HSA Consulting Group was acquired on October 1, 2022 by Columbia Engineering and Services, Inc., headquartered in Duluth, GA. HSA Consulting Group will now go by HSA Columbia.
Columbia Engineering is a professional services civil engineering firm providing transportation design, transportation planning, traffic engineering and operations, traffic operations design, water resources, landscape architecture, park design, survey, land development, and construction inspection.
This acquisition provides additional staff and depth of resources to HSA Columbia, expanding our offerings to Florida clients. HSA Columbia staff will enhance Columbia Engineering’s services in the areas of transportation planning, lighting design, data collection, and GIS. Together, we will continue the legacy that began with the founding of HSA in 1991 by Gay H. Smith, and to embrace her guiding principles of high quality standards, integrity, technology driven, employee empowerment, and a family atmosphere.  
HSA Columbia is excited for this opportunity for growth and additional resources.  We look forward to continuing to serve our clients, doing the job right, and always striving to exceed expectations.

”Why choose HSA Columbia? We are a transportation consulting firm providing an extensive range of services including: Transportation Planning, Transportation Design, Traffic Engineering and Operations, FDOT Design, GIS/Photogrammetry, Vehicle and Pedestrian Data Collection, and Transportation Software Development. HSA is fully Pre-Qualified with FDOT in Minor Highway Design, Planning, Traffic Engineering, Traffic Signal Timing, Intelligent Transportation Systems, Signing and Pavement Marking, Lighting and Signalization Analysis and Design, and has been providing services as a Prime Consultant to FDOT for the past 28 Years. Our corporate size, structure, and office locations allow us to quickly deploy, implement, and adapt to changing conditions. This engenders a feeling among HSA Staff that we can get the job done no matter what it takes. This corporate culture sets us apart from other firms that struggle with corporate management layers and multiple decision makers."
  • Condition Diagrams and Conceptual Design
  • Collision Diagrams and Statistical Crash Analysis
  • Intersection Delay Studies
  • Vehicle Gap Size Studies
  • Vehicle and Pedestrian Turning Movement Counts
  • Traffic Volume and Classification Counts
  • Safe Curve Speed Studies
  • No Passing Zone Studies
  • Vehicle Spot Speed Studies
  • Travel Time and Delay Studies
  • Highway Lighting Justification Studies
  • Roundabout Justification Studies
  • Traffic Signal Timing Studies
  • Traffic Signal Phasing Analyses
  • Arterial and Intersection Capacity Analysis