Cape May Inlet - New Jersey Intracoastal Waterway/General/Hazards To Navigation/Shoaling Reported
New Jersey Intracoastal Waterway
General/Hazards To Navigation/Shoaling Reported
Shoaling has been observed between Little Egg Inlet Buoy 1 (LLNR 1100) and Little Egg Inlet Buoy 4 (LLNR 1115). Shoaling has encroached channel ward in between the aids. Minimal depths observed at low tide 4ft.
Location:

Sector Delaware Bay, Submerged Land Act (SLA) - Great Egg Harbor Inlet/General/Hazards To Navigation/Shoaling Reported
Great Egg Harbor Inlet
General/Hazards To Navigation/Shoaling Reported
Shoaling has been observed between Great Egg Harbor Inlet Buoy 7 (LLNR 1288) and the charted location of Buoy 9 (LLNR 1291) with a MLW depth of 4ft in the channel. See DB BNM 0062-24.

Cape May Inlet - New Jersey Intracoastal Waterway/General/Hazards To Navigation/Shoaling Reported
New Jersey Intracoastal Waterway
General/Hazards To Navigation/Shoaling Reported
Shoaling has been observed between Great Egg Harbor Inlet Buoy 7 (LLNR 1288) and the charted location of Buoy 9 (LLNR 1291) with a MLW depth of 4ft in the channel. See DB BNM 0062-24.
Location:

Indian River Inlet - Rehoboth Bay/General/Hazards To Navigation/Shoaling Reported
Rehoboth Bay
Delaware Department of Natural Resources and Environmental Control (DNREC) reports shoaling in Baker’s Channel between Baker’s Channel Lighted Buoy 1A (LLNR 2136) and Baker’s Channel Lighted Buoy 1B (LLNR 2137) as well as Baker’s Channel Lighted Buoy 5 (LLNR 2137.04) and Baker’s Channel Lighted Buoy 6 (LLNR 2137.05). DNREC has established two warning buoys worded “DANGER SHOAL” to mark the shoaling
Location:

Indian River Inlet - White Creek/General/Hazards To Navigation/Shoaling Reported
White Creek
Shoaling was observed in White Creek to 2 – 5 feet at MLW. Floating Aids to Navigation have been discontinue while fixed aids to navigation have been converted to Warning Daybeacons with “Danger Shoal” on them.

Indian River Inlet - Indian River Channel/General/Hazards To Navigation/Shoaling Reported
Indian River Channel
Extreme Shoaling has occurred in the channel on the Indian River from Indian River Channel Daybeacon 64 (LLNR 4551.23) to Indian River Channel Daybeacon 70 (LLNR 4551.23) near Millsboro, DE. This area is inaccessible at low tide and faces a severe hazard to safety. All navigation in this area should use caution as much of the channel has shoaled in with less than 1’ MLW average.

Ocean City Inlet - Isle Of Wight Bay/General/Hazards To Navigation/Shoaling Reported
Assawoman Bay
Shoaling - a USACE survey has identified shoaling on the north side of the channel across from Ocean City Inlet Lighted Buoy 11 (LLNR 4755) and ocean city inlet lighted buoy 13 (LLNR 4758), indicating a least depth of 6.6 feet at mean low water. Mariners are advised to use caution in the area.

Sector Virginia, Submerged Land Act (SLA) - Chesapeake Channel/General/Hazards To Navigation/Shoaling Reported
Chesapeake Channel
Shoaling has been reported in the Entrance Channel to Flag Harbor Yacht Haven in Calvert County, MD. The shoaling is located just outside Flag Harbor Light 1 (LLNR 7671) and Flag Harbor Entrance Light 2 (LLNR 7672). Depth of water is less than 5 Ft at MHW.

Potomac River - Upper Machodoc Creek Dahlgren Channel/General/Hazards To Navigation/Shoaling Reported
Upper Machodoc Creek Dahlgren Channel
The ACOE Survey of St. George Creek Channel dated April 2021, indicates shoaling across the entire channel. The shoaling is from 850 feet up the channel of St. George Creek West Channel Warning Light A (LL 16760) to 500 feet up the channel of St. George Creek West Channel Warning Daybeacon B (LL 16765), with a least depth of 3.1 feet MLLW.

Chesapeake Channel - Potomac River/General/Hazards To Navigation/Shoaling Reported
Upper Machodoc Creek Dahlgren Channel
U. S. Army Corps of Engineers Survey of Bonum Creek indicates shoaling, to less than 2 feet MLLW, in the channel.

Chesapeake Channel - Lynnhaven Inlet/General/Hazards To Navigation/Shoaling Reported
Lynnhaven Inlet
Army Corp of Engineer Survey has indicated shoaling between Lynnhaven Inlet Light 1L (LLNR 10130) and Lynnhaven Inlet Light 3 (LLNR 10136) on the east side of the channel extending into the channel with the Minimum depth of 6.8 feet.

Cape May To Cape Hatteras - Chesapeake Channel/General/Hazards To Navigation/Shoaling Reported
Chesapeake Channel
Shoaling has been Reported to a depth of 2-3ft at mean low water in the channel of Mattawoman Creek between Mattawoman Creek Light 1MC (LLNR 21580) and Mattawoman Creek Light 2 (LLNR 21585). Mariners are advised to transit the area with caution.

James River - Pagan River/General/Hazards To Navigation/Shoaling Reported
Pagan River

James River - Pagan River/General/Hazards To Navigation/Shoaling Reported
Pagan River
Shoaling has been located on the approach to Jones Creek outside of the Pagan River Channel between Pagan River Channel Light 13 (LLNR 11415) and Jones Creek Daybeacon 2 (LLNR 11420). Depths observed 4ft at approximately 3 hours before MLW

Sector Virginia, Submerged Land Act (SLA) - Chesapeake Channel/General/Hazards To Navigation/Shoaling Reported
Chesapeake Channel
A recent NOAA survey identified shoaling to a depth of 8 ft at MLW in Back River between Back River Channel Daybeacon 6 (LLNR 12930) and Back River Channel Light 5 (LLNR 12925).

Chesapeake Channel - Rappahannock River/General/Hazards To Navigation/Shoaling Reported
Rappahannock River
An ACOE Survey of Greenvale Creek Channel indicates shoaling, to a least depth of 1.7 feet MLLW, across the channel from approximately 250 feet North-Northeast of Greenvale Channel Warning Daybeacon A (LLNR 15305) continuing inbound for approximately 880 feet.

Portland Harbor Approach - Portland Harbor/General/Hazards To Navigation/Shoaling Reported
Portland Harbor
Shoaling has been reported in the inner harbor of Casco Bay’s federal channel. Shoaling could impede the approach to the Gulf Oil Terminal in South Portland, and significantly reduces the available channel where large passenger ships regularly maneuver on and off berths in Portland. Deep draft vessels are advised to use caution when transiting the area.

Main Channel - Canapitsit Channel/General/Hazards To Navigation/Shoaling Reported
Canapitsit Channel
Mariners are advised of shoaling in the Cuttyhunk Inner Harbor Entrance Channel. The shoaling is reported to extend across the entirety of the entrance channel with an approximate depth at mean low water of 5 feet. Mariners are urged to exercise extreme caution while transiting this area.

Georges Bank And Nantucket Shoals - Chatham Harbor Approach/General/Hazards To Navigation/Shoaling Reported
Sector Southeastern New England, Submerged Lands Act (SLA)
Shoaling has been reported in Old Harbor between buoys 6 and 8. Mariners are advised to use extreme caution while transiting the area.

Buzzards Bay Main Channel - Westport Harbor/General/Hazards To Navigation/Shoaling Reported
Westport Harbor
Westport Channel has experienced significant shoaling, with considerable narrowing of the federal channel. Aids to navigation have been relocated outside the federal channel, to mark best water. Mariners are advised that shoaling has been identified and is unpredictable outside the federal channel, affecting both commercial and recreational vessels. Mariners without local knowledge are advised to transit with extreme caution and only during plus tides. Mariners are urged to use caution while transiting the area.

Sector Boston, Submerged Land Act (SLA) - Essex Bay/General/Hazards To Navigation/Shoaling Reported
Essex Bay
Essex Bay entrance has experienced increased shoaling from Essex Bay Buoy 3 in approximate position 42-40.4N 070-42.7W to Essex Bay Buoy 3A in approximate position 42-40.3N 070-43.3W. Mariners are advised that shoaling has been identified and extends the entire width of the channel to a least depth of 2 feet mean low water (MLW). Mariners without local knowledge are advised to transit with extreme caution and only during plus tides. Essex Bay Channel Buoy 16 has been reported having increased shoaling. Mariners are urged to use caution while transiting the area.

