Officers & Directors


Franz (Alex) Ollerman, P.E., C.M. 859-7090

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.

Vice President

Randy Brown, P.E. 462-9187

Randy was the ASCE Treasurer since 2015-2017 and is currently the Vice President. Previously, he served as Publicity Chair. 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.


Kristin Barmoy, P.E. 857-0210

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 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 and her husband, Doug, currently run Hanover Land Services, Inc., a WBE/DBE Surveying and Civil Engineering firm based in Westminster, MD and Hanover, PA. Kristin has been involved with ASCE since serving as the Treasurer of the student chapter at Virginia Tech. Kristin, Doug and their youngest child (a rising high school senior) live in Westminster.


Rosanna LaPlante, P.E.

rlaplante@ascemdorg(410) 396-0732

Rosanna is a Section Chief for Baltimore City, Department of Public works. Rosanna leads the Department of Public Works Plans Review and Inspections Section, overseeing reviews and inspections of construction project throughout the City for stormwater management, erosion and sediment control and utility connection. She has experience in Civil and Environmental Engineering, working for 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

Michael A. Perrotta, P.E., AICP 589-2433

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.

Past President & Director

Carrie Nicholson, P.E. 513-6354

Carrie has served as President, Vice-President, Secretary, a Director, a YM co-chair, and newsletter editor for the MD Section. She helped lead the Section’s effort to produce the first report card grading Maryland’s infrastructure and begin the Section’s pre-college outreach committee. She is the MD Geo-Institute's chair and on the State Government Relations ASCE National committee. Carrie is also involved in ASHE, MD Engineering Challenges, Red Hats with Habitat for Humanity of the Chesapeake, crew chiefs with the Gunpowder Valley Conservancy for which she is also assistant treasurer, and Bridges to Prosperity (B2P). Carrie was recipient of the 2011 ASCE MD Section Young Engineer of the Year award. Carrie is a geotechnical engineer and Maryland business developer for Navarro & Wright Consulting Engineers. She earned her bachelor’s degree in civil engineering from Lehigh University, her master’s degree in civil engineering from the University of Maryland, and her M.B.A. from Norwich University.


Kelly Ambrose, P.E. 528-2263

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.


Rachel H. Sangre, Ph.D., P.E. 516-7138

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.