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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 The site also has Policy Notices that remain in place until superseded.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
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
2079722025 PORTLAND ANNUAL NAVIGATION LOCK MAINTENANCE OUTAGE2025/03/092025/03/23PORTLAND DISTRICT
2081842025 WALLA WALLA DISTRICT NAVIGATION LOCK MAINTENANCE OUTAGE2025/03/082025/03/29WALLA WALLA DISTRICT
208784LOCK CLOSURE DAVID D. TERRY LOCK (No. 6) NM 108.1 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/02/032025/02/08LITTLE ROCK DISTRICT
208667206022-1Lock Closure Lockport Lock2025/01/282025/03/25CHICAGO DISTRICT
207688Large Lock Chamber Closure #62025/01/162025/02/15SEATTLE DISTRICT
206022Lock Closure Lockport Lock2025/01/142025/03/11CHICAGO DISTRICT
207258207255-1SCHEDULED WINTER LOCK CLOSURES Locks 27 Main Lock, Melvin Price Main Lock, Lock 25 Upper Mississippi River mile 185.5, 200.5, and 241.42025/01/012025/04/01ST. LOUIS DISTRICT
207884MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 16, River Mile 457.2; Lock & Dam 18, River Mile 410.5; Lock & Dam 20, River Mile 343.2 2024/12/302025/03/03ROCK ISLAND DISTRICT
208329MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 19, River Mile 364.22024/12/302025/03/03ROCK ISLAND DISTRICT
208785OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL2024/12/162025/01/16DETROIT DISTRICT
208548UPPER MISSISSIPPI WINTER LOCKAGE HOURS Lock & Dam No. 11, UMR 583.0 THROUGH Lock & Dam No. 22, UMR 301.22024/12/152025/03/08ROCK ISLAND DISTRICT
208412208235-1 WATTS BAR LOCK INTERMITTENT CLOSURES TRM 529.9 2024/12/092024/12/13NASHVILLE DISTRICT
208435LOCK CLOSURES Upper Mississippi RIver2024/12/092025/03/15ST. PAUL DISTRICT
208725MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 20, River Mile 343.22024/12/032024/12/05ROCK ISLAND DISTRICT
208727208725-1MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 20, River Mile 343.22024/12/032024/12/05ROCK ISLAND DISTRICT
207687205956-2Large Lock Closure #5 (Center Gate)2024/12/022025/01/01SEATTLE DISTRICT
208672TOW HAULAGE PLANNED OUTAGE MURRAY LOCK AND DAM (No. 7) NM 125.4 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/12/02UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
208758OUTFALL DIFFUSER INSTALLATION BIG SANDY RIVER, MILE 2.22024/12/022024/12/13HUNTINGTON DISTRICT
208765Barkley Lock Closure CRM 30.62024/12/022024/12/20NASHVILLE DISTRICT
208786FACILITY MAINTENANCE DREDGING BIG SANDY RIVER, MILE 3.62024/12/022024/12/07HUNTINGTON DISTRICT
205956Large Lock Closure #5 (Center Gate)2024/11/292024/12/29SEATTLE DISTRICT
205986205956-1Large Lock Closure #5 (Center Gate)2024/11/292024/12/29SEATTLE DISTRICT
208788CHANNEL CLOSURE FOR LIFTING OPERATIONS Gulf Intracoastal Waterway - West Galveston Bay Barrier Island Reconstruction Gulf Intracoastal Waterway – Chocolate Bayou 2024/11/252024/11/25GALVESTON DISTRICT
208761208668-2AMENDMENT - Navigation Notice 208668-1, MVN 24-145 DIVE OPERATIONS Gulf Intracoastal Waterway Algiers Lock2024/11/222024/11/23NEW ORLEANS DISTRICT
208804UPPER MISSISSIPPI MECHANICAL DREDGING (STRIKE REMOVAL) Lock 22 Upper Mooring Cell, UMR Mile 301.9-302.02024/11/21UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
208678SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2024/11/202024/11/21WALLA WALLA DISTRICT
208724MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 16, River Mile 457.22024/11/192024/11/19ROCK ISLAND DISTRICT
208764Monongahela River Locks and Dam 3 Navigable Pass2024/11/192024/11/20PITTSBURGH DISTRICT
208628208357-1Amendment #1 - Closure of Primary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/11/182024/12/23PITTSBURGH DISTRICT
208763DAUPHIN ISLAND, ALABAMA DREDGING OPERATIONS – FORT GAINES / PASS DRURY2024/11/182024/12/01MOBILE DISTRICT
208767SUBAQUEOUS STONE PLACEMENT Mississippi River - Mile 11.5 AHP RDB2024/11/182024/12/30NEW ORLEANS DISTRICT
208755CHANNEL MAINTENANCE DREDGING WILLOW ISLAND LOCKS AND DAM OHIO RIVER, MILE 162.02024/11/172024/11/20HUNTINGTON DISTRICT
208757CHANNEL MAINTENANCE DREDGING MARMET LOCKS AND DAM KANAWHA RIVER, MILE 67.72024/11/172024/11/20HUNTINGTON DISTRICT
208759DREDGING OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass 2024/11/162025/02/16NEW ORLEANS DISTRICT
208684CHANNEL MAINTENANCE DREDGING RACINE LOCKS AND DAM OHIO RIVER, MILE 237.52024/11/142024/11/19HUNTINGTON DISTRICT
208749TOW HAULAGE OUT OF SERVICE NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/11/14UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
208750TOW HAULAGE RETURN TO SERVICE NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/11/142024/11/15LITTLE ROCK DISTRICT
208751208749-1TOW HAULAGE OUT OF SERVICE NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/11/142024/11/14LITTLE ROCK DISTRICT
208752UPPER MISSISSIPPI MECHANICAL DREDGING (STRIKE REMOVAL) Island 241, UMR Mile 561.7-562.02024/11/14UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
208670LOCK CLOSURE JOE HARDIN LOCK (No. 3) NM 50.2 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/11/132024/11/06LITTLE ROCK DISTRICT
208671208670-1LOCK CLOSURE JOE HARDIN LOCK (No. 3) NM 50.2 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2024/11/132024/11/13LITTLE ROCK DISTRICT
208549ICE CONTROL BOOMS, COURSE 2, LITTLE RAPIDS CHANNEL ST. MARYS RIVER2024/11/122025/05/01DETROIT DISTRICTAttachment NOV2024 -ICE_CONTROL_BOOMS_ST_MARYS_RIVER_MI.pdf
208550208549-1ICE CONTROL BOOMS, COURSE 2, LITTLE RAPIDS CHANNEL ST. MARYS RIVER2024/11/122025/05/01DETROIT DISTRICTAttachment NOV2024 -ICE_CONTROL_BOOMS_ST_MARYS_RIVER_MI.pdf
208668DIVE OPERATIONS Gulf Intracoastal Waterway Algiers Lock2024/11/122024/11/14NEW ORLEANS DISTRICT
208679TEMPORARY LOCK CLOSURE Lock and Dam 7, UMR 702.52024/11/122024/11/12ST. PAUL DISTRICT
208680208679-1TEMPORARY LOCK CLOSURE Lock and Dam 7, UMR 702.52024/11/122024/11/12ST. PAUL DISTRICT
208706208350-1MCALPINE LOCKS & DAM REVISED - PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2024/11/122024/11/30LOUISVILLE DISTRICTNotice 2024-047, McAlpine - REVISED - Portland Canal Wall Repairs map.pdf
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