Jacob Javits Transformer Building
New York, NY
Tishman Construction Company
2016 to 2020
- Installation of (6) 48” diameter caissons
- Concrete rebar and slab foundation
- Existing utilities relocation
- Proximity to Lincoln Tunnel and to West Side Highway
- Use of Guide Wall for pile location
As part of the expansion of the Jacob Javits Center, Posillico was hired to build the foundation for the new Transformer Building along West Side Highway and above resiliency level. The scope of work included installing six 48″ diameter caissons and concrete rebar and slab foundation. The work also involved the relocation of existing utilities, demolition of the existing substation as well as sub-street work on West Side Highway.
WHAT MADE THIS JOB COMPLEX
The complexity of this project was the location specified for the caissons to be installed. The installation called for direct drilling, exactly between the two tunnel tubes. The tolerances were very tight, and the project required a heightened level of precision and skill.
HOW POSILLICO SOLVED IT
To address the challenge of drilling between the two tubes of the tunnel, Posillico built a guide wall out of concrete to maintain pile locations. Constant surveying and monitoring during the drilling of the piles were required to ensure that no deviation took place. This allowed the project to be completed safely and precisely.