Portsmouth To Cape Ann - Plum Island Sound/General/Hazards To Navigation/Shoaling Reported
Plum Island Sound
Shoaling exists in Plum Island Sound between Plum Island Sound Entrance buoy 4 (LLNR 9310) and Plum Island Sound Entrance buoy 6 (LLNR 9320), aids are not properly marking best water. Mariners are advised to use caution while navigating this area. All of Plum Island is particularly susceptible to shoaling, the area between 4 and 6 being the worst at the mouth of the channel. Last year the unit partnered with the harbor Master moving the aids to mark the best water. Even though the aids are in the best possible locations that water is still shallow at low tide and mariners should use caution while navigating in this area

Portsmouth To Cape Ann - Plum Island Sound/General/Hazards To Navigation/Shoaling Reported
Plum Island Sound
Newburyport Harbor and Plum Island Sound – Plum Island Sound Entrance has experienced an increase in shoaling between Plum Island Sound Entrance Buoy 6 and 8. The shoaling was observed in approx. position 42-41.365N /070-45.169W and extends 100 yards west following the channel. Mariners are advised that at MLLW depths of 3' could be seen. Mariners without local knowledge are advised to transit with extreme caution and monitor tidal stations prior to transiting.

Portsmouth To Cape Ann - Annisquam River/General/Hazards To Navigation/Shoaling Reported
Annisquam River
Severe shoaling has been reported in the Annisquam River. Annisquam River channel buoy 24 (LLNR 9690) has been relocated due to recent shoaling in the area to mark best water. Mariners should proceed with caution while transiting the area

Nahant Harbor - Lynn Harbor/General/Hazards To Navigation/Shoaling Reported
Lynn Harbor

Approaches To New York Nantucket Shoals To Five Fathom Bank - West Passage/General/Hazards To Navigation/Hazards
West Passage

Approaches To New York Nantucket Shoals To Five Fathom Bank/General/Hazards To Navigation/Hazards
Sector Southeastern New England, Exclusive Economic Zone (EEZ)
NY-NJ-ATLANTIC OCEAN-NEW YORK BIGHT-Updated 3/4/2024
Two unexploded ordnances have been located via survey approximately 25 miles east of Sandy Hook, NJ in positions, 40-22-15.667N, 073-33-49.519W and 40-20-37.821N, 073-31-11.674W in approximately depth of 26 meters (see chartlet). Mariners are urged to avoid the ordnance and transit the area with caution.

Cape May To Cape Hatteras - Chesapeake Channel/General/Hazards To Navigation/Shoaling Reported

Tangier Sound - Tangier Island East Channel/General/Hazards To Navigation/Shoaling Reported
Tangier Island East Channel
There has been a report of shoaling in the Tangier Island East Channel within the channel boundaries between Tangier Island East Daybeacon 6 (LLNR 22765) and Tangier Island East Channel Light 7 (LLNR 22770) to a depth of three feet.

Pocomoke Sound - Deep Creek/General/Hazards To Navigation/Shoaling Reported
Deep Creek
U.S. Army Corps Survey on 19 Sep 19 indicated a least depth of 1.2' MLW within the channel limits. From Deep Creek Channel Daybeacon 12 (LLNR 22225) to Deep Creek Channel Daybeacon 14 (LLNR 22230) least depth of 6.3' in center of channel, 5.8' on green side of channel, and 4.5' on red side of channel. From Deep Creek Channel Daybeacon 14 to Deep Creek Channel Light 15 (LLNR 22235) least depth of 5.0' In center of channel, 3.0' on green side of channel, 3.8' on red side of Channel. From Deep Creek Channel Light 15 to Deep Creek Channel Daybeacon 16 (LLNR 22240) least depth of 4.4' in center of channel, 3.2' on green side of channel, and 4.1' on red side of channel. From Deep Creek Channel Daybeacon 16 to Deep Creek Channel Daybeacon 17 (LLNR 22245) least depth of 3.6' in center of Channel, 0.2' on green side of channel, and 2.6' on red side of channel.
Chart 12207

Nahant Harbor - Saugus River Approach Channel/General/Hazards To Navigation/Shoaling Reported
Saugus River Approach Channel
MA-SALEM AND LYNN HARBORS (Chart 13275)-SAUGUS RIVER APPROACH CHANNEL
Severe shoaling has been reported in the Saugus River in the vicinity of Saugus River Approach Channel Lighted Buoy 5 (LLNR 10655). Mariners should proceed with caution while transiting the area.

Beverly Channel - Bass River/General/Hazards To Navigation/Shoaling Reported
Bass River
MA-SALEM AND LYNN HARBORS (CHART 13275)-BASS RIVER
Severe shoaling has been reported between Bass River Channel Buoy 2 (LLNR 10325)-Bass River Channel Buoy 9 (LLNR 10355) and there is a severe decrease in the channel’s width. Mariners should proceed with caution while transiting the area.

Georges Bank And Nantucket Shoals - New Inlet/General/Hazards To Navigation/Shoaling Reported
New Inlet
MA-MARSHFIELD-NEW INLET
Shoaling has been reported from the North River junction buoy towards the #2 buoy South River. This area is reported as approx. 3.0 feet during the low tide. Mariners should use caution while transiting the area, especially during astronomical low tides.

Plymouth Bay - The Nummet Channel/General/Hazards To Navigation/Shoaling Reported
The Nummet Channel
MA-NUMMET CHANNEL (REVISED)
The Coast Guard has received a report of shoaling in the vicinity of The Nummet Channel Buoy 7 (LLNR 12760). Mariners are advised to proceed with caution when transiting the area.

Georges Bank And Nantucket Shoals - Barnstable Harbor/General/Hazards To Navigation/Shoaling Reported
Barnstable Harbor
MA – BARNSTABLE HARBOR – SHOALING
Mariners be advised that shoaling exists in the Barnstable Harbor Entrance channel. Shoaling extends approximately 200 feet into the channel north of Barnstable Harbor Entrance Lighted Buoy 6, in the vicinity of position 41-.43.5 N, 070-16.3W. Water depth is estimated to be 2 feet at low tide in this area. All mariners are requested to use caution while transiting the area.

Georges Bank And Nantucket Shoals - Pollock Rip Channel/General/Hazards To Navigation/Shoaling Reported
Sector Southeastern New England, Submerged Lands Act (SLA)
MA-NANTUCKET SOUND AND APPROACHES (Chart 13237)-POLLOCK RIP CHANNEL
The entrance to Pollock Rip Channel from the East continues to have SEVERE shoaling East of Pollock Rip Lighted Buoy 4 (LLNR 13535). Mariners should not attempt to transit the area without local knowledge of the shoals and use the channel at their own risk. If transiting the channel, Mariners are urged to transit at their slowest safe speed and proceed with extreme caution.

Buzzards Bay Main Channel - Westport Harbor/General/Hazards To Navigation/Shoaling Reported
Westport Harbor
MA-MARTHA'S VINEYARD TO BLOCK ISLAND (Chart 13218)-WESTPORT HARBOR
Shoaling exists in Westport Harbor in the vicinity of Westport Harbor Channel LB 14 (LLNR 17490) and Westport Harbor Channel Buoy 17 (LLNR 17505). There are other areas of shoaling throughout the Westport Harbor Channel reducing the available depth of water. Mariners are advised to use caution while navigating this area

Sector Southeastern New England, Submerged Lands Act (SLA) - Buzzards Bay Main Channel/General/Hazards To Navigation/Shoaling Reported
Buzzards Bay Main Channel
MA – CUTTYHUNK HARBOR – ENTRY CHANNEL
Mariners are advised that the navigable width of the entry channel into Cuttyhunk Harbor has decreased to approximately 15 feet wide. This may cause navigability issues and restrict movement for two-way traffic. Mariners are urged to maintain a proper lookout and use extreme caution while transiting the area. You may contact the local harbormaster by phone at (508) 990-7578.

Point Judith Harbor Of Refuge - Point Judith Pond/General/Hazards To Navigation/Shoaling Reported
Point Judith Pond
RI-BLOCK ISLAND SOUND AND APPROACHES (CHART 13205)-POINT JUDITH POND
Shoaling has been observed within the channel to a least depth of 4.0 feet MLW in approximate position 41 22'48"N, 071 33'55"W between Point Judith Pond Channel Buoy 2 (LLNR 19555) and Point Judith Pond Channel Buoy 4 (LLNR 19560). Shoal is encroaching from the East side of the channel and protruding west. Shoaling has also been identified in several other areas north of buoy 2, below charted depth, extending into the upper pond. Mariners without local knowledge are advised to transit with extreme caution, paying particular attention to tidal range. Mariners are urged to use caution while transiting the area.

