United States Department of Transportation
i
Illinois Knox County Demonstration Project: Knox County Highway 4 Reconstruction Project
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2015-08-01
[PDF-2.68 MB]
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Edition:Final Technical Brief
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Abstract:The Knox County Highway 4 reconstruction project is located in west central Illinois, approximately 14 miles northeast of Galesburg. The construction was carried out on County Highway 4, which ran in the east/west direction and connected U.S. Route 34 to Illinois Route 17. The primary purpose of the reconstruction project was to enhance motorist safety on County Highway 4 by improving both the horizontal and vertical alignments, as well as to address deterioration problems on the existing pavement. The Knox County Highway Department, with assistance from the Illinois Department of Transportation, submitted a grant application to the Federal Highway Administration in January 2013. As a part of the Highways for LIFE program, Knox County was awarded $880,000 for utilizing 3D modeling technology. This project was first of its kind wherein the 3D modeling was used on an Illinois Department of Transportation let project. For this project, the 3D model data were made available to the contractor prior to bidding at no expense to the contractor. There were no worker injuries or work zone related crashes on this project, and the project met the Highways for LIFE goal of no more than a 10 percent increase in trip time compared to the average preconstruction conditions
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