FAQs

Why is the IL 18 River Bridge under study?

The IL 18 River Bridge was built in 1934 and is nearing the end of its expected use. Its condition and geometrics are poor, making it functionally obsolete. To address the structure’s deficiencies, a study is required to identify appropriate rehabilitation measures or replacement of the bridge.

Will the new structure be in the same location as the existing one?

If construction of a new structure is required, alternatives will be studied that will include a new structure on the same alignment as the existing one, as well as structures on new alignments. The various alternatives will need to have the benefits and impacts of each compared to identify the preferred alternative.

Will the existing structure be replaced or just rehabilitated? 

Since it is early in the Study, a decision has not been made whether the bridge will be replaced or rehabilitated. Before making the decision, data must be gathered, inspections need to be made, and costs and benefits must be assessed. Once the information is compiled, an informed decision can be made.

How long will this take?

The Phase I Study has a target completion of two years.  This study will identify the preferred alternative and any new right-of-way, if needed.  Phase II of the project will take approximately another two years, starting after Phase I is complete. Phase II will develop the detailed plans needed for construction of the project.  Phase III, the actual construction, can begin when the Phase II plans are complete and required permits have been obtained.

Will the new bridge have sidewalks and bike lanes?

As a part of the Phase I Study for the IL 18 River Bridge Project, pedestrian and bicyclist accommodations will be considered.  Inclusion of the accommodations will be dependent on expected use and anticipated costs. 

What would a new bridge look like?

If a new bridge is required, its design will meet current standards for length, width, and height. The selected style will be dependent on the potential impacts and benefits of each design. 

What is IDOT’s land acquisition process?

This brochure provides an overview of the land acquisition process. The land acquisition process cannot begin until the Phase I study is approved.