Steven Arthur, Associate, Senior Project Manager

WDP Office: Manassas Steven is a construction professional with 34 years of experience in residential, commercial, institutional, and industrial building projects. He comes to us most recently from Terracon, where he was a Senior Facilities Professional providing technical oversight and delivery of building envelope-related services.  Prior to Terracon, Steven held positions with DMY Capitol as […]

Richard Freewalt, R.A., LEED AP, Associate, Senior Architect

WDP Office: Manassas Rich joined WDP in July 2021, bringing 31 years of extensive on-site and collaborative experience as an Architect, Project Manager, and Team Lead with a focus on building envelope/enclosure consulting, commissioning, and quality assurance (QA). He also has varied building design, construction, and investigative experience on large government and private organization projects. […]

Timothy A. Apisa, LEED AP, Senior Project Manager, Blacksburg Division Manager

WDP Office: Blacksburg  Tim has been working in the architecture and engineering industry on large commercial construction projects since 2004. His expertise includes all aspects of construction administration, site inspections and analysis for architectural, structural, mechanical, and electrical components of a building. “The construction industry is such a dynamic environment, that there is no place for […]

Byoung-Jun (BJ) Lee, Ph.D., P.E., S.E., Associate, Senior Structural Engineer

WDP Office: Manassas  BJ is a structural engineer with expertise in materials, analysis, design, construction, and repair with special emphasis on structural concrete, steel, masonry, wood, and other exterior building envelope systems. “It is fascinating to understand how the building materials behave and fail. I have been an eye-witness to numerous structural issues as well as […]

Andrew W. Wagner, P.E., Associate, Central Virginia Division Manager

WDP Office: Charlottesville Andrew specializes in evaluating and repairing building enclosures and facades and has completed projects in multiple industry sectors including Healthcare, Higher Education, K-12, and historic preservation.  He is active in the development of new industry standards through ASTM and is the current Task Group Chair for ASTM E241, “Standard Guide for Limiting […]

Benjamin Townsend, P.E., Senior Engineer, New York Division Manager

WDP Office: New York Ben’s expertise centers around forensic structural evaluation, building enclosure consulting and building enclosure commissioning (BECx). He is actively involved in developing standards and presenting at industry conferences on topics related to enclosure performance verification. His knowledge and skill in evaluation of facades and building enclosures has allowed him to lead successful […]

John M. Grill, P.E., Senior Associate, Manassas Headquarters Division Manager

WDP Office: Manassas John’s expertise in non-destructive evaluation and the condition assessment and repair of concrete structures has allowed him to lead projects involving tunnels, bridges, power plants, high rise structures, and historic buildings. John has been with WDP for over 20 years and is active with the International Concrete Repair Institute, serving on Committee […]

Robert J. Niber, P.E., Associate Principal, Geotechnical Engineering and T&I Division Manager

WDP Office: Manassas With over 30 years of practical experience for a diverse portfolio of public and private sector projects, Rob’s geotechnical expertise has provided innovative, cost-efficient solutions for foundations and slabs, retaining systems and slopes, utilities, pavements, SWM/BMP (stormwater management/best management practices) facilities, and earthwork quality control guidelines and recommendations. He routinely performs design-phase […]

Rex A. Cyphers, P.E., Principal, Chief Operating Officer

WDP Office: Charlottesville  Rex specializes in the design and repair of masonry structures, historic preservation, and nondestructive testing. He performs forensic field and laboratory investigations, façade and building envelope investigations, structural inspection/analysis and design, architectural retrofit and repair, roofing and waterproofing investigations, and development of design documents, and repair recommendations. Additionally, as a Principal and the Chief […]

J. Eric Peterson, P.E., Principal, Chief Executive Officer

Eric leads various structural, material, and architectural engineering activities, specializing in building envelope and façade failures, nondestructive testing, and design and repair of concrete and masonry structures. As Chief Executive Officer, he is also responsible for executing WDP’s Strategic Business Plan and communicating the vision for the firm’s future direction and growth. “Being at the forefront of […]