GMB - Key Persons
Job Titles:
- Senior Vice President, Structural Engineering Group Leader
Reggie Mariner joined the firm in August of 1992. He is a Senior Vice President and Group Leader for Structural/Marine Engineering based in our Salisbury office. Prior to joining the firm, Reggie gained hands-on construction experience on a variety of projects including multi-story hotels, condominiums, and light commercial buildings. He has continued to expand his expertise in structural engineering at GMB where he has been in charge of structural design for numerous projects. Reggie has performed condition surveys of concrete structures, as well as design and specify repairs per American Concrete Institute standards.
Reggie has a Bachelor of Science degree in Civil Engineering from Clemson University and a Bachelor of Science degree in Computer Science from Charleston Southern University. He holds professional registrations in Maryland, Delaware, Virginia, and Pennsylvania and a national NCEES registration.
Job Titles:
- Vice President, Sr. Project Manager - East Region Civil / Municipal Group
Andrew Lyons joined the firm in June 2003. He is a Vice President and Sr. Project Manager with the East Region Civil / Municipal Group in the Seaford Office. Andrew manages the Seaford office operations. He has served as Project Engineer and Project Manager on a variety of projects including studies, design, contract administration, and inspection. Engineering projects include municipal street and utility restoration design, ADA design, sewer & water systems, wastewater treatment, storm drainage and storm sewers design, site design, and highway entrance design. He is also experienced in construction inspection, having served as Resident Project Representative (RPR) for upgrades at Pocomoke City, Maryland's wastewater treatment plant. Andrew serves the Town of Millville as Town Engineer, assisting the Town with a wide variety of projects. He is also working with the Town of Millsboro and the Town of South Bethany on street improvement projects.
Andrew has a Bachelor of Civil Engineering degree from the University of Delaware. He holds professional registrations in Maryland and Delaware.
Job Titles:
- Associate / Project Manager - East Region Civil / Municipal Group
Ben Hearn began interning with GMB in 2014 and joined our full-time staff upon his 2016 graduation from the University of Delaware with a Bachelor of Science degree in Civil Engineering. Ben was promoted to Associate in 2023. As a Project Manager in our Seaford and Lewes offices, Ben's primary focus is on municipal engineering, with experience in projects such as asset management, I/I analysis, wastewater collection and transmission facilities, water main distribution systems, street improvements, and site development. His main clients include the Cities of Seaford and Lewes, Delaware, and he has also served public and private clients throughout Sussex County and in some parts of Maryland.
Ben was heavily involved as the Design Engineer on the Gills Neck Road Wastewater Flow Diversion project, which won the 2019 Engineering Excellence Grand Conceptor Award from the American Council of Engineering Companies (ACEC) Delaware.
Ben is actively involved in his native Seaford, Delaware community, having served the Seaford Volunteer Fire Department (SVFD) for over a decade. In December 2011, he became a Volunteer Firefighter who is called upon for any emergency situation in the SVFD coverage area. He received extensive training to best remedy the emergency at hand. Ben served as Vice President of the SVFD from January 2017 to May 2020.
Job Titles:
- Associate, Coastal Resiliency Group Leader / Team Member since 2019
Brent Jett joined GMB in 2019, bringing over 20 years of professional engineering experience, including extensive project design, planning, and management in both the private and public sectors. He leads GMB's Coastal Resiliency Group and became an Associate of the firm in January 2024. Brent is skilled in local, state, and federal land-use approvals and required processes for environmental approval. He holds a Bachelor of Science degree in Civil Engineering from Virginia Tech.
Prior to joining GMB, Brent served for seven years as Assistant City Engineer for the City of Cambridge, Maryland. He has a distinguished background in stormwater management within areas of minimal elevation change along the coastal regions of Delmarva. This includes infrastructure design, hydrologic analysis and planning, collection system design and analysis, resilient shoreline planning and design, green retrofits of existing grey infrastructure, and rehabilitation of eroded and deteriorated conveyance systems. Brent's experience in public works affords him knowledge and understanding of key project success factors, including budgetary constraints, maintenance capacity, and public engagement.
