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Transportation

East Side Access Geotech (CHO58B)

Queens, New York

Project Overview

MFS Consulting Engineers & Surveyors, DPC (MFS) was contracted by Mueser Rutledge Consulting Engineers, PLLC (MRCE) to provide geotechnical engineering and instrumentation services for the Metropolitan Transportation Authority Construction and Development (MTA C&D) East Side Access (CH058B) project located in Queens, New York.

Queens, New York

Project Details

MFS provided instrument equipment, as well as on-site, full-time special inspections during the subsurface field investigation that consisted of 12 geotechnical test borings to depths between 35 and 85 feet below existing site grade. Four (4) deep benchmarks (approximately 90 feet below grade), eight (8) open standpipe piezometers (approximately 30 feet below grade), nine (9) inclinometer casings (approximately 75 feet below grade), and 17 surface monitoring points were installed as part of the instrumentation scope of work.

MFS observed the subsurface conditions and generated handwritten test boring logs that included soil classifications in accordance with the Unified Soil Classification System and the New York City Building Code, groundwater observations, action of equipment, and other noteworthy observations. The boring logs showed borehole and sample diameters and depths at which drilling, or sampling methods or equipment change. Logs showed total depth of penetration, blow counts, groundwater level, and types of sampling. The drilling equipment make and model, drilling method, date and time drilled, casing, any heaving conditions, loss of circulation, voids, or any other conditions observed during drilling.

Stats

  • Owner:
    MTA C&D

Services Provided

  • MFS provides professional geotechnical engineering services including geotechnical investigation and subsurface exploration, soil engineering services, and permeability testing.