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    • MSIB: UPDATE 7 to Safety Zone, Carolina Bays Bridge, Socastee, SC AICW Statute Mile 372


      Another change of dates. At least there is very little boat traffic here in January and we are lucky that Officer Heck has a direct contact with the construction company which allows him to get these notifications right away. Thank you Office Heck! This 65ft high-rise fixed bridge was begun in April of 2014 and will cross the Waterway just south of the two new high-rise bridges at Socastee. See /135939 for background on this bridge.

      Good Morning,

      Sector Charleston received schedule change notice from contractor in charge of Carolina Bays Parkway Project. New dates noted below.

      UPDATE #7: Date change notification.

      The Coast Guard is establishing a safety zone during overhead construction activities related to the Carolina Bays Parkway Project (SC-31) located in Socastee, SC. A 200-yard safety zone will be established on the Atlantic
      Intracoastal Waterway (AICW) in the vicinity of mile marker 372.3 encompassing all waters directly under the SC-31 project as well as vessels and machinery associated with construction efforts. Enforcement will take place during overhead construction activities on the dates listed below. Entry of vessels or persons into the safety zone is prohibited unless specifically authorized by the Captain of the Port or a designated representative.
      Mariners are urged to plan transits accordingly to avoid unnecessary disruptions. Project site can be found on NOAA Chart 11534-Myrtle Grove Sound and Cape Fear River to Casino Creek. Location currently noted as “Bridge Under Construction”.
      Dates:
      January 16, 2018 7 a.m. to 5 p.m.

      The Coast Guard will provide notice of any date or time changes to the regulated area by Local Notice to Mariners, Broadcast Notice to Mariners, Marine Safety Information Bulletins and on-scene designated representatives.
      This MSIB can be viewed at www.homeport.uscg.mil. For questions or concerns regarding this MSIB, please contact Sector Charleston Waterways Management Division at (843)323-7761 or the sector’s 24-hour Command Center Line at (843)740-7050.
      Regards,
      Justin Heck
      Sector Charleston
      Waterways Management Division
      P: 843-740-3184
      F: 843-740-3189

      Click Here To Open A Chart View Window, Zoomed To the Location of SC31 Bridge Site

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    • LNM: New Opening Schedule, US 17 Bridge, Ashley River, Charleston, SC off AICW Statute Mile 469


      US 17 Bridge over the Ashley is not a Waterway bridge and its schedule will affect only those wanting to explore the upper Ashley River and whose air draft can clear the 51ft fixed vertical clearance bridge immediately downriver of the twin US 17 bascule bridge. These modifications, which limit openings to between 9AM and 4PM, will be greatly appreciated by James Island motorists such as yours truly!

      SOUTH CAROLINA – CHARLESTON HARBOR – ASHLEY RIVER – US 17 BRIDGE: Final Rule
      SUMMARY: The Coast Guard is modifying the operating schedule that governs the US17 Highway Bridges (Ashley River Bridges), across the Ashley River, miles 2.4 and 2.5, in Charleston, SC. This rule requires a bridge tender to be present during daytime hours only from 9 a.m. to 4 p.m. daily for on signal openings. All other times a 12 hour advanced notification is required. This modification provides relief to vehicle traffic congestion with minimal effect on navigation.
      DATES: This rule is effective January 16, 2018
      ADDRESSES: To view documents mentioned in this preamble as being available in the docket, go to http://www.regulations.gov. Type USCG-2016-0776 in the “SEARCH” box and click “SEARCH.” Click on Open Docket Folder on the line associated with this rulemaking.
      FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, call or e-mail LT Justin Heck, Coast Guard Sector Charleston, SC, Waterways Management Division; telephone 843-740-3184, e-mail justin.c.heck@uscg.mil.
      Chart 11524 LNM 51/17

      Click Here To Open A Chart View Window, Zoomed To the Location of US 17 Bridge

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    • Reminder of Shoaling in Problem Stretch south of McClellanville, AICW Statute Miles 430-433


      The waterway south of McClellanville has been shoaling for years and as the LNM reports below, funds are not available for dredging. SSECN recommends mid to high tide for passage through this section.

      SOUTH CAROLINA – AICW – CASINO CREEK TO BEAUFORT RIVER – WINYAH BAY-CHARLESTON HARBOR: Shoaling Extended.