In addition to being a Professional Engineer licensed in Maryland and Delaware, Brent is also a Certified Floodplain Manager (CPM) and a Certified Climate Change Professional (CC-P). Understanding changing rain intensities, sea level rise, longer periods of heat and drought, along with higher tidal surges allows him to clearly convey project needs while keeping the constraints of public works budgets and capacities in mind. He provides projects that can be managed, maintained, and successful for years to come.
Further, Brent is well-versed in all facets of grant funding for public projects, having been successful with DNR, CBTrust, MDE, NFWF, G3, and various other state and federally-backed grants; in addition to preparing the applications and managing the reporting and close-out of awarded grants. He has recently served on several environmental committees with local and state stakeholders for sustainability concerns throughout the mid-Shore region of Maryland.
Job Titles:
- Director of Business Development
- Project Manager
- Senior Vice President
Charlie O'Donnell joined the firm in June of 1989. He is a Senior Vice President and Director of Business Development. He has served as Project Engineer on a variety of projects, including studies, design, contract administration, and inspection. Engineering projects include sewer & water systems and extensions, wastewater & water treatment systems, storm drainage and storm sewer systems, combined sewer system control plans, site planning and design, municipal street and utility restoration, sediment and erosion control planning, subdivision and industrial park layout & utility design, highway entrance design, lift and pump station design, foundation design, bridge design, and on-site wastewater treatment systems.
Charlie has served as Project Manager on a similar variety of projects, handling such responsibilities as project planning, scheduling, financial planning, team management, quality assurance, project control, and project completion. He has provided consulting engineering services to the City of Lewes and the Lewes Board of Public Works for over a decade. He has extensive experience in funding procurement for municipal projects.
Charlie has a Bachelor of Science degree in Civil Engineering from the University of Delaware and a Master of Business Administration from Wilmington College. He holds professional registrations in Maryland and Delaware.
Job Titles:
- Senior Vice President, East Region Water / Wastewater Group Leader
Chris Derbyshire joined the firm in May 2002. He is a Senior Vice President leading the East Region Water/Wastewater Group based in our Salisbury office. Chris' primary interests are in planning, managing, designing, and constructing water and wastewater treatment facilities. He has a thorough working knowledge of wastewater treatment process technology including Enhanced Nutrient Reduction (ENR). He has served as Project Engineer and Project Manager on a variety of projects, including studies, design, contract administration, and inspection. Engineering projects include sewer & water systems and extensions, storm drainage and storm sewer systems, combined sewer system control plans, site planning and design, subdivision layout & utility design, lift and pump station design, and on-site wastewater treatment systems.
Chris has a Bachelor's and Master of Science degrees in Civil and Environmental Engineering from the University of Maryland. He holds professional registrations in Maryland, Delaware, and Virginia.
Job Titles:
- Vice President, Site / Sustainable Group Leader
Chris Pfeifer joined the firm of George, Miles & Buhr in 2013 as an Engineer in the Site / Sustainable Design Group and was named an Associate in 2020. In 2021, he was promoted to Group Leader, and in 2024 he became a Member/Vice President of the firm. He has served as Project Engineer and Project Manager on a variety of projects with an emphasis on stormwater management, erosion and sediment control, and land development. Chris is proficient with AutoCAD, HydroCAD, HECRAS, PondPack, and Hydraflow Storm Sewers.
Chris holds a Bachelor of Science degree in Civil Engineering from Drexel University. He is a licensed professional engineer in Maryland and Delaware.
