Hog Island Road Extension - SITE-Blauvelt Engineers, Inc. - A TRC Company (transportation design, civil engineering, highway, bridge, geotechnical, materials testing, commercial inspection, construction, engineers, transportation, drilling, testing, inspection, design-build, resident engineer, ohio, maryland, delaware, pennsylvania, new york, new jersey, south carolina, west virginia, virginia, va, wv, sc, md, oh, pa, de, nj, ny, structure, roadway, infrastructure, civil engineering, design-build)

	Hog Island Road Extension, Tinicum Township, PA SITE-BLAUVELT Engineers was responsible for conducting a geotechnical investigation (2 phases) for a 3,500 LF extension and 2,000 LF realignment of Hog Island Road in Delaware County which, when completed, will serve as the main loop road around the Philadelphia International Airport. Because the locations of both the extension and realignment are situated over marsh land that was hydraulically filled, the subsurface conditions consist of underconsolidated soft compressible organic silts. In order to establish stability and limit post-consolidation settlements, our geotechnical engineers designed a preloading system that consisted of an earthen surcharge and wick drains to accelerate the time of consolidation. An instrumentation system consisting of 20 vibrating wire piezometers and settlement platforms was subsequently designed to monitor the consolidation, the actual installation of which was performed by SITE-BLAUVELT's drilling division. Current work includes monitoring of the piezometers and settlement plates, as well as load testing of bridge foundations and inspecting the installation of production piles.

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Hog Island Road Extension, Tinicum Township, PA