Hmmm, the clearance at this bridge could be a problem at times for sailcraft skippers piloting vessels with particularly tall masts. Read on!

Subject: Isle of Palms fixed bridge clerance
Cruising News: Be advised that the Isle of Palms fixed bridge at SM 458.9 had, according to the height guage, only 63 feet clearance at the morning high tide March 30 (full moon) and that was not the highest of the two high tides that day. We need 64 and waited for 65 by the guage. We did not test it for accuracy! Judging by the marking board scunge line, the 65 foot mark is often under water, rather than being only occasionally covered under exceptional tide and surge. All you tall rigs beware
John and Joan
Destiny