{"type":"FeatureCollection","features":[{"type":"Feature","id":2786,"geometry":{"type":"Point","coordinates":[-79.94587999999999,32.85324000000003]},"properties":{"ESRI_OID":2786,"MSI_UID":2786,"ATU":7,"TITLE":"Charleston Harbor - Cooper River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384350,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon:secchatersea:secchasublanact:chahar:cooriv","WATERWAY_NAME":"Cooper River","CREATE_DATE":1729453709000,"MODIFIED_DATE":1751553462000,"BEGIN_DATE":1729382400000,"END_DATE":1800057599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n2786\n\nLocation:\n32.85289° N / 79.94381° W\n\nThe USCG will be demolishing, rebuilding and dredging pier november in approximate position 32-51-09.7N/079-56-48.8W. The contractor is getting ready to remove the old Pier N “mega dolphin” which represents the old pier’s closest point to the Clouter Creek Reach Channel. Operations are expected to commence January 15, 2024, with an estimated completion date of December 31, 2026. During the construction phase operations will be conducted Monday-Friday 7 a.m. to 7 p.m., during dredging operations may be continuous 24 hours a day/ 7 days a week. For further information contact: LCDR John Houk at John.R.Houk@uscg.mil.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-79.94588,32.85324]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-79.94588,"DECIMAL_LATITUDE":32.85324}},{"type":"Feature","id":2791,"geometry":{"type":"Point","coordinates":[-80.12004999999994,26.096100000000035]},"properties":{"ESRI_OID":2791,"MSI_UID":2791,"ATU":7,"TITLE":"Sector Miami, Submerged Land Act (SLA) - Port Everglades/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384314,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secmiaexcecozon:secmiatersea:secmiasublanact:poreve","WATERWAY_NAME":"Port Everglades","CREATE_DATE":1729455569000,"MODIFIED_DATE":1742579268000,"BEGIN_DATE":1729382400000,"END_DATE":1784332799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2024-10-20 To: 2025-04-18\n\nLocation:\n26.0961° N / 80.12005° W\n\nOrion Marine Construction, Inc. will be starting construction of the above referenced project from the water side using two crane loaded deck\nbarges (999 crane on KS6019 barge and 1250 crane on KS6012 barge) along with four material barges (TBD1 through TBD4); all being serviced by\na full-time push boat (TBD5). Orion will be on-site on July 15, 2024, and will start working on all activities related to the replacement of\napproximately 2300 feet of bulkhead. Hours of operation will be from 7 a.m. to 7 p.m. The estimated completion date is July 1, 2026. All the barges\nare intended to be spudded around the Port Everglades Berths 1-3 and 1A-1D area (26-05-53.68N / 080-07-12.11W) while working on replacing\nthe bulkhead in those locations. Vessels will be monitoring VHF-FM channel 11.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-80.12005,26.0961]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-80.12004999999999,"DECIMAL_LATITUDE":26.0961}},{"type":"Feature","id":3214,"geometry":{"type":"Point","coordinates":[-72.08443999999997,41.444300000000055]},"properties":{"ESRI_OID":3214,"MSI_UID":3214,"ATU":1,"TITLE":"Thames River - Upper Thames River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381564,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:seclonislsouexcecozon:seclonislsoutersea:seclonislsousublanact:bloislsouandgarbay:lonislsoueaspar:newlonhar:thariv:uppthariv","WATERWAY_NAME":"Upper Thames River","CREATE_DATE":1729711205000,"MODIFIED_DATE":1777379508000,"BEGIN_DATE":1729641600000,"END_DATE":1811807999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2024-10-23 To: 2027-05-31\n\nLocation:\n41-26-39.480N/072-05-03.984W\n\nCT-THAMES RIVER-GALES FERRY\nSterling Equipment, Inc, will be storing rental fleet barges in position 41-26-39.5N 072-05-04.0W, until May 2027. Equipment on scene will be Spud Barges, Hopper Barge and Deck Barges, which will be outside the navigable channel and will not impede navigation. Point of contact for this operation is Mark Quinn, who can be reached at (617) 984-0022 or at mark@sterlingequipment.com. Mariners are requested to give adequate clearance to the equipment and transit at their slowest safe speed to minimize wake.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-72.08444,41.4443]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-72.08444,"DECIMAL_LATITUDE":41.444300000000005}},{"type":"Feature","id":9392,"geometry":{"type":"Point","coordinates":[-79.94133999999997,32.85120000000006]},"properties":{"ESRI_OID":9392,"MSI_UID":9392,"ATU":7,"TITLE":"Charleston Harbor - Cooper River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384350,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon:secchatersea:secchasublanact:chahar:cooriv","WATERWAY_NAME":"Cooper River","CREATE_DATE":1737489690000,"MODIFIED_DATE":1767024439000,"BEGIN_DATE":1737417600000,"END_DATE":1794873599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n9392\n\nLocation:\n32.8512° N / 79.94134° W\n\nBeginning October 30, 2024, and ending October 30, 2026, Manson Construction will be performing construction of a new pier, bulkhead, and shoreline at the Romeo Pier NOAA Facility on the Cooper River. There will be a crane barge, material barges, and support vessels in the area assisting construction operations from 7am to 7pm, 7 days a week. These activities could pose a hazard to vessels traveling within 900 feet from the bulkhead to the center of the river. Mariners need to take caution when transiting the area. Please watch for dive flags, stay clear of the construction area, and away from any working equipment. Crews will be monitoring VHF-FM channel 61. For more information, please contact Robert Stalcup (904) 707-3896.\n\nBetween January 25, 2026, and February 20, 2026, the project will be taking delivery and installing a 360-foot x 60-foot floating dock secured by 16 x 100-foot driven piles, which will be accompanied by an additional heavy lift crane barge, additional pile driving barge, material barges and 3-5 tugboats. If Mariners approach/pass the project, they are urged to engage their slowest safe speed to minimize their wake.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-79.94134,32.8512]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-79.94134,"DECIMAL_LATITUDE":32.8512}},{"type":"Feature","id":18190,"geometry":{"type":"Point","coordinates":[-90.72991999999994,29.329620000000034]},"properties":{"ESRI_OID":18190,"MSI_UID":18190,"ATU":8,"TITLE":"Cat Island Pass - Houma Navigation Canal/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384874,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:catislpas:hounavcan","WATERWAY_NAME":"Houma Navigation Canal","CREATE_DATE":1746733069000,"MODIFIED_DATE":1776945332000,"BEGIN_DATE":1746662400000,"END_DATE":1843084799000,"DESCRIPTION":"Houma Navigation Canal - Bubba Dove Floodgate - Marine Construction --- From: 2025-05-08 To: 2028-05-26 --- Work for the Houma Navigation Canal Locks Complex project is underway.  Construction at the Bubba Dove Floodgates will take place 24-hours a day, 7-days a week.  Mariners are requested to transit the area at their slowest safe speed to minimize wake and proceed with caution.  VHF-FM Channels: 13 and 71","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-90.72992,29.32962]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-90.72991999999999,"DECIMAL_LATITUDE":29.32962}},{"type":"Feature","id":19760,"geometry":{"type":"Point","coordinates":[-80.16121999999996,33.448870000000056]},"properties":{"ESRI_OID":19760,"MSI_UID":19760,"ATU":7,"TITLE":"Sector Charleston, Territorial Sea - Sector Charleston, Submerged Land Act (SLA)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384376,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon:secchatersea:secchasublanact","WATERWAY_NAME":"Sector Charleston, Submerged Land Act (SLA)","CREATE_DATE":1748439553000,"MODIFIED_DATE":1748439845000,"BEGIN_DATE":1748390400000,"END_DATE":1800057599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n19760\n\nLocation:\n33.44887° N / 80.16122° W\n\nSouth Carolina Public Service Authority will be removing a land mass on the Santee River beginning May 1, 2025, until December 31, 2025, and May 1, 2026, until December 31, 2026. Hours of operation are Monday – Friday 6 a.m. to 6 p.m. Vessels will be monitoring VHF-FM channel 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-80.16122,33.44887]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-80.16122,"DECIMAL_LATITUDE":33.44887}},{"type":"Feature","id":20773,"geometry":{"type":"Point","coordinates":[-73.99840999999998,40.77075000000008]},"properties":{"ESRI_OID":20773,"MSI_UID":20773,"ATU":1,"TITLE":"Main Channel - Hudson River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382131,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:hudriv","WATERWAY_NAME":"Hudson River","CREATE_DATE":1749559317000,"MODIFIED_DATE":1749559395000,"BEGIN_DATE":1749513600000,"END_DATE":1813967999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-06-16 To: 2027-06-25\n\nLocation:\n40.77075° N / 73.99841° W\nReicon Group, LLC will be conducting pile repairs at Pier 94 from June 16, 2025, to June 25, 2027, Monday through Friday, between 7:00am to 3:30pm. Equipment on scene will be the RTC 330, monitoring VHF-FM CH 13 and will require a 24-hour notice for all vessel movement requests.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.99841,40.77075]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.99840999999999,"DECIMAL_LATITUDE":40.77075}},{"type":"Feature","id":28996,"geometry":{"type":"Point","coordinates":[-79.61499999999995,32.91317000000004]},"properties":{"ESRI_OID":28996,"MSI_UID":28996,"ATU":7,"TITLE":"Sector Charleston, Territorial Sea - Sector Charleston, Submerged Land Act (SLA)/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384376,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon:secchatersea:secchasublanact","WATERWAY_NAME":"Sector Charleston, Submerged Land Act (SLA)","CREATE_DATE":1758728818000,"MODIFIED_DATE":1758728837000,"BEGIN_DATE":1758672000000,"END_DATE":1788307199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\nFrom: 2025-09-24 \n28996\n\nLocation:\n32.91317° N / 79.615° W\n\nDredging for the Bulls Island Government Landing Improvements project is expected to begin on or about October 15, 2025, with an estimated completion date of July 7, 2026. Mechanical dredging of mooring basin with barge-mounted excavator, transport of ~1,400 CY to upland DMPF, and associated dock and ramp replacement. Hours of operation are 5 a.m. to 7 p.m. Vessels will be monitoring VHF-FM channel 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-79.615,32.91317]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-79.61500000000001,"DECIMAL_LATITUDE":32.91317}},{"type":"Feature","id":29403,"geometry":{"type":"Point","coordinates":[-79.24839999999995,33.43190000000004]},"properties":{"ESRI_OID":29403,"MSI_UID":29403,"ATU":7,"TITLE":"Winyah Bay Channel - Little River Winyah Bay/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384275,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon:secchatersea:secchasublanact:winbaycha:litrivwinbay","WATERWAY_NAME":"Little River Winyah Bay","CREATE_DATE":1759249017000,"MODIFIED_DATE":1759249445000,"BEGIN_DATE":1759190400000,"END_DATE":1782777599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\nFrom: 2025-09-30\n29403\n\nLocation:\n33.4319° N / 79.2484° W\n\nWedgefield Plantation Association (WPA), is notifying mariners regarding the upcoming dredging operations within the Wedgefield Plantation Canals in Georgetown County, South Carolina. The project is scheduled to commence in October 2025, with an estimated completion date of January 31, 2026. The project consists of the excavation of 48,752 cubic yards of material from 14.07 acres within the Wedgefield Plantation canals. The excavated material will be placed within the existing 12-acre on-site upland-confined disposal facility. Dredging activities are not authorized between February 1st to April 1st to limit impacts to essential fish habitat. hours of operation will be from 7:00 AM to 7:00 PM, five days a week. Equipment being used is a 10-inch hydraulic cutterhead dredge, suction pipeline and dredge pump. Vessels will be monitoring VHF-FM channel 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-79.2484,33.4319]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-79.2484,"DECIMAL_LATITUDE":33.4319}},{"type":"Feature","id":29959,"geometry":{"type":"Point","coordinates":[-87.88573999999994,43.00692000000004]},"properties":{"ESRI_OID":29959,"MSI_UID":29959,"ATU":9,"TITLE":"LAKE MICHIGAN - Milwaukee/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386234,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:mil","WATERWAY_NAME":"Milwaukee","CREATE_DATE":1759941650000,"MODIFIED_DATE":1759941664000,"BEGIN_DATE":1759881600000,"END_DATE":1782863999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-10-08 To: 2026-06-30\n\nLocation:\n43-00-24.912N/087-53-08.664W\nSouth shore cruise dock project being constructed for Port Milwaukee near Lake Ferry Express. The project includes installing a new dock wall and walkway platforms for future cruise ships to dock. Mariners should be aware of construction barges and permanent materials being installed that will be sticking above the water 5-ft +/-.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.88574,43.00692]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.88574,"DECIMAL_LATITUDE":43.00692}},{"type":"Feature","id":30574,"geometry":{"type":"Point","coordinates":[-74.03364999999997,40.70697000000007]},"properties":{"ESRI_OID":30574,"MSI_UID":30574,"ATU":1,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382131,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:hudriv","WATERWAY_NAME":"Hudson River","CREATE_DATE":1760956926000,"MODIFIED_DATE":1760957227000,"BEGIN_DATE":1760918400000,"END_DATE":1793491199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-11-03 To: 2026-10-31\n\nLocation:\n40-42-06.984N/074-02-02.364W\n\nPKF-Mark III, Inc will be conducting marine construction operations on the Hudson River, at Liberty State Park, in position 40-42-7.000N, 074-02-02.370W, from November 3, 2025, to October 31, 2026, Monday through Friday from 6:00am to 5:00pm. Equipment on scene will be multiple floating barges, crane barges, and material barges.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.03365,40.70697]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.03365,"DECIMAL_LATITUDE":40.70697}},{"type":"Feature","id":30675,"geometry":{"type":"Point","coordinates":[-93.32877999999994,29.797010000000057]},"properties":{"ESRI_OID":30675,"MSI_UID":30675,"ATU":8,"TITLE":"General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384877,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:calcha","WATERWAY_NAME":"Calcasieu Channel","CREATE_DATE":1761052919000,"MODIFIED_DATE":1761053146000,"BEGIN_DATE":1761004800000,"END_DATE":1803686399000,"DESCRIPTION":"Calcasieu Channel - Calcasieu Loop - Dredge Operation Booster Location --- From: 2025-10-21 To: 2027-02-25 --- The Double Barrel Booster 2109 will be staged in the Calcasieu Loop for the duration of the Monkey Island Dredge Project, in approximate position 29-47-49.2N 093-19-43.6W.  Mariners are urged to transit the area at their slowest safe speed to minimize wake.  VHF-FM Channel: 13, POC: (630) 207-5196 ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-93.32878,29.79701]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-93.32878,"DECIMAL_LATITUDE":29.79701}},{"type":"Feature","id":31194,"geometry":{"type":"Point","coordinates":[-121.52245999999997,45.72842000000003]},"properties":{"ESRI_OID":31194,"MSI_UID":31194,"ATU":13,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385628,"MRN":"urn:mrn:iala:wwy:us:navXII:dis13:seccolrivexcecozon:seccolrivtersea:seccolrivsublanact:colriv:bonpoo","WATERWAY_NAME":"Bonneville Pool","CREATE_DATE":1761755076000,"MODIFIED_DATE":1761755094000,"BEGIN_DATE":1761696000000,"END_DATE":1798761599000,"DESCRIPTION":"Advanced American Construction will be constructing a new railroad bridge on the Washington side of the Columbia River near RM 168.2. at the confluence of the White Salmon River & Columbia River. Work includes heavy marine assets, critical lifts, and pile driving operations. The Derrick Barge AAC Millennium will be on station from 10 Nov 25 through 31 Dec 26. Working days are planned for Monday through Friday, 0700 to 1700. Onsite equipment will monitor VHF-FM channels 13 & 16 during working hours. Mariners are requested to reduce speed and avoid the work area. During non-working hours, the derrick barge will remain on station with steady white lights on all four corners. Please call Kristian Hellberg at (703) 409-1614 or email at kristianh@callaac.com for more information.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-121.52246,45.72842]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-121.52246,"DECIMAL_LATITUDE":45.72842}},{"type":"Feature","id":31521,"geometry":{"type":"Point","coordinates":[-77.03190999999998,38.88219000000004]},"properties":{"ESRI_OID":31521,"MSI_UID":31521,"ATU":5,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116383087,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:potriv:upppotriv:alecha:geocha","WATERWAY_NAME":"Georgetown Channel","CREATE_DATE":1762269204000,"MODIFIED_DATE":1762270295000,"BEGIN_DATE":1762214400000,"END_DATE":1893542399000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-11-04 To: 2030-01-01\n\nLocation:\n38-52-55.884N/077-01-54.876W\n\nNorth Skanska Flatiron Joint Venture will be installing mooring anchors and buoys for the proposed Long Bridge and Pedestrian Bridge construction. Work will include driving 36” steel pile and building a trestle structure across the Washington Channel to a point approx. 