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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 The site also has Policy Notices that remain in place until superseded.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
209624Montgomery L/D, Ohio River, Mile 31.7, Closure of 360-ft x 56-ft Auxiliary Lock Chamber 2025/03/03UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
209375New Cumberland L/D, Ohio River, Mile 54.3 Closure of 110-ft x 1200-ft Primary Lock Chamber2025/02/282025/05/29PITTSBURGH DISTRICT
209084Monongahela River Locks and Dam 3: 300' Channel Opening 2024/12/20UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
208904Closure of Primary Chamber to Support the Variable Height Mooring System Installation at Dashields L/D, Ohio River, Mile 13.32024/12/172024/12/19PITTSBURGH DISTRICT
208989207948-1Monongahela River Locks and Dam 3: 200' Channel Opening2024/12/11UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
208990207948-2Monongahela River Locks and Dam 3: 200' Channel Opening2024/12/11UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
209126207948-3Monongahela River Locks and Dam 3: 200' Channel Opening2024/12/112024/12/20PITTSBURGH DISTRICT
208944208764-3Monongahela River Locks and Dam 3 Navigable Pass2024/12/102024/12/11PITTSBURGH DISTRICT
208927208764-2Monongahela River Locks and Dam 3 Navigable Pass2024/12/092024/12/10PITTSBURGH 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
209105208357-2Amendment #2 - Closure of Primary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/11/182025/01/20PITTSBURGH DISTRICT
208768208764-1Monongahela River Locks and Dam 3 Navigable Pass2024/11/012024/11/02PITTSBURGH DISTRICT
208357Closure of Primary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/10/312024/12/05PITTSBURGH DISTRICT
208005Closure of Auxiliary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/09/232024/11/04PITTSBURGH DISTRICT
208356208005-1Amendment #1 - Closure of Auxiliary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/09/232024/10/30PITTSBURGH DISTRICT
208626208005-2Amendment #2 - Closure of Auxiliary Chamber to Support the Hydraulic Upgrade at Pike Island L/D, Ohio River, Mile 84.22024/09/232024/11/18PITTSBURGH DISTRICT
208090CHANNEL MAINTENANCE DREDGING, MONOGAHELA RIVER, MILES 41.5 TO 23.82024/09/19UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207948Monongahela River Locks and Dam 3: 100' Channel Opening2024/09/04UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207476Monongahela River Locks and Dam 3 Draft Restriction2024/07/16UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207442Monongahela River Locks and Dam 3 Demolition2024/07/12UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
206875Monongahela River Locks and Dam 3 Demolition2024/07/01UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
206934206875-1Monongahela River Locks and Dam 3 Demolition2024/07/01UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207316206875-2Monongahela River Locks and Dam 3 Demolition2024/07/01UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207386206875-3Monongahela River Locks and Dam 3 Demolition2024/07/01UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
207387Monongahela River Fish Reef Buoy Installation and Braddock Pool Raise2024/07/01UNTIL FURTHER NOTICEPITTSBURGH DISTRICT
206824Hannibal L/D, Ohio River, Mile 126.4 Closure of the 110-ft x 1200-ft Primary Lock Chamber 2024/06/032024/11/09PITTSBURGH DISTRICT
208253206824-1Amendment #1 - Hannibal L/D, Ohio River, Mile 126.4 Closure of the 110-ft x 1200-ft Primary Lock Chamber 2024/06/032024/12/01PITTSBURGH DISTRICT
2012322022 Schedule of Operations for Allegheny River Locks2022/08/23UNTIL FURTHER NOTICEALLEGHENY RIVERPITTSBURGH DISTRICT
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