Modjeski and Masters

With expertise in bridge design, maintenance, and inspection, our success comes from staying true to our core beliefs: Experience, Innovation, and Trust

[Modjeski and Masters @ModjeskiMasters]

We all have our red flags. This Valentine's Day, we quizzed our people to see what they value in a relationship, but with a bridge design and engineering twist.

Thanks to our engineers for participating in this one!

[Modjeski and Masters @ModjeskiMasters]

We loved finding these old letters to Ralph Modjeski, sent to him in honor of his 75th birthday.

Take a look, and join us in wishing him a happy 165th birthday!

[ASCE Headquarters @ASCETweets]

You’ve heard of Bring Your Kid to Work Day, but what about Bring Your Bridge to Work Day?

In the latest installment of his #ASCESource series, More Water Under the Bridge, Brian Brenner gets the scoop on @ModjeskiMasters’ new semiannual holiday: https://t.co/pTb5DVkxoQ.

[Modjeski and Masters @ModjeskiMasters]

Take a look back with us.

We’re grateful for another year of growth alongside our clients, partners, and the communities we serve. Thank you to everyone who made this year a success.

[Modjeski and Masters @ModjeskiMasters]

Spanning the Mississippi River between St. Louis, MO, and Venice, IL, the McKinley Bridge marks 115 years since its opening this year. Designed by Modjeski and Masters and completed in 1910, the bridge was among the earliest major projects led by our founder, Ralph Modjeski.

[Modjeski and Masters @ModjeskiMasters]

For 25 years, our Technical Access and Rope Access (TARA) team has brought precision to bridge inspections around the world, minimizing service interruptions and reducing costs while maintaining the highest standards of safety & quality. Here’s to 25 years of reaching new heights

[ARTBA @ARTBA]

The Crescent City Connection in New Orleans is shining bright. 🌟
@LA_DOTD and @ModjeskiMasters upgraded its lighting with 1,500+ programmable LEDs—boosting safety, resilience and beauty across the Mississippi River. Read more in #TransportationBuilder: https://t.co/y7X0OwSwiX

[Modjeski and Masters @ModjeskiMasters]

For Tom Murphy, the answer to what makes M&M such a great place to work is simple: the people. It’s also the kind of work we take on, from cutting-edge engineering to restoring century-old structures, that makes his role uniquely rewarding.

[Modjeski and Masters @ModjeskiMasters]

Grab this month’s Constructioneer magazine, featuring our team’s expertise on the Point-No-Point Bridge replacement project in New Jersey. M&M is proud to lead construction management for this $185M effort alongside GHCCI. https://t.co/2dr6ZFMZVL

[Modjeski and Masters @ModjeskiMasters]

The Ogdensburg-Prescott Bridge was completed 65 years ago today, creating an international crossing that facilitates trade and tourism between Ogdensburg, New York, and Johnstown, Ontario.

[Modjeski and Masters @ModjeskiMasters]

Thanks @ASCETweets for featuring our work on the Green Bank Telescope!

[ASCE Headquarters @ASCETweets]

Scaling a 17-million-pound telescope? Just another day at the office for the highly trained @ModjeskiMasters structural engineers and technicians who inspect one of the world’s most remarkable scientific instruments.

Learn about the engineers who preserve the Green Bank Telescope + how their ongoing work to recoat the world’s largest fully steerable radio telescope will keep it ready for cosmic discovery: https://t.co/qv82YWC4nX.

[AREMA @AREMArail]

Thank you to our Gold sponsors for supporting #AREMA2025: V3, Design Nine, Inc., @moffattnichol, HDR, TGB, @PCLConstruction, Edna Rice Executive Recruiters, @Granite, DEFPCO. Olsson, CSR Engineering, @ColliersEng, Pave America, Mott MacDonald, @TYLI_Group, and @ModjeskiMasters

[Modjeski and Masters @ModjeskiMasters]

Since joining M&M in 1986, Quentin Johnson has seen bridge engineering transform in remarkable ways. In this blog, he shares lessons from nearly four decades at the firm and why he’s proud to still call M&M home. https://t.co/QxaWfyC839

[Modjeski and Masters @ModjeskiMasters]

Spanning Highland and Poughkeepsie, NY, the Mid-Hudson Bridge has been a vital connection for 95 years. Designed by Modjeski and Masters and opened in 1930, this suspension bridge remains a proud part of our legacy of engineering excellence. Happy 95th anniversary!

[Modjeski and Masters @ModjeskiMasters]

After witnessing the devastation of the 2015 earthquake in Nepal, Sulok Wagley knew he wanted to help build a safer, more resilient future. Today, through his work at M&M, he’s doing just that.

[Modjeski and Masters @ModjeskiMasters]

For more than 20 years, we’ve led inspections of the world’s largest fully steerable radio telescope, the Robert C. Byrd Green Bank Telescope in Green Bank, West Virginia.

Thanks to https://t.co/Aoth2tRnnl for the great write-up featuring this iconic structure

[Modjeski and Masters @ModjeskiMasters]

In 1950, Formula One crowned its first World Drivers’ Champion and Jackie Robinson signed with the Dodgers. It was also the year the Cumberland Burnside Bridge opened. Seventy-five years later, this bridge is still going strong. Happy anniversary, Cumberland Burnside Bridge!

[Roads & Bridges @roadeditor]

For his coverage of the @IntlBridgeConf in Pittsburgh, Senior Managing Editor Gavin Jenkins interviewed @ModjeskiMasters Project Manager Andrew Adams and Senior Engineer Frank Artmont about the Fern Hollow Bridge collapse investigation.

https://t.co/PvcSD2dzKO

[Modjeski and Masters @ModjeskiMasters]

People who love what they do, supported by strong benefits, meaningful work, and a culture built on connection—that’s M&M. Watch to learn more about what sets us apart. https://t.co/QT5AE8oZe8

[Modjeski and Masters @ModjeskiMasters]

A name that shaped our firm, and a legacy that still inspires us today. Happy 142nd birthday, Frank!