200 LF from the existing bridge. The trestle will support the widening of the existing CSX Long Bridge Rail bridge. Mooring anchors will be located approximately 130 LF from the southeast shore of the Washington Channel extending between the CSX Long Bridge and the I-395 Bridge.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-77.03191,38.88219]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-77.03191,"DECIMAL_LATITUDE":38.88219}},{"type":"Feature","id":31712,"geometry":{"type":"Point","coordinates":[-90.98974999999996,30.109210000000076]},"properties":{"ESRI_OID":31712,"MSI_UID":31712,"ATU":8,"TITLE":"New Orleans Harbor - New Orleans To Baton Rouge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119138784,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou","WATERWAY_NAME":"New Orleans To Baton Rouge","CREATE_DATE":1762542977000,"MODIFIED_DATE":1770226828000,"BEGIN_DATE":1762473600000,"END_DATE":1797292799000,"DESCRIPTION":"Mississippi River - Pump Station Construction --- From: 2025-11-28 To: 2026-12-13 --- Pump station construction will be conducted along the Mississippi River, Mile 175.5, RDB, AHOP, Smoke Bend Crossing.  Work will be conducted from 6:30 a.m. to 5:00 p.m., 6-days a week.  Operations will include pile driving, excavation, and pipe installation.  On-scene vessels will include a crane barge, a material barge, a towing vessel, and a crew boat.  Mariners are requested to transit the area at a slow bell so as not to interfere with ongoing construction and proceed with caution.  VHF-FM Channel: 67 ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-90.98975,30.10921]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-90.98975,"DECIMAL_LATITUDE":30.109209999999997}},{"type":"Feature","id":32591,"geometry":{"type":"Point","coordinates":[-76.41586999999998,36.971100000000035]},"properties":{"ESRI_OID":32591,"MSI_UID":32591,"ATU":5,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382762,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:jamriv:newnew","WATERWAY_NAME":"Newport News","CREATE_DATE":1763744709000,"MODIFIED_DATE":1763744732000,"BEGIN_DATE":1763683200000,"END_DATE":1806537599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-11-21 To: 2027-03-31\n\nLocation:\n36-58-15.960N/076-24-57.132W\nCrofton Construction Services, Incorporated (CCSI) will be conducting pier demolition and reconstruction in the following location: 36°58'16.63\"N 76°24'57.22\"W (Newport News Creek). Beginning December 1, 2025, and continuing until March 31, 2027, approximately 455 days or until complete from 7:00 AM – 3:30 PM, five days a week. Operations will include crane barge operations, material barges, tug boats, work floats, and smaller crafts consistent with general marine construction. Barge(s) & vessel(s) will be moored, on site with employees working over the side on small floats or crew boats. The equipment will be confined to the barges with crew boats working in the vicinity. The entire channel will not be closed, during any stage of dredging, or will not restrict marine traffic. Except for the last 200’ at the end of the channel where the construction will be taking place. Vessels are requested to proceed in this area with caution and no wake within 500' of the above coordinates. Crews will be monitoring the following radio frequencies: VHF channels 13 & 16. MSI # 32591.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.41587,36.9711]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.41587,"DECIMAL_LATITUDE":36.9711}},{"type":"Feature","id":32785,"geometry":{"type":"Point","coordinates":[-87.44929999999994,33.252860000000055]},"properties":{"ESRI_OID":32785,"MSI_UID":32785,"ATU":8,"TITLE":"Black Warrior River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385078,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobcha:mobriv:tomriv:blawarriv:mm224mm225","WATERWAY_NAME":"Black Warrior River","CREATE_DATE":1764086214000,"MODIFIED_DATE":1779207600000,"BEGIN_DATE":1764028800000,"END_DATE":1794095999000,"DESCRIPTION":"Black Warrior River, Mile 347.0 - Modified Lock Schedule --- From: 2026-01-12 To: 2026-11-06 --- The Holt Lock will be periodically closed and operate under a modified schedule to perform repairs on a damaged lock monolith.  The below modified lock operation schedule will continue through approximately July 4, 2026:\n• Closed to navigation, from 6:00 a.m., Mondays, to 6:00 a.m., Saturdays.\n• Open to navigation, from 6:00 a.m., Saturdays, to 6:00 a.m., Mondays.\nThe tentative remaining lock operating schedule to accommodate repairs and major activities are as follows:\n• July 5, 2026 through July 12, 2026: Open 24-hours a day, 7-days a week.\n• July 13, 2026 through September 10, 2026: 60-day lock closure. \n• September 11, 2026 through October 1, 2026: Open 24-hours a day, 7-days a week.\n• October 2, 2026 through October 26, 2026: 25-day lock closure.\n• October 27, 2026 through November 6, 2026: Closed to navigation, from 6:00 a.m., Mondays, to 6:00 a.m., Saturdays.  Open to navigation, from 6:00 a.m., Saturdays, to 6:00 a.m., Mondays.\nWaterway user calls will be held throughout the repair process to update stakeholders.  A waterway users call is scheduled for June 11, 2026, at 2:00 p.m., CDT, to provide information regarding the closure.  For further information regarding this work, mariners can contact Holt Lock at (251) 276-3293.  For additional details regarding the waterway users calls, mariners can access USACE Navigation Bulletins at: https://ndc.ops.usace.army.mil/ords/f?p=107:1","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.4493,33.25286]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.44930000000001,"DECIMAL_LATITUDE":33.25286}},{"type":"Feature","id":33331,"geometry":{"type":"Point","coordinates":[-76.52527999999995,39.21805000000006]},"properties":{"ESRI_OID":33331,"MSI_UID":33331,"ATU":5,"TITLE":"Patapsco River - Fort Mchenry Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119397247,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:cracha:patriv:formchcha","WATERWAY_NAME":"Fort Mchenry Channel","CREATE_DATE":1764943467000,"MODIFIED_DATE":1765201986000,"BEGIN_DATE":1764892800000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-12-05 To: 2026-12-31\n\nLocation:\n39°12’53”N, 076°31’46”W  and   39°13’05”N, 076°31’31”W\n\nFrancis Scott Key Bridge | On or around Monday December 15, Kiewit will begin construction of a temporary access Trestle, which will be used to support the replacement of the Francis Scott Key Bridge.  Vessels on scene shall include Weeks 575 Derrick barge and other material barges.  Additional construction activities will be occurring with cranes working overtop the trestle and barges moored alongside.  All cranes & barges will be positioned along the alignment of the new bridge up to the navigation channel but will not impede any vessel traffic within the channel.  The operation is scheduled for 12 hours a day, 6 days a week, and the barges shall remain on position 24-7.  This work is scheduled to be completed before 12/31/26. The four corners of the barges will be marked with steady white lights with visibility up to 2 miles.  The elevation of the trestle shall be +12ft above Mean Sea Level.  During and after construction, the trestle shall be marked and lit.  Boaters shall use extreme caution when transiting this area outside of the navigation channel.\nKiewit is requesting all vessels in the area to use their slowest safe working speed when navigating the area.\nThe barges will not be maneuverable when moored and will require a tugboat to shift the barges.\nContractor’s vessels will monitor VHF Channels 16 and 13. The Kiewit Infrastructure Co., on-site construction leads may be contacted at (201) 832-5004, (925) 324-6503, or (908) 463-9049. MSI # 33331.\n\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.52528,39.21805]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.52528,"DECIMAL_LATITUDE":39.21805}},{"type":"Feature","id":33428,"geometry":{"type":"Point","coordinates":[-76.52527999999995,39.21805000000006]},"properties":{"ESRI_OID":33428,"MSI_UID":33428,"ATU":5,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119397247,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:cracha:patriv:formchcha","WATERWAY_NAME":"Fort Mchenry Channel","CREATE_DATE":1765202205000,"MODIFIED_DATE":1765202237000,"BEGIN_DATE":1764892800000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-12-05 To: 2026-12-31\n\nLocation:\n39°12’53”N, 076°31’46”W  and   39°13’05”N, 076°31’31”W\n\nFrancis Scott Key Bridge | On or around Monday December 15, Kiewit will begin construction of a temporary access Trestle, which will be used to support the replacement of the Francis Scott Key Bridge.  Vessels on scene shall include Weeks 575 Derrick barge and other material barges.  Additional construction activities will be occurring with cranes working overtop the trestle and barges moored alongside.  All cranes & barges will be positioned along the alignment of the new bridge up to the navigation channel but will not impede any vessel traffic within the channel.  The operation is scheduled for 12 hours a day, 6 days a week, and the barges shall remain on position 24-7.  This work is scheduled to be completed before 12/31/26. The four corners of the barges will be marked with steady white lights with visibility up to 2 miles.  The elevation of the trestle shall be +12ft above Mean Sea Level.  During and after construction, the trestle shall be marked and lit.  Boaters shall use extreme caution when transiting this area outside of the navigation channel.\nKiewit is requesting all vessels in the area to use their slowest safe working speed when navigating the area.\nThe barges will not be maneuverable when moored and will require a tugboat to shift the barges.\nContractor’s vessels will monitor VHF Channels 16 and 13. The Kiewit Infrastructure Co., on-site construction leads may be contacted at (201) 832-5004, (925) 324-6503, or (908) 463-9049. MSI # 33428.\n\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.52528,39.21805]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.52528,"DECIMAL_LATITUDE":39.21805}},{"type":"Feature","id":33651,"geometry":{"type":"Point","coordinates":[-71.29704999999996,41.56841000000003]},"properties":{"ESRI_OID":33651,"MSI_UID":33651,"ATU":1,"TITLE":"General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100117255477,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secsounewengexcecozon:secsounewengtersea:secsounewengsublanact:easapp:easpas","WATERWAY_NAME":"East Passage","CREATE_DATE":1765391583000,"MODIFIED_DATE":1765391593000,"BEGIN_DATE":1765324800000,"END_DATE":1782863999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2025-12-10 To: 2026-06-30\n\nLocation:\n41-34-06.276N/071-17-49.380W\n\nSevenson Environmental Services will be conducting dredging operations in East Passage Rhode Island Sound to Narragansett Bay adjacent to Carr Point, in position 41-34-06.3N, 071-17-49.4W, until June 2026, Monday through Friday, between 7:00am to 6:00pm. Equipment on scene will be two Dredge Barges with three Hoppers scows and boats for transit.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-71.29705,41.56841]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-71.29705,"DECIMAL_LATITUDE":41.56841}},{"type":"Feature","id":33700,"geometry":{"type":"Point","coordinates":[-76.52803999999998,39.01715000000007]},"properties":{"ESRI_OID":33700,"MSI_UID":33700,"ATU":5,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382469,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:annharcha:sevriv","WATERWAY_NAME":"Severn River","CREATE_DATE":1765459072000,"MODIFIED_DATE":1765460883000,"BEGIN_DATE":1765411200000,"END_DATE":1782950399000,"DESCRIPTION":"\n\nFrom: 2025-12-11 To: 2026-07-01\n\nLocation:\n39-01-01.740N/076-31-40.944W\n\nJohn Norris and Sons Marine Construction will begin a demolition and dock renovation project on Epping Forest Marina on the Severn River.  Construction equipment will include excavators and barges on scene. Project will run from January 3, 2026 to July 1, 2026. MSI # 33700.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.52804,39.01715]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.52803999999999,"DECIMAL_LATITUDE":39.01715}},{"type":"Feature","id":34655,"geometry":{"type":"Point","coordinates":[-74.01587999999998,40.70133000000004]},"properties":{"ESRI_OID":34655,"MSI_UID":34655,"ATU":1,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382291,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:easrivmaicha","WATERWAY_NAME":"East River Main Channel","CREATE_DATE":1767712083000,"MODIFIED_DATE":1767712100000,"BEGIN_DATE":1767657600000,"END_DATE":1783295999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-01-06 To: 2026-07-05\n\nLocation:\n40-42-04.788N/074-00-57.168W\n\nWalsh Construction Co. LLC will be conducting Demolition of existing wharf and construction of new wharf in Battery Park , in position 40-42-04.81N, 074-00-57.17W, from February 11, 2026, to February 20, 2027, between 6:00am to 11:00pm. Equipment on scene will be two equipment deck barges, supported by up to 5 material barges, 24’ push boat and three work skiffs, monitoring VHF-FM CH 16. (4ea) 40’ sectionals and (3ea) 20’ sectionals. Three (3) “NO WAKE” 28 inch regulatory buoys with fixed white solar lights and 300lb moorings will be installed approximately 500’ off the face of the East Coast Memorial and Coast Guard Recruiting Center. These buoys will be removed at the completion of the project.      ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.01588,40.70133]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.01588,"DECIMAL_LATITUDE":40.70133}},{"type":"Feature","id":34884,"geometry":{"type":"Point","coordinates":[-93.32320999999996,29.792650000000037]},"properties":{"ESRI_OID":34884,"MSI_UID":34884,"ATU":8,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384877,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:calcha","WATERWAY_NAME":"Calcasieu Channel","CREATE_DATE":1767967910000,"MODIFIED_DATE":1767967991000,"BEGIN_DATE":1767916800000,"END_DATE":1785628799000,"DESCRIPTION":"Calcasieu Channel - Calcasieu Loop - Dock Demolition and Construction --- From: 2026-01-12 To: 2026-08-01 --- Dock demolition and construction will be conducted in the Calcasieu Loop near approximate position 29-47-33N 093-19-24W.  Work will take place from 6:00 a.m. to 6:00 p.m., on a 12-days on and 2-days off rotation.  On-scene vessels will include the T/V MUDD TUG 15, the Crane Barge RG415, and the Deck Barges MC-1 and MC-4.  Mariners are urged to transit the area at their slowest safe speed to minimize wake and proceed with caution.  VHF-FM Channel: 13, POC: (337) 391-9296","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-93.32321,29.79265]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-93.32320999999999,"DECIMAL_LATITUDE":29.79265}},{"type":"Feature","id":34892,"geometry":{"type":"Point","coordinates":[-87.98683999999997,31.257340000000056]},"properties":{"ESRI_OID":34892,"MSI_UID":34892,"ATU":8,"TITLE":"Tombigbee River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385081,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobcha:mobriv:tomriv:mm89mm90","WATERWAY_NAME":"Tombigbee River","CREATE_DATE":1767971998000,"MODIFIED_DATE":1780662787000,"BEGIN_DATE":1767571200000,"END_DATE":1783987199000,"DESCRIPTION":"Tombigbee River - Marine Construction --- From: 2026-04-13 To: 2026-07-12 --- Marine construction will be conducted along the Tombigbee River, in the vicinity of Mile 60.0.  Work will consist of pile driving, underwater welding, and diffuser installation.  Operations will be conducted from 6:00 a.m. to 6:00 p.m., 7-days a week.  On-scene vessels will include a crane barge and a material barge.  The channel may be obstructed or partially obstructed during certain stages of the operation.  Mariners should coordinate passing arrangements 3-hours in advance by hailing G.A. West on VHF-FM Channel 13 and transit the area with caution.  Weekly waterway user coordination calls will be hosted by the USACE on Mondays at 2:00 p.m. (CDT).  The next meeting is scheduled for June 8, 2026.  Meetings can be joined by calling: (601) 262-2433, Conference ID: 115 930 934\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.98684,31.25734]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.98684,"DECIMAL_LATITUDE":31.25734}},{"type":"Feature","id":35137,"geometry":{"type":"Point","coordinates":[-76.30697999999995,36.803390000000036]},"properties":{"ESRI_OID":35137,"MSI_UID":35137,"ATU":5,"TITLE":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382754,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:jamriv:eliriv:elirivsoubra","WATERWAY_NAME":"Elizabeth River Southern Branch","CREATE_DATE":1768332288000,"MODIFIED_DATE":1768332314000,"BEGIN_DATE":1768262400000,"END_DATE":1799884799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)\n\nFrom: 2026-01-13 To: 2027-01-13\n\nLocation:\n36-48-12.204N/076-18-25.128W\n\nSeaward Marine will conduct bridge replacement activities on the RTE 239 Bridge Spanning Paradise Creek. Project will run from March 15, 2026 to April 15, 2027. Multiple barges will be moored in the vicinity. Caution Buoys and turbidity curtains will be in the area. All manned vessels will monitor VHF 16, 13, and 03. MSI # 35137.