Job Titles:
- Senior Vice President, West Region Civil / Municipal Group Leader
Dave Vanderbeek joined George, Miles & Buhr in 2004. He is a Senior Vice President in the firm and currently serves as the Group Leader for the West Region Civil / Municipal Group in the Baltimore office. He has experience in the planning, design, and construction management of water and wastewater treatment, pumping, storage, and utility systems for private clients and Municipal, County, and State agencies. His work has included feasibility studies, preliminary engineering reports, facilities planning, cost-effectiveness studies, alternative analysis reports, design development reports, site development, water system modeling, sanitary sewer system design, water transmission main design, water supply system design and design and rehabilitation of wastewater pumping stations, water booster stations, water storage tanks, and water and wastewater treatment plants.
Dave has a Bachelor of Science degree in Civil Engineering from Geneva College. He holds professional registrations in Maryland and Pennsylvania
Job Titles:
- Construction Services Group Leader
Dean Culver joined the team of GMB in December 2014 and was promoted to Construction Services Group Leader in 2021. He brought over 15 years of prior construction inspection experience to GMB. He has worked on numerous water/wastewater infrastructure projects including treatment facilities, transmission, and distribution systems. Dean is experienced in overseeing the quality of workmanship, following contract documents, and monthly pay estimates. He is also experienced in testing procedures, preparing punch lists, and project close-out procedures. He is responsible for scheduling Construction Services Group resources.
Dean is a Delaware Certified Construction Reviewer (CCR) and a NASSCO Certified Cured-In-Place Pipe (IITCP-CIPP) Inspector.
Projects I've Worked On
Job Titles:
- Senior Vice President, East Region Civil / Municipal Group Leader
Jim Hoageson joined the firm of George, Miles & Buhr in July of 1994. He currently serves as the Group Leader for the East Region Civil / Municipal Group, having previously led the Water / Wastewater Group in the Salisbury office. Jim's primary interests are in planning, managing, designing, and constructing water and wastewater systems. He has a thorough working knowledge of pump station and force main design and has been involved in numerous pump station designs throughout Sussex County, DE and Wicomico County, MD. He has served as Project Manager on a variety of projects, including studies, design, contract administration, and inspection. Engineering projects include wastewater treatment plant design, lift and pump station design, force main evaluations, water treatment plant upgrades and expansions, sewer & water systems and extensions, ground level and elevated water storage tanks, storm drainage and storm sewer systems, and site design. Jim also provides consulting engineering services to the Town of Laurel, Delaware.
Jim has a Bachelor of Science degree in Civil Engineering from Clemson University. He holds professional registrations in Maryland and Delaware.
Jim Willey, Jr. joined the firm in June of 1996 as the Division Leader of Land Development in the Salisbury office. Before becoming President in 2010, he served as a Vice President on the Board of Members for 9 years. As Vice-President, he had responsibility for Site Development operations and oversaw the project managers' training program. Additional responsibilities included the preparation of plans, specifications, and contract administration for various water and wastewater treatment facilities, site design, stormwater management, storm drainage and planning projects. He has over 30 years of consulting engineering experience.
Jim received the 1993 Leonard M. Glass Memorial Award from the Chesapeake Water Pollution Control Association (CWPCA), a Member Association of the 30,000 member parent organization, the Water Environment Federation (WEF). This award is given to a Design Engineer "in recognition of engineering achievements demonstrating the highest degree of merit and ingenuity in the design of a wastewater treatment facility in attaining a high degree of pollution abatement". Jim received the 1993 Award for the design of the Town of Grantsville (Garrett County, Maryland) Wastewater Treatment Plant, a 300,000 gallon per day plant utilizing a submerged biological contactor process, the first such installation in the State of Maryland. Jim and the project were also nominated for the Water Environment Federation's (WEF) 1994 George T. Schroepfer Medal for similar achievements.
Jim has a Bachelor of Science degree in Engineering from Swarthmore College. He holds professional registrations in Maryland, Delaware, and Virginia.
