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

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, 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

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), 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