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.30698,36.80339]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.30698,"DECIMAL_LATITUDE":36.80339}},{"type":"Feature","id":35540,"geometry":{"type":"Point","coordinates":[-81.51199999999994,30.396000000000072]},"properties":{"ESRI_OID":35540,"MSI_UID":35540,"ATU":7,"TITLE":"Sector Jacksonville, Submerged Land Act (SLA) - St Johns River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116383440,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secjacexcecozon:secjactersea:secjacsublanact:stjohriv","WATERWAY_NAME":"St Johns River","CREATE_DATE":1769008087000,"MODIFIED_DATE":1769008293000,"BEGIN_DATE":1768953600000,"END_DATE":1790812799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-01-21 35540\n\nLocation:\n30-23-40.668N/081-30-25.344W\n\n\nBeginning on or about February 1, 2026, with an estimated completion date of August 30, 2027, Manson will be performing construction activities that could impact navigation including, but limited to:\n•\tCrane mounted spud barge mobilization\n•\tDeck/material barge mobilization and loading/unloading\n•\tRelocation of temporary lighterage docking structures\n•\tConstruction of a new lighterage wharf\n•\tConstruction of a new bulkhead (seawall)\n•\tShoreline protection work\nThis work is scheduled to occur at the unrestricted channel entrance at the Blount Island Marine Terminal on the St. Johns River.\n\nThe crane barges, material barges, and support vessels in the area will be assisting construction operations from 7 a.m. to 7 p.m. 7 days a week. These activities pose a hazard to vessels traveling within 500 feet from Marine Corps Support Facility - Blount Island. Mariners should exercise caution when transiting the area. Please stay clear of the construction area and away from any working equipment. Crews will be monitoring VHF-FM channel 61. ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-81.512,30.396]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-81.512,"DECIMAL_LATITUDE":30.396}},{"type":"Feature","id":35641,"geometry":{"type":"Point","coordinates":[-76.39438999999999,39.13096000000007]},"properties":{"ESRI_OID":35641,"MSI_UID":35641,"ATU":5,"TITLE":"Chesapeake Channel - Sandy Point To Susquehanna River (Chart 12273)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382419,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:cracha","WATERWAY_NAME":"Sandy Point To Susquehanna River (Chart 12273)","CREATE_DATE":1769110555000,"MODIFIED_DATE":1769110622000,"BEGIN_DATE":1748476800000,"END_DATE":1798847999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-05-29 To: 2027-01-01\n\nLocation:\n39.13096° N / 76.39439° W\nThe construction of the New Craighill Range Front and Range Rear has begun. The new structure(s) will be marked with a slow flashing white light with a nominal range of 4nm and located in approximate position: \nCraighill Range Front: 39 07 51.489N—76 23 39.804W.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.39439,39.13096]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.39439,"DECIMAL_LATITUDE":39.13096}},{"type":"Feature","id":35642,"geometry":{"type":"Point","coordinates":[-76.39437999999996,39.13920000000007]},"properties":{"ESRI_OID":35642,"MSI_UID":35642,"ATU":5,"TITLE":"Chesapeake Channel - Sandy Point To Susquehanna River (Chart 12273)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382419,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:cracha","WATERWAY_NAME":"Sandy Point To Susquehanna River (Chart 12273)","CREATE_DATE":1769110604000,"MODIFIED_DATE":1769110613000,"BEGIN_DATE":1748476800000,"END_DATE":1798847999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-05-29 To: 2027-01-01\n\nLocation:\n39.1392° N / 76.39438° W\nThe construction of the New Craighill Range Front and Range Rear has begun. The new structure(s) will be marked with a slow flashing white light with a nominal range of 4nm and located in approximate position\nCraighill Range Rear: 39 08 21.143N—76 23 39.780W.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.39438,39.1392]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.39438,"DECIMAL_LATITUDE":39.1392}},{"type":"Feature","id":36019,"geometry":{"type":"Point","coordinates":[-74.06787999999995,40.665260000000046]},"properties":{"ESRI_OID":36019,"MSI_UID":36019,"ATU":1,"TITLE":"Main Channel - Port Jersey Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382309,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:porjercha","WATERWAY_NAME":"Port Jersey Channel","CREATE_DATE":1769706855000,"MODIFIED_DATE":1769707805000,"BEGIN_DATE":1769644800000,"END_DATE":1803945599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-01-29 To: 2027-03-01\n\nLocation:\n40-00-08.892N/074-04-30.288W\n\nTrevcon Construction Company, LLC. Will be conducting installation of Steel Pile Piles & Steel Beams / Structural Concrete Work / Concrete Pile Repair Work & Underdeck Concrete Repairs at the  Port Liberty Container Terminal, in position 40-40-8.900N, 074-4-30.313W, from March 1, 2026, to February 28, 2027, between 5:00am to 7:00pm. Equipment on scene will be Two Barge (180’ x 60’), Two Barges (140’ x 50’), One Barge (90’ x 30’), All moving of vessels to occur by tugboat; vessels will be moved at all times of day and night.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.06788,40.66526]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.06788,"DECIMAL_LATITUDE":40.665259999999996}},{"type":"Feature","id":36100,"geometry":{"type":"Point","coordinates":[-73.95177999999999,41.98369000000008]},"properties":{"ESRI_OID":36100,"MSI_UID":36100,"ATU":1,"TITLE":"Main Channel - Hudson River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382131,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:hudriv","WATERWAY_NAME":"Hudson River","CREATE_DATE":1769798577000,"MODIFIED_DATE":1769798584000,"BEGIN_DATE":1769731200000,"END_DATE":1927497599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-02-17 To: 2031-01-29\n\nLocation:\n41-59-01.284N/073-57-06.408W\n\nBank Stabilization operations will be conducted north of the Kingston Rhinecliff Bridge off the west side of the Hudson River in position 41-59-1.240N, 073-57-9.794W, from February 17, 2026, to January 28, 2031. Work will be conducted withing the Town of Ulster allowable work hours between 7:00 am to 10:00 pm.  Equipment on scene will be, Long reach excavators from upland at first and possibly on a barge if necessary. All work will be within the existing cove. The work will be within the existing cove off the Hudson River and will not interfere with the channel. The installation of a 44-foot by 8-foot floating pier, attached to a bulkhead by a 36-foot by 4-foot gangway. Three (3) finger piers, approximately 36-feet by 6-feet each, will extend\nfrom the main floating pier. The entire pier assembly will be held in place by five (5)\nplastic, 16-inch-diameter piles, each installed by vibratory hammer. The dredging of a total of approximately 1,429 cubic yards of material, over an area of approximately 12,500 square feet. All dredged material will be disposed of within a contained upland disposal area on the property.\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.95178,41.98369]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.95178,"DECIMAL_LATITUDE":41.983689999999996}},{"type":"Feature","id":36117,"geometry":{"type":"Point","coordinates":[-94.81590999999997,29.31206000000003]},"properties":{"ESRI_OID":36117,"MSI_UID":36117,"ATU":8,"TITLE":"Galveston Bay - Galveston Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384746,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:galbayentcha:galbay:galcha","WATERWAY_NAME":"Galveston Channel","CREATE_DATE":1769807725000,"MODIFIED_DATE":1773941270000,"BEGIN_DATE":1769731200000,"END_DATE":1809215999000,"DESCRIPTION":"Galveston Channel - Marine Construction and Dredging --- From: 2026-02-26 To: 2027-04-30 --- Dredging and marine construction will take place at Texas A&M University at Galveston (TAMU-G) Dock No. 1, in the Galveston Harbor along the Galveston Channel.  Work will be conducted 10-hours a day, 6-days a week, unless otherwise directed. Operations will include dredging, the rehabilitation of approximately 300 ft of the main bulkhead and approximately 400 ft of return wall, and the construction of approximately 350 ft of a new concrete pier deck.  On-scene vessels will include approximately two crane barges, material barges, the T/V EVERLINE and an additional towing vessel, and ancillary support craft.  Dive operations may take place intermittently throughout the project.  Mariners are urged to transit the area at a safe distance and at their slowest safe speed, observe all day shapes and dive flags, and monitor bridge-to-bridge communications.  VHF-FM Channels: 13 and 16, POC: (346) 617-8019 or (832) 405-0628","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-94.81591,29.31206]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-94.81591,"DECIMAL_LATITUDE":29.31206}},{"type":"Feature","id":36151,"geometry":{"type":"Point","coordinates":[-76.52419999999995,39.220710000000054]},"properties":{"ESRI_OID":36151,"MSI_UID":36151,"ATU":5,"TITLE":"Patapsco River - Fort Mchenry Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119397247,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:cracha:patriv:formchcha","WATERWAY_NAME":"Fort Mchenry Channel","CREATE_DATE":1770031963000,"MODIFIED_DATE":1778611105000,"BEGIN_DATE":1757376000000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2025-09-09 To: 2026-10-01\n\nLocation:\n39.22071° N / 76.5242°\n\nKiewit will continue to install production piles for the main foundation piers.  Weeks 533 Derrick Crane, Weeks 531 Derrick Crane, & supply barges will be positioned east of the original Francis Scott Key Bridge. This work is scheduled to be completed on or about 10/1/26. All derrick cranes & barges will be positioned adjacent to the north and south sides of the navigable channel but will not impede any vessel traffic within the navigable channel. The operation is scheduled for 12 hours a day, 6 days a week, and the barges shall remain on position 24-7. Barge positioning and similar ancillary work may occur 24/7. The four corners of the barges will be marked with steady white lights with visibility up to 2 miles. A No Entry Safety Zone has been established and is delineated by white marker buoys with slow-flashing white lights. The limits of the zone are 500’ east/downstream and 500’ west/upstream of the original Francis Scott Key Bridge alignment between Hawkins Point and Sollers Point. A 6-Knot enforceable No Wake Zone has been established and is delineated by white marker buoys with slow flashing white lights. The limits of the zone are 1500’ east/downstream and 1500’ west/downstream from the original Francis Scott Key Bridge alignment between Hawkins Point and Sollers point. Vessels navigating the area shall use the Federal Channel and Buffer Zone. Kiewit is requesting all vessels in the area to use their slowest safe working speed when navigating the area. The barges will not be maneuverable when moored and will require a tugboat to shift the barges. Contractor’s vessels will monitor VHF Channels 16 and 13. The Kiewit Infrastructure Co., on-site construction leads may be contacted at (201) 832-5004, (925) 324-6503, or (908) 463-9049. MSI # 36151.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.5242,39.22071]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.52420000000001,"DECIMAL_LATITUDE":39.22071}},{"type":"Feature","id":36354,"geometry":{"type":"Point","coordinates":[-74.01480999999995,40.68250000000006]},"properties":{"ESRI_OID":36354,"MSI_UID":36354,"ATU":1,"TITLE":"Main Channel - Buttermilk Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382310,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:butcha","WATERWAY_NAME":"Buttermilk Channel","CREATE_DATE":1770151121000,"MODIFIED_DATE":1770151130000,"BEGIN_DATE":1770076800000,"END_DATE":1782863999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-02-03 To: 2026-06-30\n\nLocation:\n40-40-57.000N/074-00-53.316W\n\nTrevcon Construction Co. LLC will be conducting pier concrete work at the New York State, Buttermilk Channel near pier 12, Brooklyn, in position 40-40-57.010N, 074-0-53.341W, from February 10, 2026, to June 30, 2026. Equipment on scene will be work skiffs, float stage, and divers.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.01481,40.6825]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.01481,"DECIMAL_LATITUDE":40.682500000000005}},{"type":"Feature","id":36960,"geometry":{"type":"Point","coordinates":[-73.92562999999996,40.72022000000004]},"properties":{"ESRI_OID":36960,"MSI_UID":36960,"ATU":1,"TITLE":"Main Channel - East River Main Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382291,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:easrivmaicha","WATERWAY_NAME":"East River Main Channel","CREATE_DATE":1770895487000,"MODIFIED_DATE":1770895543000,"BEGIN_DATE":1770854400000,"END_DATE":1793491199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-06 To: 2026-10-31\n\nLocation:\n40-43-12.792N/073-55-32.268W\n\nTrevcon Construction Company, LLC. Will be Removing an Existing Seawall; Removal of Timber Decking and Piles; Dredging, Installation of Scour Protection, in Newton Creek, NY, in position 40-43-12.8N, 073-55-32.3W, between March 6, 2026, to October 30, 2026, between 5:00am, to 7:00pm. Equipment on scene will be Two Barge mounted cranes (180’ x 60’), Two Barges (140’ x 50’), One Barge (195’ x 35’).\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.92563,40.72022]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.92563,"DECIMAL_LATITUDE":40.72022}},{"type":"Feature","id":37191,"geometry":{"type":"Point","coordinates":[-70.61355999999995,41.741930000000025]},"properties":{"ESRI_OID":37191,"MSI_UID":37191,"ATU":1,"TITLE":"Hog Island Channel - Cape Cod Canal Eastern Entrance/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381922,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secsounewengexcecozon:secsounewengtersea:secsounewengsublanact:buzbaymaicha:hogislcha:capcodcaneasent","WATERWAY_NAME":"Cape Cod Canal Eastern Entrance","CREATE_DATE":1771335174000,"MODIFIED_DATE":1771350087000,"BEGIN_DATE":1771286400000,"END_DATE":1798847999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-09 To: 2027-02-17\n\nLocation:\n41-44-30.948N/070-36-48.816W\n\nAtlas Painting and Sheeting Corp. will be conducting bridge sandblasting and painting operations on the Buzzards Bay Railroad Bridge over the Cape Cod Canal beginning 9 March 2026 through 31 December 2026. Scaffolding will reduce the vertical clearance from 135 feet to 130 feet MHW.  Questions concerning the project should be directed to the Duty Marine Traffic Controller, US Army Corps of Engineers, Cape Cod Canal Field Office at 978-318-8500 or VHF Channel 14.  Mariners should exercise caution while transiting the area.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.61356,41.74193]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.61355999999999,"DECIMAL_LATITUDE":41.741929999999996}},{"type":"Feature","id":37200,"geometry":{"type":"Point","coordinates":[-87.83693999999997,30.24941000000007]},"properties":{"ESRI_OID":37200,"MSI_UID":37200,"ATU":8,"TITLE":"Mobile Bar - Mobile Bay/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384533,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobbay","WATERWAY_NAME":"Mobile Bay","CREATE_DATE":1771337785000,"MODIFIED_DATE":1777320441000,"BEGIN_DATE":1771286400000,"END_DATE":1783036799000,"DESCRIPTION":"Mobile Bay - Bon Secour Bay - Marine Construction --- From: 2026-05-01 To: 2026-07-01--- The Fort Morgan Adaptive Management project will take place in southeast Mobile Bay, from 6:00 a.m. to 6:00 p.m., daily.  Operations will consist of placing concrete material on top of existing reefs located along the private Fort Morgan property.  On-scene vessels will include one push boat, two barges, one material handler, and one transport vessel.  Mariners are requested to transit the area at no wake speed.  VHF-FM Channels: 12 and 16, POC: (251) 747-0146 and (251) 370-0352","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.83694,30.24941]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.83694,"DECIMAL_LATITUDE":30.249409999999997}},{"type":"Feature","id":37341,"geometry":{"type":"Point","coordinates":[-93.34695999999997,29.772350000000074]},"properties":{"ESRI_OID":37341,"MSI_UID":37341,"ATU":8,"TITLE":"Sector Houston-Galveston, Submerged Land Act (SLA) - Calcasieu Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384877,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:calcha","WATERWAY_NAME":"Calcasieu Channel","CREATE_DATE":1771444301000,"MODIFIED_DATE":1771448435000,"BEGIN_DATE":1771372800000,"END_DATE":1805241599000,"DESCRIPTION":"Calcasieu Channel - Material Offloading --- From: 2026-03-15 To: 2027-03-15 --- Material offloading will be conducted along the west side of the Calcasieu Channel near Mile 0.3.  On-scene vessels will include hopper barges and towing vessels.  Mariners are urged to transit the area with caution and at their slowest safe speed to minimize wake.  POC: (337) 247-1071 or (337) 519-1163","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-93.34696,29.77235]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-93.34696,"DECIMAL_LATITUDE":29.77235}},{"type":"Feature","id":37938,"geometry":{"type":"Point","coordinates":[-87.62879999999996,30.298170000000027]},"properties":{"ESRI_OID":37938,"MSI_UID":37938,"ATU":8,"TITLE":"Pensacola Bay - Pensacola-Mobile/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384689,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:penbay:pen","WATERWAY_NAME":"Pensacola-Mobile","CREATE_DATE":1772134582000,"MODIFIED_DATE":1772134890000,"BEGIN_DATE":1772064000000,"END_DATE":1805241599000,"DESCRIPTION":"GIWW - Marina Construction and Dredging --- From: 2026-03-16 To: 2027-03-15 --- A 43-slip marina will be constructed outside of the GIWW Channel, near Mile 159.0, EHL, in approximate position 30-17-53.67N 087-37-43.72W.  