Approaches To New York Nantucket Shoals To Five Fathom Bank - Block Island/General/Hazards To Navigation/Shoaling Reported
Sector Southeastern New England, Territorial Sea
RI-BLOCK ISLAND-OLD HARBOR
Shoaling has been reported in the entrance to Old Harbor, Block Island. Mariners are advised to proceed with caution while transiting the area.

Greenwich Bay - Warwick Cove/General/Hazards To Navigation/Shoaling Reported
Warwick Cove
RI-NARRAGANSETT BAY (CHART 13221)-GREENWICH BAY-WARWICK COVE
Shoaling has been observed within the federal navigation channel to a least depth of 3 FT MLW. Shoaling is encroaching from the west and has impacted the western part of the channel, reducing the authorized project width from 150 feet to approx. 90 feet between Warwick Cove Buoy 3 (LLNR 19360) and Warwick Cove Buoy 7 (LLNR 19375).

Mount Hope Bay - Kickamuit River/General/Hazards To Navigation/Shoaling Reported
Kickamuit River
RI-NARRAGANSETT BAT (CHART 13221)-MOUNT HOPE BAY-KICKAMUIT RIVER
Shoaling has been reported in the Kickamuit River in the vicinity of Kickamuit River Buoy 2. Mariners are advised to proceed with caution while transiting the area.

Approaches To New York Nantucket Shoals To Five Fathom Bank - Little Narragansett Bay/General/Hazards To Navigation/Shoaling Reported
Little Narragansett Bay
CT-STONINGTON-SANDY POINT-Update 5/29/2023
Shoaling has been reported in the vicinity of the western tip of Sandy Point Island, Stonington, CT in vicinity of little Narragansett Bay Entrance Lighted Buoy 5 (LLNR 20210) and Buoy 7 (LLNR 20215). Stonington Police Department’s Marine Unit have observed significant narrowing of the channel, which may impact vessels transiting the area. Mariners should exercise extreme caution when navigating the channel.

Approaches To New York Nantucket Shoals To Five Fathom Bank - Jones Inlet/General/Hazards To Navigation/Shoaling Reported
Jones Inlet
NY- JONES BEACH-Update 5/15/2024
Shoaling has been identified in between Jones Beach Inlet Lighted Buoy 3 (LLNR 30920) and Jones Beach Inlet Lighted Buoy 6 (LLNR 30935). Mariners are urged to maintain a sharp lookout and transit the area with extreme caution, when navigating this area.

Jones Inlet/General/Hazards To Navigation/Shoaling Reported
Jones Inlet
NY-EAST ROCKAWAY INLET-SLOOP CHANNEL
Shoaling has been identified in East Rockaway Inlet between buoys 3 and buoy 9. Mariners are urged to maintain a sharp lookout and transit the area with extreme caution, when navigating this area.

Moriches Bay - Narrows Bay/General/Hazards To Navigation/Shoaling Reported
Narrows Bay
NY-SHINNECOCK BAY-NARROWS BAY
Shoaling has been identified in East Rockaway Inlet in the area between buoys Narrows Bay Lighted Buoy 6 and Narrows Bay Buoy 7. Mariners are urged to maintain a sharp lookout and transit the area with extreme caution.

Approaches To New York Nantucket Shoals To Five Fathom Bank - Fire Island Inlet/General/Hazards To Navigation/Shoaling Reported
Fire Island Inlet

Main Channel - Hudson River/General/Hazards To Navigation/Shoaling Reported
Hudson River
NY-HUDSON RIVER-CATSKILL CREEK-ESOPUS CREEK-ROUNDOUT CREEK
Significant shoaling has been reported at the mouth of Catskill Creek, that may impact commercial traffic, along the southern portion of the channel. In Esopus Creek, shoaling has occurred faster than anticipated at the mouth of the creek when passing between Saugerties Lighthouse and Hudson River Lighted Buoy 93. In Roundout Creek, there is shoaling at the mouth of the creek. Mariners should exercise caution when navigating these areas.

Raritan Bay - Great Kills Harbor/General/Hazards To Navigation/Shoaling Reported
Great Kills Harbor
NY-GREAT KILLS HARBOR
Shoaling has been reported in in the vicinity of Great Kills Harbor, between buoys 6 and 8. Mariners are advised to proceed with caution while transiting the area.

Block Island Sound And Gardiners Bay - Gardiners Bay South Entrance/General/Hazards To Navigation/Shoaling Reported
Gardiners Bay South Entrance
NY-BLOCK ISLAND SOUND AND GARDINERS BAY-GARDINERS BAY SOUTH ENRANCE-ACABONACK HARBOR
Mariners are advised that dangerous shoaling conditions exist in Acabonack Harbor and vicinity which cause dangerous conditions when transiting the channel. Acabonack Harbor Buoys 1-4 (Private aids have been temporarily discontinued until the harbor is dredged. Mariners should exercise extreme caution when navigating the channel.

Great South Bay - North Side/General/Hazards To Navigation/Shoaling Reported
North Side
NY-SAYVILLE-BROWNS CREEK
Mariners be advised, dangerous shoaling conditions exist east of Browns Creek and vicinity which cause dangerous conditions when transiting the channel. Mariners should exercise extreme caution when navigating the channel.

Rockaway Inlet - Sheepshead Bay/General/Hazards To Navigation/Shoaling Reported
Sheepshead Bay

North Channel - The Raunt Channel/General/Hazards To Navigation/Shoaling Reported
The Raunt Channel
NY-RAUNT CHANNEL (Booklet Chart 12350 JAMAICA BAY
Recent surveys have shown significant shoaling in the Raunt Channel. Shoaling exists in the vicinity of Buoy 6, in approximate position 40-36.17N 073-50.47W. Depths of less than 5 feet in the middle of the channel. Navigation of the area requires extreme caution due to the encroaching nature of the shoal.

Shelter Island Sound South Channel - Little Peconic Bay/General/Hazards To Navigation/Shoaling Reported
Little Peconic Bay
NY-LONG ISLAND SOUND (Eastern Part) (Chart 12354)-SOUTH SIDE-MATTITUCK INLET
Shoaling has been reported in the Mattituck Inlet. Mariners are advised to proceed with caution while transiting the area.

Quantuck Canal - Moriches Bay/General/Hazards To Navigation/Shoaling Reported
Moriches Bay
NY-SHINNECOCK BAY TO EAST ROCKAWAY INLET (Chart 12352)-MORICHES BAY-Update 2/8/22
Severe shoaling is present in Moriches Bay along the Long Island Intracoastal Waterway in the vicinity of Moriches Bay Buoys 21, 24, 26, 27, 28, and 29 extending the entire width of the channel at nearly all tide levels. The area from Buoys 24 to 29 is only navigable at the operator’s risk. The most severe area of shoaling can be found between buoys 26 and 28 and is less than half the charted channel depth in some areas. Mariners should be aware that the Aids to Navigation in these areas are unreliable due to shoaling and mariners are strongly advised to seek alternate routes. Moriches Bay dredging has been completed.
Shoaling has been reported in Moriches Bay along the Long Island Intercoastal Waterway in the vicinity of Moriches Bay Buoy 17, 18, 21, 26, 27, 28 and 29 extending the entire width of the channel and at any tide level. The most severe area of shoaling can be found between buoys 26 and 27 and is less than 3 ft. Shoaling is also reported in Moriches Inlet in the vicinity of Moriches Inlet East Cut Buoys 3E and 5E. Mariners should be aware that the Aids to Navigation in these areas have been deemed unreliable due to shoaling and mariners are advised to seek alternate routes. If transiting these areas, do so only at high tide and proceed slowly and with extreme caution. In addition, shoaling exists west of Moriches Bay Buoy 23 and East of Moriches Bay Buoy 27.

Shinnecock Inlet - Shinnecock Bay/General/Hazards To Navigation/Shoaling Reported
Shinnecock Bay
NY-SHINNECOCK BAY TO EAST ROCKAWAY INLET-SLOOP CHANNEL
Shoaling has been reported in the vicinity of Sloop Channel Beacon 21 (LLNR - 31100). All mariners are requested to use caution when transiting the area.

Long Island Sound Western Part - Milton Harbor/General/Hazards To Navigation/Shoaling Reported
Milton Harbor
NY-LONG ISLAND SOUND –MILTON HARBOR
Severe Shoaling has been reported in Milton Harbor. Mariners are advised to proceed with caution while transiting the area.

