WASTE WATER PIPING PROJECT ST. ANDREWS BAY, FLORIDA Application: The project involved armoring exposed sections of a high density polyethylene (HDPE) pipeline to protect it from marine traf?c, tidal scour and storm impact. The Challenge: The original design speci?ed installing the 36-inch, advanced wastewater treatment (AWT) pipeline below the existing seabed. Deviation from the design meant that up to 1,400 feet of the pipeline was insta

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