Carpenter Marty Transportation

Carpenter Marty Transportation At CM, we are experts in bridge, roadway, traffic, survey, and right-of-way. Our company was founded to raise the standards in transportation engineering.

At Carpenter Marty Transportation (CM), our success is driven by employees that strive for excellence. We focus on exceeding client expectations, not making a profit. By keeping this as our core value, we have established and maintained strong working relationships with local municipalities, counties, and ODOT district offices over the last eighteen years. Our Ohio-based team has extensive experience with local and state standards and are available to respond to client needs promptly. We are experts in bridge, roadway, traffic, survey, and right-of-way design services.

Something exciting is taking shape for OTEC 2026…We can’t wait to reveal the full design and see everyone at the upcomin...
10/14/2026

Something exciting is taking shape for OTEC 2026…

We can’t wait to reveal the full design and see everyone at the upcoming Ohio Transportation Engineering Conference.

October is Pedestrian Safety Month!Driving slower, putting distractions away, and checking for pedestrians before turnin...
10/08/2026

October is Pedestrian Safety Month!

Driving slower, putting distractions away, and checking for pedestrians before turning are great ways for drivers to approach pedestrian safety.

People walking can stay alert, use crosswalks when available, and watch for turning vehicles.

Let’s work together to make every crossing safer.

For more information visit trafficsafetymarketing.gov

🚗 There’s engineering behind every curve!Many roadway curves have a raised outside edge a design feature called superele...
10/02/2026

🚗 There’s engineering behind every curve!

Many roadway curves have a raised outside edge a design feature called superelevation that helps vehicles navigate the turn safely. It’s the same principle used in banked racetrack turns, built into your everyday commute!

CM team members hit the lanes for our latest Thumbs Up Thursday, enjoying some friendly competition and time together ou...
10/01/2026

CM team members hit the lanes for our latest Thumbs Up Thursday, enjoying some friendly competition and time together outside the office. Thanks to everyone who joined in and made it a great outing!

09/25/2026

The US is now home to more than 11,000 roundabouts and counting! 🚗

There’s a good reason they keep popping up.

Roundabouts are an FHWA Proven Safety Countermeasure and have been shown to reduce fatal and injury crashes by up to 82% at certain types of intersections.

By slowing traffic and reducing conflict points, roundabouts can help create safer, more efficient intersections for everyone.

Check out the drone footage of a roundabout designed by CM - The Columbia Road & Davis Road Roundabout, located in Warren County.

🔄 It’s National Roundabouts Week!Roundabouts are an important tool for improving roadway safety. Intersections account f...
09/21/2026

🔄 It’s National Roundabouts Week!

Roundabouts are an important tool for improving roadway safety. Intersections account for roughly one-quarter of traffic fatalities and about half of all traffic injuries in the United States, making safer intersection design a critical part of creating safer roads for everyone.

At CM, our transportation professionals have helped communities evaluate, design, and implement roundabouts. We’re proud to put thoughtful engineering and safety analysis to work creating intersections that better serve drivers, pedestrians, bicyclists, and the communities that rely on them every day.

This National Roundabouts Week, we’re celebrating the engineering behind safer intersections, and the people and communities they’re designed to protect.

Hey, Flyers! Carpenter Marty is excited to be at the University of Dayton Fall Career Fair TODAY!UD RecPlex1:00–5:00 PMI...
09/14/2026

Hey, Flyers!

Carpenter Marty is excited to be at the University of Dayton Fall Career Fair TODAY!

UD RecPlex
1:00–5:00 PM

If you’re a civil engineering student interested in starting your career with a great team, stop by our booth! We’d love to meet you and share some of the exciting opportunities available at CM.

See you there! 👋

Hey, civil engineering students!Fall career fair season is here, and we’re excited to share our official lineup! Come me...
09/11/2026

Hey, civil engineering students!

Fall career fair season is here, and we’re excited to share our official lineup!

Come meet our team, learn more about CM, explore our current career opportunities, and get the inside scoop on what it’s like to build a career with us.

We’re looking forward to meeting the next generation of civil engineers and making some great connections along the way.

Stop by, say hello, and let’s talk about your future!

Meet Patrick Park, Carpenter Marty's Director of Roadway Engineering, West Virginia.Patrick brings extensive bridge insp...
08/31/2026

Meet Patrick Park, Carpenter Marty's Director of Roadway Engineering, West Virginia.

Patrick brings extensive bridge inspection and design expertise to CM, combining technical knowledge with a genuine commitment to serving others and strengthening communities.

Get to know Patrick and discover the experiences that have shaped his career.

https://www.cmtran.com/employee-highlight-patrick-park

Today, we’re celebrating the four-legged friends who bring so much joy to our CM employees’ lives.Happy National Dog Day...
08/26/2026

Today, we’re celebrating the four-legged friends who bring so much joy to our CM employees’ lives.

Happy National Dog Day!

Address

6612 Singletree Drive
Columbus, OH
43229

Opening Hours

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

Telephone

(614) 656-2424

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