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US Coast Guard LNM - Heartland District Rivers (D8)
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- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 612.2, near the corner buoy. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 756.7, along the sailing line. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-101304SÉCURITÉOHIO RIVER - KANAWHA RIVER General / Marine Construction (Excluding Bridges) / Dredging Commencing November 12, 2026, and continuing until November 14, 2026, Amherst Madison Inc., will conduct dredging operations in the London L/D lower approach, along the LDB, in the vicinity of Mile 82.8. The contractors floating plant will consist of the M/V BUS BROWN, a barge mounted crane and 3 material barges. Work will be conducted from 6:00 a.m. until 4:00 p.m., daily. During non-working hours, the contractors floating plant will be moored outside of the channel and lighted accordingly. The M/V BUS BROWN will monitor VHF-FM Channels 13 and 16. Mariners are requested to transit the area at their slowest safe speed to minimize their wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 757.7, along the sailing line. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-BAE0D0SÉCURITÉOHIO RIVER - CUMBERLAND RIVER General / Autonomous Vessel Operations Continuing until December 24, 2026, an Unmanned Surface Vessel (USVS) is conducting survey operations between Miles 89.0 and 31.0. Work will be conducted 24-hours a day, 7-days a week. Mariners are urged to exercise caution in the area and maintain a sharp lookout for USVS in the channel. Mariners may contact the Field Technician at (208) 749-9724, for additional information. Position 36-29.47N 087-50.08W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-A35B56SÉCURITÉOHIO RIVER - KANAWHA RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Commencing November 18, 2026, and continuing until November 20, 2026, Amherst Madison Inc., will conduct dredging operations in the Winfield L/D lower approach, along the LDB, in the vicinity of Mile 31.1. The contractor's floating plant will consist of the M/V BUS BROWN, a barge mounted crane and three material barges. Work will be conducted from 6:00 a.m. until 4:00 p.m., daily. During non-working hours, the contractor's floating plant will be moored outside of the channel and lighted accordingly. The M/V BUS BROWN will monitor VHF-FM Channels 13 and 16. Mariners are requested to transit the area at their slowest safe speed to minimize their wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-1C13E2SÉCURITÉNEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Commencing November 11, 2026, and continuing through November 13, 2026, M/V HARRISON, WILLIAM JAMES, MARY WEBFER and MISSISSIPPI V., are conducting revetment operations in the vicinity of Mile 933.0. Work will be conducted from 6:00 a.m. until 7:00 p.m., daily. The river will be closed to southbound traffic during working hours. Northbound traffic is restricted to no more than 3 wide and 15 barges total. Mariners are requested to contact the M/V HARRISON, WILLIAM JAMES, MARY WEBFER and MISSISSIPPI V., via VHF-FM Channel 67 or 82 for passing arrangements or to be placed in the queue. Mariners are requested to transit the area at their slowest safe speed to reduce their wake, with as wide of berth is safe and proceed with caution. Mariners are urged to transit the area at their slowest safe speed and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-792D27SÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Marine Construction (Excluding Bridges) / Dredging Commencing November 10, 2026, and continuing until November 13, 2026, Foertsch Marine Services LLC., will be conducting dredging operations in the vicinity of Mile 779.0. Work will be conducted from 6:00 a.m. until 5:00 p.m., Monday through Friday. The contractor’s floating plant will consist of the M/V LYLA ELIZABETH, one crane barge and one clamshell dredge barge. The M/V LYLA ELIZABETH will monitor VHF-FM Channels 13 and 16. Mariners are urged to transit the area at their slowest safe speed to minimize their wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Bridges / Construction Chester Bridge; Due to on-going bridge demolition of the existing bridge, the horizontal channel is reduced by 80 feet from the right descending pier. Mariners are advised to contact the M/V ANDREA or RUBY BELLE via VHF-FM channels 13, 14 and 16 for further information. Position 37-54.17N 089-50.20W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / Bridges / Lighting and Other Signals Hi Carpenter Memorial Bridge; The downstream green navigation lights and the left descending bank red navigation lights have been reported extinguished. Mariners are advised to transit the bridge with caution. Position 39-23.28N 081-12.87W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-00674FSÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, the Dredge GOETZ will be conducting dredging operations between approximate Miles 504.0 and 502.0. Operations will be conducted 24-hours a day, 7-days a week. Dredge GOETZ and the attendant plant include tender boats, small boats, barges and pipeline. Dredged material will be pumped through a pontoon pipeline, which may be crossing the channel, and is placed outside of the navigation channel. Mariners should be on the lookout for tender boats, barges, small survey boats, and pontoon pipeline when transiting the dredge area. Dredge GOETZ will monitor VHF-FM Channels 13, 16 and 82, and requests 45-minute advance notice of passage. