about

Staff Profiles

Stephen A. Dlugos, P.E.
Principal

Stephen A. Johnston, Ph.D.
Principal

Christina C. Kelley
Office Manager

Christopher J. Kelley, LEED Green Assoc.
Engineering Associate & Historic Preservation Specialist

John C. Simon, P.E.
Senior Engineer

G. Douglas White, P.E., R.P.A.
Principal

 

 

 

Group photo by Kathryn A. Brown

Staff photo
301 North Fairfax Street, Suite 108    Alexandria, VA 22314    703.548.3403    info@tdlengineers.com