Good question, I kept hearing that term thrown around without ever hearing the exact definition. A “berm” is defined as a ledge, shelf, or raised barrier. The sand berms in the Gulf Coast being talked about are basically sand BARRIERS – mounds of sediment that would surround the coast (after being constructed) and potentially prevent the spread of oil to marshlands by dredging up the oil.
Sand berms are dredged material that is placed in front of barrier islands off the coast of Louisiana to protect the gulfs from incoming oil from the Gulf. They, along with jetties, will protect the coastline.
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