Job Titles:
- Senior Vice President, West Region Director of Operations
Jason Lytle joined GMB's Baltimore office in February 1998 and in 2021 was promoted to Director of Operations for the West Region. His expertise is in planning, managing, designing, and constructing water and wastewater treatment facilities for local, state, and other municipal authorities. He has a thorough working knowledge of wastewater treatment process technology including Enhanced Nutrient Reduction (ENR) and biological nutrient removal (BNR). His projects include feasibility studies, preliminary engineering reports, design development reports, sanitary sewer system design, water booster station design and the design and rehabilitation of water and wastewater treatment plants. He also has experience implementing, designing, and utilizing Geographic Information Systems (GIS) for the planning of water and wastewater facilities, modeling evaluations of existing sanitary sewer collection systems, and other various studies.
Jason has a Bachelor of Science degree in Geo-Environmental Engineering and a Bachelor of Science degree in Environmental Systems Engineering from Pennsylvania State University. He holds professional registrations in Maryland and Pennsylvania.
Job Titles:
- Senior Vice President, West Region Water / Wastewater Group Leader
John Burnsworth joined the firm in December of 1991. He is the Group Leader of Water/Wastewater in the Baltimore office. His responsibilities include preliminary design reports for treatment facilities, capacity analyses, alternatives development, cost analyses, treatment process design, cost estimating, construction drawings and specification writing, permitting, funding and grants assistance, and construction administration services for water and wastewater treatment facilities.
John has over 30 years of experience in treatment facility design for state, county, and other municipal authorities, military facilities, private entities, and K-12 schools. He specializes in the design of advanced treatment facilities for Enhanced Nutrient Removal (ENR) in conjunction with Maryland's Chesapeake Bay Tributary strategy. He has a thorough working knowledge of a wide range of advanced wastewater treatment process technologies including multi-staged activated sludge processes and Membrane Bio-Reactors (MBRs).
John is also experienced in the design of water treatment facilities, water and wastewater pumping facilities, and hydraulic modeling of water distribution systems. His projects typically require the management of multi-disciplinary design teams including various sub-consultant firms.
In addition to his technical abilities, John is also responsible for client management, proposal and contract writing, budgeting, project oversight, and quality management. Prior to becoming an engineering consultant with GMB, John had over 10 years of experience in the construction industry. His hands-on experience and knowledge of construction continue to provide important insight into the planning and design of water and wastewater facilities.
John has a Bachelor of Science degree in Civil Engineering from West Virginia University. He holds professional engineering registrations in Maryland, Pennsylvania, and Virginia.
Job Titles:
- Senior Vice President Emeritus
Judy Schwartz joined the firm in September of 1980 and retired in 2020 after 4 decades of tireless commitment to GMB and the communities we serve. She previously served as Director of Operations and the Group Leader for Civil Engineering in the Seaford office. She has experience in the planning, design, and construction administration of Public Works projects for towns, small cities, and counties in Delaware and the Eastern Shore of Maryland. Her work has included design development, plans and specifications, feasibility studies, preliminary engineering reports, facilities planning, cost-effectiveness studies, grants management, project management, public presentations, and general coordination of engineering projects covering streets, water, wastewater, drainage, and stormwater management. Judy has provided consulting engineering services to the City of Seaford, the Town of Denton, and the Town of Laurel, among others.
Judy has a Bachelor of Science degree in Civil Engineering from the University of Delaware. She holds professional registrations in Maryland and Delaware. In 2008 she acquired her LEED® AP certification, which provides a thorough understanding of green building practices and principles.
Job Titles:
- Senior Vice President, Project Director - East Region Water / Wastewater Group
Katherine McAllister joined GMB's Water/Wastewater Engineering Group in 2005 and was selected as a Vice President in 2016, then promoted to Senior Vice President in 2021. She holds a Bachelor of Science in Environmental Engineering degree from Lehigh University, and a Master in Business Administration (MBA) degree from Salisbury University. Katherine is a Professional Engineer (P.E.) licensed in the State of Maryland.
