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Government

DASNY Brooklyn Children’s Center Storage Building

Brooklyn, New York

Project Overview

MFS Consulting Engineers & Surveyor, DPC (MFS) provided professional geotechnical engineering and land surveying services in support of the Dormitory Authority of the State of New York (DASNY) Brooklyn Children’s Center Storage Building project located in the borough of Brooklyn, New York.

Brooklyn, New York

Project Details

MFS performed a topographic field survey to locate the accessible above ground physical features, such as, but not limited to; buildings, curbs, edge of pavement, drives, striping, sidewalks, fences, walls, utility/light poles, signs, street trees, tree lines. First floor/garage floor elevations were determined at doorways. Cross sections of paved surfaces were surveyed at a minimum of 50’ intervals and at low/high points. Spot elevations were obtained at a spacing sufficient to develop contours at an interval of ½ foot. Break line features such as top/bottom of curb, edge of pavement, top/bottom of slopes/swales/banks/walls, etc. were located. At waterways the surveys were extend to the edge of water at low tide.

MFS located the accessible surface utilities hardware such as manholes, catch basins, trench drains, valve covers, utility/ light poles, hydrants, etc. MFS also located utility mark-out visible at the time of the field survey that was marked out by others.

For storm drains and sanitary sewers, MFS obtained measurements to determine inverts and pipe sizes at accessible manholes and catch basins. Subsurface utilities such as water, gas, electric and communication were depicted based on surface features and available mapping. Depiction of subsurface utilities were based on the location of surface structures and record mapping.

MFS retained the services of GEOD Corporation to perform Subsurface Utility Engineering services (SUE). SUE services included electromagnetic utility locating in compliance with Quality Level “B” of CI/ASCE 38-02, Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data, hereinafter referred to as Standard 38-02. Any non-locatable utilities discovered through record information were shown on the drawings at Quality Level “C” or “D”. SUE targeted the centerline of utilities for survey by MFS’ survey department. Tunnels, wide ducts, etc. were marked with paint to approximate each side of the system.

MFS coordinated with our trusted drilling agency to drill two test borings to a depth of 27 feet below existing site grade in the footprint of the proposed structure addition. During the test boring operations, MFS observed the subsurface conditions and generated test boring logs to include soil classifications in accordance with the Unified Soil Classification System (USCS) and New York City Building Code (NYCBC), Standard Penetration Test (SPT) results, and other noteworthy observations.

Upon completion of the field subsurface investigation, laboratory testing was performed to verify soil classifications and obtain geotechnical physical characteristics of the soils. The results of the field investigation and laboratory testing program, evaluation of the subsurface conditions, and our geotechnical engineering recommendations were presented in a written geotechnical engineering report. The geotechnical engineering report included design and construction recommendations for the proposed building addition.

Stats

  • Owner:
    Dormitory Authority of the State of New York

Services Provided

  • MFS provides land surveying services throughout the tri-state area, specializing in site surveying, boundary surveys, topographical surveys, and utility surveys. One of the top surveying companies in NJ, we have extensive experience in real estate, infrastructure, utility, transportation and more.
  • MFS provides professional geotechnical engineering services including geotechnical investigation and subsurface exploration, soil engineering services, and permeability testing.