McMahon offers a comprehensive array of transportation and traffic engineering services.  We develop solutions that address the technical aspects of a project, while remaining sensitive to the environmental, safety, and economic issues which are of equal importance in today’s society.  Our professionals have extensive expertise in urban and rural highway design, traffic studies, and bridge design and construction.  McMahon works successfully on transportation projects through all stages, including public involvement, agency coordination, permitting, plat preparation, design, and construction administration.