Officers & Directors


Randy Brown, P.E.


Randy was the ASCE Treasurer since 2015-2017, Vice Presdent in 2018 and is currently the President. Randy has been with RK&K since 2012 as their Sr. Manager for Toll Facilities. Previously, he worked for the Maryland Transportation Authority, reaching the position of Deputy Executive Secretary, and the State Highway Administration, reaching the position of Assistant District 3 Engineer, with a total of 34 years with the State of Maryland. He received his Bachelor of Civil Engineering from the University of Delaware and a Master of Science Degree in Business Operations from the University of Baltimore.

Vice President

Kristin Barmoy, P.E.

Hanover Land Services,

Kristin earned a Bachelor of Science degree in Civil Engineering from Virginia Tech (go Hokies!) and a Master’s in Business Administration from Loyola college. She moved to the Baltimore area a year after graduating from VT to take a job as a Hydrology/Hydraulics engineer with STV/Lyons and Associates and has built her engineering career in this area. She also served as the Bureau Chief of Stormwater Management and Sediment Control for Carroll County before forming her engineering company. Kristin is currently President of Hanover Land Services, Inc., a WBE/DBE Surveying and Civil Engineering firm based in Westminster, MD and Hanover, PA. Kristin is currently serving as the MD Section ASCE Vice President, previously served the MD Section as Secretary and has been involved with ASCE since serving as the Treasurer of the student chapter at Virginia Tech. Kristin, her husband Doug, and their youngest son live in Westminster.


Kelly Ambrose, P.E.

Kelly is a structural engineer with the bridge group at Whitman, Requardt and Associates, LLP (WRA). Kelly has been an active member in the Maryland Section of ASCE since 2012. She has served as the co-chair of the Younger Member Group for the past two years and was the Younger Member appointed Director on the Board in 2015-2016. Kelly earned her bachelor’s and master’s degrees in civil engineering from the University of Delaware where she was an active member of the university’s chapter of Engineers Without Borders traveling to Guatemala to assist with a bridge project.


Rosanna LaPlante, P.E.

Rosanna is a Division Manager for WSSC in Laurel, MD. Rosanna leads the Engineering and Environmental Services Division, overseeing land services, Civil engineering support, contract services, GIS and engineering records, mechanical and electrical engineering support, environmental programs, and environmental services. She has experience in Civil and Environmental Engineering, working for municipalities and both large and small engineering companies before starting employment in the public sector with the City of Baltimore. Rosanna is active in engineering organizations and has received multiple awards for her work with these organizations. She previously has served on the ASCE- MD board as a Director and Chair for the Chesapeake Bay Environmental and Water Resources Institute (EWRI) chapter, and on numerous committees for EWRI on a national level. She has also served on the Board of Directors for the Society of Military Engineers and currently serves on the Board of Directors for the Engineering Society of Baltimore.

Past President & Director

Franz (Alex) Ollerman, P.E., C.M.

Maryland Aviation

Alex is the Manager of Landside Planning for the Maryland Aviation Administration (MAA). He began his career as an airfield pavement engineer for Eckrose/Green in Madison, WI. He later moved to Law Engineering in Beltsville, MD, working on projects for MAA, PANYNJ, and MDSHA OMT. Alex started with the MAA in 2002 and has worked in both its engineering and planning departments. He has 20 years of experience working for airports around the globe. Alex earned his bachelor’s and master’s degrees in Civil Engineering at North Dakota State University. He has been active in ASCE and TRB, lately serving a two-year term as Secretary and as Vice President for the Maryland Section of ASCE.

Past President & Director

Michael A. Perrotta, P.E., AICP


Mike is Century’s Vice President in charge of Transportation Planning and Preliminary Engineering. He has over 22 years of experience in multimodal transportation improvement projects, infrastructure expansion, development projects and conducting environmental analysis, environmental documentation and public involvement. He has served as a contract/project manager for numerous high-profile infrastructure improvement projects for clients throughout the Mid-Atlantic region, with professional engineering licenses in six states. For the Maryland Section of ASCE, Mike has served as President, Vice President, Treasurer, Director, and Programs Chair. Mike earned a bachelor’s degree in civil engineering from Clemson University and a master’s degree in civil and environmental engineering from the University of Maryland.


Rachel H. Sangree, Ph.D., P.E.

Johns Hopkins

Rachel is a Lecturer in the Department of Civil Engineering at Johns Hopkins University, where she teaches undergraduate courses and manages the part-time master’s degree program in Civil Engineering through JHU’s Engineering for Professionals. She is also the faculty advisor to the JHU Student Chapter of ASCE. Rachel earned BS and MS degrees in Civil Engineering from Bucknell University and a Ph.D. in Civil Engineering from Johns Hopkins. In addition to her teaching experience, Rachel worked for three years as a design engineer in the bridge design group at Whitman, Requardt, and Associates in Baltimore.


Charles W. W. Mitchell, III, PE


Charlie joined RK&K in 2014 and is currently a Senior Project Engineer in the Site Development group. He has experience designing and managing civil site and transportation projects for private developers, higher education, municipal and institutional facilities. Prior to RK&K he was a project manager for the Federal Government.

Charlie received Honors Bachelor of Civil Engineering and Master of Civil Engineering degrees from the University of Delaware. He was selected as the Young Civil Engineer of the Year by ASCE Maryland in 2017. Charlie is a Maryland PE and also certified as an Emergency Medical Technician and a Rescue Diver.

Charlie has been active in the ASCE Maryland section since 2015 primarily as the Digital Technology Chairman. He started in ASCE as a member of the University of Delaware Student Chapter in 2005 .