NWSE Geotech Report - Part A.pdf
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- Solicitation number
- N4008525R2611
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This geotechnical investigation data report details a subsurface investigation for the NWS Earle Ammunition Rail Trestle & Culverts Repair Project located in Tinton Falls, New Jersey. The investigation was conducted by Appledore Marine - CH2M Joint Venture for the Naval Facilities Engineering Command (NAVFAC) between December 2022 and May 2024, with six borings drilled to depths ranging from 27 to 82 feet below ground surface.
The investigation involved comprehensive geotechnical testing, including field exploration, groundwater level observations, and laboratory analysis of soil samples. Key findings include identification of four distinct soil strata: embankment fill, silty sand river deposit, silt deposit, and lower silty sand deposit. Geophysical surveys using ground-penetrating radar and multi-channel analysis of surface waves were performed to identify potential voids within the embankment. The report aims to support engineering design for repairs to the culverts, which exhibit significant corrosion, subsidence, and deteriorated concrete, and will be used to develop repair strategies for the sixteen corrugated metal pipe (CMP) culverts at the site.
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