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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 The site also has Policy Notices that remain in place until superseded.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
210631UPPER MISSISSIPPI In-water Rock Placement (Levee Repair) Lock 17 Lower, UMR Mile 436.0-436.62025/06/05UNTIL FURTHER NOTICEROCK ISLAND 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
210730Maintenance Dredging, Waukegan Harbor Approach Channel and Advanced Maintenance Area, Waukegan, Illinois2025/05/142025/06/30CHICAGO DISTRICT
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
210667UPPER MISSISSIPPI Mooring Cell Demolition and Construction Lock 22 Upper, UMR Mile 301.92025/05/12UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
2106712025 Summer Lockage Schedule for Recreational Vessels on the Snake and Columbia Rivers2025/05/122025/09/22WALLA WALLA DISTRICT
210745Lock Restriction Lock and Dam 8, UMR 679.22025/05/12UNTIL FURTHER NOTICEST. PAUL DISTRICT
210727FLOOD GATES CLOSURE Gulf Intracoastal Waterway, Texas Brazos River Flood Gates, Texas2025/05/102025/05/12GALVESTON DISTRICT
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
210726REPORTED SHOALING - LEXINGTON HARBOR, MI2025/05/09UNTIL FURTHER NOTICEDETROIT DISTRICTLE_01_XTN_20250407_CS.pdf
210728TEMPORARY SUSPENSION OF RECREATIONAL LOCKAGE OLD HICKORY LOCK CUMBERLAND RIVER MILE 216.2 2025/05/092025/05/20NASHVILLE DISTRICT
210729BARKLEY LOCK CLOSURE CUMBERLAND RIVER MILE 30.6 2025/05/09UNTIL FURTHER NOTICENASHVILLE DISTRICTNav Notice 25-12.pdf
Nav Notice 25-12.pdf
210705OPERATIONAL STATUS – SOO LOCKS EAST APPROACH NORTH CANAL OBSTRUCTION2025/05/082026/01/16DETROIT DISTRICTNTNI L25-09 Chartlet - Lower Approach Obstruction.pdf
210731BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA COFFEEVILLE LOCK AND DAM2025/05/082025/06/01MOBILE DISTRICT
210650DREDGING OPERATIONS Mississippi River and Southwest Pass2025/05/072025/07/08NEW ORLEANS DISTRICT
210654SUBAQUEOUS STONE PLACEMENT MISSISSIPPI RIVER MILE 24.0 AHP LDB 2025/05/062025/05/03NEW ORLEANS DISTRICT
210685REGULATING WORKS MAINTENANCE Upper Mississippi River Mile 17.8 to 14.92025/05/062025/07/07ST. LOUIS DISTRICT
210649210631-1UPPER MISSISSIPPI In-water Rock Placement (Levee Repair) Lock 17 Lower, UMR Mile 436.0-436.62025/05/05UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
210668DREDGING OPERATIONS MISSISSIPPI RIVER NEW ORLEANS HARBOR2025/05/052025/05/14NEW ORLEANS DISTRICT
210724210668-1AMENDMENT - Navigation Notice 210668, MVN 25-45 DREDGING OPERATIONS MISSISSIPPI RIVER NEW ORLEANS HARBOR2025/05/052025/05/17NEW ORLEANS DISTRICT
210653DIVE OPERATIONS Calcasieu River Saltwater Barrier2025/05/032025/05/03NEW ORLEANS 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
210651TOW HAULAGE RETURN TO SERVICE ARTHUR V. ORMOND LOCK (No. 9) NM 176.9 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/05/022025/05/02LITTLE ROCK DISTRICT
210655GULF INTRACOASTAL WATERWAY (GIWW) 6TH Annual Orange Beach Powerboat Week - Mobile, AL to Pensacola, FL2025/05/022025/05/18MOBILE DISTRICT
210664ALABAMA RIVER, ALABAMA TRI-MONTGOMERY SWIM EVENT MILE 287-2892025/05/022025/05/11MOBILE DISTRICT
210665BLACK WARRIOR/TOMBIGBEE RIVER, ALABAMA HOLT LOCK TEMPORARY CLOSURE RIVER MILE 3472025/05/022025/05/11MOBILE DISTRICT
210666BLACK WARRIOR/TOMBIGBEE RIVER, ALABAMA HOLT LOCK TEMPORARY CLOSURE RIVER MILE 3472025/05/022025/05/11MOBILE DISTRICT
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
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