Contact Us

E-mail Us:

Chairman of the Board

William A. Aden P.E.
waden@daa.com - 540-552-0444

Division Leaders

Jeffrey T. Crate, P.G. – Waste Resource Engineering
jcrate@daa.com - 540-552-0444

Tim Dean, P.E., LSIT – Site Planning and Engineering
tdean@daa.com - 757-599-9800

Kenneth M. Piazza, P.E. – Geotechnical
kpiazza@daa.com - 804-264-2228

Fred T. Pribble, P.E. – Utilities
fpribble@daa.com - 804-264-2228

David W. Spriggs, P.E. – Structural
dspriggs@daa.com - 804-264-2228

Michael D. Lawless, P.G. – Environmental
mlawless@daa.com - 540-552-0444

Lee O. White, L.S. – Surveying
lwhite@daa.com - 804-264-2228

Career Information

Charlie Mahaffey
cmahaffey@daa.com - 804-264-2228

Water and Wastewater Survey/Reports: 

wssurvey@daa.com

General Information:

daa@daa.com

CEO/President

Jeffrey N. Lighthiser, P.E.
jlighthiser@daa.com - 804-264-2228

Chief Operating Officer

Richard M. DiSalvo., Jr., P.E.
rdisalvo@daa.com - 540-552-0444

Chief Financial Officer

Theresa J.A. Turner, CDA, PHR
tturner@daa.com - 540-552-0444

Director of Marketing and Business Development

Jeffrey S. Nelson.
jnelson@daa.com - 804-264-2228

Office Managers

Scott Kroll, P.E. – Blacksburg
skroll@daa.com - 540-552-0444

Thomas S. Cox, P.E. – Charlottesville
tcox@daa.com - 434-295-0700

David W. Spriggs, P.E. – Richmond
dspriggs@daa.com - 804-264-2228

Tim Dean, P.E., LSIT - Hampton Roads
tdean@daa.com - 757-599-9800

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