Heneghan and Associates, Inc.

Heneghan and Associates, Inc. Since ‘86 /Civil Engineering & Land Surveying Firm. Vernon, Maryville, IL & Arnold MO Founded in 1986. We are a Civil Engineering&Land Surveying Firm.

We collaborate with landowners & municipalities to
deliver innovative solutions for a variety of projects.
📍Jerseyville, Columbia, Mt. With locations in, Jerseyville, Columbia, & Mt Vernon, IL & Arnold, MO. Our team collaborates with landowners & municipalities to deliver innovative solutions for a variety of projects

Our offices will be closed on Monday, September 7, in observance of Labor Day. We wish everyone a safe and enjoyable hol...
09/04/2026

Our offices will be closed on Monday, September 7, in observance of Labor Day. We wish everyone a safe and enjoyable holiday weekend!

We had a fantastic time at the Jefferson County Chamber of Commerce's 2026 Annual Chamber Golf Outing last Friday. The w...
09/03/2026

We had a fantastic time at the Jefferson County Chamber of Commerce's 2026 Annual Chamber Golf Outing last Friday.

The weather was perfect, the course was great, and it was a pleasure connecting with local businesses and community partners throughout the day. We're proud to support the Chamber and grateful to be part of such a strong business community.

We enjoyed spending the day at the Jersey County Business Association Annual Golf Scramble last week! ⛳It was a great op...
09/01/2026

We enjoyed spending the day at the Jersey County Business Association Annual Golf Scramble last week! ⛳

It was a great opportunity to connect with fellow Jersey County businesses and community partners.

Heneghan Associates is proud to support the JCBA and the work they do to strengthen our local business community.

Looks like a camera, doesn't it?It's actually a Total Station, a high-precision surveying instrument that helps our team...
08/26/2026

Looks like a camera, doesn't it?

It's actually a Total Station, a high-precision surveying instrument that helps our team gather the data needed to design and build with confidence.

From measuring elevations to marking exact locations in the field, this technology plays a critical role in keeping projects accurate from start to finish.

It's not taking photos. It's helping shape the world around us.

👉 Swipe to learn more.

Ever wonder what’s really going on beneath a fire hydrant? 🚨You see the red top above ground, but underneath? It’s like ...
08/13/2026

Ever wonder what’s really going on beneath a fire hydrant? 🚨

You see the red top above ground, but underneath? It’s like the secret lair of your water system — full of valves, connections, and a whole lot of heavy lifting to keep water flowing where and when it’s needed.

This behind-the-scenes look shows how hydrants connect to underground water lines — it’s not glamorous, but it’s essential. Without this setup, that hydrant wouldn’t do much more than look good in a photo.

Water infrastructure: not always pretty, but always important.

Protect yourself and your family by contacting JULIEBeforeYouDig.com. (800) 892-0123It is a free service that makes it e...
08/11/2026

Protect yourself and your family by contacting JULIEBeforeYouDig.com. (800) 892-0123

It is a free service that makes it easy for you to avoid causing costly damages to buried utilities, service interruptions and potential injury.

08/05/2026

🚀We're growing! HA is looking for talented, passionate individuals to join our team. Ready for your next opportunity? Ex...
08/04/2026

🚀We're growing! HA is looking for talented, passionate individuals to join our team. Ready for your next opportunity? Explore our open positions and come grow with us!

Apply today at haengr.com/careers.

Welcome, Matt! We’re excited to have you as part of the HA team and look forward to working together to achieve great th...
07/31/2026

Welcome, Matt! We’re excited to have you as part of the HA team and look forward to working together to achieve great things.

Today we’re celebrating our amazing interns — Amelia Strebel, John Pryor, Gage Eddings, Braden Snell, Elijah Woods, and ...
07/30/2026

Today we’re celebrating our amazing interns — Amelia Strebel, John Pryor, Gage Eddings, Braden Snell, Elijah Woods, and Fritz Schaefer!

We’re grateful for the energy, fresh perspectives, and hard work they bring to the team. Their willingness to learn, take on new challenges, and contribute to our projects makes a difference every day. Thank you for being part of our team and helping us continue to grow. We appreciate all that you do!

Address

1004 Illinois 16
Jerseyville, IL
62052

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+16184986418

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