Our Staff
- Rhett Whitlock, Ph.D., P.E.
- Gerald A. Dalrymple, P.E.
- Randall W. Poston, Ph.D., P.E., S.E.
- J. Eric Peterson, P.E.
- Robert F. Scheller, P.E.
- Robert J. Niber, P.E.
- Keith Kesner, Ph.D., P.E., S.E.
- Matthew J. Innocenzi, P.E
- Rex A. Cyphers, P.E.
- Jason S. Yates, P.E.
- John M. Grill, P.E.
- William R. Nash, P.E.
- Savita Goel, P.E., LEED AP
Principals
Rhett Whitlock, Ph.D., P.E.
Principal
rwhitlock@wdpa.com
Dr. Whitlock is a nationally recognized expert in materials analysis, design, and construction procedures, with special emphasis on structural masonry, masonry veneer, stucco, EIFS, window systems, and other exterior building wall systems. He provides project management, design and quality control on multi-disciplined engineering, construction management, and restoration projects.
Prior to the inception of Whitlock Dalrymple Poston & Associates, P.C., Dr. Whitlock was Senior Vice President with KCI Technologies, Inc., in the Special Consulting Division. Leading up to his experience at KCI Technologies, Inc., he was a Research Engineer with the Brick Institute of America.
Dr. Whitlock’s education includes a Ph.D. in Civil Engineering in 1983, a Master of Science in Civil Engineering in 1981, and a Bachelor of Science in Civil Engineering in 1979, all from Clemson University. He is a licensed civil engineer in Virginia, Maryland, and South Carolina, as well as several additional states.
Dr. Whitlock’s professional memberships include the American Society for Testing and Materials, the American Society of Civil Engineers, The Masonry Society, the National Trust for Historic Preservation, and the Construction Specifications Institute. He sits on the Clemson University Civil Engineering Department Advisory Board and The Masonry Society Board of Directors, while actively involved with numerous ASTM Committees. Dr. Whitlock was a recipient of the ASTM C-15 Committee on Manufactured Masonry Units – Alan H. Yorkdale Award as well as the O.H. Ammann Research Fellowship from the American Society of Civil Engineers and has completed over 30 authoritative published papers for industry trade magazines, newspapers, and journals.
Gerald A. Dalrymple, P.E.
Principal
adalrymple@wdpa.com
Mr. Dalrymple is actively involved with a wide variety of structural engineering disciplines including failure investigations, rehabilitation of existing structures, development of restoration design specifications, construction management and inspection and litigation support. As a nationally recognized expert in his field, Mr. Dalrymple has been involved in numerous high profile projects throughout his career and has served a variety of clients including contractors, architects, engineers, government agencies, school systems, and private sector clients.
Prior to the inception of Whitlock Dalrymple Poston & Associates, P.C., Mr. Dalrymple was a Senior Associate in the Special Consulting Division at KCI Technologies, Inc. Leading up to his experience at KCI Technologies, Inc., Mr. Dalrymple was a Staff Engineer with the Brick Institute of America and a Structural Engineer with Sargent & Lundy.
Mr. Dalrymple’s education includes a Master of Science in Civil Engineering in 1985 and a Bachelor of Science in Civil Engineering in 1983, both from Clemson University. He is a licensed civil engineer in Virginia, Maryland, the District of Columbia, and several additional states.
Mr. Dalrymple is an active participant in national professional organizations, including the American Society for Testing and Materials, the American Concrete Institute, the International Concrete Repair Institute, The Masonry Society, and the Construction Specifications Institute. He is currently involved with several National Standards Committees and serves as Committee Secretary for the Masonry Standards Joint Committee responsible for development of TMS 402/ACI 530/ASCE 5 and TMS 602/ACI 530.1/ASCE 6-Building Code Requirements and Specification for Masonry Structures. He has presented on various topics at national industry conferences and authored over 25 published papers for industry trade magazines, newspapers, and journals.
Randall W. Poston, Ph.D., P.E., S.E.
Principal
rposton@wdpa.com
During his tenure at Whitlock Dalrymple Poston & Associates, P.C., Dr. Poston has overseen more than 200 projects related to investigation of concrete and structural failures. An internationally recognized expert in his field, Dr. Poston possesses a broad range of structural engineering expertise and has been involved in projects related to structural failures, structural design, structural repair and strengthening, and evaluation of corrosion-induced deterioration. He has served a variety of clients and has managed projects involving nondestructive field testing of buildings, bridges, parking structures, water-containing structures, and special structures. Dr. Poston also assists in the development of in-house nondestructive testing capabilities and technical and quality control review of structural engineering functions within the firm.
Dr. Poston’s education includes a Ph.D. in Structural Engineering in 1984, a Master of Science in Structural Engineering in 1980, and a Bachelor of Science in Civil Engineering, With Highest Honors, in 1978 all from the University of Texas at Austin. Dr. Poston is a licensed Professional Engineer or Structural Engineer in 13 states.
Dr. Poston has made significant contributions in structural engineering research and practice by authoring more than 100 nationally- and internationally-recognized technical papers. He has been awarded five prizes for published papers from, among others, ASCE, ACI, and ASTM and has received two awards from ACI for significant technical contributions in the concrete field. Dr. Poston is an active member of numerous national and international technical committees, including ACI Committee 318 – Structural Concrete Building Code, for which he is now Chair of the committee.
Dr. Poston is also the recipient of three national awards for consulting projects including the International Concrete Repair Institute (ICRI) Project of the Year for the repair and seismic strengthening of the 7.5-mile Marina del Rey Seawall located in Los Angeles, California.
J. Eric Peterson, P.E.
Principal
epeterson@wdpa.com
Eric Peterson, P.E., is a Principal with Whitlock Dalrymple Poston & Associates, P.C., in the firm's Manassas, Virginia office where he participates in 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. Mr. Peterson performs forensic field and laboratory investigations, façade and building envelope investigations, corrosion investigations, structural inspection, analysis and design, architectural retrofit and repair, roofing and waterproofing investigations, development of design documents, repair recommendations and expert witness testimony. During his career, Mr. Peterson has been involved with several high profile projects throughout the country.
Prior to joining WDP, Mr. Peterson was a Structural Engineer for Sverdrup Civil, Inc. in Falls Church, Virginia, where he contributed to several large bridge and roadway projects. Mr. Peterson is a licensed civil engineer in Virginia, Maryland, Delaware, Kentucky, and New Jersey. Mr. Peterson's education includes a Master of Science in Civil Engineering in 1993 and a Bachelor of Science in Civil Engineering in 1991 both from Virginia Polytechnic Institute.
Mr. Peterson is a member of several professional organizations, including the American Concrete Institute, the Construction Specifications Institute, the International Concrete Repair Institute, the American Society for Nondestructive Testing, the American Society for Testing and Materials, where he serves on committees C-9 Concrete and Aggregates and E-6 Performance of Buildings, and The Masonry Society, where he serves as Chairman of the Existing Masonry Committee. He has authored several technical papers on construction and testing of concrete and masonry structures.