Modjeski and Masters, Inc.

Modjeski and Masters, Inc. Bridge Engineering, Bridge Inspection and Bridge Design Services

Modjeski and Masters is a nationwide leader in the design, inspection, and rehabilitation of all bridges types, including long-span and movable structures. The firm primarily serves state transportation departments, port and turnpike authorities, and railroads. Additional lifecycle services include: field instrumentation and nondestructive testing, bridge security and vulnerability analysis, vesse

l collision analysis, scour analysis, suspension bridge cable and suspender investigations, fatigue evaluations, emergency evaluations and forensic studies, seismic evaluation and design, and bridge research/code/course development.

It was an honor to be a part of the Ben Franklin Bridge’s history when it was designed, constructed, and opened in the 1...
07/15/2026

It was an honor to be a part of the Ben Franklin Bridge’s history when it was designed, constructed, and opened in the 1920s, and it was equally as meaningful to celebrate the bridge's centennial last weekend.

The Delaware River Port Authority - DRPA hosted an impressive day of festivities, including the opportunity to walk across the Ben Franklin Bridge—a structure that stands as one of the defining achievements of our founder, Ralph Modjeski, who served as its chief engineer.

Our President and CEO, Mike Britt, shared the engineering story behind the bridge and the innovation that made it possible.

We also joined the Council of Polish Engineers in North America to reflect on Ralph Modjeski’s legacy and the continued role Modjeski and Masters plays in designing infrastructure that connects communities.

At 100 years old, the Ben Franklin Bridge exemplifies enduring infrastructure that serves generations. We are proud to celebrate its legacy while continuing to build the future.

In this interview with Roads & Bridges, our President & CEO, Mike Britt shares insights on what today's infrastructure l...
07/10/2026

In this interview with Roads & Bridges, our President & CEO, Mike Britt shares insights on what today's infrastructure leaders can learn from Ralph Modjeski's approach to resilience, adaptability, and long-term stewardship.

Michael Britt discusses the lasting influence of Ralph Modjeski, the stewardship of the Benjamin Franklin Bridge, and the challenges facing America's aging infrastructure.

07/09/2026

In celebration of America's 250th anniversary, let's trace how bridge design and engineering helped build the foundation of our national story.

Take a look through our new digital timeline. From the industrial revolution to modern day, we’ll discover the ways bridges connect us through time.

https://www.americanmademodjeski.com/

The most recent episode of the American Society of Civil Engineers Plot Points podcast features M&M's Tom Murphy discuss...
07/07/2026

The most recent episode of the American Society of Civil Engineers Plot Points podcast features M&M's Tom Murphy discussing the engineering behind Philadelphia's Ben Franklin Bridge and its place in the lineage of American infrastructure.

Amid all the America’s 250th anniversary celebrations this summer, the Philadelphia’s Benjamin Franklin Bridge marks its centennial.Thomas Murphy, Ph.D., P.E., S.E., a senior vice president and chief technical officer at Modjeski and Masters, is the perfect person to talk about the bridge’s le...

As we celebrate the Fourth of July, we also mark America’s 250th anniversary - a moment to honor the freedom, progress, ...
07/04/2026

As we celebrate the Fourth of July, we also mark America’s 250th anniversary - a moment to honor the freedom, progress, and innovation that define our nation. Every bridge we build reflects the connections that keep America moving - linking communities, strengthening infrastructure, and shaping the future.

We are so proud to carry on the legacy of our founder Ralph Modjeski and his work as Chief Engineer for the Ben Franklin...
07/01/2026

We are so proud to carry on the legacy of our founder Ralph Modjeski and his work as Chief Engineer for the Ben Franklin Bridge. This summer, the bridge turns 100 years old, and serves as a true testament to lasting infrastructure. This Philadelphia Inquirer article features incredible interactive components that compare the bridge during construction to a 3D model of the bridge today. Thanks to reporter Jasen Lo for his work on the story. Be sure to check out the full story below!

A century after opening, this is how the Benjamin Franklin Bridge was built to last. 🔗: https://ebx.sh/DYK0XD

Thanks to Gavin Jenkins and Roads & Bridges for sharing more about our work on the San Francisco-Oakland Bay Bridge Cabl...
06/30/2026

Thanks to Gavin Jenkins and Roads & Bridges for sharing more about our work on the San Francisco-Oakland Bay Bridge Cable Investigation. Sean Casey and Blaise Blabac discuss utilizing the new AASHTO (American Association of State Highway and Transportation Officials) Guide for Risk-Based Inspection and Strength Evaluation of Suspension Bridge Main Cables.

How do engineers inspect the main cables of one of America's most iconic bridges?

Approaching its 90th birthday, the San Francisco-Oakland Bay Bridge recently underwent its first comprehensive main cable inspection using the AASHTO Guide for Risk-Based Inspection and Strength Evaluation of Suspension Bridge Main Cables.

Roads & Bridges spoke with Modjeski and Masters, Inc.'s Blaise Blabac and Sean Casey about the project, the lessons learned and what the inspection revealed.

Watch the interview at the link below. 👇

06/30/2026

As National Safety Month comes to a close, we’re reminded that safety isn’t just a focus for June - it’s a commitment we carry forward every day.

We partnered with Brad Croop, leader of our Safety Committee, to share his perspective on building a strong culture of safety at M&M.

Watch now to hear his perspective - and let us know in the comments: What does safety mean to you? 👇

Not every bridge begins with steel and concrete. Some begin with the environment.For 130+ years, Modjeski and Masters ha...
06/05/2026

Not every bridge begins with steel and concrete. Some begin with the environment.

For 130+ years, Modjeski and Masters has worked in rivers, wetlands, and protected landscapes where every design decision matters. Today, on World Environment Day, we’re highlighting a few projects shaped by the places they serve.

📍Portageville Bridge – Letchworth State Park, NY
📍Hawk Falls Bridge – Hickory Run State Park, PA
📍CSX Navassa Drawbridge – Cape Fear River, NC
📍Alligator River Bridge – Columbia & East Lake, NC

Building connections. Protecting tomorrow.

This Memorial Day, we pause to honor the brave men and women who gave their lives in service to our country. Their sacri...
05/25/2026

This Memorial Day, we pause to honor the brave men and women who gave their lives in service to our country. Their sacrifice makes the freedoms we enjoy each day possible. We are grateful today and always.

Address

100 Sterling Pkwy, Ste 302
Mechanicsburg, PA
17050

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

(888) 663-5375

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