Work will be conducted from 7:00 a.m. to 4:30 p.m., Monday through Saturday.  Dredging from the GIWW Channel into the marina area will take place within the first 30-days of the project.  All other marina construction will be conducted for the remainder of the project timeline.  On-scene vessels will include a barge mounted dredge, towing vessels, and construction equipment.  Mariners are urged to transit the area at their slowest safe speed to minimize wake and proceed with caution.  POC: (251) 689-8656","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.6288,30.29817]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.6288,"DECIMAL_LATITUDE":30.29817}},{"type":"Feature","id":38562,"geometry":{"type":"Point","coordinates":[-80.74399999999997,24.761000000000024]},"properties":{"ESRI_OID":38562,"MSI_UID":38562,"ATU":7,"TITLE":"Sector Key West, Exclusive Economic Zone (EEZ)  - Sector Key West, Territorial Sea/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384385,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:seckeywesexcecozon:seckeywestersea","WATERWAY_NAME":"Sector Key West, Territorial Sea","CREATE_DATE":1772990854000,"MODIFIED_DATE":1776869486000,"BEGIN_DATE":1772928000000,"END_DATE":1782863999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-08 \n38562\n\nLocation:\n24-45-39.600N/080-44-38.400W\n\nDeep Research Inc is deploying an Undersea Habitat System within the Florida Keys National Marine Sanctuary Tennessee Reef Special Use/Research Only Area. Resolve marine will begin deployment of this project with an on-scene tug, barge, and supply vessel from approximately March 8, 2026, until May 31, 2026. The site is located on the waters of the Atlantic Ocean off Long Key. Mariners are advised that work will include the use of floating mooring lines in order to stay clear of the area and transit at their slowest safe speed if navigation in the vicinity of this project is required. Mariners may contact the on-scene vessels on VHF-FM channels 16 and 72. The POC for this project: Nolan Conway, 954-764-8700.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-80.744,24.761]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-80.744,"DECIMAL_LATITUDE":24.761000000000003}},{"type":"Feature","id":38599,"geometry":{"type":"Point","coordinates":[-82.18961999999993,41.476260000000025]},"properties":{"ESRI_OID":38599,"MSI_UID":38599,"ATU":9,"TITLE":"Lake Erie - Lorain Harbor/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386028,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:lorhar","WATERWAY_NAME":"Lorain Harbor","CREATE_DATE":1773055781000,"MODIFIED_DATE":1773062945000,"BEGIN_DATE":1773014400000,"END_DATE":1794787199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)\n\nFrom: 2026-03-09 To: 2026-11-15\n\nLocation:\n41-28-34.536N/082-11-22.632W\n\nGreat Lakes Dock and Materials will be conducting break wall repair work at the West Break wall.24 hours a day 7 days a week. On scene vessels can be contacted on VHF channels 7 and 16. \n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-82.18962,41.47626]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-82.18961999999999,"DECIMAL_LATITUDE":41.476259999999996}},{"type":"Feature","id":38883,"geometry":{"type":"Point","coordinates":[-86.24788999999998,43.058800000000076]},"properties":{"ESRI_OID":38883,"MSI_UID":38883,"ATU":9,"TITLE":"LAKE MICHIGAN - Grand River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386204,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:grariv","WATERWAY_NAME":"Grand River","CREATE_DATE":1773149621000,"MODIFIED_DATE":1774456261000,"BEGIN_DATE":1775001600000,"END_DATE":1796083199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-10 To: 2026-09-06\n\nGreat Lakes Dock & Materials, L.L.C.\n2. TYPE OF OPERATION: Pier Construction and Dredging\n3. LOCATION: Grand Haven North Pier, Michigan\n4. COMMENCE DATE: April 1, 2026 COMPLETE DATE: November 30, 2026\n5. HOURS OF OPERATION: 24 hours per day\n6. DAYS OF OPERATION: 7 days per week\n7. CONTACT VESSEL: Spud Barge “Justin Avery” and “Jacquelyn” and Tug “George F Bailey”\n8. VHF-FM CHANNELS MONITORED: 16 and 18\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-86.24789,43.0588]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-86.24789,"DECIMAL_LATITUDE":43.058800000000005}},{"type":"Feature","id":38884,"geometry":{"type":"Point","coordinates":[-87.64815999999996,44.09203000000008]},"properties":{"ESRI_OID":38884,"MSI_UID":38884,"ATU":9,"TITLE":"Manistee - Manitowoc Harbor of Refuge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386214,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:man:manharofref","WATERWAY_NAME":"Manitowoc Harbor of Refuge","CREATE_DATE":1773149943000,"MODIFIED_DATE":1773149951000,"BEGIN_DATE":1781481600000,"END_DATE":1793491199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-15 To: 2026-10-31\nRoen Salvage Company\nTYPE OF OPERATION: Breakwater Repairs\nLOCATION: Manitowoc Harbor, Lake Michigan\nCOMMENCE DATE:6/15/2026\nCOMPLETE DATE:10/31/2026\nHOURS OF OPERATION:6 a.m.TO:6 p.m.\nDAYS OF OPERATION Sunday TO: Saturday\nNAME OF CONTACT VESSEL: Tug David R. Schanock\nVHF-FM CHANNELS MONITORED:7 & 16\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.64816,44.09203]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.64815999999999,"DECIMAL_LATITUDE":44.09203}},{"type":"Feature","id":39139,"geometry":{"type":"Point","coordinates":[-92.30202999999995,29.559250000000077]},"properties":{"ESRI_OID":39139,"MSI_UID":39139,"ATU":8,"TITLE":"Sector New Orleans, Submerged Land Act (SLA) - Freshwater Bayou/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384973,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:frebay","WATERWAY_NAME":"Freshwater Bayou","CREATE_DATE":1773342795000,"MODIFIED_DATE":1773398559000,"BEGIN_DATE":1773273600000,"END_DATE":1782950399000,"DESCRIPTION":"Freshwater Bayou - Freshwater Bayou Bypass Channel - Dredge Operation --- From: 2026-03-14 To: 2026-06-30 --- Mechanical dredging will be conducted in the Freshwater Bayou Bypass Channel.  Work will take place 12-hours a day, 7-days a week.  Dredged material will be placed in barges and deposited on the bank to construct a berm.  On-scene vessels will include the Spud Barges IBR904 and U1404 and two hopper barges.  Mariners are urged to transit the area at their slowest safe speed to minimize wake and proceed with caution.  VHF-FM Channels: 67 and 72,  POC: (337) 380-4548","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-92.30203,29.55925]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-92.30203,"DECIMAL_LATITUDE":29.55925}},{"type":"Feature","id":39547,"geometry":{"type":"Point","coordinates":[-73.93054999999998,40.80419000000006]},"properties":{"ESRI_OID":39547,"MSI_UID":39547,"ATU":1,"TITLE":"Main Channel - East River Main Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382291,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:easrivmaicha","WATERWAY_NAME":"East River Main Channel","CREATE_DATE":1774014831000,"MODIFIED_DATE":1774014872000,"BEGIN_DATE":1773964800000,"END_DATE":1819756799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-20 To: 2027-08-31\n\nLocation:\n40-48-15.084N/073-55-49.980W\n\nTrevcon Construction Company will be conducting demolition and reconstruction operations on the Harlem River, west shoreline from RFK Bridge(125th St.) to Metro North Rail Bridge (132nd St.)in position 40-48-15.1N, 073-55-50W, through August 2027, Monday through Friday, between 5:00am to 6:00pm. Equipment on scene will be multiple crane barges, and material barges, monitoring VHF-FM CH 13, 16, 65, &75. Floating Equipment will be positioned along the West shoreline of the Harlem River, vessel traffic will not be impeded.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.93055,40.80419]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.93055,"DECIMAL_LATITUDE":40.80419}},{"type":"Feature","id":39636,"geometry":{"type":"Point","coordinates":[-73.98482999999999,40.709520000000055]},"properties":{"ESRI_OID":39636,"MSI_UID":39636,"ATU":1,"TITLE":"Main Channel - East River Main Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382291,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:easrivmaicha","WATERWAY_NAME":"East River Main Channel","CREATE_DATE":1774275244000,"MODIFIED_DATE":1774275261000,"BEGIN_DATE":1774224000000,"END_DATE":1856995199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-03-23 To: 2028-11-04\n\nLocation:\n40-42-34.272N/073-59-05.388W\n\nReicon will be conducting pile repair and rehabilitation operations at Pier 36, East River, New York, NY, in position 40-42-34.3N, 073-59-05.4W, from February 23, 2026, to November 3, 2028, Monday through Friday, between 6:00am to 2:00pm, local time. Equipment on scene will be a dive barge, monitoring VHF-FM Ch 13 and is requesting mariners to minimize their wake, while operations are being conducted.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.98483,40.70952]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.98483,"DECIMAL_LATITUDE":40.70952}},{"type":"Feature","id":40019,"geometry":{"type":"Point","coordinates":[-91.83791999999994,29.94826000000006]},"properties":{"ESRI_OID":40019,"MSI_UID":40019,"ATU":8,"TITLE":"Southwest Pass Vermilion Bay Channel - Acadiana Navigation Channel/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116384980,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupasverbaycha:acanavcha","WATERWAY_NAME":"Acadiana Navigation Channel","CREATE_DATE":1774540199000,"MODIFIED_DATE":1774542949000,"BEGIN_DATE":1774483200000,"END_DATE":1782950399000,"DESCRIPTION":"Commercial Canal - Acadiana Navigation Channel - Dredge Operation --- From: 2026-03-26 To: 2026-06-30 --- Dredging will be conducted in Commercial Canal at the Port of Iberia.  Work will take place 24-hours a day, 7-days a week.  On-scene vessels will include deck barges, spud barges, and truckable mud tugs.  Mariners are urged to transit the area with caution.  POC: (337) 323-9373 or (337) 519-8883","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.83792,29.94826]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.83792,"DECIMAL_LATITUDE":29.948259999999998}},{"type":"Feature","id":40216,"geometry":{"type":"Point","coordinates":[-88.42598999999996,34.06484000000006]},"properties":{"ESRI_OID":40216,"MSI_UID":40216,"ATU":8,"TITLE":"Tennessee Tombigbee River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385074,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobcha:mobriv:tomriv:tentomriv:mm327mm328","WATERWAY_NAME":"Tennessee Tombigbee River","CREATE_DATE":1774880535000,"MODIFIED_DATE":1774880748000,"BEGIN_DATE":1774828800000,"END_DATE":1791763199000,"DESCRIPTION":"Tennessee-Tombigbee River - Lock Closure --- From: 2026-09-09 To: 2026-10-10 --- Routine maintenance closures have been scheduled for the Glover Wilkins Lock, on the Tennessee-Tombigbee River, Mile 376.3.  The Lock will be closed for 30 days, from 6:00 a.m., September 9, 2026, to 6:00 p.m., October 10, 2026, for critical maintenance activities.  If the lock re-opens prior to the scheduled date, an updated Notice to Mariners will be issued.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-88.42599,34.06484]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-88.42599,"DECIMAL_LATITUDE":34.06484}},{"type":"Feature","id":40217,"geometry":{"type":"Point","coordinates":[-88.48898999999994,34.01117000000005]},"properties":{"ESRI_OID":40217,"MSI_UID":40217,"ATU":8,"TITLE":"Tennessee Tombigbee River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385074,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobcha:mobriv:tomriv:tentomriv:mm327mm328","WATERWAY_NAME":"Tennessee Tombigbee River","CREATE_DATE":1774880720000,"MODIFIED_DATE":1774880772000,"BEGIN_DATE":1774828800000,"END_DATE":1791763199000,"DESCRIPTION":"Tennessee-Tombigbee River - Lock Closure --- From: 2026-09-09 To: 2026-10-10 --- Routine maintenance closures have been scheduled for the Thad Cochran (Armory) Lock, on the Tennessee-Tombigbee River, Mile 371.1.  The lock will be closed for 30 days, from 6:00 a.m., September 10, 2026, to 6:00 p.m., October 10, 2026, for critical maintenance activities.  If the lock re-opens prior to the scheduled date, an updated Notice to Mariners will be issued.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-88.48899,34.01117]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-88.48899,"DECIMAL_LATITUDE":34.01117}},{"type":"Feature","id":40225,"geometry":{"type":"Point","coordinates":[-94.89049999999997,29.363980000000026]},"properties":{"ESRI_OID":40225,"MSI_UID":40225,"ATU":8,"TITLE":"Galveston Bay Entrance Channel - Texas City Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385094,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:galbayentcha:texcitcha","WATERWAY_NAME":"Texas City Channel","CREATE_DATE":1774885159000,"MODIFIED_DATE":1779373857000,"BEGIN_DATE":1774483200000,"END_DATE":1782863999000,"DESCRIPTION":"Texas City Channel - Dredge Operation --- From: 2026-03-30 To: Until Further Notice --- The Dredge Barge MBI-10 will be working in the Texas City Channel near Texas City Dock 43.  Operations will take place 24-hours a day, 7-days a week.  The T/V ADMIRAL will be the on-scene support vessel.  The dredge requests 1-hour notice for Dock 41 ship traffic.  Mariners are urged to transit the area at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made.  VHF-FM Channels: 12, 13 or 78, POC: (985) 790-6862","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-94.8905,29.36398]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-94.8905,"DECIMAL_LATITUDE":29.363979999999998}},{"type":"Feature","id":40547,"geometry":{"type":"Point","coordinates":[-88.23603999999995,47.18906000000004]},"properties":{"ESRI_OID":40547,"MSI_UID":40547,"ATU":9,"TITLE":"Lake Superior/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116386336,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:saimarriv:laksup","WATERWAY_NAME":"Lake Superior","CREATE_DATE":1775303335000,"MODIFIED_DATE":1775476084000,"BEGIN_DATE":1775088000000,"END_DATE":1790639999000,"DESCRIPTION":"MI – GRAND TRAVERSE BAY HARBOR - LAKE SUPERIOR – Dredging will be taking place inside the Grand Traverse Bay Harbor channel. Work will occur daily from 7 a.m. to 7 p.m. starting approximately 15Apr2026, or whenever channel is clear from ice, and extending to approximately 15Jun2026. A mechanical dredge barge (30’x50’x5’) and two hopper barges (20’x26’x5’) will be engaged in the operation. Channel width will allow traffic to pass outside the marked turbidity curtain. Contact with the operator can be made on VHF channel 16 during operations. Questions can be directed to Bluelinesitesolutions@outlook.com (CGD-GL)","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-88.23604,47.18906]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-88.23604,"DECIMAL_LATITUDE":47.18906}},{"type":"Feature","id":41463,"geometry":{"type":"Point","coordinates":[-73.97593999999998,40.30322000000007]},"properties":{"ESRI_OID":41463,"MSI_UID":41463,"ATU":1,"TITLE":"Sector New York, Submerged Lands Act (SLA)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382294,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact","WATERWAY_NAME":"Sector New York, Submerged Lands Act (SLA)","CREATE_DATE":1776434428000,"MODIFIED_DATE":1776434437000,"BEGIN_DATE":1776384000000,"END_DATE":1809129599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-01 To: 2027-04-30\n\nLocation:\n40-18-11.592N/073-58-33.384W\n\nJ.T. C;eary Inc. will be conducting pile driving operations in Long Branch, NJ, in position 40-18-11.6N, 073-58-33.4W, from May 1, 2026, to April 30, 2027, Monday through Friday, between 5:00am to 6:00pm. Equipment on scene will be an offshore trestle extending 200 feet from shore, monitoring VHF-FM CH 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.97594,40.30322]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.97594,"DECIMAL_LATITUDE":40.303219999999996}},{"type":"Feature","id":42170,"geometry":{"type":"Point","coordinates":[-88.03527999999994,30.67240000000004]},"properties":{"ESRI_OID":42170,"MSI_UID":42170,"ATU":8,"TITLE":"Mobile Channel - Mobile River/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116385077,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secmobexcecozon:secmobtersea:secmobsublanact:mobbay:mobbar:mobcha:mobriv","WATERWAY_NAME":"Mobile River","CREATE_DATE":1777304239000,"MODIFIED_DATE":1777305341000,"BEGIN_DATE":1777248000000,"END_DATE":1789862399000,"DESCRIPTION":"Mobile River - Dredging and Construction --- From: 2026-05-18 To: 2026-09-18 --- Dredging and construction will be conducted at the Modern American Recycling and Radiological Services Dock (MARRS Dock) along the Mobile River.  Operations will be conducted 24-hours a day, 7-days a week.  Work will consist of new and maintenance dredging, ship ramp construction, bulkhead and relieving platform construction, and mooring dolphin installation.  The Crane Barge MARILYN G will be operating in the area with a temporary security/environmental floating boom anchored around the vessel.  The floating boom will move with the vessel throughout the project, while maintaining at least a 75 ft buffer from the toe of the federal channel.  Mariners are urged to transit the project area at their slowest safe speed to minimize wake.  