As a Project Director in the Salisbury office, Katherine has extensive knowledge of municipal public works, funding agency requirements, planning studies, rate structures and grant writing, as well as strong technical skills. She has experience with well and water treatment plant processes, water distribution systems, wastewater treatment processes, sanitary sewer system designs, hydraulic modeling, as well as road designs.
Katherine also chairs GMB Scholarship activities, is a Board Member and Past President of the Fruitland Chamber, a Board member of local Life Crisis Center, and serves as a Member and Past President of the Sunrise Rotary Club in Salisbury. In 2015, Katherine was featured in Water & Wastes Digest magazine in a special section highlighting young water professionals as "Ones to Watch".
Job Titles:
- Senior Vice President / Architecture Group Leader
Morgan Helfrich is a 1999 B. Arch graduate of the Temple University (PA) School of Architecture. Having joined GMB in 2006, she brings over 25 years of diversified experience in the design and administration of complex architectural projects throughout the Mid-Atlantic Region.
Among her varied projects are prototype community health centers serving historically under-served and migrant populations on the Delmarva peninsula, first response and law enforcement facilities for many of GMB's trusted regional municipal partners, and primary, secondary, and higher education facilities throughout the area. She is especially proud of her experience in the design of the Salisbury University Entrepreneurial Center in downtown Salisbury, which teaches and supports the development of fledgling business start-ups. Additionally, Morgan has experience in a wide range of other project types such as single-family and multi-family residential, places of worship, and factory-industrial facility design.
Largely due to her dedication to advancing and sustaining quality architectural design and its importance to smart community growth, GMB was awarded "Best Architectural Firm in Sussex County, DE" by Metropolitan Magazine in 2018. Morgan was also published in the Jan./Feb. 2018 edition of Engineering, Inc. magazine, sharing her experience in renovating the historic Wicomico County courthouse clock tower. In keeping with GMB's firmwide professional mission, Morgan reinforces daily the importance of being a trusted advisor to our clients and empowering our staff to grow and carry that legacy forward.
Morgan holds licenses as a registered architect in Maryland, Delaware, and Virginia and became a LEED Accredited Professional in 2008. She is also certified by the National Council of Architectural Registration Boards and assists several of our municipal clients with building permit review services.
Job Titles:
- Executive Vice President, East Region Director of Engineering
Peter Bozick joined the firm in December of 1974. He is the Director of Engineering for the East Region. His responsibilities have included the preparation of plans, specifications, and contract administration for various wastewater collection and treatment facilities that use conventional as well as advanced treatment technologies. His educational background and expertise include the areas of ocean engineering, biosolids treatment/disposal, as well as spray irrigation land treatment. Peter has written numerous reports and studies including EPA Wastewater Facilities Plans, Environmental Assessments, Cost-Effectiveness Studies, Effluent and Sludge Disposal Analysis, Infiltration/Inflow Analysis, Operation and Maintenance Manuals, User Charge Systems, Feasibility Studies and Sewer Use Regulations. Peter has worked with a variety of federal and state funding agencies on projects including the EPA Construction Grants Program, the EPA Revolving Loan Program, Farmers Home Administration, Rural Economic and Community Development and HUD Community Development Block Grants.
Peter has a Bachelor of Science degree in Civil Engineering from Duke University and a Master of Science degree in Sanitary Engineering from the University of Maine. He holds professional registrations in Maryland, Delaware, and Virginia.
Job Titles:
- Senior Vice President, Project Director, Structural Group
- Senior Vice President, Project Director, Structural Group / Team Member since 2001
Roland Holland joined GMB in June 2001. He is a Senior Vice President and Project Director with the Structural Group in the Salisbury office. His responsibilities include planning, design, and construction administration of structural engineering projects. He has a thorough working knowledge of wood, steel, masonry, and concrete building structures for commercial, residential, institutional, and municipal projects. He has significant experience in post-tension concrete design for multi-family structures.