Raritan River Cutoff Channel - Arthur Kill/General/Hazards To Navigation/Shoaling Reported
Arthur Kill
NJ - ARTHUR KILL – TREMLEY POINT REACH
Shoaling has been identified in the Arthur Kill, between Tremley Point Reach and Rahway River on the New Jersey side in the area between buoys Channel Lighted Buoy 34 and Channel Lighted Buoy 32. Mariners are urged to maintain a sharp lookout and transit the area with extreme caution.

Shrewsbury River - Navesink River/General/Hazards To Navigation/Shoaling Reported
Navesink River
NJ-NAVESINK RIVER
Recent surveys have shown significant shoaling in the Navesink River. Shoaling exists across the entire reach beginning at the entrance to the Navesink River to Navesink River Buoy 24. Least depths of 2.3 feet to 5.8 feet extending into channel and throughout the waterway. Navigation of the area requires extreme caution due to the encroaching nature of the shoal.

Raritan Bay - Shrewsbury River/General/Hazards To Navigation/Shoaling Reported
Shrewsbury River
NJ-SHREWSBURY RIVER
Shoaling has been reported in the vicinity of Shrewsbury River Channel Lighted Buoy 5 (LLNR - 35755). All mariners are requested to use caution when transiting the area.

Cape Fear River - Cape Fear River Little River/General/Hazards To Navigation/Shoaling Reported
Cape Fear River Little River
The Coast Guard has temporarily discontinued Lockwoods Folly Inlet Buoy 1 (LLNR 31010) through Lockwoods Folly Inlet Buoy 8 (LLNR 31040) to due shoaling and creating a misleading signal. Inlet will be reviewed when dredge operations is completed, ACOE survey is conducted, and safe navigable water depths are identified. See Sector North Carolina MSIB 015-24.
MSI # 599.

New River - New River Cape Fear River/General/Hazards To Navigation/Shoaling Reported
New River Cape Fear River
The shoal that is adjacent to the red side of the channel between New River – Cape Fear River Daybeacon 170 (LLNR 39860) and New River - Cape Fear River Light 168 (LLNR 39857) has encroached to the edge of the channel. Depths of 4-5ft at MLW have been observed.

Bogue Sound/General/Hazards To Navigation/Shoaling Reported
Bogue Sound
Shoaling has been reported IAW the most recent ACOE survey dated 26 OCT 2020 IVO Causeway Channel Buoy 5A (LLNR 38731) and Causeway Channel Buoy 6A (LLNR 38736). Reported depths of 4 feet MLW encroaching from east side of channel.

Pamlico River - Pungo River/General/Hazards To Navigation/Shoaling Reported
Pungo River
Mariners are advised of shoaling in vicinity of Wright Creek Daybeacon 4 (LLNR 32870) off the Pungo River

Sector North Carolina, Submerged Lands Act (SLA) - Hatteras Inlet/General/Hazards To Navigation/Shoaling Reported
Hatteras Inlet
Shoaling exists in various locations throughout Hatteras Inlet Channel to a depth of 2 feet at mean low water. Shoaling continues to encroach the channel near Hatteras Inlet Channel Lighted Buoy 12A (LLNR28732.1), and Hatteras Inlet Channel Buoy 15 (LLNR 28736). Depths of less than 4 feet MLW have been reported between Hatteras Inlet Channel Buoy 18 (LLNR 28760) and Hatteras Channel Lighted Buoy 19 (LLNR 28760). Some aids to navigation in the inlet may be unreliable.

Puerto Del Rey Marina/General/Hazards To Navigation/Hazards
Puerto Del Rey Marina
The U.S. NAVY is advising all mariners to refrain from entering the following area in Ceiba, Puerto Rico: the waters surrounding Isla Piñeros.
Mariners are advised to stay away from this danger zone until further notice, as it contains (UXO) Unexploded Ordnance. The U.S. Coast Guard may be contacted via VHF-FM Channel 16 or via landline at (787) 289-2041. For more information, contact Mrs. Maria Danois at (757) 412-7843 or email: maria.m.danois.civ@us.navy.mil.

Isla De Vieques/General/Hazards To Navigation/Hazards
Isla De Vieques
The U.S. NAVY is advising all mariners to refrain from entering the following areas in Vieques, Puerto Rico: Northeast from Puerto Diablo to Punta Este and on the Southeast on Bahia Salinas Del Sur. Mariners are advised to stay away from this danger zone until further notice, as it contains (UXO) Unexploded Ordnance. The U.S. Coast Guard may be contacted via VHF-FM Channel 16 or via landline at (787) 289-2041. For more information, contact Mrs. Maria Danois at: (757) 412-7843 or email: maria.m.danois.civ@us.navy.mil.

Approaches To New York Nantucket Shoals To Five Fathom Bank/General/Hazards To Navigation/Obstructions
Sector Southeastern New England, Exclusive Economic Zone (EEZ)
General/Hazards To Navigation/Obstructions
NY-23 MILES SOUTHEAST OF SHINNECOCK INLET
Stony Brook University will be deploying a bottom lander science instrument for year-round data collection, 23 miles southeast of Shinnecock Inlet in position 40-34-06.7N, 072-06-45.3W, from May 22, 2024, to November 1, 2025, at a depth of 177 feet. The lander is approximately 1m x 2m x 2/3 m (W x L x Height off bottom). Landers were deployed near known wrecks to minimize risk to trawlers (and the instrument). Mariners are urged avoid anchoring in this area.

Sector Delaware Bay, Submerged Land Act (SLA) - Barnegat Inlet/General/Hazards To Navigation/Shoaling Reported
Barnegat Inlet
U.S. Coast Guard Sector Delaware Bay is notifying mariners of extreme shoaling at the entrance to Barnegat Inlet. Due to this shoaling Barnegat Inlet Buoy 3 (LLNR 915) and Barnegat Inlet Lighted Buoy 4 (LLNR 925) are unreliable at marking the navigational channel. Mariners are advised to use extreme caution when transiting Barnegat Inlet. See SEC DB BNM 235-22.

Cape May Inlet - New Jersey Intracoastal Waterway/General/Hazards To Navigation/Shoaling Reported
New Jersey Intracoastal Waterway
Shoaling reported developing in the vicinity of New Jersey Intracoastal Waterway Junction Lighted Buoy LEI (LLNR 35485).

Shoaling report in the vicinity of New Jersey Intracoastal Waterway Daybeacon 245 (LLNR 35945) and New Jersey Intracoastal Waterway Buoy 246 (LLNR 35955) based on ACOE Survey August 24, 2023.

Elk River Channel - Sassafras River/General/Hazards To Navigation/Shoaling Reported
Sassafras River
Shoaling has been reported in Sassafras River extending from Sassafras River Daybeacon 8 (LLNR 27495) to the southeast approximately 520 yards towards Sassafras River Light 10 (LLNR 27500) and into the channel approximately 50 yards to reported depths of seven feet at mean low water.

Chester River - Kent Island Narrows North Approach/General/Hazards To Navigation/Shoaling Reported
Kent Island Narrows North Approach
A USACE survey has identified shoaling to a depth of four feet in the Kent Island Narrows North Approach within the channel boundaries between Kent Island Narrows North Approach Light 2KN (LLNR 26415) and Kent Island Narrows North Approach Light 8 (LLNR 26435). Mariners are urged to use caution when transiting the area.

Shoaling has been reported between New Jersey Intracoastal Waterway Daybeacon 159 (LLNR 35640) and New Jersey Intracoastal Waterway Light 160 (LLNR 35645). At low tide, area is impassable.

St Clements Bay - St Patrick Creek/General/Hazards To Navigation/Shoaling Reported
St Patrick Creek
Shoaling has been reported in St. Patrick Creek to depths of 2-4 feet at MLW near St. Patrick Creek Channel Buoy 3 (LLNR 17123) and extending to Buoy 7 (LLNR 17145). Shoaling of 1 foot at MLW has been observed within the channel limits in the vicinity of St. Patrick Creek Channel Buoy 4 (LLNR 17130).

Sector Anchorage, Submerged Land Act (SLA) - Prince William Sound/General/Hazards To Navigation/Hazards
Prince William Sound
General/Hazards To Navigation/Hazards
The State of Alaka is issuing routine updates on the Barry Arm Landslide Tsunami risk. This threat is located in Barry Arm and has the potential to create a tsunami if/when a landslide is generated that impacts the water in Barry Arm. If/when this occurs localized wave heights will be very hazardous in Barry Arm and Harriman Fjord. Port Wells and Passage Canal will also see inundation and strong, unusual currents for hours following an event. The geologic makeup of the area is similar to Alaskan locations where two previous landslide caused tsunamis occurred, in Lituya Bay (1958) and Icy Bay (2015), both causing extremely large but localized tsunamis. Mariners should maintain vigilance when in the vicinity of Barry Arm or nearby waters and be prepared to depart the area if any unusual geologic activity is observed. Studies are being conducted and the situation is being monitored to allow for a better understanding of the potential results of a slide. Additional information is available at https://dggs.alaska.gov/hazards/barry-arm-landslide.html.

