. Construction materials for coastal structures. Coastal engineering; Building materials. Figure 76. Beach protection with "billboard" groins, Ninilchik Harbor, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Moffatt & Nichol, Engineers; Coastal Engineering Research Center (U. S. ). Fort Belvoir, Va. : The Center

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Keywords: ., bookcentury1900, bookcollectionbio, booksubjectbuildingmaterials