Team

Robert S Rosenfelt, P.E. President
brosenfelt@cmrengineers.com

Mr. Rosenfelt is a 1974 graduate of the University of Pennsylvania with both a Bachelor and Masters of Science degrees in Civil Engineering. He is a registered Professional Engineer in Maryland and Delaware. He has over 30 years experience in planning and design of site development projects, sewer and water treatment facilities, public utility systems, stormwater management, and hydraulic and flood control facilities. Responsibilities include project management, civil and sanitary engineering, environmental analysis and administration. He has been with the firm since 1985.

Richard E. Matz, P.E., Vice President
dmatz@cmrengineers.com

Mr. Matz is a 1973 graduate of the University of Colorado with a Bachelor of Science in Civil Engineering. He is a registered Professional in Maryland. Mr. Matz has over 40 years experience in land development engineering. Besides his experience in land development engineering, Mr. Matz has experience in construction management, solid waste management, finance, scheduling and surveying. He has managed or supervised the design and processing of hundreds of large and small residential and commercial land development projects throughout his career. He has been with the firm since 1992.

Stuart L. Darley, Vice President
sdarley@cmrengineers.com

Mr. Darley is a 1985 graduate of Frostburg State University with a Bachelor of Science in Land Reclamation. He has extensive experience in site design, hydrology studies, hydraulics, stormwater management, sediment control and utility design in commercial, residential and institutional projects. He has been with the firm since 1988 and a partner since 1994.

Aron Katz, Design Engineer
akatz@cmrengineers.com

Mr. Katz prepares construction documents and calculations for institutional and private projects including grading plans, erosion and sediment control plans, stormwater management plans, onsite storm drain plans and public improvement plans. Calculations include stormwater management (ESD to the MEP/BMP design, TR-55, TR-20, HY-8), storm drain design, storm drain studies and floodplain studies. Responsibilities also include review of shop drawings, construction quantities takeoffs, and required opinions of probable construction costs. Mr. Katz has a Bachelor of Science in Civil Engineering from a EAC/ABET accredited program.

Dawn R. Clamp, Project Engineer
dclamp@cmrengineers.com

Mrs. Clamp is a graduate of Frostburg State University with a 1999 Bachelor of Science in Environmental Analysis and Planning. She has extensive experience in site design, hydrology studies, hydraulics, stormwater management (including the recently adopted City Environmental Site Design requirements), grading, sediment control and utility design in commercial and residential projects with a focus in Baltimore City. Mrs. Clamp is very familiar with the Public Improvement Plan and the ESC/SWM review processes with many major projects successfully completed. She has been in the firm since 1999.

Kenneth J. Colbert, P.E., Engineering Consultant
kcolbert@cmrengineers.com

Mr. Colbert is a 1968 graduate of the University of Missouri with a Bachelor of Science in Civil Engineering. He is a registered Professional Engineer in Maryland. He has over 40 years experience in commercial site engineering and rehabilitation from large shopping centers to small convenience stores. He has prepared and managed construction projects throughout the region. Responsibilities include project coordination, project design, assisting in bid process, review of studies, reports and construction documents and quality control.

Kenneth Green
kgreen@cmrengineers.com

Mr. Green has over 30 years of experience in the Design and Management of Land Development, Transportation and Utility projects in the Baltimore metropolitan area. This includes oversight of Design Team members and coordination with private and municipal clients and jurisdictional review agencies. Mr. Green has extensive experience in site design, grading, erosion control and stormwater management plans as well as water, sanitary sewer, storm drain and conduit systems for both private land development and public infrastructure projects. Responsibilities also include preparation of construction specifications, construction cost estimates and processing of plans through the various review agencies.

Aliza Hertzmark
ahertzmark@cmrengineers.com

Mrs. Hertzmark graduated summa cum laude from Tufts University with a Bachelor of Science in Engineering in 2009. Since she began working at CMR in 2011, her responsibilities have included project management, research, zoning and site analysis, and site design, including stormwater management, erosion and sediment control, and utility design. Her experience with stormwater management includes several green roof designs, (1212 South East Avenue, Riverside Wharf – 1420 Key Highway, Gaudenzia Park Heights), micro-bioretention facilities (Renaissance gardens), rainwater harvesting (Gaudenzia), rain barrels (Ward Street Row), and rain gardens.

Lisa K. Junker, Project Manager
ljunker@cmrengineers.com

Ms. Junker is a 1996 graduate of University of Baltimore with a Master’s Degree in Business Administration. She previously owned Datum Services, prior to its acquisition by Colbert Matz Rosenfelt, Inc. in 2008. She has successfully provided consulting and processing services for developers, architects, engineers, land planners, contractors and property owners since 2001. Ms. Junker is the Past Chairwoman of University of Baltimore’s Real Estate and Economic Advisory Board, and serviced on the Board as a Board Member from 2009-2013. She is a current Board Member of the Home Builders Association of Maryland, and is the Associate Vice President of its Executive Committee.

Kevin Larrowe, P.E.
klarrowe@cmrengineers.com

Mr. Larrowe, a registered civil engineer since 1978, supervises and prepares construction documents and calculations for institutional and private projects including site design to conform to universal access (ADA), LEED sustainability and environmental standards. As a Qualified MDE ESC and SWM reviewer since 1995, Mr. Larrowe has developed site and stormwater management plans using Best Management Practices and Environmental Site Design to the Maximum Extent Practicable (ESDMEP). Responsibilities also include construction specifications, permit processing, construction quantities takeoffs and preliminary construction cost estimates.

Carla J. Ryon, Planning Consultant
cryon@cmrengineers.com

Mrs. Ryon earned her Master’s Degree in City and Regional Planning from Morgan State University in 2004. She was named the 2004 Planning Graduate Student of the Year at Morgan State University. Before working at Colbert Matz Rosenfelt, Inc. (CMR), Mrs. Ryon worked at a Baltimore City based Community Development Corporation. Her responsibilities at CMR include project management, site analysis, zoning and feasibility analysis, and research. She has been in the firm since 2007.

Thomas N. Woolfolk, L.A., Senior Designer/Landscape Architect
twoolfolk@cmrengineers.com

Mr. Woolfolk has practiced civil engineering since 1967. He has been a registered Landscape Architect in Maryland since 1989.

He has designed over 300 SWM Facilities of all types, both above ground and underground and has extensive knowledge of the latest MDE and Baltimore City regulations and policies, in particular those regulations embodied in Chapter 5 of the 2007 MDE SWM Supplement and subsequent publications issued by MDE and Baltimore City. In addition, Mr. Woolfolk designs site improvements, grading, storm drains, water supply and sanitary sewer systems and sediment control as well as landscaping.