Chesapeake Channel - Little Wicomico River/General/Hazards To Navigation/Shoaling Reported
Little Wicomico River
Severe shoaling, as low as 2ft MLW in places within the Pier Jetties, of the Little Wicomico River, VA, have been reported.

Sector Virginia, Submerged Land Act (SLA) - Chesapeake Channel/General/Hazards To Navigation/Hazards
General/Hazards To Navigation/Hazards
Mariners are advised that Seacoast Construction will be establishing a barge mooring area approximately 1.2 nautical miles West of Barren Island in the Chesapeake Bay (Approximate 38°19’30”N 76°16’40”W) from 12/16/2024 to 06/01/2027 . There will be large stone barges moored at and towed to and from the mooring area to the shipping channel and there will be multiple stone scows towed to and from the mooring area to Barren Island. There will be multiple vessels in the area. The mooring area will be outside but near the shipping channel. All mariners are advised that a slow bell may be required upon request. All marine equipment operators will be monitoring VHF-FM Channel 65 and Channels 16 and 13. Work vessels will monitor Channel 13 and 16. Mariners are advised to proceed with caution when transiting the area.

New River - New River Cape Fear River/General/Hazards To Navigation/Shoaling Reported
New River Cape Fear River
Shoaling has been reported between New River - Cape Fear River Light 122 (TRUB currently) (LLNR 39660) and New River - Cape Fear River Buoy 121A (LLNR 39598). ACOE survey shows depths of 4 to 5 foot MLLW in channel.

Sector North Carolina, Territorial Sea - Sector North Carolina, Submerged Lands Act (SLA)/General/Hazards To Navigation/Shoaling Reported
Sector North Carolina, Submerged Lands Act (SLA)
General/Hazards To Navigation/Shoaling Reported/ Old Topsail Creek
Most recent ACOE survey dated 18NOV24 & 26NOV24 shows that shoaling completely spans channel between Old Topsail Creek Buoy 6 (LLNR 30036) and Old Topsail Creek Buoy 8 (LLNR 30038). Survey shows MLLW depths as shallow as 2-5' in channel.

Sector San Juan, Territorial Sea/General/Hazards To Navigation/Hazards
Sector San Juan, Territorial Sea
General/Hazards To Navigation/Hazards
The U.S. NAVY is advising all mariners to refrain from entering the following area in Ceiba, Puerto Rico: the waters surrounding Isla Piñeros.
Mariners are advised to stay away from this danger zone until further notice, as it contains (UXO) Unexploded Ordnance. The U.S. Coast Guard
may be contacted via VHF-FM Channel 16 or via landline at (787) 289-2041. For more information, contact Mrs. Maria Danois at (757) 412-7843
or email: maria.m.danois.civ@us.navy.mil.

Radas Roosevelt Passage/General/Hazards To Navigation/Hazards
Radas Roosevelt Passage
The U.S. NAVY is advising all mariners to refrain from entering the following areas in Vieques, Puerto Rico: Northeast from Puerto Diablo to Punta
Este and on the Southeast on Bahia Salinas Del Sur. Mariners are advised to stay away from this danger zone until further notice, as it contains
(UXO) Unexploded Ordnance. The U.S. Coast Guard may be contacted via VHF-FM Channel 16 or via landline at (787) 289-2041. For more
information, contact Mrs. Maria Danois at: (757) 412-7843 or email: maria.m.danois.civ@us.navy.mil.

Main Channel - Claremont Terminal Channel/General/Hazards To Navigation/Shoaling Reported
Claremont Terminal Channel
Based on the latest available surveys conducted by the Army Corps of Engineers, November 4, 2024, shoaling has occurred in Claremont Terminal Channel. The shoaling has minimized the available depth of water to 15 feet near the centerline of the channel.
Based on this data, vessels will be restricted to a draft of 13 feet, plus the rise in tide, with a maximum draft of 18 feet.

Main Channel - New Jersey Pierhead/General/Hazards To Navigation/Shoaling Reported
New Jersey Pierhead
Claremont Terminal Channel Shoaling – The Harbor Safety, Operations and Navigation Committee of the Port of NY and NJ – Deep Draft Working Group: The need to immediately restrict the deep draft of vessels transiting Claremont Terminal Channel has come to our attention. Based on the latest available surveys conducted by the Army Corps of Engineers, November 4, 2024, shoaling has occurred in the channel. The shoaling has minimized the available depth of water to 15 feet near the centerline of the channel. Based on this data, vessels will be restricted to a draft of 13 feet, plus the rise in tide, with a maximum draft of 18 feet. On 11/04/2024, the shoal area was bound by the following approximate coordinates: 40° 41’11”N, 074° 04’ 41”W; thence to 40° 41’ 17”N, 074° 04’ 33”W; thence to 40° 40’ 14”N, 074° 03’ 06”W; thence to 40° 40’ 10”N, 074° 03’ 13”W.

Plum Island Sound - Merrimack River/General/Hazards To Navigation/Shoaling Reported
Merrimack River
Shoaling has been reported in The Merrimack River. Mariners are advised to transit the area with extreme caution, as the charted depth of the channel may be inaccurate.

Plum Island Sound - Merrimack River/General/Hazards To Navigation/Shoaling Reported
Merrimack River
Shoaling has been reported in the Merrimack River in the vicinity of the Merrimack River Bar. Mariners are advised to transit the area with extreme caution, as the charted depth, may be inaccurate.

Shoaling report in the vicinity of New Jersey Intracoastal Waterway Daybeacon 129 (LLNR 35530) and New Jersey Intracoastal Waterway Lighted Buoy 130A (LLNR 35536) based on ACOE Survey May 13, 2024.

New River - New River Cape Fear River/General/Hazards To Navigation/Shoaling Reported
New River Cape Fear River
Shoaling has been reported at Carolina Beach Inlet crossing west of New River - Cape Fear River Buoy 154 (LLNR 39725) and New River - Cape Fear River Buoy 154A (LLNR 39726). Additionally, shoaling is located east of New River - Cape Fear River Buoy 155A (LLNR 39735). New River - Cape Fear River Buoys 154A (LLNR 39726) and 155A (LLNR 39735) have been relocated to mark best water in accordance with latest USACE survey. Reported depths as shallow as 2ft to 6ft MLLW in channel.

Sector Corpus Christi, Territorial Sea - Sector Corpus Christi, Submerged Land Act (SLA)/General/Hazards To Navigation/Obstructions
Sector Corpus Christi, Submerged Land Act (SLA)
Gulf of America - Obstruction --- Reported: 2025-03-10 --- Industrial space debris has been reported in the Gulf of America, south of the Brazos Santiago Pass South Anchorage. Industrial space debris can range in size and may be completely submerged or visible above the waterline. Mariners are urged to avoid the area.

Sector New Orleans, Territorial Sea - Sector New Orleans, Submerged Land Act (SLA)/General/Hazards To Navigation/Hazards
Sector New Orleans, Submerged Land Act (SLA)
Gulf of America - East Bay --- Reported: 2025-04-01 --- Multiple aid to navigation discrepancies (lights and fog horns) have been reported on platforms located in the South Pass Area, Blocks 27 and 28. Mariners are urged to transit this area with extreme caution.

Sector Boston, Submerged Land Act (SLA)/General/Hazards To Navigation/Obstructions
Sector Boston, Submerged Land Act (SLA)
General/Hazards To Navigation/Obstructions
MA – ATLANTIC OCEAN – MASSACHUSETTS BAY – Uncharted
Obstructions
Mariners are advised that two uncharted obstructions have been identified from
recent survey operations that were conducted in Massachusetts Bay in the
42’034.890W in approximately 135 feet of water. The obstruction appears to be
protruding approximately 26 feet above the seabed Mariners are advised to
use extreme caution when transiting the Area.
Chart: 13267

Sector North Carolina, Submerged Lands Act (SLA) - Bogue Inlet/General/Hazards To Navigation/Shoaling Reported
Bogue Inlet
Shoaling has been found with depths as low as 2ft MLW between Bogue Inlet Buoy 4 (LLNR 29520) and Bogue Inlet Buoy 6 (LLNR 29540) as well as outbound of Bogue Inlet Lighted Buoy 1 (LLNR 29495). Buoys 1 to 4 have been temporarily discontinued when weather permits.