      Shoaling has been reported in the vicinity of Winyah Bay-Charleston Harbor Light 35 (LLNR 34235 [33°4.6474N / 079°27.5501W, 33.077457 / -79.459168]) and Daybeacon 42 (LLNR 34260 [33°3.3526N / 079°30.4338W, 33.055877 / -79.507230]). The reporting source also indicates that the depth of the water between Winyah Bay-Charleston Light 38 (LLNR 34245 [33°3.9434N / 079°29.0818W, 33.065723 / -79.484696]) and Daybeacon 42 (LLNR 34260 [33°3.3526N / 079°30.4338W, 33.055877 / -79.507230]) is approximately 4ft; however the depth is charted at 7ft. The ACOE has no future plans for dredging due to budget restrictions. Further information can be found on the ACOE Charleston website http://www.sac.usace.army.mil/ Mariners are advised to use extreme caution while transiting the area. Chart 11518 LNM 37/16

      Click Here To View the Cruisers’ Net’s “AICW Problem Stretches” Listing For McClellanville

      Click Here To Open A Chart View Window, Zoomed To This AICW Problem Stretch

      Comments from Cruisers (1)

      1. Phil Mullins -  September 16, 2016 - 1:22 pm

        Just came through the McClellanville problem in a 5 ft. draft sail and ran aground 4 times at 2 hrs before low tide. The worst part is a 2 mile stretch between Jeremy Creek and ICW marks 39 and 40 headed south. Mid to rising tide is a must when transiting this area.

        Phil Mullins
        S/V Katash
        Isle of Palms, SC

        Reply to Phil
    • Shallow Water in Minim Creek Canal, AICW Statute Mile 415, 8/31/2016


      This area of shallow water is at the south end of the Estherville Minim Creek Canal which begins at the Waterway’s exit southward from Winyah Bay.

      SOUTH CAROLINA – AICW – MYRTLE GROVE SOUND AND CAPE FEAR RIVER TO CASINO CREEK – WINYAH BAY – CHARLESTON HARBOR: Depth of Channel.
      The U.S. Coast Guard has found at low-tide depths of less than 5ft of water in the middle of the channel between Winyah Bay-Charleston Harbor Channel Light 4 (LLNR 34120 [33°11.7192N / 079°16.3300W, 33.195320 / -79.272167]) and Winyah Bay-Charleston Harbor Daybeacon 5 (LLNR 34125 [33°11.4410N / 079°16.5012W, 33.190683 / -79.275020]). Mariners are advised to use caution while transiting the area. Chart 11532, 11534 LNM 35/16

      Click Here To Open A Chart View Window, Zoomed To A “Navigation Alert” Position at Minim Creek Canal

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    • Shoaling Extending Southeast at Combahee Light, St. Helena Sound, AICW Alternate Route


      Cruisers wishing to avoid the regularly shoaling Ashepoo-Coosaw Cutoff by using the alternative route (/?p=145074 and /145808) downsteam in St. Helena Sound to the Combahee Bank, then northwestward upstream on the Ashepoo River to rejoin the ICW, will want to pay close attention to depths as you round the Combahee Bank Light.

      SOUTH CAROLINA – ST HELENA SOUND: Shoaling
      Shoaling has been reported extending from Combahee Bank Light (LLNR 4040 [32°28.0631N / 080°26.0629W, 32.467719 / -80.434381]) approximately 1NM in a southeast direction. Depths are reported between 5-15ft at Mean Low Water, while Chart # 11517 shows between 22-25ft. Mariners are advised to transit the area with extreme caution. Chart 11517 LNM 28/16

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    • New Charleston Harbor Entrance Chart Available, AICW Statute Mile 465


      As of July 4, 2014, new chart 11525 (Charleston Harbor Entrance and Approach) replaces the old chart 11523 (Charleston Harbor Entrance) and Chart 11523 is also replaced with 11528. It expands chart coverage further east, covering an additional 345 square nautical miles that wasn’t on the old chart. The harbor entrance channel intersects the Waterway at statute mile 465. And while this new chart is intended primarily for deep draft commercial vessels, it has value for all vessels navigating the entrance channel jetties which have prompted two recent Navigation Alerts: /?p=142704 and /?p=114481

      UPDATE LNM: 34/14

      Chart Title: SOUTH CAROLINA, CHARLESTON HARBOR ENTRANCE AND APPROACH 11528 1st, Ed 01-Jul-14
      NOAA Chart 11525 has been withdrawn and re-issued as Chart 11528.
      NOAA Chart 11523 25th Edition (South Carolina, Charleston Harbor Entrance) has been cancelled and replaced with NOAA Chart 11528.
      Find information on obtaining charting products and a listing of authorized agents at
      www.nauticalcharts.NOAA.govfor nautical charts and publications.