VHF-FM Channel: 72,  POC: (945) 789-6295","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-88.03528,30.6724]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-88.03528,"DECIMAL_LATITUDE":30.672400000000003}},{"type":"Feature","id":42175,"geometry":{"type":"Point","coordinates":[-90.89289999999994,46.94765000000007]},"properties":{"ESRI_OID":42175,"MSI_UID":42175,"ATU":9,"TITLE":"Lake Superior - APOSTLE ISLANDS/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386377,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:saimarriv:laksup:apoisl","WATERWAY_NAME":"APOSTLE ISLANDS","CREATE_DATE":1777305574000,"MODIFIED_DATE":1777305580000,"BEGIN_DATE":1778371200000,"END_DATE":1790985599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-10 To: 2026-10-02\n\nKokosing Industrial will be conducting Stone Breakwall Construction at South End of Devils Island and at Little Sand Bay Marina in Wisconsin 0700-1900 7 days a week. Tug Nancy Anne can be contacted on VHF 13 and 16.  MM 142 barge and Sam II will be working on spuds with Tug Nancy Anne within 400' of Devil's Island.\nOperations primarily located on the south end of Devil's Island.\nPleasure craft and passing vessels should remain a distance of 500' from work at all times.MM 142 barge and Sam II will also be working on spuds with Tug Nancy Anne at Little Sand Bay Marina Operations primarily located within 500' of the Marina. Additional Barges may be moored on an anchor can buoy northwest of Little Sand Bay Marina. Anchor Buoy coordinates N 46°56'56.24\" W 90°53'40.21\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-90.8929,46.94765]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-90.8929,"DECIMAL_LATITUDE":46.947649999999996}},{"type":"Feature","id":42176,"geometry":{"type":"Point","coordinates":[-85.76777999999996,45.02526000000006]},"properties":{"ESRI_OID":42176,"MSI_UID":42176,"ATU":9,"TITLE":"LAKE HURON - LAKE MICHIGAN/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116386256,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic","WATERWAY_NAME":"LAKE MICHIGAN","CREATE_DATE":1777305859000,"MODIFIED_DATE":1777305867000,"BEGIN_DATE":1777766400000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-05-03 To: 2026-12-31\n\nKokosing Industrial will be conducting Dock Construction and Dredging at NE Side of North Manitou Island, West of Leland, MI from 0700-1900 7 days a week. Tug WM Boyd can be contacted on vhf channels 13 and 16. Kokosing IV barge will be working on spuds with Tug WM Boyd within 750' of the island\nOperations primarily located on the NE side of North Manitou Island Pleasure craft and passing vessels should remain a safe distance from the work at all times. Additional barges will be moored on anchor buoys on the East side of the Island\nAnchor Buoy Coordinates N 45°07'4.98\" W 85°58'27.54\" and N 45°07'1.98\" W 85°58'27.12\"\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-85.76778,45.02526]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-85.76778,"DECIMAL_LATITUDE":45.025259999999996}},{"type":"Feature","id":42243,"geometry":{"type":"Point","coordinates":[-70.91755999999998,41.64461000000006]},"properties":{"ESRI_OID":42243,"MSI_UID":42243,"ATU":1,"TITLE":"New Bedford Channel - New Bedford Harbor Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382059,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secsounewengexcecozon:secsounewengtersea:secsounewengsublanact:buzbaymaicha:newbedcha:newbedharcha","WATERWAY_NAME":"New Bedford Harbor Channel","CREATE_DATE":1777371124000,"MODIFIED_DATE":1777371131000,"BEGIN_DATE":1777334400000,"END_DATE":1782518399000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-01 To: 2026-06-26\n\nLocation:\n41-38-40.596N/070-55-03.216W\n\nDW White Construction will be conducting marine construction operations on the Acushnet River, in position 41-38-40.30N, 070-55-03.24W, from May 1, 2026, to June 26, 2026, Monday through Thursday, between 6:00am to 11:00pm. Equipment on scene will be push boats SHEELAGH and ERIN ASHLEY and barges KS1502, POSEIDON SECTIONAL, and LITTLE JEFF, monitoring VHF-FM CH 13, 16, &71. Berm construction will take place during the work hours noted above. The work will take place without silt curtain so as not to impede the navigation of vessels in the channel.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.91756,41.64461]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.91756,"DECIMAL_LATITUDE":41.64461}},{"type":"Feature","id":42463,"geometry":{"type":"Point","coordinates":[-87.63033999999999,41.887740000000065]},"properties":{"ESRI_OID":42463,"MSI_UID":42463,"ATU":9,"TITLE":"LAKE MICHIGAN - Chicago Harbor/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386258,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:chihar","WATERWAY_NAME":"Chicago Harbor","CREATE_DATE":1777465166000,"MODIFIED_DATE":1777465176000,"BEGIN_DATE":1777420800000,"END_DATE":1783295999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-04-29 To: 2026-07-05\n\nA work platform will be in place on the right descending bank of the Chicago River, between the N. Dearborn St. and N. Clark St. Bridges. Placement and work will start on April 29, 2026 through July 5, 2026. The platform is a Sectional Deck with Hull Dimensions of 24’ wide, 40’ long, and 30” high. It will be tied off while working to reface the concrete wall. Contact for Bulley and Andrews is Mr. Hector Capistran and his cell is 773-915-6249. The work platform is being provided by 5R and I will be the contact. Information is listed below.\n\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.63034,41.88774]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.63033999999999,"DECIMAL_LATITUDE":41.88774}},{"type":"Feature","id":42644,"geometry":{"type":"Point","coordinates":[-73.68610999999999,42.70111000000003]},"properties":{"ESRI_OID":42644,"MSI_UID":42644,"ATU":1,"TITLE":"Hudson River - Troy Dam/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381488,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:hudriv:trodam","WATERWAY_NAME":"Troy Dam","CREATE_DATE":1777556427000,"MODIFIED_DATE":1777556432000,"BEGIN_DATE":1777507200000,"END_DATE":1796083199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-11 To: 2026-11-30\n\nLocation:\n42-42-03.996N/073-41-09.996W\n\nCarteret Marine Services will be conducting marine construction operations at the Troy Locks, Hudson River, in position 42-45-04N, 073-41-10W, from May 11, 2026, to November 30, 2026, between 7:00am to 5:00pm. Equipment on scene will be a barge and vessel, monitoring VHF-FM CH 8 & 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.68611,42.70111]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.68611,"DECIMAL_LATITUDE":42.70111}},{"type":"Feature","id":42965,"geometry":{"type":"Point","coordinates":[-90.28511999999995,29.970410000000072]},"properties":{"ESRI_OID":42965,"MSI_UID":42965,"ATU":8,"TITLE":"New Orleans Harbor - New Orleans To Baton Rouge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119138784,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou","WATERWAY_NAME":"New Orleans To Baton Rouge","CREATE_DATE":1777912943000,"MODIFIED_DATE":1777913468000,"BEGIN_DATE":1777852800000,"END_DATE":1782950399000,"DESCRIPTION":"Mississippi River - Material Offloading --- From: 2026-05-04 To: 2026-06-30 --- Material offloading will be conducted along the Mississippi River, LDB, near Mile 115.1, AHOP.  Work will take place 24-hours a day, 7-days a week.  On-scene vessels will include hopper barges, towing vessels and a spud barge.  Mariners are requested to transit the area at their slowest safe speed to minimize wake.  POC: (337) 772-8945 or (337) 323-9373","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-90.28512,29.97041]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-90.28511999999999,"DECIMAL_LATITUDE":29.970409999999998}},{"type":"Feature","id":43196,"geometry":{"type":"Point","coordinates":[-83.46058999999997,43.73613000000006]},"properties":{"ESRI_OID":43196,"MSI_UID":43196,"ATU":9,"TITLE":"LAKE HURON - SAGINAW BAY/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116386126,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:sagbay","WATERWAY_NAME":"SAGINAW BAY","CREATE_DATE":1778083087000,"MODIFIED_DATE":1778083097000,"BEGIN_DATE":1778025600000,"END_DATE":1795823999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-06 To: 2026-11-27\n\nLocation:\n43-44-10.068N/083-27-38.124W\n\nHardman Construction is conducting steel sheet pile and embankment work along the south shore of the Sebewaing River in Sebewaing, MI. Operations are scheduled to conclude on November 27, 2026. Standard work hours are Monday through Friday from 7:00 AM to 5:00 PM, with Saturday operations occurring on an as-needed basis. The project does not employ any temporary aids to navigation or buoys, and no VHF channels are actively monitored by the work crews. Mariners are advised to use extra caution and transit at a slow speed when approaching the stretch of the Sebewaing River between the Sebewaing River Railroad Bridge and the N Center Street Bridge. For additional information, mariners may contact Dave DeClerck at 231-852-4011.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-83.46059,43.73613]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-83.46059,"DECIMAL_LATITUDE":43.736129999999996}},{"type":"Feature","id":43327,"geometry":{"type":"Point","coordinates":[-93.29321999999996,30.087890000000073]},"properties":{"ESRI_OID":43327,"MSI_UID":43327,"ATU":8,"TITLE":"New Orleans Port Arthur/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384625,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:sechouexcecozon:secneworltersea:sechoutersea:secneworlsublanact:sechousublanact:neworl","WATERWAY_NAME":"New Orleans Port Arthur","CREATE_DATE":1778244119000,"MODIFIED_DATE":1778245736000,"BEGIN_DATE":1778198400000,"END_DATE":1789862399000,"DESCRIPTION":"GIWW, Mile 238.5, WHL - Calcasieu Lock - Lock Closure --- From: 2026-05-18 To: 2026-09-18 --- The Calcasieu Lock will be closed to navigation from 7:00 a.m. until 7:00 p.m., Monday through Friday, for north chamber wall repairs.  For up-to-date information regarding the lock closure, mariners can contact the Lockmaster at (337) 477-1482.  POC: USACE (504) 862-2060, (504) 862-1061 and 504) 862-2630\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-93.29322,30.08789]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-93.29321999999999,"DECIMAL_LATITUDE":30.087889999999998}},{"type":"Feature","id":43379,"geometry":{"type":"Point","coordinates":[-91.07110999999998,30.206360000000075]},"properties":{"ESRI_OID":43379,"MSI_UID":43379,"ATU":8,"TITLE":"New Orleans Harbor - New Orleans To Baton Rouge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100119138784,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou","WATERWAY_NAME":"New Orleans To Baton Rouge","CREATE_DATE":1778260061000,"MODIFIED_DATE":1778504668000,"BEGIN_DATE":1778198400000,"END_DATE":1796169599000,"DESCRIPTION":"Mississippi River - Material Offloading --- From: 2026-05-08 To: 2026-11-30 --- Material offloading will be conducted along the Mississippi River, RDB, near Claiborne Landing, Mile 188.0, AHOP.  Work will take place 24-hours a day, 7-days a week.  On-scene vessels will include hopper barges, towing vessels and a crane spud barge.  Mariners are requested to transit the area at their slowest safe speed to minimize wake.  POC: (337) 772-8945 or (337) 323-9373","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.07111,30.20636]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.07110999999999,"DECIMAL_LATITUDE":30.20636}},{"type":"Feature","id":43395,"geometry":{"type":"Point","coordinates":[-91.20844999999997,30.430960000000027]},"properties":{"ESRI_OID":43395,"MSI_UID":43395,"ATU":8,"TITLE":"New Orleans Harbor - New Orleans To Baton Rouge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385061,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou","WATERWAY_NAME":"New Orleans To Baton Rouge","CREATE_DATE":1778266386000,"MODIFIED_DATE":1778504735000,"BEGIN_DATE":1778198400000,"END_DATE":1830297599000,"DESCRIPTION":"Port Allen Canal - Port Allen Lock - Lock Restrictions/Special Instructions --- From: April 2021 To: Until Further Notice --- The following westbound restrictions are in place regarding the Port Allen Lock’s northeast floating guide wall:\n• All tows with more than one barge are required to use an assist vessel with a line attached at the head of the tow.\n• Single barge tows will be permitted to lock westbound without an assist vessel.\n• Vessels should not attempt to “pivot” on the guide wall; therefore, vessels must flatten-out before contacting the guide wall. \nFor additional information, mariners can contact the Port Allen Lockmaster at (225) 343-3752. ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.20845,30.43096]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.20845,"DECIMAL_LATITUDE":30.43096}},{"type":"Feature","id":43636,"geometry":{"type":"Point","coordinates":[-81.83588999999995,41.48924000000005]},"properties":{"ESRI_OID":43636,"MSI_UID":43636,"ATU":9,"TITLE":"Niagara River - Lake Erie/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100117076333,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri","WATERWAY_NAME":"Lake Erie","CREATE_DATE":1778677820000,"MODIFIED_DATE":1778677829000,"BEGIN_DATE":1780272000000,"END_DATE":1785628799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-06-01 To: 2026-08-01\n\nLocation: Dredging in Rocky River Harbor\n\nTug John Francis/ Tug Prairieland conducting dredging from 0700 to 1900 7 days a week.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-81.83589,41.48924]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-81.83588999999999,"DECIMAL_LATITUDE":41.489239999999995}},{"type":"Feature","id":43642,"geometry":{"type":"Point","coordinates":[-70.35424999999998,43.46294000000006]},"properties":{"ESRI_OID":43642,"MSI_UID":43642,"ATU":1,"TITLE":"Sector Northern New England, Submerged Lands Act (SLA) - Saco River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381806,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnornewengexcecozon:secnornewengtersea:secnornewengsublanact:sacriv","WATERWAY_NAME":"Saco River","CREATE_DATE":1778679615000,"MODIFIED_DATE":1778679624000,"BEGIN_DATE":1778630400000,"END_DATE":1788220799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-01 To: 2026-08-31\n\nLocation:\n43-27-46.584N/070-21-15.300W\n\nMohawk Northeast will be conducting marine construction operations for the North Jetty Spur Construction project in Saco, Maine, scheduled to occur from June 2026 through August 2027. The work will take place onsite at Saco Bay and Saco River, with a haul route extending from Saco Bay to Portland Harbor. Operations will be conducted Monday through Friday, with 10-hour workdays. The project will utilize two tug boats, one push boat, one work skiff, two work barges, and two material barges. Vessel communications will be managed via VHF channels 13 and 16, with the vessel master making security calls and coordinating passing arrangements to avoid impeding navigation. \n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.35425,43.46294]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.35425,"DECIMAL_LATITUDE":43.462939999999996}},{"type":"Feature","id":43712,"geometry":{"type":"Point","coordinates":[-70.70505999999995,41.74938000000003]},"properties":{"ESRI_OID":43712,"MSI_UID":43712,"ATU":1,"TITLE":"Buzzards Bay Main Channel - Weweantic River/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100118362028,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secsounewengexcecozon:secsounewengtersea:secsounewengsublanact:buzbaymaicha:wewriv","WATERWAY_NAME":"Weweantic River","CREATE_DATE":1778773146000,"MODIFIED_DATE":1778773154000,"BEGIN_DATE":1781654400000,"END_DATE":1790899199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-06-17 To: 2026-10-01\n\nLocation:\n41-44-57.768N/070-42-18.216W\n\nAGM Marine Contractors, will be conducting dredging operations in the Wareham River, Wareham, Massachusetts, in position 41-44-57.75N, 070-42-18.21W. The project is scheduled to run from July 1, 2026, through September 31, 2026, and will operate continuously, seven days a week, 24 hours per day. The equipment involved includes the Dredge Triton, crane, scow, and tugs. To ensure safe navigation, vessels in the area can contact the operation on radio frequency 66 and are advised to provide a 15-minute notice for passing arrangements, with the dredging vessel remaining out of the channel when necessary.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.70506,41.74938]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.70506,"DECIMAL_LATITUDE":41.749379999999995}},{"type":"Feature","id":43729,"geometry":{"type":"Point","coordinates":[-87.65530999999999,44.09239000000008]},"properties":{"ESRI_OID":43729,"MSI_UID":43729,"ATU":9,"TITLE":"Manistee - Manitowoc Harbor of Refuge/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116386214,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:man:manharofref","WATERWAY_NAME":"Manitowoc Harbor of Refuge","CREATE_DATE":1778778510000,"MODIFIED_DATE":1778778517000,"BEGIN_DATE":1779235200000,"END_DATE":1781567999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-05-20 To: 2026-06-15\n\nThe barge Derrick 3 will also be monitoring radio channels 7 & 16. Dredging will be performed near Burger Boat and barges of dredge material will be moved to the Spring Street Dock for offloading. Please contact Roen's office at 920-743-6533 to recieve on-site contact info if traveling to the Spring Street Dock or St. Mary's Cement. All mariners are requested to navigate around equipment with caution and to leave no wake near dredging equipment.