Sector Humboldt Bay, Submerged Land Act (SLA)/General/Hazards To Navigation/Shoaling Reported
Sector Humboldt Bay, Submerged Land Act (SLA)
The Humboldt Bat Pilots have imposed a draft restriction of 36 feet based on a +6.0 foot tide due to shoaling at the entrance of Humboldt Bay. For any questions or concerns contact The Humboldt Bar Pilots Association (707)834-4939.

San Diego Bay - Zuniga Jetty/General/Hazards To Navigation/Wrecks
Zuniga Jetty
The Coast Guard has received a report of a capsized 25-foot vessel IVO Zuniga Jetty, located at 32-40N 117-13W. Mariners are requested to transit the area with caution. For more details or information, contact the Sector San Diego JHOC at 619-278-7033.

San Diego Bay - Zuniga Jetty/General/Hazards To Navigation/Wrecks
Zuniga Jetty
The Coast Guard has received a report of a submerged sailing vessel, with a mast visible above water, east of Zuniga Jetty at approximately 32° 40' 21.5112", -117° 13' 22.659". Mariners are requested to transit the area with caution. For more details or information, contact the Sector San Diego JHOC at 619-278-7033.

Barden Inlet - Core Sound/General/Hazards To Navigation/Shoaling Reported
Core Sound
Unit found shoaling between Harkers Island Straits Light 14 (LLNR 29382) to Harkers Island Straits Light 15 (LLNR 29384) depth reached as low as 4 ft.

Sector Virginia, Submerged Land Act (SLA) - Great Machipongo Inlet/General/Hazards To Navigation/Shoaling Reported
Great Machipongo Inlet
Shoaling observed between Great Machipongo Inlet Buoy 2 and Great Machipongo Inlet Lighted Buoy 3. Depths of 3ft MLW observed.

Main Channel - Menemsha Creek/General/Hazards To Navigation/Shoaling Reported
Menemsha Creek
Shoaling has been reported in Menemsha Creek, Massachusetts. Water depths in the vicinity of Menemsha Creek Buoy 4 (LLNR 15965) have been reported as low as 3.5 feet across the channel.

San Pedro Bay - Anaheim Bay/General/Hazards To Navigation/Shoaling Reported
Anaheim Bay
The U.S Coast Guard has received a report of shoaling in the vicinity of Anaheim Bay Channel's East and West Jetty Lights. All vessels with a draft of 31 ft or greater are cautioned to remain in the center of the channel during tides of less than +1 FT tide. Risk of grounding exists on the sides of the channel during tides of -0 ft for drafts of 31 ft or greater. All mariners are advised to transit the area with caution. Direct all questions and concerns to d11-smb-sectorlalb-wwm@uscg.mil.

Sector Virginia, Submerged Land Act (SLA) - Chincoteague Channel/General/Hazards To Navigation/Shoaling Reported
Chincoteague Channel
Shoaling has been reported between Chincoteague Inlet Lighted Buoy 8 (LLNR 5305) and Chincoteague Channel Lighted Buoy 10 (LLNR 5315 ). Depth as low as 4.3ft MLW have been observed.

Sacramento River Deep Water Ship Channel - Sacramento River/General/Hazards To Navigation/Hazards
Sacramento River
ATON/PATON Discrepancies
Discrepancy Information:
A partially submerged white foam buoy has been reported in the Sacramento River 120' South of the I Street Bridge in the middle of the East channel. Mariners are advised to proceed with caution and report to the USCG any sightings of this buoy.

Bogue Sound - Bogue Sound New River/General/Hazards To Navigation/Shoaling Reported
Bogue Sound New River
Shoaling has been observed between Bogue Sound – New River Buoy 66B (LLNR 39243) and Bogue Sound – New River Light 66 (LLNR 39245), south of buoy 66B. Shoaling is reported of less than 4FT MLW and extends into the channel.

Main Channel - Menemsha Creek/General/Hazards To Navigation/Shoaling Reported
Menemsha Creek
Shoaling has been reported in Menemsha Creek, Massachusetts. Water depths in the vicinity of Menemsha Creek Buoy 4 (LLNR 15965) have been reported as low as 3.5 feet across the channel. Mariners are advised to transit the channel with extreme caution.

Sector Anchorage, Territorial Sea - Sector Anchorage, Submerged Land Act (SLA)/General/Hazards To Navigation/Hazards
Sector Anchorage, Submerged Land Act (SLA)
Western Marine Construction will be preforming work on the Kenai River in the vicinity of Old Town Park downtown from May 16th – October 15th. Vessels transiting the area should give work barges a wide berth. Anchor lines from barges, marked with crown buoys, will extend into the channel creating a hazard. During low tides certain vessels may not be able to transit depending on draft. For more information, please contact Western Marine at (206) 622-9161.

Lake Superior/General/Hazards To Navigation/Shoaling Reported
Lake Superior

Keweenaw Waterway - Torch Lake Canal/General/Hazards To Navigation/Shoaling Reported
Torch Lake Canal

Clearwater Harbor - St Joseph Sound/General/Hazards To Navigation/Shoaling Reported
St Joseph Sound
20402
All mariners are advised that extreme shoaling and shallow water has developed throughout Hurricane Pass Channel in between Caladesi and Honeymoon Islands in Pinellas County, FL, specifically in the vicinity when transiting between Hurricane Pass Channel Daybeacons 8 through 11. All mariners are advised to use extreme caution while transiting Hurricane Pass Channel to the potentially hazardous conditions. For further information please contact U.S. Coast Guard Sector St. Petersburg at (727) 824-7506.

Main Channel - Canapitsit Channel/General/Hazards To Navigation/Shoaling Reported
Canapitsit Channel
Shoaling has been reported in Canapitsit Channel near Cuttyhunk Island, Massachusetts. Water depths in the vicinity of Canapitsit Channel between Canapitsit Channel Buoys 3 and 5 have been reported as low as 5.5 feet in the channel

Sector Virginia, Territorial Sea - Sector Virginia, Submerged Land Act (SLA)/General/Hazards To Navigation/Shoaling Reported
Sector Virginia, Submerged Land Act (SLA)
City of Virginia Beach survey dated September 4, 2025 indicates shoaling starting 450’ West of the east ends of the jetties and continuing eastward to approximately 325’ East of the east ends of the jetties. Least depth 7.3’ MLLW.

Sector Delaware Bay, Terrorial Sea - Sector Delaware Bay, Submerged Land Act (SLA)/General/Hazards To Navigation/Shoaling Reported
Sector Delaware Bay, Submerged Land Act (SLA)
Lewes Ditch Navigational Channel, Delaware Department of Natural Resources and Environmental Control, Division of Watershed Stewardship, Shoreline and Waterway Management Section reporting extreme shoaling within the navigational channel, mariners are advised to use caution when transiting the channel, and use slow no wake.

Cape Fear River - Cape Fear River Little River/General/Hazards To Navigation/Shoaling Reported
Cape Fear River Little River
Shoaling has been reported in the vicinity of Shallotte Inlet Crossing between Cape Fear River - Little River Buoy 80A (40337) and Cape Fear River - Little River Buoy 81 (40340). Reported MLLW depths as shallow as 3-4foot in channel as shown in latest USACOE survey.

Galveston Bay Entrance Channel - Houston Ship Channel/General/Hazards To Navigation/Shoaling Reported
Houston Ship Channel
Houston Ship Channel - Shoaling --- Reported: 2024-12-11 To: Until further notice --- Shoaling has been reported in the Upper Houston Ship Channel, reducing water depths from the red side of the channel to the center line, between the Texas Beltway 8 Toll Bridge and a quarter mile above Houston Ship Channel Light 146 (LLNR-25790). Deep draft vessels are advised to proceed with caution. Vessels with a draft of 35 feet or greater should avoid the red side of the channel in this area. USACE surveys can be found at the following:

Elk River Channel - Summit Bridge To Bull Minnow Point/General/Hazards To Navigation/Shoaling Reported
Summit Bridge To Bull Minnow Point
U.S. Coast Guard Sector Delaware Bay is notifying mariners of shoaling on the Chesapeake and Delaware Canal in the vicinity of Chesapeake City, MD. Army Corp is imposing a draft restriction of 28’6”. Mariners are advised to review the latest U.S. Army Corps of Engineers survey for Chesapeake & Delaware Canal prior to transiting and use extreme caution when transiting the area.

Sector Virginia, Submerged Land Act (SLA) - Chesapeake Channel/General/Hazards To Navigation/Shoaling Reported
Shoaling has been reported to 1-2 feet extending 50 yards channel ward from Horn Harbor Lighted Buoy 8 (LLNR 14487).

