Services: Civil | Categories: Excavation/SOE/Foundation, Asphalt Resurfacing, Highway/Ramp Rehabilitation, Full Depth Road Restoration, Marine Construction, Material Handling, Sewer & Drainage, Tiebacks, Waste Management, Water Infrastructure | Location: New York Metro

Rockefeller University

Location:
New York, NY

Client:
Turner Construction

Contract Value:
$33 Million

Project Dates:
2015 - 2017

Summary
  • Drilled 18” mini caissons
  • Construction of two landlocked Mechanical Electrical Rooms
  • 4,000 CY rock/soil excavation and schist wall removal
  • Drilled 13” mini caissons
  • Shifted lanes to create wok zones
  • Constructed two 1,000’ long grade beam system on either side of FDR Drive

PROJECT OVERVIEW

Posillico was contracted by Turner Construction to excavate and install foundations for the new two-acre Riverside Building being constructed above the FDR Drive. The new building was designed to span six lanes of traffic and a portion of the East River Esplanade. The intent was to fill the gap between the pre-existing Rockefeller University Building and the Hospital for Special Surgeries Building, which are also over the FDR Drive. In addition, Posillico installed 8 flood barriers along the southbound side of the FDR Drive to protect access doors and louver vents at the FEMA Flood Line, along the roadway level of the new Rockefeller University River Building.

WHAT MADE THIS JOB COMPLEX

This project was made difficult by the nature of working in a long and narrow work zone, landlocked by the campus buildings, and between the East River and the 45 ft. high campus schist wall. Hurdles to the project progress required immediate redesign and redeployment of resources. Material and equipment storage in the work zone were scarce. With both day and night shifts, six days a week, it was imperative to schedule work and plan all operations to be fed exclusively from deliveries made during the night shifts. In addition, Posillico had to plan around two other major NYC contracts taking place simultaneously along the FDR and also requiring nightly lane closures.

HOW POSILLICO SOLVED IT

Posillico assisted the Owner with developing ideas to minimize the number of necessary nighttime lane closures by utilizing demo chutes. The Posillico team also assisted in developing an alternate pile design to reduce the number of piles and shorten the schedule, utilizing compressors stored on barges to minimize impact on the esplanade. Diligent planning and robust Safety training and protocols enabled Posillico to complete this project successfully.

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