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-87.65531,44.09239]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-87.65531,"DECIMAL_LATITUDE":44.092389999999995}},{"type":"Feature","id":43769,"geometry":{"type":"Point","coordinates":[-156.67853999999997,20.871180000000038]},"properties":{"ESRI_OID":43769,"MSI_UID":43769,"ATU":14,"TITLE":"Sector Honolulu, Territorial Sea - Maui Island/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116385705,"MRN":"urn:mrn:iala:wwy:us:navXII:dis14:sechonexcecozon:sechontersea:mauisl","WATERWAY_NAME":"Maui Island","CREATE_DATE":1778798721000,"MODIFIED_DATE":1778798728000,"BEGIN_DATE":1778716800000,"END_DATE":1790899199000,"DESCRIPTION":"LAHAINA SMALL BOAT HARBOR MAINT. DREDGING\nDredging operations within the Lahaina Small Boat Harbor entrance channel will start on or around June 1, 2026, anticipates completing operations by October 1, 2026. Working hours on the project will be 0700 to 1800 hours Monday through Friday, excluding\nholidays.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-156.67854,20.87118]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-156.67854,"DECIMAL_LATITUDE":20.87118}},{"type":"Feature","id":43910,"geometry":{"type":"Point","coordinates":[-95.57274999999998,28.793120000000044]},"properties":{"ESRI_OID":43910,"MSI_UID":43910,"ATU":8,"TITLE":"Sector Houston-Galveston, Submerged Land Act (SLA)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384754,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact","WATERWAY_NAME":"Sector Houston-Galveston, Submerged Land Act (SLA)","CREATE_DATE":1779120189000,"MODIFIED_DATE":1779121077000,"BEGIN_DATE":1779062400000,"END_DATE":1789516799000,"DESCRIPTION":"GIWW - Vessel Staging and Rip Rap Loading/Offloading --- From: June 2026 To: September 2026 --- Onshore loading and offloading of rip rap onto barges will be conducted at the Sargent Park Pier, located along the GIWW in the vicinity of Mile 415.0, WHL.  Loading and offloading will be conducted daily, from sunrise to sunset.  A maximum of six hopper barges will be tied up at this location at any time.  All four corners of seaward barges will be lit with solar barge lights.  Barges will not protrude into channel and will stay inside the cut of the bulkhead.  Mariners are urged to transit the area at their slowest safe speed to minimize wake.  VHF-FM Channels: 13 and 16, POC:  (225) 347-4339","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-95.57275,28.79312]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-95.57275,"DECIMAL_LATITUDE":28.79312}},{"type":"Feature","id":43918,"geometry":{"type":"Point","coordinates":[-74.01863999999995,40.65494000000007]},"properties":{"ESRI_OID":43918,"MSI_UID":43918,"ATU":1,"TITLE":"Main Channel - Bay Ridge Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382308,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:bayridcha","WATERWAY_NAME":"Bay Ridge Channel","CREATE_DATE":1779123198000,"MODIFIED_DATE":1779123230000,"BEGIN_DATE":1780272000000,"END_DATE":1781049599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-01 To: 2026-06-09\n\nLocation:\n40-39-17.784N/074-01-07.104W\n\nBillion Oyster Project will be mobilizing two spud barges with tug boat and small boats from Governor's Island to the project site off Bush Terminal Park on Monday, June 1. These barges will be on station at Bush Terminal Park from June 1 – 8, Monday -Friday during daylight hours. The barges will be supporting a crane and excavator engaged in building underwater oyster reef habitat.  in position 40°39'17.47\"N, 74°01'06.85\"W Vessels will be monitoring VHF FM CH 13 and 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.01864,40.65494]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.01863999999999,"DECIMAL_LATITUDE":40.654939999999996}},{"type":"Feature","id":43987,"geometry":{"type":"Point","coordinates":[-70.86230999999998,42.53047000000004]},"properties":{"ESRI_OID":43987,"MSI_UID":43987,"ATU":1,"TITLE":"Sector Boston, Submerged Land Act (SLA) - Salem Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100117254185,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secbosexcecozon:secbostersea:secbossublanact:salcha","WATERWAY_NAME":"Salem Channel","CREATE_DATE":1779193752000,"MODIFIED_DATE":1780500264000,"BEGIN_DATE":1779148800000,"END_DATE":1781913599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-01 To: 2026-06-19\n\nLocation:\n42-31-49.692N/070-51-44.316W\n\nAGM Marine Contractors, Inc., submitted an LNM Information Form detailing the planned removal of the Abbott Rock Daybeacon  foundation and wreckage of the aid from a storm in 2019 in Salem Harbor, Massachusetts for the U.S. Coast Guard. The project is scheduled to occur between June 1 and June 19, 2026, operating a single daylight shift from 6 AM to 8 PM daily, weather permitting. Equipment on scene will include the dredge \"PRONCKAI,\" deck barge \"THING,\" and tug \"SITKA,\" with vessels monitoring radio channels 13/16 and working on channel 68. No passing arrangements are required, and navigation will not be impeded.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.86231,42.53047]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.86231,"DECIMAL_LATITUDE":42.53047}},{"type":"Feature","id":44014,"geometry":{"type":"Point","coordinates":[-70.88169999999997,42.53844000000004]},"properties":{"ESRI_OID":44014,"MSI_UID":44014,"ATU":1,"TITLE":"Salem Channel - Beverly Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382020,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secbosexcecozon:secbostersea:secbossublanact:salcha:bevcha","WATERWAY_NAME":"Beverly Channel","CREATE_DATE":1779196346000,"MODIFIED_DATE":1780500018000,"BEGIN_DATE":1779148800000,"END_DATE":1781913599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-006-01 To: 2026-06-19\n\nLocation:\n42-32-18.384N/070-52-54.120W\n\nAGM Marine Contractors, Inc. will conduct the removal of the Lobster Rock Daybeacon foundation and wreckage of the aid from a storm in 2019 in Salem Harbor, Massachusetts, for the U.S. Coast Guard. The operation is scheduled to take place between June 1 and June 19, 2026, with work occurring daily from 6 AM to 8 PM, weather permitting. The project will utilize the dredge \"PRONCKAI,\" deck barge \"THING,\" and tug \"SITKA,\" with vessels monitoring radio frequencies 13 and 16 and working on channel 68. No passing arrangements are necessary, and navigation is not expected to be impeded.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.8817,42.53844]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.88170000000001,"DECIMAL_LATITUDE":42.53844}},{"type":"Feature","id":44185,"geometry":{"type":"Point","coordinates":[-122.62719999999996,47.552730000000054]},"properties":{"ESRI_OID":44185,"MSI_UID":44185,"ATU":13,"TITLE":"Rich Passage - SinclairInlet/General/Marine Construction (Excluding Bridges)/Boring and Core Samples","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Boring and Core Samples","WTRW_UID":100116385844,"MRN":"urn:mrn:iala:wwy:us:navXII:dis13:secpugsouexcecozon:secpugsoutersea:secpugsousublanact:strofjuadefuc:adminl:pugsou:ricpas:sininl","WATERWAY_NAME":"SinclairInlet","CREATE_DATE":1779310118000,"MODIFIED_DATE":1779310136000,"BEGIN_DATE":1781481600000,"END_DATE":1782259199000,"DESCRIPTION":"WSDOT plans to conduct sediment sampling in the marine waters of Sinclair Inlet. The sampling will occur between the cities of Bremerton and Port Orchard in Kitsap County, Washington. Planned in-water activities include sediment sampling at 10 locations to provide information about potential contaminants. Samples will be collected with a vibracore device to a maximum depth of 10 feet below the seafloor. Working days are planned for Monday, June 22, 2026 through Tuesday, June 23, 2026, 0700 to 1700. On-site equipment will include a RIC 5500 vibracore device mounted on the 36’ RV Ingalls survey vessel. Mariners are requested to reduce speed and avoid the work area. During non-working hours, the survey vessel will not be on-site. Please call Shawn Hinz at 425-281-1471 or email at shawn@gravitymarine.com for more information.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-122.6272,47.55273]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-122.6272,"DECIMAL_LATITUDE":47.55273}},{"type":"Feature","id":44186,"geometry":{"type":"Point","coordinates":[-123.01687999999996,46.13790000000006]},"properties":{"ESRI_OID":44186,"MSI_UID":44186,"ATU":13,"TITLE":"Columbia River - Crims Island To St Helens/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116385611,"MRN":"urn:mrn:iala:wwy:us:navXII:dis13:seccolrivexcecozon:seccolrivtersea:seccolrivsublanact:colriv:criisltosthel","WATERWAY_NAME":"Crims Island To St Helens","CREATE_DATE":1779310298000,"MODIFIED_DATE":1779310310000,"BEGIN_DATE":1779235200000,"END_DATE":1782777599000,"DESCRIPTION":"The Dredge Oregon under contract with the Port of Portland will perform maintenance dredging at Lord Island, on the Oregon side outside of the channel, between RM 62+18 and RM 63+10, commencing on approximately 01 Jun with an anticipated completion on 25 Jun 25.  Dredge Oregon, along with workboats Clackamas, Ivanhoff, and Cowlitz monitor VHF 13 and 16. Mariners are requested to contact the dredge to make passing arrangements and proceed with minimum wake. Dredge personnel may also be reached by phone at (503) 369-1505 or (503) 789-7238.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-123.01688,46.1379]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-123.01688,"DECIMAL_LATITUDE":46.1379}},{"type":"Feature","id":44257,"geometry":{"type":"Point","coordinates":[-74.21853999999996,39.64471000000003]},"properties":{"ESRI_OID":44257,"MSI_UID":44257,"ATU":5,"TITLE":"Cape May Inlet - New Jersey Intracoastal Waterway/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382911,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secdelbayexcecozon:secdelbaytersea:secdelbaysublanact:capmayinl:newjerintwat","WATERWAY_NAME":"New Jersey Intracoastal Waterway","CREATE_DATE":1779386567000,"MODIFIED_DATE":1779386665000,"BEGIN_DATE":1779321600000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-21 To: 2026-12-31\n\nLocation:\n39-38-40.956N/074-13-06.744W\n\nResilientSeas will conduct rock sill construction along the eastern edge of Popular Point. Dredging will occur on Mill Creek with placement of dredged material behind rock sill at Popular Point. Approximate position: 39° 38' 40.956\" N 74° 13' 06.744\" W from 6/8/26 to 12/31/26, 5 AM to 8 PM. Multiple barges with excavators, hopper barges and push boats will be in the vicinity. All maned equipment will monitor VHF FM 82 and 16. MSI # 44257.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.21854,39.64471]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.21853999999999,"DECIMAL_LATITUDE":39.644709999999996}},{"type":"Feature","id":44267,"geometry":{"type":"Point","coordinates":[-122.29266999999999,47.64626000000004]},"properties":{"ESRI_OID":44267,"MSI_UID":44267,"ATU":13,"TITLE":"Lake Union - Union Bay Reach/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385920,"MRN":"urn:mrn:iala:wwy:us:navXII:dis13:secpugsouexcecozon:secpugsoutersea:secpugsousublanact:strofjuadefuc:adminl:pugsou:shibay:lakuni:unibayrea","WATERWAY_NAME":"Union Bay Reach","CREATE_DATE":1779400124000,"MODIFIED_DATE":1779400132000,"BEGIN_DATE":1779321600000,"END_DATE":1793663999000,"DESCRIPTION":"Redside Construction, Inc. will be conducting marine demolition and float system installation at Foster Island, WA for the WA Park Arboretum Waterfront Trail Renovation, in approximate location 47-38.78’ N 122-17.551W, from 16 May 2026 through 01 Nov 2026.  A 40’ x 90’ barge and support vessels will be staged off the pier face and will be monitoring VHF-FM channels 13 and 16.  White flashing lights will be used to demarcate the barge. Mariners are requested to use caution and reduce wake when transiting the area.  For additional information, contact Jeremy Helser at (360) 250-4328 or Sam Berry at (206) 940-0564. ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-122.29267,47.64626]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-122.29267,"DECIMAL_LATITUDE":47.64626}},{"type":"Feature","id":44288,"geometry":{"type":"Point","coordinates":[-88.40635999999995,47.187640000000044]},"properties":{"ESRI_OID":44288,"MSI_UID":44288,"ATU":9,"TITLE":"Keweenaw Waterway - Torch Lake Canal/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116386376,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:saimarriv:laksup:kewuppent:kewwat:torlakcan","WATERWAY_NAME":"Torch Lake Canal","CREATE_DATE":1779450881000,"MODIFIED_DATE":1780447617000,"BEGIN_DATE":1780272000000,"END_DATE":1793491199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-06-01 To: 2026-10-31\n\nU.S. Environmental Protection Agency Great Lakes National Program Office (GLNPO) will commence on or about June 01, 2026, in Torch Lake adjacent to the Lake Linden Recreation Area in the Village of Lake Linden, Houghton County, Michigan. The work area is a 3.2-acre dredge footprint covering approximately 1,300 LF along the Northwestern shoreline of Torch Lake from approximately 47°11’20.7371”N 088°24’25.0909”W to 47°11’16.2637”N 088°24’20.8101”W and a sediment processing/unloading dock located at approximately 47°10’35.0189”N 088°25’10.1927”W. Loaded and unloaded hopper barges will be towed approximately 1.2 miles between the Dredging Area and Sediment Area Processing Dock as needed.\n\n\nThree turbidity monitoring buoys will be deployed in support of the work. Four (4) No Wake/No Entry buoys will be installed in the immediate vicinity of dredging work areas. Brennan will also install approximately 550 linear feet of temporary sheet piling along the western edge of the dredge area to facilitate near-shore dredge cuts. Buoys will be marked with navigation lights pursuant to 33 CFR 62.45 to indicate the work areas and project equipment. Inside the Dredging Area, Barge Lane, and Sediment Processing Dock Area, equipment consisting of the Tug Debra Mary, the JFB 4400 (Dean Barge), the BMI 102 and BMI 103 material barges, the JFB 4477 spud barge, the Alton Barge, four S-50 sectional barges, the JFB 7771 survey vessel, push boats, and small skiffs will operate from approximately 6:00 AM to 6:00 PM, Monday-Saturday. See the attached drawings to show the project location and operations areas.\n\n\nAll vessels and crew will monitor VHF channel 16 during the project execution. On-water operations are expected to commence June 1, 2026. Mechanical dredging is currently scheduled from approximately July 1, 2026 through August 19, 2026, with backfill and demobilization continuing through October 19, 2026 (on-site construction complete date) and final project close-out by December 31, 2026.\n\n Hours of operation are from 0600-1800 7 days a week.\n\nJFB Vessels – Dean Barge, Tug Debra Mary, JFB 7771 Channel 16 and 22a\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-88.40636,47.18764]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-88.40635999999999,"DECIMAL_LATITUDE":47.187639999999995}},{"type":"Feature","id":44289,"geometry":{"type":"Point","coordinates":[-82.50713999999994,43.25888000000003]},"properties":{"ESRI_OID":44289,"MSI_UID":44289,"ATU":9,"TITLE":"PORT HURON TO PTE AUX BARQUES - LAKE HURON/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100117873287,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur","WATERWAY_NAME":"LAKE HURON","CREATE_DATE":1779451521000,"MODIFIED_DATE":1779451528000,"BEGIN_DATE":1779753600000,"END_DATE":1783814399000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-05-26 To: 2026-07-11\n\nMechanical, Hydraulic Dredging 24/7 in Lexington Harbor, Michigan 43°16'09.36\"N 82°31'24.10\"W to 43°15'55.56\"N 82°31'15.55\"W. Megan J. Edward H monitoring VHF channels 16 and 78. Keep a safe distance from all marine dredging equipment. The submerged pipeline is marked with buoys. Keep away from buoys and submerged pipeline.\n\n\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-82.50714,43.25888]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-82.50713999999999,"DECIMAL_LATITUDE":43.25888}},{"type":"Feature","id":44290,"geometry":{"type":"Point","coordinates":[-86.28572999999994,42.40206000000006]},"properties":{"ESRI_OID":44290,"MSI_UID":44290,"ATU":9,"TITLE":"LAKE MICHIGAN - South Haven/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116386226,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv:lakstcla:stclariv:lakhur:lakmic:souhav","WATERWAY_NAME":"South Haven","CREATE_DATE":1779452330000,"MODIFIED_DATE":1779452337000,"BEGIN_DATE":1779753600000,"END_DATE":1783036799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-05-26 To: 2026-07-02\n\nHydraulic dredging in South Haven Federal Channel 24/7 weather depending. Dredge Buxton II monitoring VHF channels 16, 18 and 73. Dredging the South Haven Harbor Federal channel. Submerged pipe lying on the lake floor marked by orange round buoys every 500 feet. (2) white buoys will be seen North and South of the dredge. The white buoys indicate winch anchor locations. The disposal area starts South of the South breakwater 1,900’ and goes an additional 5,800’ Southward. Placement will be between the 4’ depth contour to the 8’ depth contour. The main contact will be Superintendent Joseph Martin. Cell# listed below. During rough seas our pipe pontoon will be floating outside of the channel. It is bright yellow, 25’x8’x6’ and has (2) flashing amber lights on each end that come on at night. Another pipe pontoon that is bright yellow (25’x8’x6’) and has (2) flashing amber lights on each end will be in the disposal area. The disposal area will be marked with white ball buoys on each corner.