Sector Anchorage, Submerged Land Act (SLA) - Alaska Peninsula/General/Hazards To Navigation/Obstructions
Alaska Peninsula
General/Hazards To Navigation/Obstructions
A newly installed fiber optic submarine cable by GCI has been laid from Chignik Lagoon to Chignik Bay, Alaska. This cable is an extension to an already charted cable. Mariners are advised to avoid anchoring in the middle of the channel to prevent entanglements. Any concerned traffic can contact Coast Guard Sector Western Alaska and US Arctic Command Cetner at 9074284100. All vessels are requested to transit the area with caution and report all sightings to the Coast Guard.

Galveston Bay Entrance Channel - Houston Ship Channel/General/Hazards To Navigation/Shoaling Reported
Houston Ship Channel
Houston Ship Channel - Barbours Cut - Shoaling --- Reported: 2024-12-13 To: Until Further Notice --- Shoaling to 39 ft has been reported in the north side of the Barbours Cut Flare. Vessels are advised to proceed with caution.

Sector Honolulu, Territorial Sea - Mokapu Peninsula/General/Hazards To Navigation/Hazards
Mokapu Peninsula
Wave Energy Converter (OE-35) experienced structural failure on the port sea duct. Four large pieces of structure (up to 22 MT) have detached from the buoy and fallen to the seafloor. Further sea duct failure may occur. Suspension of deployment is imminent and coordination of tow to lay berth is in process. Mariners are requested to maintain 1000 FT from buoy.

Mobile Channel - Mobile River/General/Hazards To Navigation/Shoaling Reported
Mobile River
Mobile River - Three Mile Creek Turning Basin - Shoaling/Draft Restrictions --- Reported: 2025-07-10 --- Soundings conducted by the USACE Mobile District indicated areas of reduced depth in the Mobile River Channel. Dredging of the Upper River (above the Grain Elevator) is largely complete, except for portions of the eastern section of the Three Mile Creek Turning Basin. The 37 ft draft restriction has been lifted with the following exception: Vessels with a draft exceeding 37 ft that require access to the eastern portion of the turning basin for mooring or turning will remain subject to the restriction. Vessels exceeding a draft of 37 ft and intending to transit this area should contact the Harbor Master/Alabama Port Authority Office in advance. Vessels approaching berths on the west side of the river are authorized to use up to the full project depth of 40 ft.

Sector Southeastern New England, Territorial Sea - Sector Southeastern New England, Submerged Lands Act (SLA)/General/Hazards To Navigation/Shoaling Reported
Sector Southeastern New England, Submerged Lands Act (SLA)
Shoaling has been reported in the vicinity of Lewis Bay Approach Channel Lighted Buoys 5 and 6. Marinres are advised to transit the area with extreme caution.

Little Narragansett Bay/General/Hazards To Navigation/Shoaling Reported
Little Narragansett Bay
Shoaling has been reported on the west end of Sandy Point, Stonington Harbor. Mariners are advised to transit the are with extreme caution and safe speed.

New Orleans Harbor - New Orleans To Baton Rouge/General/Hazards To Navigation/Shoaling Reported
New Orleans To Baton Rouge
Mississippi River, Mile 234.0, AHOP - Shoaling --- Reported: 2025-07-16 --- Shoaling has been reported in the Mississippi River, along the RDB near Mile 234.0, AHOP, at Wilkerson Point. Vessels should only transit the center span and Baton Rouge span of the Highway 190 Bridge and avoid transiting the Port Allen span. Mariners are urged to transit the area with caution.

Sector Humboldt Bay, Submerged Land Act (SLA) - Humboldt Bay/General/Hazards To Navigation/Hazards
Humboldt Bay
A dangerous submerged piling exists below the waterline in POS 40-45-26.441N, 124-13-25.363W. Mariners are advised to transit the area with extreme caution and to remain channelward of the newly placed green buoy. For questions and comments please contact smb-d11alameda-signalmanagement@uscg.mil

Shoaling report in the vicinity of New Jersey Intracoastal Waterway Daybeacon 221 (LLNR 35867) based on ACOE Survey May 20, 2024.

Mobile Channel - Theodore Ship Channel/General/Hazards To Navigation/Shoaling Reported
Theodore Ship Channel
Theodore Ship Channel - Shoaling/Draft Restrictions --- Reported: 2025-07-29 --- Recent soundings conducted by the U.S. Army Corps of Engineers, Mobile District, indicate areas of reduced depth in the Theodore Ship Channel, specifically near the intersection with the Mobile Channel. As a result, a draft limitation of 37 ft is now in effect for vessels transiting this section of the Theodore Ship Channel. Vessels exceeding the draft limitations with intentions to transit this area, should contact Terry Gilbreath at (251) 441-7074. Additionally, vessels should coordinate with the bar pilots for any further restrictions prior to departure. For further information, mariners can contact the U.S. Coast Guard Sector Mobile Waterways Management Division at (251) 382-8653.

New Orleans Port Arthur/General/Hazards To Navigation/Shoaling Reported
New Orleans Port Arthur
GIWW, Mile 99.0, WHL - Shoaling --- Reported: 2025-07-31 --- Shoaling has been reported approximately 100 ft off the north bank of the GIWW, near Mile 99.0, WHL. Mariners are urged to transit the area with caution.

Galveston Bay - Galveston Channel/General/Hazards To Navigation/Shoaling Reported
Galveston Channel
Galveston Harbor Channel - Port of Galveston - Draft Restrictions --- From: 2024-10-25 To: Until Further Notice --- Due to shoaling, draft restrictions of 43.5 ft or less are in place at the Port of Galveston. Waivers for vessel drafts may be granted based on the state of tides and transit plans. All deep draft vessels should transit the channel with caution and reference recent USACE channel surveys at:

Galveston Bay Entrance Channel - Texas City Channel/General/Hazards To Navigation/Shoaling Reported
Texas City Channel
Texas City Channel - Port of Texas City - Draft Restrictions --- From: 2025-02-05 To: Until Further Notice --- Due to shoaling, draft restrictions of 45 ft or less are in place at the Port of Texas City. Waivers for vessel drafts may be granted based on the state of tides and transit plans. All deep draft vessels should transit the channel with caution and reference recent USACE channel surveys at:

Sector Los Angeles, Territorial Sea - Sector Los Angeles, Submerged Land Act (SLA)/General/Hazards To Navigation/Hazards
Sector Los Angeles, Submerged Land Act (SLA)
The Oxbow Bridge in the vicinity of Cibola, Arizona, caught on fire and collapsed. Leading to the river being blocked and debris drifting down stream. All mariners are requested to transit the area with caution.

Atchafalaya River - Morgan City To Port Allen/General/Hazards To Navigation/Shoaling Reported
Morgan City To Port Allen
Morgan City to Port Allen Alternate Route - Atchafalaya River - Shoaling --- Reported: 2025-08-06 --- Shoaling has been reported between Mile 1.0 and 2.0 of the Morgan City to Port Allen Alternate Route, near Conrad Shipyard. Mariners are urged to transit the area with extreme caution and report and waterway concerns to the U.S. Coast Guard VTS Berwick Bay via VHF-FM Channel 11.

Sector Charleston, Submerged Land Act (SLA) - Winyah Bay Charleston Harbor/General/Hazards To Navigation/Shoaling Reported
Winyah Bay Charleston Harbor
25632
Mariners should proceed with caution when transiting between Winyah Bay-Charleston Harbor Daybeacon 37 (LLNR 34240) and Winyah Bay-Charleston Harbor Light 50 (LLNR 34300) due to shoaling.
During low tide, there have been reported depths less than 3.5 ft inside the channel in various locations.

