Wednesday, October 28, 2009
Markers on the ICW
I am some what sure that at one time mile markers were evenly spaced and prevalent along the ICW. With the neglect of the waterway, it seems that the markers are few and far between. Most cruisers carry an ICW guide that leads you along the way, identifying anchorages and marinas and the like by the mile marker it is located at or near. Our electronic chart has no such identification, although the papercharts do indicate the mile marks. Incidentally, the ICW is based upon statute miles, and a nautical mile is approximately 9/10th of that measure.
Along most bridges (but not all) you will find markers indicating the height of the bridge clearance. In this picture, a mast higher than 65 feet will clear under. Most fixed bridges are 65 feet, with the notable exception of a Florida bridge that we never pass under, and the Wilkerson Bridge in North Carolina, which is said to be 64 feet. Strong southerly winds can blow water into the ditch, decreasing the clearance. So, if you are 62 1/2 feet like First Edition, you should have nothing to worry about except in those conditions.