breakwater Repair2025/06/232025/07/23CHICAGO DISTRICT
211004CHANNEL MAINTENANCE DREDGING MARMET LOCKS AND DAM KANAWHA RIVER, MILE 67.72025/06/232025/06/27HUNTINGTON DISTRICT
211010Lock Closure T.J. O’Brien Lock & Dam River Mile 326.52025/06/182025/06/18CHICAGO DISTRICT
211087NOTICE OF LOCK CLOSURE ARTHUR V. ORMOND (No. 9) NM 176.9 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/17UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
211088SAILING INSTRUCTION NM 221.2 to NM 221.7 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/17UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
211105211087-1NOTICE OF LOCK CLOSURE ARTHUR V. ORMOND (No. 9) NM 176.9 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/172025/06/26LITTLE ROCK DISTRICT
210907PADUCAH RIVERFRONT INFRASTRUCTURE IMPROVEMENTS OHIO RIVER MILE 934 2025/06/162025/11/30LOUISVILLE DISTRICT
210908REPLACEMENT OF CONDUCTOR LINES ON TVA TRANSMISSION LINE TENNESSEE RIVER MILE 455.0 2025/06/162025/06/19NASHVILLE DISTRICTNav Notice 25-15.pdf
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
210898FY25 Memphis District Harbor Dredging Season2025/06/152025/12/31MEMPHIS DISTRICT15May2025-DRAFTSchedule.pdf
15May2025-DRAFTSchedule.pdf
210904SCHEDULED LOCK CLOSURE NOTICE DARDANELLE LOCK (No. 10) NM 205.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/06/152025/10/01LITTLE ROCK DISTRICT
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