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-86.28573,42.40206]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-86.28573,"DECIMAL_LATITUDE":42.40206}},{"type":"Feature","id":44318,"geometry":{"type":"Point","coordinates":[-74.28414999999995,40.50112000000007]},"properties":{"ESRI_OID":44318,"MSI_UID":44318,"ATU":1,"TITLE":"Raritan River Cutoff Channel - Raritan River/General/Marine Construction (Excluding Bridges)/Boring and Core Samples","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Boring and Core Samples","WTRW_UID":100116382111,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:swacha:rarbay:rarrivcutcha:rarriv","WATERWAY_NAME":"Raritan River","CREATE_DATE":1779466397000,"MODIFIED_DATE":1779466404000,"BEGIN_DATE":1779408000000,"END_DATE":1781827199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Boring and Core Samples\n\nFrom: 2026-05-22 To: 2026-06-18\n\nLocation:\n40-30-04.032N/074-17-02.940W\n\nCoastal Monitoring Associates submitted a Local Notice to Mariners (LNM) Information Form to the U.S. Coast Guard First District for an environmental monitoring project in Perth Amboy, New Jersey. Led by Christopher Pickerell, the project will conduct water quality and sediment sampling along the Raritan River shoreline and near the channel, with operations scheduled from June 1 to June 18, 2026. Sampling will occur six days per week, ten hours per day, using a 23-foot pontoon boat anchored at station coordinates 40° 30' 4.204728\" N, 74° 17' 2.251068\" W. The vessel will monitor VHF radio channel 16 and can be moved within 60 minutes to avoid impeding navigation.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-74.28415,40.50112]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-74.28415,"DECIMAL_LATITUDE":40.50112}},{"type":"Feature","id":44433,"geometry":{"type":"Point","coordinates":[-81.62860999999998,30.31863000000004]},"properties":{"ESRI_OID":44433,"MSI_UID":44433,"ATU":7,"TITLE":"Sector Jacksonville, Submerged Land Act (SLA) - St Johns River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116383440,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secjacexcecozon:secjactersea:secjacsublanact:stjohriv","WATERWAY_NAME":"St Johns River","CREATE_DATE":1779805612000,"MODIFIED_DATE":1779805628000,"BEGIN_DATE":1779753600000,"END_DATE":1809129599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-05-26 \n44433\n\nLocation:\n30-19-07.068N/081-37-42.996W\n\nBranch Diversified for the dredging and Hal Jones for construction will be conducting initial dredging and then construction of mooring dolphins. Operations will be ongoing until approximately February 28, 2027, during day light hours Monday to Friday. Entire work area will be within turbidity barrier attached to piles to hold them in position.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-81.62861,30.31863]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-81.62861,"DECIMAL_LATITUDE":30.31863}},{"type":"Feature","id":44465,"geometry":{"type":"Point","coordinates":[-73.98257999999998,40.70580000000007]},"properties":{"ESRI_OID":44465,"MSI_UID":44465,"ATU":1,"TITLE":"Main Channel - East River Main Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382291,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnewyorexcecozon:secnewyortersea:secnewyorsublanact:ambcha:maicha:easrivmaicha","WATERWAY_NAME":"East River Main Channel","CREATE_DATE":1779817640000,"MODIFIED_DATE":1779817647000,"BEGIN_DATE":1783296000000,"END_DATE":1798761599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-07-20 To: 2026-12-31\n\nLocation:\n40-42-20.880N/073-58-57.288W\n\nThis Local Notice to Mariners (LNM) report, submitted to the U.S. Coast Guard First District, announces upcoming waterborne crane operations in support of building construction on the East River, New York. The project, managed by Grace Industries LLC, will take place at coordinates 40° 42.348'N, 073° 58.955'W, from July 20, 2026, through December 31, 2026. Operations are scheduled Monday through Saturday, 6:00 AM to 6:00 PM, with cranes and material barges present at the site. Mariners in the area are advised to use slow speed (“slowbell”) near the crane operations and may contact the operation via marine radio channels 16, 13, and 61A for coordination. \n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.98258,40.7058]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.98258,"DECIMAL_LATITUDE":40.7058}},{"type":"Feature","id":44476,"geometry":{"type":"Point","coordinates":[-91.36805999999996,29.70219000000003]},"properties":{"ESRI_OID":44476,"MSI_UID":44476,"ATU":8,"TITLE":"WaxLakeOutlet-WaxSouthChannel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384920,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:atcbay:newpas:waxlakeout:waxsoucha","WATERWAY_NAME":"WaxLakeOutlet-WaxSouthChannel","CREATE_DATE":1779822911000,"MODIFIED_DATE":1779881912000,"BEGIN_DATE":1779753600000,"END_DATE":1782431999000,"DESCRIPTION":"Bayou Teche - Floodgate Closure --- Reported: 2026-05-26 --- The East Calumet Floodgate is closed to marine traffic until further notice due to high water.  Mariners are urged to contact the floodgate prior to transiting the area.  POC: (985) 384-6334 or (985) 384-7697","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.36806,29.70219]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.36806,"DECIMAL_LATITUDE":29.702189999999998}},{"type":"Feature","id":44477,"geometry":{"type":"Point","coordinates":[-91.37446999999997,29.70398000000006]},"properties":{"ESRI_OID":44477,"MSI_UID":44477,"ATU":8,"TITLE":"WaxLakeOutlet-WaxSouthChannel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384920,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:atcbay:newpas:waxlakeout:waxsoucha","WATERWAY_NAME":"WaxLakeOutlet-WaxSouthChannel","CREATE_DATE":1779822970000,"MODIFIED_DATE":1779881896000,"BEGIN_DATE":1779753600000,"END_DATE":1782431999000,"DESCRIPTION":"Bayou Teche - Floodgate Closure --- Reported: 2026-05-26 --- The West Calumet Floodgate is closed to marine traffic until further notice due to high water.  Mariners are urged to contact the floodgate prior to transiting the area.  POC: (985) 384-6334 or (985) 384-7697","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.37447,29.70398]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.37447,"DECIMAL_LATITUDE":29.703979999999998}},{"type":"Feature","id":44542,"geometry":{"type":"Point","coordinates":[-91.20844999999997,30.430960000000027]},"properties":{"ESRI_OID":44542,"MSI_UID":44542,"ATU":8,"TITLE":"New Orleans Harbor - New Orleans To Baton Rouge/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385061,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou","WATERWAY_NAME":"New Orleans To Baton Rouge","CREATE_DATE":1779890899000,"MODIFIED_DATE":1779891591000,"BEGIN_DATE":1779840000000,"END_DATE":1781827199000,"DESCRIPTION":"Port Allen Canal - Port Allen Lock - Lock Closure --- From: 2026-06-01 To: 2026-06-17 --- The Port Allen Lock will have intermittent closures for up to 6-hours, between 7:00 a.m. and 7:00 p.m., for replacement of the lock operating valve.  For on-scene information, mariners can contact the Port Allen Lockmaster at (225) 343-3752.  POC: USACE (504) 862-2060 or (504) 862-1061","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-91.20845,30.43096]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-91.20845,"DECIMAL_LATITUDE":30.43096}},{"type":"Feature","id":44717,"geometry":{"type":"Point","coordinates":[-73.76526999999999,40.81027000000006]},"properties":{"ESRI_OID":44717,"MSI_UID":44717,"ATU":1,"TITLE":"Long Island Sound Western Part - Little Neck Bay Approach/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116381670,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:seclonislsouexcecozon:seclonislsoutersea:seclonislsousublanact:bloislsouandgarbay:lonislsoueaspar:lonislsouwespar:litnecbayapp","WATERWAY_NAME":"Little Neck Bay Approach","CREATE_DATE":1779975025000,"MODIFIED_DATE":1779975035000,"BEGIN_DATE":1779926400000,"END_DATE":1782950399000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-05-28 To: 2026-07-01\n\nLocation:\n40-48-36.972N/073-45-54.972W\n\nBreakwater Marine LLC will conduct dredging operations in Hague Basin, located in Narrow Bay/Great South Bay, New York, at coordinates 40°48'37\" N / 73°45'55\" W. The project is scheduled from May 29 to July 1, 2026, operating daily from 6:00 AM to 6:00 PM. Equipment on site will include a 60' x 155' dredge, a 25' x 14' pushboat, ten 35' x 200' scows, and a 20' x 8' aluminum work skiff. Vessels can be contacted via radio frequencies 13 and 16. Navigation safety measures include a 60-minute window to move vessels if needed, with a maximum of six barges moored at any time, gates to allow vessel passage, and turbidity curtains for environmental protection. The site is adjacent to the U.S. Merchant Marine Academy and other local landmarks.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-73.76527,40.81027]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-73.76527,"DECIMAL_LATITUDE":40.810269999999996}},{"type":"Feature","id":44735,"geometry":{"type":"Point","coordinates":[-96.62202999999994,28.620940000000076]},"properties":{"ESRI_OID":44735,"MSI_UID":44735,"ATU":8,"TITLE":"Matagorda Ship Channel - Port Lavaca Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385143,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:seccorchrexcecozon:seccorchrtersea:seccorchrsublanact:matshicha:porlavcha","WATERWAY_NAME":"Port Lavaca Channel","CREATE_DATE":1779981669000,"MODIFIED_DATE":1779982041000,"BEGIN_DATE":1779926400000,"END_DATE":1793145599000,"DESCRIPTION":"Lavaca Bay - Port Lavaca - Shoreline Protection Construction --- From: 2026-05-28 To: 2026-10-26 --- Construction of living shoreline protection consisting of a rock breakwater, a reef breakwater, and two marsh creation islands will be conducted in Lavaca Bay, near approximate position 28-37-15.46N 096-37-19.32W.  Operations will be conducted daily, during daylight hours.   On-scene vessels will include two crew boats and a towing vessel.  Mariners are requested to transit the area at their slowest safe speed to minimize wake.  VHF-FM Channel: 10, POC: (985) 992-6827","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-96.62203,28.62094]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-96.62203,"DECIMAL_LATITUDE":28.620939999999997}},{"type":"Feature","id":44745,"geometry":{"type":"Point","coordinates":[-122.32229999999998,47.53404000000006]},"properties":{"ESRI_OID":44745,"MSI_UID":44745,"ATU":13,"TITLE":"Elliott Bay - Duwamish Waterway East/General/Marine Construction (Excluding Bridges)/Boring and Core Samples","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Boring and Core Samples","WTRW_UID":100118213969,"MRN":"urn:mrn:iala:wwy:us:navXII:dis13:secpugsouexcecozon:secpugsoutersea:secpugsousublanact:strofjuadefuc:adminl:pugsou:ellbay:duwwateas","WATERWAY_NAME":"Duwamish Waterway East","CREATE_DATE":1779985683000,"MODIFIED_DATE":1779985693000,"BEGIN_DATE":1780272000000,"END_DATE":1788307199000,"DESCRIPTION":"Anchor QEA will conduct sediment sampling work on the Lower Duwamish Waterway starting on June 1, 2026, and extending through August 2026. The work will primarily occur in on the Georgetown Reach and 1st Ave-8th Ave Reach (from just upstream of Slip 4 to just downstream of Slip 2) and will be both within and outside of the federal navigation channel. This project is EPA-approved and involves small work vessels conducting marine sampling. The planned work schedule is 0700-1900 Monday – Friday. Work vessels may be able to move for river traffic.  Mariners planning to transit this stretch of the Duwamish are encouraged to contact the vessels in advance via VHF-FM 16/13 or phone, or call the project coordinator, Suzanne Replinger at (206) 709-6850.  \n\nVessels anticipated to be involved in sampling work will be operated by Gravity Marine (425-281-1471):  \nR/V Tieton (sampling vessel) \nR/V Munson (support vessel) ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-122.3223,47.53404]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-122.32230000000001,"DECIMAL_LATITUDE":47.53404}},{"type":"Feature","id":44852,"geometry":{"type":"Point","coordinates":[-81.69048999999995,38.37315000000007]},"properties":{"ESRI_OID":44852,"MSI_UID":44852,"ATU":2,"TITLE":"Ohio River - Kanawha River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381292,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:neworlhar:neworltobatrou:lowmisriv:ohiriv:kanriv","WATERWAY_NAME":"Kanawha River","CREATE_DATE":1780072477000,"MODIFIED_DATE":1780316163000,"BEGIN_DATE":1780012800000,"END_DATE":1782604799000,"DESCRIPTION":"Commencing June 1, 2026, and continuing through June 26, 2026, water testing equipment maintenance will be conducted on the Kanawha River, in the vicinity of the southern channel at Mile 55.0, near Blaine Island.  Operations will be conducted during daylight hours.  Vessels are urged to transit the area with extreme caution and at their slowest safe speed.  For additional information, mariners can contact U.S. Coast Guard Sector Ohio Valley on VHF-FM Channel 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-81.69049,38.37315]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-81.69049,"DECIMAL_LATITUDE":38.373149999999995}},{"type":"Feature","id":44954,"geometry":{"type":"Point","coordinates":[-89.96377999999999,29.674540000000036]},"properties":{"ESRI_OID":44954,"MSI_UID":44954,"ATU":8,"TITLE":"South Pass - Head Of Passes To New Orleans/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385067,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl","WATERWAY_NAME":"Head Of Passes To New Orleans","CREATE_DATE":1780318153000,"MODIFIED_DATE":1780318435000,"BEGIN_DATE":1780272000000,"END_DATE":1785715199000,"DESCRIPTION":"Mississippi River - Dock Repairs and Dive Operations --- From: 2026-06-01 To: 2026-08-01 --- Emergency dock repairs requiring dive operations and scaffolding work will be conducted underneath the wharf at the CHS Grain Terminal, RDB, Mile 61.2, AHOP.  There will be two dive barges and a crane barge at the facility.  Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution.  POC: (504) 419-5494\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-89.96378,29.67454]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-89.96378,"DECIMAL_LATITUDE":29.67454}},{"type":"Feature","id":44981,"geometry":{"type":"Point","coordinates":[-90.02706999999998,29.965280000000064]},"properties":{"ESRI_OID":44981,"MSI_UID":44981,"ATU":8,"TITLE":"Head Of Passes To New Orleans - Inner Harbor Navigation Canal/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385063,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:secneworlexcecozon:secneworltersea:secneworlsublanact:soupas:heaofpastoneworl:innharnavcan","WATERWAY_NAME":"Inner Harbor Navigation Canal","CREATE_DATE":1780323469000,"MODIFIED_DATE":1780323962000,"BEGIN_DATE":1780272000000,"END_DATE":1798761599000,"DESCRIPTION":"Inner Harbor Navigation Canal - GIWW - Lock Schedule --- Reported: 2026-05-30 --- The Inner Harbor Navigation Canal Lock will be closed to marine traffic from 11:00 p.m. to 6:00 a.m., daily, and open to all vessel traffic from 6:00 a.m. to 11:00 p.m., each day.  Mariners should plan accordingly and can monitor lock status updates at the following website: https://www.mvn.usace.army.mil/LockStatus/, or by calling the Lockmaster at (504) 945-2157.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-90.02707,29.96528]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-90.02707,"DECIMAL_LATITUDE":29.96528}},{"type":"Feature","id":45067,"geometry":{"type":"Point","coordinates":[-70.56601999999998,41.32555000000008]},"properties":{"ESRI_OID":45067,"MSI_UID":45067,"ATU":1,"TITLE":"Sector Southeastern New England, Territorial Sea - Sector Southeastern New England, Submerged Lands Act (SLA)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116987495,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secsounewengexcecozon:secsounewengtersea:secsounewengsublanact","WATERWAY_NAME":"Sector Southeastern New England, Submerged Lands Act (SLA)","CREATE_DATE":1780396159000,"MODIFIED_DATE":1780396163000,"BEGIN_DATE":1780358400000,"END_DATE":1785542399000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-15 To: 2026-07-31\n\nLocation:\n41-19-37.668N/070-33-41.148W\n\nAGM Marine Contractors submitted a Local Notice to Mariners (LNM) Information Form to the U.S. Coast Guard First District regarding upcoming construction work on the WHOI MVCO Tower. The project will take place 1.5 miles south of Martha’s Vineyard, Massachusetts, in the Atlantic Ocean, with coordinates 41°19'37.69\" N, 70°33'41.05\" W, and referenced on chart US5MA1AS. The work is scheduled from June 15 to July 31, 2026, operating 24 hours a day, seven days a week. The North Star Voyager Jack Up Barge will be on scene, and vessels can communicate via radio frequency 66, with a 15-minute notice required for passing arrangements to avoid navigation impediments.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.56602,41.32555]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.56602,"DECIMAL_LATITUDE":41.32555}},{"type":"Feature","id":45091,"geometry":{"type":"Point","coordinates":[-66.98453999999998,44.91548000000006]},"properties":{"ESRI_OID":45091,"MSI_UID":45091,"ATU":1,"TITLE":"Sector Northern New England, Submerged Lands Act (SLA) - New Brunswick Grand Manan Channel Northern Part/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381823,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnornewengexcecozon:secnornewengtersea:secnornewengsublanact:newbrugramanchanorpar","WATERWAY_NAME":"New Brunswick Grand Manan Channel Northern Part","CREATE_DATE":1780402932000,"MODIFIED_DATE":1780407531000,"BEGIN_DATE":1780358400000,"END_DATE":1811980799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-15 To: 2027-06-02\n\nLocation:\n44-54-55.728N/066-59-04.344W\n\nFuller Marine Services, Inc. submitted a Local Notice to Mariners (LNM) Information Form to the U.S. Coast Guard First District regarding the planned replacement of the Clark Ledge Daybeacon (LLNR 925) in the St. Croix River, Maine. The project involves replacing the aid in its entirety, with operations scheduled to begin on June 15, 2026, and continue until completion. Work will be conducted daily from 7:00 AM to 6:00 PM, utilizing the vessels Enzo Charles and Mary Louisa II. Vessels on-site will monitor VHF-FM Channels 16 and 13 for navigational safety and passing arrangements, with secondary contact available on Channel 09 or USCG working channel 22A. The crew will maintain a clear fairway for all traffic and will reposition within 30 minutes if additional channel breadth is required, subject to weather and safety conditions.