PS 254 – Drilled Displacement Piles
Location: Brooklyn, NY
Client: NYC School Construction Authority
Project Dates: October 2019 to November 2019
Contract Value: $740,000
Summary
• Foundation support for new school in Brooklyn
• Installation of drilled displacement piles
• Installation of helical piles
• No spoil, low vibration application
PROJECT OVERVIEW
This project included the furnishing and installation of 102, 16” drilled displacement piles and 9 helical piles, to provide support for the foundation of a new school for the NYCSA.
WHAT MADE THIS JOB COMPLEX
This project presented several challenges: the site was located in a residential neighborhood, on an existent school property while school was in session. In addition, the unique style of piles required special equipment.
HOW WE SOLVED IT
To take on those challenges and make this project a success, Big River purchased the specialized tooling that would facilitate the installation of the piles. Big River also developed a redesign of the grout mix to be able to batch it on site, providing the field crew with more flexibility and control. The Big River team was very conscious of the sensitive nature of the building and ongoing classes. Success was achieved through working closely with the client, adjusting work hours, and remaining in constant communication with the stakeholders throughout the project.
