The Willis Avenue Bridge

The Willis Avenue Bridge

The Willis Avenue Bridge

The Willis Avenue Swing Bridge carries traffic northbound over the Harlem River between the Bronx and Manhattan, seeing over 70,000 drivers each day. The original bridge was constructed in 1901 and after the effects of age, weather and usage, the bridge was replaced in 2010 after traveling 135 nautical miles to NY Harbor. Pennoni provided structural steel fabrication and inspection at more than 60 off-site fabrication shops, coating shops, testing laboratories, and materials suppliers located throughout the United States.



Construction Engineering

Construction Materials Engineering & Testing

Transforming communities for more than 55 years

Throughout five decades, our commitment to elevating the impact of our outcomes through personalized service has been steadfast. We have the flexibility to be innovative in our approach with the integrity to get things right.

We approach the start of every project as the beginning of a collaboration because we understand the value of partnership. As a multidisciplinary firm, Pennoni has the ability to approach engineering challenges from a wider spectrum of angles than most. From land development to energy management, our expertise runs deep and our passion for problem-solving runs even deeper.

Evolving Capabilities

Ever-expanding with growing businesses

55+ Years Experience

meets flexibility

40+ offices

40+ Offices

Local Partners, National Possibilities

1,300+ people

1,400+ People