Knox County Highway # 4

County Highway #4 is a two-lane rural collector that links the Village of Altona to Illinois Route 17.  The county initiated the project to improve geometric deficiencies and reconstruct the deteriorating roadway. The project involved the reconstruction of County Highway #4 with 22’ wide concrete pavement and 4’ aggregate shoulders. Adjustments were made to the horizontal and vertical alignments to improve safety. The project also included all new culverts and drainage structures. 

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Hermann & Associates was retained to prepare the Phase I project report and Phase II design plans for six (6) miles of County Highway #4. The project was designed and built in two sections. Public involvement activities included conducting an open house meeting with local residents, businesses, agencies, emergency services, and the post office.  The project was processed through the IDOT District 4 Bureau of Local Roads.

Construction of the 1st section from Altona to County Highway #15 was completed in 2015, and the second section from County Highway #15 to Illinois Route 17 was completed in 2018.  The project received an ACEC 2015 Engineering Special Achievement Award for making 3D Modeling data available to contractors before bidding and requiring the use of Automated Machine Guidance during construction.