FORT WASHINGTON, PA– McMahon Associates, Inc., a transportation engineering and planning firm, is pleased to announce the elevation of Mark A. Roth, P.E. and John R. Wichner, P.E., PTOE to the title of Associate of the firm. This designation is bestowed by the McMahon Board of Directors of the firm in recognition of the overall leadership they have demonstrated, and in expanding and capturing service and firm growth in new geographic markets, while earning respect and continuing to build relationships with clients and peers.

Associates’ names are synonymous with McMahon Associates, Inc. and each of their names will be proudly displayed on the letterhead as key members of the firm, as an indication and recognition of our next generation of top leadership. Associates are viewed by the Board as key contributors and partners in our present and future success, individuals who effectively advocate and lead company programs and policies, and who have the presence and leadership capabilities that inspire and instill confidence in our staff and clients.

Mark A. Roth, P.E. is the General Manager of McMahon’s Philadelphia, PA office. Since establishing the office in 2016, Mark has led its growth through client and teaming partner development, as well as talent recruitment which has already required a doubling of the downtown location office space. Mark has more than 25 years of transportation engineering and planning experience, 22 of which are with McMahon, for municipalities, states and private entities leading small to very large projects providing expertise in evaluating present and future traffic patterns, congestion management strategies, corridor development improvements and regional highway network modeling, to name a few. Prior to opening the Philadelphia location, Mark was the Office Lead for the firm’s New Jersey office, based in Yardville, NJ.

John R. Wichner, P.E., PTOE is the Office Lead for McMahon’s Lehigh Valley Region, based in Allentown, PA. John was instrumental in establishing the firm’s Lehigh Valley office in 2013 and has managed several key projects in northeast and eastern PA, including the PPL Center Event Management Plan for the City of Allentown which included the addition of traffic responsive equipment at 35 signalized intersections and the creation of a 24-hour Traffic Management Center for the city. Regionally, John focuses on private sector and municipal transportation projects, multimodal transportation projects, and preparation and/or review of the transportation elements of land development applications for uses such as industrial, hospitals, educational facilities, commercial/retail users, residential/office complexes, and infill redevelopment projects. He also champions the Mid-Atlantic Region’s business development efforts in the private sector.  John’s contributions to the region earned him the Lehigh Valley Business 40 Under 40 recognition in 2015.

“It is always a great pleasure to witness the evolution of our talented staff as they advance into senior leadership roles within our firm,” said Joseph DeSantis, P.E., PTOE, President and CEO of McMahon Associates, Inc. “Within their office geographic areas, Mark and John have been instrumental in the development of business, establishment of strong client and partner relationships, and solidifying our presence in the local community.  Mark and John also play a key role in the success of the Mid-Atlantic region by leading important firm programs such as our regional planning sessions, business development activities, and staff mentoring initiatives. Our Associates are essential leaders at McMahon, and they represent the future of our firm. The Board and I are pleased to designate Mark and John as new Associates, as they continue to contribute to our broader growth and success.”

About McMahon Associates, Inc.

Since 1976, McMahon Associates, Inc. has specialized in delivering innovative engineering, planning, design and technological transportation solutions to our clients. We have built trusting 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 along the East Coast, McMahon has the talent, ability and expertise to address any transportation assignment. For more information visit