Calhoun Growth Association (CGA)

Member Spotlight

Heneghan Associates

Heneghan Associates (HA) is a multi-disciplined consulting firm providing engineering and surveying services to public and private clients. With over 300 years of combined experience, our team delivers practical, reliable solutions backed by deep funding knowledge that drives project success. At Heneghan Associates, we proudly serve landowners, homeowners, and communities throughout rural areas such as Calhoun, Greene, and Jersey Counties. With offices in Jerseyville, Maryville, Columbia, Mt. Vernon, and Arnold, MO, our team is well-positioned to provide trusted engineering and surveying services to the greater St. Louis metro area. Over our 40 years in business, Heneghan Associates has been honored with a variety of awards recognizing our commitment to excellence, innovation, and client satisfaction. Most recently, we received the 2024 PSMJ Premier Award for Client Satisfaction. Other highlights include recognition from the Illinois Rural Water Association, American Council of Engineering Companies, American Society of Civil Engineers, and multiple local business and industry organizations for engineering excellence, leadership, and community impact. We’re gearing up to celebrate 40 years in business in 2026! Plus, we’re excited to announce that drone surveying is back at Heneghan Associates—now featuring LiDAR and high-resolution imaging for even greater project precision. Lindsey Bowlin, P.E. - President Stockholders: Curt Westrich, P.E., Ronnie Paul, P.E., Josh Stumpe, P.L.S, Seth Elliott, P.E., Brandon Egelhoff, P.L.S, Adam Lott, P.E., and Lindsey Bowlin, P.E..