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-F2A13DSÉCURITÉOHIO RIVER - KANAWHA RIVER General / Marine Construction (Excluding Bridges) / Dredging Commencing November 15, 2026, and continuing until November 18, 2026, Amherst Madison Inc., will conduct dredging operations in the Mammet L/D lower approach, along the LDB, in the vicinity of Mile 67.7. The contractor's floating plant will consist of the M/V BUS BROWN, a barge mounted crane and three material barges. Work will be conducted from 6:00 a.m. until 4:00 p.m., daily. During non-working hours, the contractor's floating plant will be moored outside of the channel and lighted accordingly. The M/V BUS BROWN will monitor VHF-FM Channels 13 and 16. Mariners are requested to transit the area at their slowest safe speed to minimize their wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 647.7, along the green buoy line. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 84.0. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-ECD875SÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, the Dredge GOETZ will be conducting dredging operations in the vicinity of Mile 269.9. Operations will be conducted 24-hours a day, 7-days a week. A channel closure will be in effect at times to facilitate expedient dredging at this location. The closure will consist of an alternating schedule of 8-hrs closed, 4-hrs open starting with a closure at 12:00 p.m. October 30, 2026, continuing through October 31, 2026. The attendant plant will include tender boats, small boats, barges and pipeline. Dredged material will be pumped through a pontoon pipeline or self-floating pipeline, which may cross the channel and will be placed outside of the navigation channel. Mariners should coordinate passing arrangements with the Dredge GOETZ on VHF-FM Channel 13, 16 or 82. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-D24381SÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, the Dredge POTTER will be conducting dredging operations in the vicinity of Mile 170.0. Work will be conducted 24-hours a day, 7-days a week. The floating plant will consist of the Dredge POTTER, tender boats, small boats, barges and pipeline. While dredging, dredge spoils will be pumped through a pontoon line or self-floating pipeline, which may be crossing the channel and is placed outside of the navigation channel. The Dredge POTTER will monitor VHF-FM Channel 13, 16 or 82, and requests 30-minutes advance notice of passage. Mariners are urged to transit the area at their slowest safe speed and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported along the red buoy line, in the vicinity of Mile 792.0. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Mid-channel shoaling has been reported in the vicinity of Mile 486.5. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-94B1A6SÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Miscellaneous The Floating Dock and Lights associated with (LLNR-27622) Transmontaigne Dock Lights have been temporarily discontinued to facilitate dredging operations. Mariners are urged to transit this area with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported 200 feet inside the buoy line, in the vicinity of Mile 693.7. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-0B61DCSÉCURITÉOHIO RIVER - KANAWHA RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Commencing November 16, 2026, and continuing until November 20, 2026, Amherst Madison will construct a residential dock along the LDB, in the vicinity of Mile 60.2. The contractors floating plant will consist of the M/V EARL FRANKLIN and a barge mounted crane. Work will be conducted from 6:30 a.m. until 4:30 p.m., daily. During non-working hours, the contractors floating plant will be moored at the worksite and lighted accordingly. The M/V EARL FRANKLIN will monitor VHF-FM Channel 13 or 16. Mariners are requested to transit the area at their slowest safe speed to minimize their wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-29464FSÉCURITÉOHIO RIVER - CUMBERLAND RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Continuing until November 11, 2026, Garney Construction is conducting dive operations in the vicinity of Mile 193.6. Dive operations will be conducted from 6:00 a.m. to 5:00 p.m., daily. Garney Construction will have Work Tug OWNERSHIP on-scene, on the channel side of the divers, at all times. Mariners are urged to contact the Work Tug OWNERSHIP on VHF-FM Channel 13, for further information. Mariners are advised to transit the area with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - ILLINOIS RIVER General / Bridges / Construction Hardin Drawbridge; Continuing through February 2027, construction work to repair or replace the bridge fender system and pile clusters will be conducted. Work will be conducted during daylight hours, Monday through Friday. Continuing until