      Click Here To Open A Chart View Window, Zoomed To the Entrance to Charleston Harbor

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    • Shoaling Confirmed in Northern Fields Cut, AICW Problem Stretch, Statute Mile 574, 8/20/2014


      The intersection of Northern Fields Cut and the Wright River lies north of the intersection of the Waterway and the Savannah River. Shoaling at this Problem Stretch has always been an issue and, even with last year’s dredging, shallow depths might be expected. This new Local Notice confirms earlier reports of severe shoaling as reported on May 21st, see /?p=141095.

      SOUTH CAROLINA-AICW-BEAUFORT RIVER TO ST SIMONS SOUND-FIELDS CUT: SHOALING
      There is shoaling directly in the middle of the AICW in Fields Cut. A depth of 2FT was reported in approximate position 32-05.185N/080-56.022W (32°5.1850N / 080°56.0220W, 32.086417 / -80.933700) during low-tide and poses a hazard to navigation. Mariners are advised to exercise extreme caution while transiting the area. Chart 11507 LNM: 33/14

      Click Here To View the Cruisers’ Net’s “AICW Problem Stretches” Listing For Northern Fields Cut

      Click Here To Open A Chart View Window, Zoomed To A “Navigation Alert” Position at Northern Fields Cut

      Comments from Cruisers (1)

      1. Ray Schmidt -  August 22, 2014 - 8:34 pm

        Subject, Northern Fields Cut shoal

        FYI, 3 years ago, coming north in the spring, a barge/push boat were coming up behind me so I idled on the side and told the tug captain that I would wait until he passed since I was not familiar with this area. He said I would have no problems as he passed and then he went aground. By the time he managed to push the barge through the shoal, there was a line of boats behind him and me. I called him and thanked him for moving the shoal for us.

        Reply to Ray
    • Upper Waccamaw Navigation Aids to be Removed, off the AICW to Conway, SC

      AICW/Upper Waccamaw Intersection - Click for Chartview

      Several of our fellow cruisers have reported on the pleasant upstream trip on the Upper Waccamaw to Conway, SC. See /?p=126674 and /?p=128632. The “uncharted” Upper Waacamaw departs the Waterway at statute mile 375 and, until now, has been well marked off-chart by aids #5-#16. While depths in the Upper Waccamaw are reported to be good, the removal of these daybeacons and buoys will certainly make this side trip more difficult. Our Congress at work!

      SOUTH CAROLINA – AICW – WACCAMAW RIVER
      The following changes will be made to the aids to navigation system in the Waccamaw River.
      All Waccamaw River Daybeacons and Buoys from Daybeacon 5 (LLNR 33780) to Daybeacon 16 (LLNR 33810) will be permanently discontinued. There are seven aids to navigation that will be removed. This action is scheduled to start the week of the 17th of February 2014. Chart 11534 LNM: 51/13

      Instead of removing Aids to Navigation, we ought to remove `Aides to Congress’
      John Winter

      Click Here To Open A Chart View Window, Zoomed To the Location of Upper Waccamaw/AICW Intersection

      Click Here To View the Cruisers’ Net’s South Carolina Marina Directory Listing For Conway City Marina

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    • ACOE Confirms Shoaling on “AICW Problem Stretch” North of Charleston Harbor, Statute Mile 460

      Cruisers’ Net has posted reports of shoaling in this Problem Stretch (which the ACOE terms as “behind Breach Inlet”) for months now. (see /?p=120335). The US Army Corps of Engineers in Charleston, SC has made dredging these stretches their #1 priority. Now, we just have to find some money/”supplemental appropriate” to get the job done!

      SOUTH CAROLINA-AICW-WINYAH BAY – CHARLESTON HARBOR-ISLE OF PALMS-SULLIVANS ISLAND: Severe Shoaling
      The ACOE of Charleston, South Carolina has reported the location of severe shoaling in the AICW between Charleston Harbor and Winyah Bay near Isle of Palms and Sullivans Island in South Carolina. An area of severe shoaling exists between Winyah Bay-Charleston Harbor Daybeacon 117A(LLNR 34510.5 [32°47.1935N / 079°48.5564W, 32.786558 / -79.809273]) and Winyah Bay-Charleston Harbor Daybeacon 119(LLNR 34520 [32°46.8301N / 079°49.3927W, 32.780502 / -79.823211]). Further information can be found on the ACOE Charleston website at http://www.sac.usace.army.mil/ The ACOE has no future plans for dredging due to budget restrictions. Mariners are advised to transit the area with extreme caution.
      Chart 11518

