Heneghan Associates

Heneghan Associates is a multi-disciplined civil engineering and land surveying firm founded in 1986. Its work covers water, wastewater and storm water engineering, transportation engineering, land development, land surveying, funding assistance and design-build construction for public and private clients. The firm has grown to more than 35 employees, including ten engineers and four surveyors.

The Jerseyville office at 1004 State Highway 16 is the firm's home base, with other offices in Columbia, Maryville and Mt. Vernon, Illinois, and Arnold, Missouri. Survey quotes are requested through the website, and project inquiries can be made by phone or through the contact form. Many of its projects involve rural water systems and public infrastructure.