November 13, 2026, a pile-driving template will be temporarily positioned along the upstream side of the bridge to the left descending bank, encroaching up to 15 feet into the channel. The template will be lighted at night. During active work hours, the horizontal navigational clearance through the bridge span will be reduced to 200 feet and restored to normal clearance at night. Mariners are requested to contact M/V SAM B., via VHF-FM Channel 16 one-hour before arrival at the bridge to arrange passage. All vessels should exercise caution while transiting the bridge and report any unsafe conditions to the U.S. Coast Guard. Position 39-09.62N 090-36.85W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Bridges / Lighting and Other Signals Cairo Bridge; The bridge’s navigation lights have been reported extinguished. Mariners are advised to transit the bridge with extreme caution. Position 36-58.73N 089-08.87W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 437.0. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-401C4ESÉCURITÉOHIO RIVER - CUMBERLAND RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Commencing November 16, 2026 and continuing through December 31, 2026, stone placement for bank stabilization will be conducted near Mile 308.0, RDB. Operations will be conducted from 6:00 a.m. to 6:00 p.m., daily. On-scene vessels will include a spud barge, the deck barges CH 9601, CH 9602, and CH 8903, and the M/V MS. LISA. Operations will be conducted along the bank with equipment moored on the right descending bank after work hours. Vessels will monitor VHF-FM Channels 9, 13 and 16. Mariners are urged to transit the area at their slowest safe speed to minimize wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / LAA / RNA / Temporary Regulated Navigation Zone The navigation channel width has been reduced to 470 feet, between approximate Miles 921.5 and 920.0. Mariners are advised to implement a one-way traffic pattern. Southbound traffic is restricted to 5 barges wide. Northbound tows should be no more than 6 barges wide. Mariners are advised to transit the area with extreme caution and report any areas of shoaling or groundings to the U.S. Coast Guard Ohio Valley Command Center, at (800) 253-7465. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-957D07SÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Continuing until further notice, the Markland L/D Auxiliary Lock will be closed for repairs. The Main Chamber will remain open for lockage. Mariners should take all directions from the Markland L/D operators for current lockage procedures. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-6FB0FBSÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, the support vessel M/V WELLS and the Dredge WADE will be conducting dredging operations between approximate Miles 741.6 and 741.0. Work will be conducted from 6:00 a.m. until 6:00 p.m., Monday through Friday. The support vessel M/V WELLS and the Dredge WADE will monitor VHF-FM Channel 13 or 81 and requests 30-minutes advance notice of passage. Mariners are urged to transit the area at their slowest safe speed and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-159B3CSÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Miscellaneous A can buoy has been reported off station in the vicinity of Mile 497.0. Mariners are advised to transit the area with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-C3D3D0SÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, the M/V ANGELA K., is conducting dredging operations in the vicinity of Mile 702.2. Work will be conducted from 7:00 a.m. until 7:00 p.m., Monday through Friday. The M/V ANGELA K., will monitor VHF-FM Channel 12 or 13 and requests 30-minutes advance notice of passage. Mariners are urged to transit the area at their slowest safe speed and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported in the vicinity of Mile 417.9. Mariners are urged to exercise caution in the area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-172F61SÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, Melvin Price L/D Auxiliary Chamber, in the vicinity of Mile 200.5, will be closed for maintenance dredging. During this closure, the Main Chamber will remain open and available to pass traffic. Dredge GOETZ will be on-scene monitoring VHF-FM Channels 13 and 16. Mariners should be alert for and abide by any special instructions issued by the lockmaster. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-EE98DDSÉCURITÉLOWER MISSISSIPPI RIVER - ILLINOIS RIVER General / Marine Construction (Excluding Bridges) / Dredging Continuing until further notice, M/V HOUSTON T., is conducting dredging operations between Miles 148.0 and 146.3, LaGrange Pool at the Mackinaw River. Work will be conducted 24-hours a day, 7-days a week. The M/V HOUSTON T., will monitor VHF-FM Channel 13, and requests 45-minutes advance notice of passage. Mariners are urged to transit the area at their slowest safe speed to minimize their wake and proceed with caution after passing arrangements have been made. