By Maarten van Tartwijk Of DOW JONES NEWSWIRES AMSTERDAM (Dow Jones)--Dutch dredging company Royal Boskalis Westminster NV (BOKA.AE) said Wednesday it will deliver sand berms to protect the Louisiana coast from the oil spill in the Gulf of Mexico. Boskalis, the world's largest dredging company, said it has deployed a trailing suction hopper dredger that will deliver sand berms along the Louisiana coast to stop oil from flowing into the state's fragile and hard-to-clean marshes. The sand berms will be positioned to the south of New Orleans, in line with the Chandeleur Islands and stretching from East Grand Terre island to Sandy Point, Boskalis said. The sand berms will be six feet high and around 75 kilometers long, it added. -By Maarten van Tartwijk; Dow Jones Newswires; +31 20 571 5201; [email protected] (END) Dow Jones Newswires June 16, 2010 04:21 ET (08:21 GMT)