Illinois Route 104

The IL 104 bridge at Meredosia project utilized CSS to determine the alignment for the IL 104 crossing the Illinois River and a preferred alternative has been selected. Illinois Route 104 (IL-104) runs through the town of Meredosia and serves as a main street through its business district. The route connects to US Route 67 about 2.8 miles east of the town and continues westward across the Illinois River, eventually connecting to IL-99. The existing IL-104 Bridge over the Illinois River was built in 1936. The Illinois Department of Transportation has considered improving the bridge due to its substandard geometry and deterioration over the years. This study is a Phase I Preliminary Engineering and Environmental Assessment for IL-104 in Morgan and Pike Counties. The purpose of this study is to identify the transportation needs of the communities affected by this project, evaluate possible alternatives for the improvement of the bridge, and identify a preferred alternative for further engineering in next phase (Phase II) of the project.

The advisory committee assisted in developing various alignments for the river crossing, and how they would affect the community and those using this route. The preferred alternative, which has support from the advisory committee, local officials, and the general public, was developed by the advisory committee. The local community had ownership of the alternative selected and did not feel the alternative was selected for them.

Contact person: Jeffrey.Myers@illinois.gov