headshots of Calvin Austiff, Lee Bloome, Shawn Gibbs, Erik Koning, Garrett Litteken

Aug. 5, 2026

Hanson promotes five to chief positions

Hanson Professional Services Inc. recently promoted five employees to chief discipline positions. In these roles, they will lead their technical discipline groups as well as collaborate with clients.

  • Calvin Austiff, P.E., S.E., St. Louis office, chief building structural engineer
  • Lee Bloome, P.E., Springfield, Illinois, headquarters, chief water/wastewater engineer
  • Shawn Gibbs, Springfield headquarters, chief environmental scientist
  • Erik Koning, P.E., Springfield headquarters, electrical technical discipline chief
  • Garrett Litteken, P.E., Springfield headquarters, chief water resources engineer

Hanson is a national, employee-owned consulting firm providing engineering, planning and allied services. The firm’s corporate headquarters is located at 1525 S. Sixth St., Springfield, IL 62703. The office may be reached by phone at (217) 788-2450.