Friday, May 4, 2007

The Dunes



Erosion of the dunes puts the properties along the beach at risk. In an attempt to capture the sand and allow it to restore the dune, snow fence is installed on the seaward side of the dune. The wind blows the sand through, up and over the fence. Since the deposit of sand is protected by the existing dune behind and the wind direction predictable, the sand collects at the base of and behind the snow fence. In as few as 10 weeks, the sand level can rise to cover half the fence or more. Additional rows of fencing placed in front of each other can be installed to continue the process. By doing this, and by planting vegetation (American Sea Grass: Ammophila breviligulata) to hold the sand in place and to help continue the process, we can rebuild a substantial dune.

No comments: