HDCA Staff, Left to Right: Jimmy Seal, Anne Ayo, H. Davis Cole, Buster Lyons, David Martin, Angie White, Sid Trouard and Don Barcelona.
HDCA Key Personnel
H. Davis Cole & Associates, LLC (HDCA) is a full-service civil & environmental engineering firm providing a wide array of services to both public and private sector clients. HDCA is licensed to provide Professional Engineering services within the States of Louisiana and Mississippi.
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Our primary personnel include:
- H. Davis Cole, P.E.
Principal Engineer / Baton Rouge Regional Manager - Sid E. Trouard, P.E.
New Orleans Regional Manager / Director of Technical Services - Harold “Buster” Lyons, P.E.
Director of Business Development - David A. Martin, E.I.
Project Engineer - James N. Seal, Jr.
Sr. Construction Manager - Anne M. Ayo
Administrative Assistant - Angie White
Sr. Administrator - Don Barcelona
Resident Project Representative