      My neighbor in a Sportfish (5′ Draft) found the bottom at low tide last week near [the AICW channel running past] Isle of Palms.
      Be safe and take care-
      Bob

      Click Here To View the Cruisers’ Net’s “AICW Problem Stretches” Listing For the AICW North of Ben Sawyer Bridge to Isle of Palms Bridge

      Click Here To Open A Chart View Window, Zoomed To This AICW Problem Stretch

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    • Dredging NOT in the Forecast for Ashepoo/Coosaw Cutoff AICW Problem Stretch, Statute Mile 517

      This extract, cherry picked from a recent Local Notice to Mariners, refers to the AICW Problem Stretch known as the Ashepoo – Coosaw. This man-made canal connects the AICW between Rock Creek and the Coosaw River.
      Some two weeks ago, the SSECN posted an IMPORTANT “Navigation Alert” about severe shoaling at the northeastern end of the Ashepoo – Coosaw Cutoff, near marker #177 (see /?p=119918). A little later, we also published reports by fellow cruisers that soundings had also deteriorated at the southwestern tip of the Cutoff (see /?p=120036).
      Partnered with the Atlantic Intracoastal Waterway Association and the South Carolina Marine Association, we subsequently asked for the help of the cruising community in securing a “special appropriation” to have these waters dredged (see /?p=120893).
      The official notice below confirms that dredging cannot take place here due to budgetary restrictions. Until and if the money is found to deepen this AICW Problem Stretch, either wait for high to mid-tide or see Tony Constant’s recommended alternate route: /?p=120938

      South Carolina-AICW-Winyah Bay ‘“ Charleston Harbor-Ashepoo Coosaw Cutoff: Severe Shoaling

      The ACOE of Charleston, South Carolina had just finished an official survey of the AICW from Charleston, SC to Beaufort. Two patches of severe shoaling exist; the first appearing at the northeastern tip of the Ashepoo-Coosaw Cutoff near Ashepoo-Coosaw C/O LT 177 (LLNR 35195 [32°31.4564N / 080°28.9358W, 32.524273 / -80.482264]). The other area is at the southwestern tip of the Ashepoo-Coosaw C/O between Ashepoo-Coosaw C/O DBN 180 (LLNR 35195 [32°31.4564N / 080°28.9358W, 32.524273 / -80.482264].3) and Ashepoo-Coosaw C/O DBN 185 (LLNR 35205.2 [32°30.6493N / 080°30.1351W, 32.510822 / -80.502252]). Further information can be found on the ACO Charleston website at http://www.sac.usace.army.mil/ The ACOE has no future plans for dredging due to budget restrictions. Mariners are advised to transit the area with extreme caution.

      Claiborne,
      We just got the alert and request to contact our legislators with regard to the AICW shoaling problems in South Carolina. We live right on the AICW in Hilton Head, and frequently see the long dredge strings being towed back and forth between Florida and North Carolina. We’ll get their attention when shoaling is so bad that they can’t move their dredges to all those other places where they do dredge!
      K. C. Moore, Jr.

      And, messages like the one below are the result of not keeping up with AICW maintenance dredging:

      We have decided to cancel our trip South this year for this very reason. Probably would have been our last since we are turning 70 this year. How sad to watch this wonderful waterway be ignored, when it means so much to so many.
      It truly saddens me to see all that’s going on ‘¦ or not going on ‘¦ in our wonderful country.
      Please keep up your good work of keeping people informed and, hopefully, safe !
      Best Always,
      John

      Click Here To Open A Chart View Window, Zoomed To A “Navigation Alert” Position on the Northeastern Tip of the Ashepoo-Coosaw Cutoff, Near Marker #177

      Click Here To View the Cruisers’ Net’s “AICW Problem Stretches” Listing For the Ashepoo – Coosaw Cutoff

      Click Here To Open A Chart View Window, Zoomed To This AICW Problem Stretch

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    • Offshore Towers a Hazard, South Carolina to Cape Canaveral

      This is a Local Notice to Mariners for our cruising brethren who choose to avoid shallow parts of the Ditch by going offshore. These unlighted towers are roughly 40 nautical miles off the coasts of South Carolina and Georgia, from St. Catherines Sound to Cumberland Island.

