Construction of Pontiac Playground

Bronx, New York

Project Overview

MFS Consulting Engineers & Surveyor, DPC provided professional geotechnical engineering services for the City of New York Parks and Recreation (NYC Parks) Construction of Pontiac Playground project.

Bronx, New York

Project Details

MFS coordinated with a trusted subcontracted drilling agency to drill five (5) test borings and four (4) permeability tests. Each of the borings were completed to refusal, which ranged from approximately 7 feet to 14 feet below existing site grade. MFS obtained Standard Penetration Test samples continuously in the upper 15 feet during each of the borings. In addition, environmental samples were collected at depths of 0 inches to 6 inches below grade, 6 inches to 2 feet below grade, and 2 feet to 5 feet below grade. Permeability tests were conducted at depths of 3 feet, 5 feet, and 10 feet below grade.

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), 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 changed. Logs showed total depth of penetration, blow counts, groundwater level (if encountered), and types of sampling. The drilling equipment make and model, drilling method, date and time drilled, casing, any heaving conditions, loss of circulation, and voids were also noted on the logs.

Geotechnical laboratory tests were performed to classify soils and obtain geotechnical physical characteristics for soils. Environmental laboratory tests were conducted on the soil samples obtained and the results were compared to the New York State Department of Environmental Conservation (NYSDEC) Part 375 Restricted Residential Soil Clean Up Objectives. The results of the field investigation and laboratory testing program and recommendations on the suitability of green infrastructure practices were presented in a written geotechnical scope summary memorandum.


  • Owner:
    New York City Parks

Services Provided

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