dmccarty
Super Star Member
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The only low-cost and stable coast is going to be one that is allowed to build dunes that will naturally advance and retreat, that has tidal marshes capable of absorbing exceptional surges--that means moving structures away from the near-coast to give enough space for that to happen. Homes protected by seawalls and beach replenishment, dredging, etc. are a constant source of expenditure that is ineffective over the long term.
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Before I left FLA, I read an article written by a professor studying beach erosion in FLA. He said erosion was taking place because of man made structures, sea wall, jetties, channels, etc, preventing the movement of sand along the coast. He said that the Big Bend area on the west coast of FLA did not have beach erosion because there were few, if any, man made structures in that protected area.
I was looking at some photos taken of the NC beaches after Sandy. It looked pretty grim. It does not take a PhD to figure that a building on a narrow sand dune is not going to last very long. Of course, this is why people historically did not live on the barrier islands. Only a few people lived out there until very recently and for good reason. Distant family members have a beach house on the NC coast. The house was built in the 50's best I can tell and it has a good amount of beach left. We stayed in a condo built on stilts next to the house once upon a time. The surf at high tide, was hitting the only dune between the house and the ocean. I did not sleep much because of the waves a few feet from my head. No way in heck I would own property on one of those moving dunes.
Later,
Dan