Our Mission Statement…

“Delivering valuable, professional services through a creative, practical, collaborative design process resulting in an improved quality of life to the communities and stakeholders we serve.”

“Heneghan Associates (HA) is a purpose-driven firm that furnishes valuable professional services to our clients resulting in creative, yet practical, collaborative design solutions that when combined with funding ingenuity are able to be implemented within their budget constraints. By doing so, we are instilling a culture of trust and value as we improve the quality of life for all those living and working in the communities we serve while providing opportunities for continued growth/success to our firm members.”

Our motto:
“Dedicating our services to strengthen client trust.”

Serving our communities for over 38 years…

Heneghan Associates, (HA) was founded in 1986, as a multi-disciplined civil engineering and surveying firm. We provide professional services to public and private sector clients. Our team of highly respected, educated, and experienced personnel has grown to a staff of more than 30 employees with offices in Mt. Vernon, Columbia and Jerseyville, Illinois and Arnold, Missouri.

We select our personnel for their technical abilities and willingness to participate in the collaborative process — necessary for successful project outcomes. Teamwork is a strategic commitment within HA. The firm utilizes partnering philosophies and creative teaming to optimize its diverse skills and develop strategic alliances with its clients.

Experience is more than just a term of value at HA; it’s leadership and knowledge. We feature 13 engineers with a combined 300+ years of experience; and three surveyors with more than 70+ years of combined experience. That leadership team is supported by more than 14 engineering technicians, surveying technicians and administrative support staff. We boast a team that can easily meet the schedule, the budget, and the goals of your project.

In June 2013, HA began a new era by completing an internal ownership transition from founder and majority stockholder Dean Heneghan to its current ownership of seven stockholders: Curt Westrich, Ronnie Paul, Josh Stumpe, Seth Elliott, Brandon Egelhoff, Adam Lott, and Lindsey Bowlin.

The future is bright at HA and its clients will benefit from their creative design and well managed team. HA’s professional services feature transportation engineering, land planning/development (residential, commercial, industrial, institutional, recreational), environmental engineering (water, wastewater, storm water), surveying, and funding assistance.

Click here for a comprehensive list and description of our services and samples of our work.

Serving You in Four Locations

Ronald Paul
1004 State Highway 16
Jerseyville, IL 62052
p: 618-498-6418
f: 618-498-6410
Jim Vogt
310A Vision Drive
Columbia, IL 62236
p: 618-281-8133
f: 618-281-8290
Lindsey Bowlin
800 Broadway, Suite 3
Mt. Vernon, IL 62864
p: 618-533-6525
f: 618-533-6652
Curt Westrich
1929 Richardson Road
Arnold, MO 63010
p: 636-464-3610
f: 636-464-2059


  • 2019 Illinois Rural Water Association Associate Member of the Year
  • 2013 Jersey County Business Association Business of the Year
  • 2011 River Bend Growth Association Small Business of the Year
  • 2011 River Bend Growth Association Small Business of the Month
  • 2010 PSMJ Circle of Excellence
  • 2010 American Council of Engineering Companies, Illinois Section, Engineering Excellence for Gateway Regional Water System
  • 2008 American Society of Civil Engineers Outstanding Civil Engineering Achievement Award for Gateway Regional Water System
  • 2006 American Council of Civil Engineering Companies, Illinois Section, Distinguished Service Award to Dean Heneghan for three years of service as chairman of USDA Rural Development Committee
  • 1999 CECI Engineering Excellence Merit Award for Bond Madison Rural Water Company Distribution System
  • 1994 Thomas H. Madigan Special Merit for Teamwork and Emergency Conditions