Plum Island Sound - Merrimack River/General/Hazards To Navigation/Hazards
Merrimack River
MA – NEWBURYPORT – MERRIMACK RIVER – HAZARD TO NAVIGATION
Mariners are advised that the US Army Corps of Engineers, New England District will install two scientific devices near the South Jetty, Merrimack River in Newburyport, MA. The devices will be installed by the R/V Lophius within the inlet south of the federal channel and northwest of the South Jetty near Reservation Terrace/North Point in approximate position 42° 48’58.48”N, 070° 48’33.29”W and 42° 49’03.40”N 070° 48’38.73”W. The devices will be deployed on August 12th and 13th, 2025 and remain for approximately one month and retrieved on September 18th, 2025. The devices will each be marked by a buoy. Mariners are requested to keep well clear of the buoys and devices. The hours of operation of the project are 24x7, 7 days per week. On scene vessels can be contacted on VHF CH 12 and 16. For more information please contact Coral Siligato at 978-987-7001.
Chart 13274

Niagara River - Lake Erie/General/Hazards To Navigation/Obstructions
Lake Erie
A submerged breakwater was constructed in Ashtabula Harbor. It is connected to the existing East Breakwater. The submerged breakwater is connected to the East Breakwater at the first angle point of the East Breakwater, as entering the harbor, from the lake. All elevations referenced are referred to Low Water Datum (LWD), IGLD 1985. The center line of the submerged breakwater approximately follows the same azimuth as the first segment of the East Breakwater, in a south easterly direction, for approximately 1000', then slightly bends to the east for another two segments, for approximately 500'. The first 1000' (Area "A") has a crest elevation that varies between LWD to - 1 ft LWD with a crest width of 9', and a footprint of approximately 150', with the next 100' transitioning to the dimensions in the next item. The final 400 (Area "B") has a crest height of -5.0', with a crest width of 9', and a footprint of approximately 50'. All mariners are requested to transit the area with caution.

Lower Mississippi River - Upper Mississippi River/General/Hazards To Navigation/Shoaling Reported
Upper Mississippi River
Shoaling has been reported in the vicinity of Mile 302.0, 60 feet from the green buoy line. Mariners are urged to exercise caution in the area.

New Orleans Harbor - New Orleans To Baton Rouge/General/Hazards To Navigation/Shoaling Reported
New Orleans To Baton Rouge
Mississippi River - Shallow Water --- Reported: 2025-08-23 --- Shallow water has been reported along the RDB near the CF Industries Terminal, Mile 173.6, AHOP. Mariners should transit this area with extreme caution.

Arkansas River - Verdigris River/General/Hazards To Navigation/Shoaling Reported
Verdigris River
Mariners are advised to use caution while transiting the downstream approach to Newt Graham L/D, between approximate Miles 421.4 and 421.2. Shoaling is encroaching the left descending channel; therefore, vessels should favor the green side of the channel and hug the right descending wall while transiting the lower approach. Upbound doubles may still experience difficulties with adequate depths when maneuvering lightboat around barges on the left descending side within the lower approach. Questions or requests for additional information should be directed to Mr. Kenneth Todd, Deputy Operation Project Manager, at (918) 607-0951 or Mr. Jacob Simpson, Navigation Field Engineer, at (918) 430-4783.

Sector Boston, Submerged Land Act (SLA) - Nantasket Roads Southern Approach/General/Hazards To Navigation/Obstructions
Nantasket Roads Southern Approach
MASSACHUSETTS – BOSTON OUTER HARBOR – NANTASKET ROADS HULL GUT– GEORGES ISLAND ¬– HAZARD TO NAVIGATION
Mariners are advised that a hazard to navigation has been reported East of Hull Gut between George’s Island and Hull MA in position approximate 42-18’34.70” N / 070-55’10.10” W. The hazard is reported to be an aluminum mesh pogie net near or on the surface entangled in a submersible cable. Both the cable and the net are reported to be on the surface. Mariners are urged to use caution and keep a sharp lookout when transiting the area.

Chesapeake Channel - James River/General/Hazards To Navigation/Shoaling Reported
James River
Army Corp of Engineers Survey dated August 8, 2025 indicates shoaling from James River Light 124 (LLNR 12610) to James River Lighted Buoy 126 (LLNR 12620) with a least depth of 16.0' MLLW. Centerline depths range from 24.9' to 17.7'.

Lower Mississippi River - Upper Mississippi River/General/Hazards To Navigation/Shoaling Reported
Upper Mississippi River
Shoaling has been reported inside the channel, in the vicinity of Mile 274.0. Mariners are urged to transit the area with caution.

Plum Island Sound - Merrimack River/General/Hazards To Navigation/Shoaling Reported
MA- NEWBURYPORT - MERRIMACK RIVER - SHOALING
There have been multiple reports of vessel groundings IVO Merrimack River Lighted Buoy 7 due to shifting shoaling. Mariners are advised to use extreme caution when transiting this area, paying particular attention to water depth in relation to vessel draft.

THERE HAVE BEEN MULTIPLE REPORTS OF VESSELS GROUNDING IVO MERRIMACK RIVER LIGHTED BOUY 7 DUE TO SHIFTING SHOALING. MARINERS ARE ADVISED TO USE EXTREME CAUTION WHEN TRANSITING THIS AREA, PAYING PARTICULAR ATTENTION TO WATER DEPTH IN RELEATION TO VESSEL DRAFT.

Providence River Approach - Providence River/General/Hazards To Navigation/Obstructions
Providence River
The vessel WESTERN ROCK will be stern to the pier, utilizing a Meditation mooring in Providence, RI from September 13, 2025, between 8:30am to 12:30 pm and again on September 14, 2025, between 1:30pm to 6:30pm. Mariners can contact the WESTERN ROCK on VHF-FM CH 6. Mariners are requested to transit the area with caution and minimize wake, when in the area.

Sector Houston-Galveston, Submerged Land Act (SLA) - Galveston Bay Entrance Channel/General/Hazards To Navigation/Shoaling Reported
Galveston Bay Entrance Channel
Galveston Bay Entrance Channel - Shoaling --- Reported: 2025-09-04 --- Shoaling to 40 ft has been confirmed near the centerline of the Galveston Bay Entrance Channel, between Galveston Bay Entrance Channel Lighted Buoy 11 (LLNR-23790) and Galveston Bay Entrance Channel Lighted Buoy 12 (LLNR-23795). U.S. Coast Guard VTS Houston/Galveston directs no meeting or overtaking of deep draft vessels near Galveston Bay Entrance Channel Lighted Buoys 11 and 12.

Arkansas Post Canal - Arkansas River/General/Hazards To Navigation/Shoaling Reported
Arkansas River
Shoaling has been reported between approximate Miles 237.8 and 237.1. Mariners are urged to favor the red buoy line and exercise caution in the area.

Lower Mississippi River - Upper Mississippi River/General/Hazards To Navigation/Shoaling Reported
Upper Mississippi River
Shoaling has been reported along the sailing line between approximate Miles 255.0 and 250.0. Mariners are urged to exercise caution in the area.

Sector New York, Submerged Lands Act (SLA) - Ambrose Channel/General/Hazards To Navigation/Obstructions
Ambrose Channel
OEG Group will be wet storing 8 anchors in the vicinity of KP28 within the anchorage corridor in position 40-34-22.20N, 074-01-08.25W, from Septer 9, 2025, to September 26, 2025.

Shoaling has been reported along the sailing line in the vicinity of Mile 355.2. Mariners are urged to exercise caution in the area.

Sector Corpus Christi, Submerged Land Act (SLA) - Port Mansfield Channel/General/Hazards To Navigation/Shoaling Reported
Port Mansfield Channel
Port Mansfield Channel - Shoaling --- Reported: 2025-03-12 --- Extreme shallow water and shoaling has been reported throughout the Mansfield Cut/Port Mansfield Channel. Mariners should exercise caution when navigating through this area and pay close attention to tide levels when departing and returning through the cut.

New Orleans Port Arthur/General/Hazards To Navigation/Shoaling Reported
New Orleans Port Arthur
GIWW - Shoaling --- Reported: 2025-06-11 --- Extensive shoaling has been reported in the vicinity of 20 Grand/Tidewater Point in the GIWW, near Mile 95.5, in approximate position 29-41-16.80N 091-12-34.14W. The shoaling is protruding from the north and south bank approximately 150 ft. All loaded tows greater than 600 ft shall use an assist vessel when turning in or out of 20 Grand/Tidewater Point. Mariners are reminded to report any concerns to VTS-Berwick Bay on VHF-FM Channel 11 and should transit this area with extreme caution. Surveys of the area can be found at the following:

Lower Mississippi River - Ohio River/General/Hazards To Navigation/Wrecks
Ohio River
A submerged barge has been reported in the vicinity of East Liverpool, near Mile 45.0, RDB, on September 11, 2025. The submerged barge is reportedly not marked. Mariners may contact U.S. Coast Guard Marine Safety Unit Pittsburgh via VHF-FM Channel 16, or at (412) 670-4288, for additional information.

New Orleans Port Arthur/General/Hazards To Navigation/Obstructions
New Orleans Port Arthur
GIWW - Submerged Obstruction --- Reported: 2025-09-10 --- A submerged obstruction has been reported in the vicinity of GIWW, Mile 177.2, WHL, on September 10, 2025. The submerged obstruction is reportedly not marked. Mariners are urged to use extreme caution in this area and report any sightings or findings to the nearest U.S. Coast Guard unit.