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-66.98454,44.91548]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-66.98454,"DECIMAL_LATITUDE":44.915479999999995}},{"type":"Feature","id":45095,"geometry":{"type":"Point","coordinates":[-68.08548999999994,44.38838000000004]},"properties":{"ESRI_OID":45095,"MSI_UID":45095,"ATU":1,"TITLE":"Frenchman Bay - Winter Harbor/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381735,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnornewengexcecozon:secnornewengtersea:secnornewengsublanact:frebay:winhar","WATERWAY_NAME":"Winter Harbor","CREATE_DATE":1780403582000,"MODIFIED_DATE":1780407710000,"BEGIN_DATE":1780358400000,"END_DATE":1811980799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-15 To: 2027-06-02\n\nLocation:\n44-23-18.168N/068-05-07.764W\n\nFuller Marine Services, Inc. submitted a Local Notice to Mariners (LNM) Information Form to the U.S. Coast Guard First District for the full replacement of Guptill Ledge Daybeacon 6 (LLNR 1945) in Schoodic Harbor, Maine. The project will  replace the aid entirely, beginning June 15, 2026, and continuing until completion. Operations will run daily from 7:00 AM to 6:00 PM, utilizing the vessels Enzo Charles and Mary Louisa II. Vessels will monitor VHF-FM Channels 16 and 13 for navigational safety and passing arrangements, with secondary contact available on Channel 09 or USCG working channel 22A. The crew will maintain a clear fairway for all traffic and will reposition within 30 minutes if additional channel breadth is required, subject to weather and safety conditions.\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-68.08549,44.38838]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-68.08549,"DECIMAL_LATITUDE":44.38838}},{"type":"Feature","id":45098,"geometry":{"type":"Point","coordinates":[-69.57562999999993,43.955820000000074]},"properties":{"ESRI_OID":45098,"MSI_UID":45098,"ATU":1,"TITLE":"Sector Northern New England, Submerged Lands Act (SLA) - Damariscotta River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381685,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnornewengexcecozon:secnornewengtersea:secnornewengsublanact:damriv","WATERWAY_NAME":"Damariscotta River","CREATE_DATE":1780403903000,"MODIFIED_DATE":1780407803000,"BEGIN_DATE":1780358400000,"END_DATE":1811980799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-15 To: 2027-06-02\n\nLocation:\n43-57-20.952N/069-34-32.268W\n\nFuller Marine Services, Inc. submitted a Local Notice to Mariners (LNM) Information Form to the U.S. Coast Guard First District for the full removal and replacement of Merry Island Daybeacon 15 (LLNR 5365) in the Damariscotta River, Maine. The project, The project will  replace the aid entirely, is scheduled to begin on June 15, 2026, and will continue until completion, with daily operations from 7:00 AM to 6:00 PM using the vessels Enzo Charles and Mary Louisa II. Vessels will monitor VHF-FM Channels 16 and 13 for navigational safety and passing arrangements, with secondary contact available on Channel 09 or USCG working channel 22A. The crew will maintain a clear fairway for all traffic and will reposition within 30 minutes if additional channel breadth is required, subject to weather and safety conditions. \n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-69.57563,43.95582]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-69.57563,"DECIMAL_LATITUDE":43.955819999999996}},{"type":"Feature","id":45171,"geometry":{"type":"Point","coordinates":[-70.37377999999995,43.460000000000036]},"properties":{"ESRI_OID":45171,"MSI_UID":45171,"ATU":1,"TITLE":"Sector Northern New England, Submerged Lands Act (SLA) - Saco River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116381806,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secnornewengexcecozon:secnornewengtersea:secnornewengsublanact:sacriv","WATERWAY_NAME":"Saco River","CREATE_DATE":1780486176000,"MODIFIED_DATE":1780486213000,"BEGIN_DATE":1780444800000,"END_DATE":1819756799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-03 To: 2027-08-31\n\nLocation:\n43-27-36.000N/070-22-25.608W\n\nNorth Jetty Spur Construction project by Mohawk Northeast, scheduled to take place in Saco, Maine in position 43.464725° N, 70.373789° W, from June 2026 through August 2027. The project involves construction activities at Saco Bay and Saco River, with a haul route extending to Portland Harbor. Operations will occur Monday through Friday, with ten-hour workdays. The onsite equipment will include two tug boats, one push boat, one work skiff, two work barges, and two material barges. Vessel communications will be managed via VHF channels 13 and 16, with security calls made prior to vessel movements to ensure safe navigation and coordination with passing vessels. ","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.37378,43.46]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.37378,"DECIMAL_LATITUDE":43.46}},{"type":"Feature","id":45195,"geometry":{"type":"Point","coordinates":[-70.98582999999996,42.28083000000004]},"properties":{"ESRI_OID":45195,"MSI_UID":45195,"ATU":1,"TITLE":"Western Way - Wollaston Channel/General/Marine Construction (Excluding Bridges)/Survey Operations","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Survey Operations","WTRW_UID":100116381945,"MRN":"urn:mrn:iala:wwy:us:navIV:dis1:secbosexcecozon:secbostersea:secbossublanact:nanroasouapp:pedislcha:wesway:wolcha","WATERWAY_NAME":"Wollaston Channel","CREATE_DATE":1780488457000,"MODIFIED_DATE":1780488464000,"BEGIN_DATE":1780444800000,"END_DATE":1790812799000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Survey Operations\n\nFrom: 2026-06-03 To: 2026-09-30\n\nLocation:\n42-16-50.988N/070-59-08.988W\n\n•\tAutonomous surface vessel (ASV) by Sedna Robotics in Quincy Bay, Massachusetts, from June 8 to September 30, 2026. The ASV, named \"Warden,\" is a 7-foot vessel with a yellow hull, marked \"Uncrewed / Research Vessel,\" and transmits as \"Uncrewed\" on AIS. Operations are scheduled to run 24 hours a day, seven days a week at coordinates 42º 16' 51\"N, 70° 59' 9\"W. It will operate within a 50-foot radius, station-keeping, and may transit at 2 knots during daytime hours. The vessel will display a flashing amber beacon at night and can be repositioned within 30 minutes upon request via the Sedna operations line, which is available 24/7 and displayed on the vessel. Launch and recovery will occur at Perry Beach, Quincy, MA. Operations are scheduled to run 24 hours a day, seven days a week at coordinates 42º 16' 51\"N, 70° 59' 9\"W autonomous surface vessel (ASV) by Sedna Robotics in Quincy Bay, Massachusetts, from June 8 to September 30, 2026. The ASV, named \"Warden,\" is a 7-foot vessel with a yellow hull, marked \"Uncrewed / Research Vessel,\" and transmits as \"Uncrewed\" on AIS. It will operate within a 50-foot radius, station-keeping, and may transit at 2 knots during daytime hours. The vessel will display a flashing amber beacon at night and can be repositioned within 30 minutes upon request via the Sedna operations line, which is available 24/7 and displayed on the vessel. Launch and recovery will occur at Perry Beach, Quincy, MA. \n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-70.98583,42.28083]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-70.98582999999999,"DECIMAL_LATITUDE":42.280829999999995}},{"type":"Feature","id":45201,"geometry":{"type":"Point","coordinates":[-95.14113999999995,29.734560000000045]},"properties":{"ESRI_OID":45201,"MSI_UID":45201,"ATU":8,"TITLE":"Galveston Bay Entrance Channel - Houston Ship Channel/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385131,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:galbayentcha:houshicha","WATERWAY_NAME":"Houston Ship Channel","CREATE_DATE":1780489039000,"MODIFIED_DATE":1780489197000,"BEGIN_DATE":1780444800000,"END_DATE":1794700799000,"DESCRIPTION":"Houston Ship Channel - Dock Construction --- From: 2026-06-03 To: 2026-11-13 --- Construction for a new barge dock will take place along the Houston Ship Channel near Houston Ship Channel Lighted Buoy 145 (LLNR-25785.01).  Operations will be conducted 10-hours a day, 5-days a week.  On-scene vessels will include two 150 ft x 60 ft crane barges, two material barges, four towing vessels, and a work raft.  Mariners are urged to transit the area with caution.  VHF-FM Channel: 16","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-95.14114,29.73456]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-95.14114,"DECIMAL_LATITUDE":29.73456}},{"type":"Feature","id":45254,"geometry":{"type":"Point","coordinates":[-81.04113999999998,30.997290000000078]},"properties":{"ESRI_OID":45254,"MSI_UID":45254,"ATU":7,"TITLE":"District 7, Oceanic boundary to EEZ - Sector Charleston, Exclusive Economic Zone (EEZ)/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116384309,"MRN":"urn:mrn:iala:wwy:us:navIV:dis7:secchaexcecozon","WATERWAY_NAME":"Sector Charleston, Exclusive Economic Zone (EEZ)","CREATE_DATE":1780503167000,"MODIFIED_DATE":1780503317000,"BEGIN_DATE":1780444800000,"END_DATE":1796083199000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-03\n45254\n\nLocation:\n30-59-50.244N/081-02-28.104W\n\nThe Georgia Department of Natural Resources (GADNR) intends to deploy the tug SEGA at SFC Reef between June 15 and July 15, 2026. The SEGA is 64.5' x 24.5' x 27' and is expected to land on her keel for a max height of 27’. SFC Reef is approximately 60’ deep at the proposed location and has an approved clearance of –28’ MLW. Material placements will not exceed this site’s approved clearance. All deployments are conducted in favorable weather conditions and during daylight hours. The proposed material deployment location is at 30.99729°N, 81.04114°W (30°59.837'N 81°2.468'W). \nThe Offshore Artificial Reef Program covers 111 square miles, consists of 20 offshore reefs, eight decommissioned Department of Defense Tactical Air Crew Training System Towers, and three beach reefs. This Program was established to develop long-term fisheries habitat to increase the availability of quality recreational fishing and diving sites in the Atlantic Ocean near Georgia. These artificial reefs provide habitat for both fishes and other marine life; act as attachment points for fouling and sessile organisms in search of hard substrates such as anemones, octocorals, sponges, algae, and others; and provide habitat for organisms to forage, shelter, and evade predators.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-81.04114,30.99729]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-81.04114,"DECIMAL_LATITUDE":30.99729}},{"type":"Feature","id":45432,"geometry":{"type":"Point","coordinates":[-76.33716999999996,38.52355000000006]},"properties":{"ESRI_OID":45432,"MSI_UID":45432,"ATU":5,"TITLE":"Chesapeake Channel - Little Choptank River/General/Marine Construction (Excluding Bridges)/Dredging","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Dredging","WTRW_UID":100116382449,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secvirexcecozon:secvirtersea:secvirsublanact:checha:litchoriv","WATERWAY_NAME":"Little Choptank River","CREATE_DATE":1780598131000,"MODIFIED_DATE":1780598142000,"BEGIN_DATE":1780531200000,"END_DATE":1789343999000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Dredging\n\nFrom: 2026-06-04 To: 2026-09-13\n\nLocation:\n38-31-59.900N/076-20-51.130W\n\nCottrell Contracting Corporation of Chesapeake, Virginia advises that the Dredge Lexington will be conducting dredging operations on the Chesapeake Bay in the vicinity of James Island and the Little Choptank River in Dorchester County, MD. Dredging operations will occur within a 3,000' radius of coordinates 38 31 59.9 N 076 20 51.13 W. Danger markers have been placed around the worksite and all mariners are requested to remain outside of the work area. Dredging activities are expected to begin on June 12, 2026 and continue through September 12, 2026.\nTransiting mariners can hail the dredge on VHF channels 16 &13. For emergencies the dredge can be reached at (757) 635-2578. A map has been provided below to show the area of work.\nAll mariners are requested to stay clear of the dredge, pipelines, barge, derricks and operating wires about the dredge. All operators should be aware that the dredge and pontoon lines are held in place by cables, which are attached to anchors some distance from the dredge and pontoons. Buoys are attached to the anchors so that they may be moved as the dredge moves. Submerged lines should be avoided. Mariners are requested to exercise extreme caution when approaching, passing, and leaving the dredging plant. Remain a safe distance away from the dredge, booster, buoys, cables, pipeline, barges, derricks, wires and related equipment.\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-76.33717,38.52355]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-76.33717,"DECIMAL_LATITUDE":38.52355}},{"type":"Feature","id":45439,"geometry":{"type":"Point","coordinates":[-75.51423999999997,39.71719000000007]},"properties":{"ESRI_OID":45439,"MSI_UID":45439,"ATU":5,"TITLE":"Delaware River Main Channel - Christina River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116382801,"MRN":"urn:mrn:iala:wwy:us:navIV:dis5:secdelbayexcecozon:secdelbaytersea:secdelbaysublanact:delbay:delbaymaicha:lisran:delriv:delrivmaicha:chrriv","WATERWAY_NAME":"Christina River","CREATE_DATE":1780598990000,"MODIFIED_DATE":1780599846000,"BEGIN_DATE":1780531200000,"END_DATE":1781481599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-04 To: 2026-06-14\n\nLocation:\n39-43-01.884N/075-30-51.264W\n\nALL MARINERS BE ADVISED THE CHRISTINA RIVER CHANNEL IS GOING TO BE PARTIALLY OBSTRUCTED DUE TO A LARGE BARGE BASED DELIVERY TO THE PORT OF WILMINGTON. THE M/V MARY BENNETT AND BARGE WILL BE EXTENDED INTO THE CHRISTINA RIVER CHANNEL APPROXIMATELY 250 FEET FROM THE PORT OF WILMINGTON PIER FACE IN APPROXIMATE POSITION 39°‎ 43.276'N, 075°‎ 31.730'W. THE BARGE WILL BE ON SITE FROM APPROXIMATELY 6 PM ON JUNE 10, 2026, TO 6 PM ON JUNE 12, 2026. ALL VESSELS TRANSITING THE CHRISTINA RIVER CHANNEL ARE REQUESTED TO CONTACT THE M/V MARY BENNETT PRIOR TO TRANSITING TO MAKE PASSING ARRANGEMENTS. THE M/V MARY BENNETT CAN BE CONTACTED VIA VHF RADIO CHANNELS 13 AND 16.","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-75.51424,39.71719]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-75.51424,"DECIMAL_LATITUDE":39.717189999999995}},{"type":"Feature","id":45584,"geometry":{"type":"Point","coordinates":[-83.13872999999995,42.28624000000008]},"properties":{"ESRI_OID":45584,"MSI_UID":45584,"ATU":9,"TITLE":"WEST END OF LAKE ERIE - Detroit River/General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes","WTRW_UID":100116385968,"MRN":"urn:mrn:iala:wwy:us:navIV:dis9:stlawsea:lakont:lowniariv:niariv:lakeri:wesendoflakeri:detriv","WATERWAY_NAME":"Detroit River","CREATE_DATE":1780922883000,"MODIFIED_DATE":1780922892000,"BEGIN_DATE":1780617600000,"END_DATE":1781481599000,"DESCRIPTION":"General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes\n\nFrom: 2026-06-05 To: 2026-06-14\n\nThere will be diving operations being conducted in the vicinity of the St. Mary's Cement facility on the Rouge River during daylight hours from the 5th to the 14th of June. If you need to get in contact, there will be a support vessel on scene which could be reached via telephone at (734) 674-5991 or alternatively (734) 765-9699.\n\n\n","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-83.13873,42.28624]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-83.13873,"DECIMAL_LATITUDE":42.28624}},{"type":"Feature","id":45694,"geometry":{"type":"Point","coordinates":[-95.27492999999998,29.727360000000033]},"properties":{"ESRI_OID":45694,"MSI_UID":45694,"ATU":8,"TITLE":"Galveston Bay Entrance Channel - Houston Ship Channel/General/Marine Construction (Excluding Bridges)/Survey Operations","STATUS":"Approved","MSI_GROUP":"General","SUB_CATEGORY":"Marine Construction (Excluding Bridges)","TYPE":"Survey Operations","WTRW_UID":100116385131,"MRN":"urn:mrn:iala:wwy:us:navIV:dis8:sechouexcecozon:sechoutersea:sechousublanact:galbayentcha:houshicha","WATERWAY_NAME":"Houston Ship Channel","CREATE_DATE":1780930667000,"MODIFIED_DATE":1780932495000,"BEGIN_DATE":1780876800000,"END_DATE":1783468799000,"DESCRIPTION":"Houston Ship Channel - Survey Operation --- From: 2026-06-15 To: 2026-07-06 --- The R/V KOACH KLINE will conduct geophysical surveys in the Houston Ship Channel near Brady Island in approximate position 29-43-38.51N 095-16-29.76W.  Work will take place daily, during daylight hours.  Research vessels will be restricted in their maneuverability due to the use of side scan sonar, a sub-bottom profiler, a magnetometer, and multi beam equipment.  Mariners are urged to transit with caution and at their slowest safe speed to minimize wake in the vicinity of the survey vessels.  VHF-FM Channels: 16, POC: (709) 764-6050","COORDINATES_JSON":"{\"type\":\"Point\",\"coordinates\":[-95.27493,29.72736]}","COORDINATES_TYPE":"Point","DECIMAL_LONGITUDE":-95.27493,"DECIMAL_LATITUDE":29.727359999999997}}]}