KJ Unnerstall Construction

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KJ Unnerstall Construction

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KJ Unnerstall Construction provides Franklin County and the surrounding communities with site development excavation and underground utility services to aid the growth of the surrounding communities we live in.

04/08/2026

No construction work will take place on the High Street Roadway Project from Wednesday evening 8/5 to Monday morning 8/10 to help with fair traffic. High Street will be completely open to traffic during that time.

06/06/2026

The High Street Reconstruction Project will begin the week of June 8th. The Contractor for the project is KJU. They are starting near 5th Street and working north to Front Street. Work will begin with concrete sidewalk and curb & gutter replacement. Plan is to work on one side of the street, one or two blocks at a time, and allow traffic through the work zone. There may be periods of work when High Street or the side streets may need to be closed. Detours will be provided at those times. There will be limited parking in the areas of construction, please utilize alleys and side streets.

After concrete work is completed asphalt paving will begin. Asphalt work is scheduled for later in the fall of this year. Asphalt work will take a few weeks and will require No Parking on High Street for the length of the Project from Fifth Street to Front Street. Signs will be posted in advance of No Parking. Contractor plans to have construction completed by the end of 2026.

Please use caution in this area and utilize alternative routes if possible. There will be delays and possible street closures at times during the project. This work will impact travel to the City Parks and Fairgrounds.

If you have any questions, you can reach out to the City’s Engineering Department 636-390-1010.

04/05/2026

We’re proud to announce that K. J. Unnerstall Construction has been awarded the 2025 Safety Award – Division V by the American Subcontractors Association Midwest Council.

A special thank you to Amy Muench for representing our team and accepting the award on our behalf.

Safety is at the core of everything we do—from our crews in the field to our leadership team. This recognition reflects the hard work, accountability, and commitment our entire team brings every single day.

Thank you to our employees for making safety a priority and helping us build better, safer projects.

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Opening Hours

Monday	07:30 - 16:00
Tuesday	07:30 - 16:00
Wednesday	07:30 - 16:00
Thursday	07:30 - 16:00
Friday	07:30 - 16:00

Telephone

+16362392028

Website

http://kjuconstruction.com/

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