LJA has full in-house capabilities to provide comprehensive professional engineering services to the public and private sectors. The firm's staff is comprised of civil engineers, traffic and transportation engineers, hydrologists, construction managers, land use planners, designers, technicians and surveyors.

We have included brief resumes of key staff members of LJA and an organization chart which depicts the firm's structure and staff. LJA staff members identified below are committed to providing solutions that work for their community. They are familiar with local rules, regulations, practices, policies, ordinances, guidelines, and criteria which must be met on all local projects.

  • Calvin T. Ladner, PE   President
  • James E. Moehlman, PE, RPLS   Senior Vice President, Houston Land Development
  • Jeff P. Collins, PE, PMP   Senior Vice President, Public Infrastructure
  • Jerrold L. Graham, Jr., PE   Vice President
  • Gregory J. Patch, PE   Vice President
  • David R. Tinney, PE, LEED® AP   Vice President
  • Wallace E. Trochesset, PE   Vice President, Division Manager
  • John A. Clark, PE   Vice President and Austin Division Manager
  • Daniel J. C. Copps, III, PE   Vice President, Highway/Bridge Division Manager
  • Gary W. Mensik, PE   Vice President
  • Charles W. Beere, PE   Senior Project Manager
  • J. Stan Cargill   Senior Consultant
  • Elizabeth A. Dewey, CPA   Chief Financial Officer
  • Roland E. Gamble, PE   Senior Consultant
  • John S. Perry   Senior Consultant
  • David H. Zuhlke, PE, CFM   Division Manager - Water Resources
  • Carolyn S. Gilligan, PE   Senior Consultant
  • John Phillips, ASLA   Director of Planning
  • Jim Wendt, AIA   Director of Planning, Woodlands Group
  • David M. Quebedeaux, PE   Manager, San Antonio Office
  • Omar Escobar   Director of Project Development
  • James D. Spackman, PE   Senior Project Manager, Transportation
  • Randal P. Arbuckle, PE   Senior Project Manager
  • Paul Viktorin, PE   Senior Project Manager
  • William T. Ehler, PE   Senior Project Manager
  • Daniel W. Ryan, PE   Senior Project Manager
  • Paul Bright, PE, RPLS   Senior Project Manager
  • Danny Miller, PE   Senior Project Manager
  • Wilson Wong, PE   Senior Project Manager
  • James E. Brown, PE   Senior Project Manager
  • James D. Ross, PE   Senior Project Manager
  • Ricardo Zamarripa, PE   Senior Project Manager
  • Mark Janzer, PE LEED® AP   Project Manager
  • Steven L. Johnson, PE   Senior Consultant
  • Dennis W. Seeman, PE   Division Manager - Water/Wastewater
  • Jessica L. Koutny, PE, CFM   Project Manager
  • R. Alan Munger, PE   Senior Project Manager
  • George Culver   Director - GIS
  • Brandon Copeland   Lead GIS Developer
  • Steve Phy   Senior Planner
  • Marcia Yim   GIS Manager
  • Gloria Howell   Planner
  • Andres A. Pulido, LEED®AP   Planner
  • Jason M. Kelly, PE   Senior Project Manager
  • Edmund (Eddie) Rucker, PE   Project Manager
  • Donnie A. Reed, PE   Senior Project Manager
  • Michael S. Rusk, PE   Senior Project Manager
  • Keith W. Monroe, RPLS   Surveying Department Manager
  • Gary D. Nutter, RPLS   Project Surveyor
  • Pareena Trochesset, PE   Project Manager
  • Chad A. Johnson, PE, CFM   Senior Project Manager
  • Gregg B. Haan, PE   Senior Project Engineer
  • Jack E. Shick, Jr., PE, PTOE   Project Manager
  • Zhanfei "Tom" Fan, PhD, PE   Senior Structural Engineer
  • John R. Moy   Project Manager
  • Curtis H. Villarreal, PE   Construction Department Manager
  • Brian S. Ross, PE   Project Manager
  • Anthony Francis   Director of Client Services
  • Mehdi Nezami, PE   Project Manager