Roland has a Bachelor of Science degree in Urban Systems Engineering from George Mason University and a Master's degree in Civil Engineering from the University of Virginia. While at the University of Virginia he studied structural engineering and researched the effects of damage on FRP structural composites. He holds professional registrations in Maryland, Delaware, and Virginia, as well as a national NCEES registration.
Steve Marsh joined the firm of George, Miles & Buhr in August of 1994 and became East Region Director of Operations in 2021. He has served as a Project Engineer, Project Manager, and Project Director on a variety of projects including studies, design, and contract administration. Engineering projects include storm sewer and stormwater management studies and design, sanitary sewer systems, and wastewater treatment. Hydraulic and hydrologic modeling capabilities include TR-55, TR-20, HEC-RAS, and Storm-CADD.
Steve has a Bachelor of Science in Civil Engineering and a Master of Science in Civil Engineering from the University of Virginia, with a concentration in hydrology and stormwater management. He also completed postgraduate coursework at Virginia Tech in the analysis of water resource systems and Old Dominion Univerity in Coastal Engineering.
Steve holds professional registrations in Maryland, Delaware, and Virginia. In 2008 he acquired his LEED® AP certification. In 2012 he became a Certified Professional in Storm Water Quality (CPSWQ). He is a frequent guest lecturer at Salisbury University and Morgan State University.
Job Titles:
- Associate, Project Manager - East Region Civil / Municipal Group
Vince Luciani has over 22 years of design and construction management experience in both the environmental and municipal engineering fields. His experience includes large public works including road construction/improvement, water and sewer infrastructure, wastewater treatment facilities, athletic complexes, traffic signalization, solid waste landfill facilities, remedial investigations, feasibility studies, remedial design, hazardous waste remediation, and subdivision development.
Vince has been employed by GMB since 2006. In his time with GMB, he has been involved in the design and construction administration of public works projects for towns and small cities in Delaware and the Eastern Shore of Maryland. His work has included design development, plans and specifications, preliminary engineering reports, project management, and general coordination of engineering projects covering streets, water, and wastewater.
In his previous employment, Vince has acted as a consultant to various towns and counties in NJ. In that role, he has been involved in numerous street and utility projects and subdivision development projects. His experience included planning, design, cost estimating, bidding, and construction management.
Projects I've Worked On
On August 5, 2022, GMB lost a pillar of our firm when W. Brice Foxwell, P.E. passed away. Brice was an instrumental force at GMB for over 35 years, beginning as a college intern and progressing to Senior Vice President and West Region Director of Operations. His impact on our staff, our clients, and the communities we serve is immeasurable.
Brice began his professional career with GMB's Salisbury office in 1984, running blueprints as a summer intern. He took a full-time position in 1988 after graduating Magna Cum Laude with a Bachelor of Science degree in Civil Engineering from Old Dominion University and went on to earn his professional engineering license in 1997. He was promoted to Senior Vice President in 2001 and served as the West Region Director of Operations until retiring from ownership in December 2021. He most recently held the title of Senior Vice President Emeritus, West Region Sr. Project Director.
Job Titles:
- Vice President, Project Manager - West Region Water / Wastewater Group
Mark Gardocky joined GMB in December 1994. He is a Project Manager with the Water/Wastewater Group in the Baltimore Office. His projects include sewer collection system design, water distribution system design, wastewater pumping station design, and related tasks. Mark also has experience with evaluating and assessing existing sanitary sewer collection systems including flow metering, Sewer System Evaluation Surveys (SSES), Infiltration and Inflow (I&I) studies, and development of Capacity, Management, Operation & Maintenance (CMOM) plans. He has experience managing flow metering programs and identifying and assessing Infiltration and Inflow (I&I) components plus developing wastewater flow inputs for hydraulic modeling.
Mark has a Bachelor of Science degree in Engineering from Geneva College. He holds professional registrations in Maryland and Pennsylvania.