Friday, July 19, 2013

If the Beach Erosion keeps up.... 7'13

This is how the far northern end of Pawleys Island looked a year ago last August ( 2012) at low tide.
This is how it looked this afternoon  at low tide.  Notice anything missing?
 Like a lot of sand?
Ever since the last Super Moon (3/19/13)  brought in a super tidal surge,  the North end of Pawleys Island Beach has been eroding away .  This is very odd.  Normally beach erodes from the South end of the barrier islands, is carried around  the backside of the islands by the tidal creek, and deposited on the north end.  In effect, the barrier islands inch northward a a tiny bit each each.  But this year, it is the north end of the island  that is dissolving. 
Here's another picture of the north end beach taken 1/6/12 at low tide.  At the far left  near the lower corner of the photo, you can see the jetty and the wide amount of beach in front of it.  The area has always had a small depression which sometimes left a very shallow tide pool ( seen on the right)  which was closed off from the tidal creek by a sand bar.. Usually the water dissipated quickly within the tide pool
This is that same area, but the sand bar barrier is gone, the beach is open to the outgoing tidal creek  waters and the-pool is now filled constantly with chest deep ( or higher) water.
The dunes themselves are also being effected, as are at least thirteen mansions on the north end that have had the barrier dunes  the sit upon being eaten away at high tide.
It appears that much of the sand that used to be deposited from the south end onto the north end by  tidal creek, is now being placed on a small sand bar that is building in the channel between Pawleys Island and Litchfield Island.  So far the sand bar is barely high enough to break the surface and allow a resting place for the sea birds.  But it has forced the channel on the Pawleys Island side to deepen and become swifter, which will only speed up the erosion.
If this keeps up, all it would take is one good tropical storm, and our barrier island could be no more, and we might find our home on beach front property.


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