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-D7B868SÉCURITÉLOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Continuing until December 4, 2026, the M/V LAURA K., will be installing concrete mats and riprap over a pipeline in the vicinity of Mile 500.5. Work will be conducted from 7:00 a.m. until 5:00 p.m., Monday through Saturday. The work extends about 600 ft from the left descending bank, into the navigation channel and across the sailing line. Work barges will occupy the left descending side of the channel during work hours. Commercial divers will be in the water daily. We are asking vessels to pass on the right descending (Iowa) side after passing arrangements have been made. The M/V LAURA K., will monitor VHF-FM Channel 13 or 16. After work hours, the boat and all barges will be removed from the navigation channel and moored along the left descending bank, outside the channel, and will be lighted appropriately. Mariners are urged to transit the area at their slowest safe speed to minimize their wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- OHIO RIVER - MONONGAHELA RIVER General / Hazards To Navigation / Shoaling Reported Shoaling has been reported on the left descending bank at Mile 29.7 near Mingo Creek. Sediment accumulation may impact channel depths in this area. Mariners are urged to exercise extreme caution when transiting this area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / Bridges / Lighting and Other Signals Parkersburg- Belpre Highway Bridge; The bridge navigation lights have been reported extinguished. Mariners are advised to transit the area with caution at night and during periods of reduced visibility. Position 39-16.25N 081-33.97W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- ARKANSAS POST CANAL - ARKANSAS RIVER General / Bridges / Public Notice A public notice has been issued by the Commander, Coast Guard Heartland District, Western Rivers Bridge Office, regarding a proposed amendment to the existing Coast Guard Bridge Permit for construction of the U.S. 64/S.H. 100 Highway Bridge across the Arkansas Waterway at Mile 363.5, between Webbers Falls in Muskogee County and Gore in Sequoyah County, Oklahoma. Because the public notice period is calculated from the publication date rather than the date printed on the notice, the comment period will close on November 27, 2026. Interested parties may view the public notice at the following link: https://navcen.uscg.gov/sites/default/files/pdf/bridges/publicNotices/D08_PN932-26_U.S._64_S.H.100_HighwayBridge_ArkansasWaterway.pdf Position 35-31.15N 095-07.58W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - OHIO RIVER General / Bridges / Construction Brent Spence Highway Bridge; Continuing until further notice, construction operations will be held on the new Brent Spence Companion Bridge, in the vicinity of Mile 471.2. Work will be conducted from 7:00 a.m. until 7:00 p.m., Monday through Saturday. Construction will reduce the horizontal clearance of the existing Brent Spence Highway Bridge to 700 feet. The bridge’s red channel lights will be moved 50 feet towards the center of the bridge on each side and will remain in that position for the duration of construction. The M/V KAITLYN MARIE will be on sight and will be monitoring VHF-FM Channels 13 and 16, and requests 60-minutes advance notice of passage. Mariners are encouraged to transit the area with caution, remain alert to construction vessel traffic and equipment in the vicinity and report any unsafe conditions to the US Coast Guard. Position 39-05.48N 084-31.35W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- ARKANSAS POST CANAL - ARKANSAS RIVER General / Bridges / Construction I-49 Highway Bridge; Continuing until January 2027, bridge construction operations are being conducted in the vicinity of Mile 291.6. Work will be conducted from 7:00 a.m. until 5:00 p.m., Monday through Friday. Floating equipment may be present in both spans. Channel restrictions are variable and may be reduced by 70 feet during working hours. The contractor’s floating plant will be removed during non-working hours. Mariners may contact the onsite work boat via VHF-FM Channel 16, or at (918) 2312-9184, for further information. Mariners are urged to transit the area at their slowest safe speed to minimize their wake and proceed with caution. Position 35-20.60N 094-16.85W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- General / Miscellaneous Commencing January 11, 2026, London L/D will decrease hours of operations. The lock will operate from 7:00 a.m. to 5:00 p.m. and from 7:00 p.m. and 5:00 a.m., 7-days a week. Mariners may contact the Lockmaster at (304) 442-8422, for further information. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- OHIO RIVER - MONONGAHELA RIVER General / MSIB The U. S. Coast Guard COTP Pittsburgh has issued the following Safety Advisory due to inaccurate gauge readings on the Monongahela River. The lower gauge on John P. Murtha L/D, at Mile 42.0, has inaccurate readings and is in the process of being updated. Mariners are urged to exercise caution when transiting this area. