About Us

"From a single-practitioner firm to a well-rounded team of professionals in offices located through the East Coast, McMahon Associates is built on a history of being our clients' trusted advisor on transportation & data management challenges. Innovation, integrity and cost-effectiveness are hallmarks of every McMahon solution." 

Joe McMahon

Since 1976, McMahon Associates has specialized in delivering innovative engineering, planning, design, and technology transportation solutions to our clients. We have built trusted and lasting relationships by satisfying, and often surpassing, the needs of both governmental and private sector clients. We provide services for transportation projects from planning, to design and permitting, through construction. 

With more than 150 dedicated professionals in 15 offices along the East Coast, McMahon has the talent, ability and expertise to address any transportation assignment. 

The McMahon Timeline

Want to See More?

Download Our Overview Brochure or View Our Video