Interstate 676

Interstate 676

Interstate 676

Interstate 676 carries approximately 106,000 vehicles a day across its 1.75-mile length, making it an integral part of Philadelphia’s traffic system. The highway travels east to west across Philadelphia’s bustling Center City business district, connecting the Schuylkill Expressway (I-76) and Interstate 95 (I-95).

Pennoni was selected by the PennDOT Engineering District 6-0 to complete the development of conceptual plans, contract bid documents, and services during construction for the superstructure replacement of seven non-composite bridges, which include 22nd Street, 21st Street, 20th Street, The Free Library of Philadelphia Pedestrian Bridge, 19th Street, The Family Court Pedestrian Bridge, and 18th Street, all of which span I-676. Pennoni managed a large design team and coordinated with more than 30 stakeholders and reviewing agencies to work toward solutions that meet the needs of the community and agencies. The firm is currently providing construction administration services.



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