Since 1976, McMahon Associates, Inc. has specialized in delivering innovative engineering, planning, design and transportation technology 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 200 dedicated professionals in 15 offices throughout the East Coast, McMahon has the talent, ability and expertise to address any transportation assignment.