One World Trade Center

One World Trade Center

One World Trade Center

Developed by the Port Authority of New York and New Jersey – and managed, operated and leased by The Durst Organization, One World Trade Center is redefining Lower Manhattan’s New York skyline. Standing at a symbolic 1,776 feet tall, the architectural and engineering marvel is an ever-present symbol of renewal and hope. The Port Authority’s work at the 16-acre WTC site is estimated at $12 billion and includes 46,000 tons of structural steel for the Freedom Tower alone. Additional towers at the WTC site bring the total estimated work at the 16-acre site to more than $20 billion.

Pennoni has been providing on-call structural steel inspection services for the Port Authority of New York & New Jersey for almost 20 years. Services have included fabrication inspection in Spain for the September 11 Memorial, fabrication inspection in Virginia and Canada for the One World Trade, and field inspection and testing for the Port Authority’s work at the World Trade Center (WTC) site, which includes the Transportation Hub, September 11 Memorial, and One World Trade.

Commercial/Retail

Government

Infrastructure

Construction Engineering

Construction Materials Engineering & Testing

Transforming communities for more than 55 years

Communities face evolving challenges with infrastructure, environment, and funding. Both private and public clients need a partner to understand those challenges and create smart, sustainable solutions.

Longevity Meets Flexibility

With nearly 60 years of expertise, Pennoni delivers innovative solutions by approaching engineering challenges from a wider angle than most and fostering collaboration to address current challenges and future demands.

40+ offices

Local Partners, National Expertise

With 40+ offices, we live, visit, and work in the communities we serve, so we build partnerships to bring the best solutions for the community; not just the best solution.

Evolving
Capabilities

We continually employ innovation to accomplish more for our clients, using the latest technologies to complement our traditional engineering services.

1,300+ people

Pride in Making an Impact

At Pennoni, we start every project by asking "How will this benefit the community?" Because we are a 100% employee-owned firm, our 1,400+ colleagues put our passion, talent, and value into every project, every day.