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-5BC1D5SÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Commencing July 20, 2026, and continuing until December 15, 2026, Expand Water Resources Company LLC., will be installing 2 piles and attaching water withdrawals and pumps to them, along LDB, in the vicinity of Mile 78.8. High visibility buoys will be secured at the withdrawal locations. Mariners are advised to keep a sharp lookout and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- ARKANSAS POST CANAL - ARKANSAS RIVER General / Bridges / Construction Mariners are advised that bridge construction falsework is located in the river at approximate Mile 291.6, downstream of James W. Trimble L/D (No. 13). These obstructions will be in place intermittently during the I-49 Bridge construction and may be submerged depending on river conditions. Although the obstructions are located outside of the navigation channel, mariners should exercise caution when transiting the area and remain aware of potential changes to navigation due to construction activities. Updates and further notices will be issued as needed. Mariners may contact Little Rock District Office at (501) 324-5739 or by email at [email protected], for further information. Position 35-20.60N 094-16.85W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Bridges / Closure (Scheduled Or Emergency) Vicksburg (I-20) Bridge: The second alternate span, closest to the RDB, is closed due to low water. Mariners should transit the bridge using the main span or first alternate span. Mariners are urged to exercise caution in the area. Position 32-18.85N 090-54.38W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-C50239SÉCURITÉNEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / Marine Construction (Excluding Bridges) / Dredging Commencing July 1, 2026, and continuing until April 1, 2027, the Dredge M. GARRISON will be conducting dredging operations at Fullen Dock, along the LDB, in the vicinity of Mile 740.0. Work will be conducted 6:00 a.m. until 6:00 p.m., 7-days a week. The Dredge M. GARRISON will monitor VHF-FM Channel 7. Mariners are urged transit the area at their slowest safe speed to minimize their wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- NEW ORLEANS TO BATON ROUGE - LOWER MISSISSIPPI RIVER General / MSIB The U.S. Coast Guard COTP Lower Mississippi River has issued a low water Safety Advisory between approximate Miles 869.0 and 303.0. The USACE maintained depths and widths, may not be attainable on all buoy lines. It is recommended that mariners monitor all gauge readings for safe navigation. The U.S. Coast Guard COTP Lower Mississippi River, with the concurrence of the Lower Mississippi River Committee, recommends the following limits for tows: Southbound tows between Miles 869.0 and 585.0 Drafts no greater than 11.6 feet. Barges to be configured no more than 7 wide. Southbound tows between Miles 585.0 and 303.0 Drafts no greater than 12.6 feet. Barges to be configured no more than 7 wide. Northbound tows between Miles 869.0 and 303.0 Drafts no greater than 10.6 feet. Barges to be configured no more than 6 wide total, and loaded barges no more than 4 wide. Barges to be configured no more than 7 long. Barges currently in the system with drafts greater than the advised depths should be placed as near to the center of the tow as possible. Mariners are requested to contact U.S. Coast Guard Western Rivers Command Center via VHF-FM Channel 16 or at (866) 777-2784, to report areas of shoaling, hazardous conditions or missing aids to navigation. Position 36-20.10N 089-32.98W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- EMORY General / Bridges / Repairs, Painting, Or Fender Replacement Harvey H. Hannah Bridge; Commencing September 5, 2026, and continuing until December 1, 2026, Mid-State Construction Co., will be conducting bridge repairs. Vertical clearance may be reduced due to a containment/work platform below the bridge deck. Work will be conducted from 7:00 a.m. until 4:00 p.m., 7-days a week. Dive crews will be conducting scow repairs on Pier 1 and 2 on the weekends. A dive boat will be on-scene monitoring VHF-FM Channels 13 and 16. Mariners are urged to exercise caution while transiting under the bridge. Position 35-55.63N 084-33.10W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER General / Bridges / Maintenance Dubuque Bridge: Continuing until further notice, bridge maintenance will be conducted on the Dubuque Bridge. Vertical clearance may be reduced by 62 feet above normal pool, due to a containment/work platform below the bridge deck. Mariners are urged to exercise caution while transiting under the bridge. Mariners may contact Jasper Construction via VHF-FM Channel 16, or at (563) 920-9830, for further information. Position 42-29.50N 090-39.23W USCG Heartland (MRS) District Local Notice to Mariners 45/2026
- LNM08R-75E94FSÉCURITÉLOWER MISSISSIPPI RIVER - OHIO RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Continuing until March 31, 2027, Underwater Construction Corporation, dredging and mooring cell repairs are being conducted along the RDB, at the AEP Rockport Power Plant, in the vicinity of Mile 744.8. Work will be conducted from 7:00 a.m. until 7:00 p.m., 7-days a week. The contractors floating plant will consist of one crane barge and one material barge. Mariners are requested to transit the area at their slowest safe speed to minimize their wake and proceed with caution. USCG Heartland (MRS) District Local Notice to Mariners 45/2026