      SEACOAST-SOUTH CAROLINA-GEORGIA-CHARLESTON LIGHT TO CAPE CANAVERAL: Hazard to Navigation.
      There are eight (8) offshore U.S. Navy Aircraft Towers charted as lighted. The towers are not lighted, they are no longer used, not maintained and in very poor condition. The towers pose a hazard to navigation and are slated for removal in the future.
      The Positions of the (8) Towers:
      31 03 00.0N, 80 26 59.4W
      31 22 29.9N, 80 33 59.5W
      31 13 00.1N, 80 06 59.7W
      30 47 59.8N, 80 18 59.9W
      30 56 30.4N, 80 44 59.7W
      31 32 00.1N, 80 14 00.0W
      31 49 00.4N, 80 16 29.5W
      31 37 59.8N, 79 55 30.0W

      Chart 11480

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    • Dredging in Cooper River, Charleston, SC, north of AICW Statute Mile 468

      This dredging operation is centered well north of the Waterway as it passes through Charleston Harbor, but it might affect cruisers wanting to navigate upriver to explore the Cooper River. Marker #48 lies north of the Ravenel Bridge.

      LOCAL NOTICE TO MARINERS: Week 38/11
      Southern Dredging Co. Inc., will be working in Daniel Island Reach of the Cooper River in the vicinity of channel marker 48 and Shipyard River commencing on or about September 26, 2011 and ending approximately October 6, 2011. The dredge CHEROKEE will operate 24 hours a day, 7 days a week and will monitor VHF channels 13 and 16 for on-scene coordination. The pipeline will be not block the channel. For further information please contact the project manager Mr. Neil Rodgers 843-729-1269 or Mr. Michael Kitchell 843-830-1015. For Coast Guard related issues, please contact Sector Charleston Waterways Management Office at (843) 740-3188 or the 24 Hour Command Center Line at (843) 740-7050. Chart 11524

      Click Here To Open A Chart View Window, Zoomed To the Location of Cooper River Marker #48

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    • Shoaling at AICW Marker 117A, Isle of Palms, Statute Mile 460

      We have had numerous reports about shoaling in the Waterway stretch from the Ben Sawyer Bridge to McClellanville, SC. These reports are now a LNM and we continue to recommend a mid-to-high tide passage.

      LOCAL NOTICE TO MARINERS: Week 13/11
      Severe shoaling has been reported in vicinity of Sullivans Island, south of Winyah Bay-Charleston Hbr DBN 117A (LLNR 34510.5 [32°47.1935N / 079°48.5564W, 32.786558 / -79.809273], reported depth at 3.5 FT in channel. All mariners are advised to transit the area with extreme caution. Chart 11518

      Passed from Charleston, SC to Georgetown today (4/13/11 0900-1400hrs) at low tide. Skinny water most of the way. Followed a boat that took 3.5 draft and they got through. We take 3.0 and regulary saw 3.4 on finder. Once passed McClellanville, 9.7 feet or better. Lady Soul II.
      Capt M Rhett

      This remains an issue with numerous 7’MLW soundings south of G117A, usually when crossing side creeks. While 7′ MLW is adequate for most cruisers, the channel is very narrow there and appears to shoal rapidly off centerline. Due to our draft, I time this with some tide and take it slow, sticking to the `magic-enta’ line.
      Pascal aboard MY Charmer, 70′ 6+ draft

      Click Here To Open A Chart View Window, Zoomed To the Location of Daybeacon #117A

      Comments from Cruisers (1)

      1. Bill -  May 11, 2018 - 1:35 pm

        Forget following the magenta line! It’s a reference line showing you the path of the ICW. IT IS NOT an indication of deep water.
        The shoals change on a regular basis, the magenta line does not.
        Follow the markers, read the water and listen to others comments on their experiences but don’t stick to the dam magenta line!

        Cruisers’ Net Comment: You tell’em Bill!!

        Reply to Bill
    • Shoaling Reported North of Charleston, AICW Statute Mile 457

      This shoaling is just north of the Isle of Palms Connector Bridge. Earlier reports had advised staying in the center of the channel, except as advised at marker #117A.

      LOCAL NOTICE TO MARINERS: Week 12/11
      Severe shoaling reported in the vicinity of Winyah Bay-Charleston Harbor DBN 117A
      (LLNR 34510.5 [32°47.1935N / 079°48.5564W, 32.786558 / -79.809273]), reported depth at 3.5 ft in the channel. Chart 11518

      Check your charts… make adjustments and be watchful
      Jim Lowry

      We just went through there this morning (at high tide) [3/25/11] without any problems. Didn’t see less than 10ft
      Harriet Levine Hardy

      Click Here To Open A Chart View Window, Zoomed To the Location of Daybeacon #117A

      Comments from Cruisers (2)

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