Sam Tignor, PE

Project Transportation Engineer
E-mail: [email protected]
Phone: 202.296.8631

Sam, who works primarily out of our Washington DC office, has over 12 years of experience working in private sector on traffic and transportation projects. Sam is the lead design engineer for the DC and Alexandria offices and has expertise in traffic signal design, roadway signing and striping plans, traffic control/maintenance of traffic plans, curbside management, loading analysis, field data collection and functional parking lot and garage design. As a bike commuter himself, Sam takes great interest in the design and implementation of bicycle and pedestrian facilities throughout DC and northern Virginia. His market practice includes the District of Columbia, Arlington County and the City of Alexandria in Virginia, and Montgomery County, Maryland. Sam also has significant experience working on VDOT projects throughout the state of Virginia.

Sam is a member of the Society of Military Engineers and prior to his career as a transportation engineer, he served in the United States Army Infantry for over eight years. He remains active in several veteran organizations.

Sam is a northern Virginia native and resides in Friendship Heights with his wife and daughter. Outside of work he is an avid runner, soccer player, an enthusiastic DC sports fan and wishes he could live at the beach! He can usually be found wandering around AU Park with his canine best friend, Rocket.


Virginia Polytechnic Institute and State University
Master of Science, Civil / Transportation Engineering

Excelsior College
Bachelor of Science


Professional Engineer – Maryland