IL 173 Project Study


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Illinois Route 173

The Illinois Department of Transportation (IDOT) is initiating the Illinois Route 173 Phase I Planning and Environmental Study. This study will identify potential improvement of Illinois Route 173 from Illinois Route 59 to U.S. Route 41. The Illinois Route 173 project corridor extends over nine miles through northern Lake County, from west of Illinois 59 in Antioch, Illinois to east of U.S. 41 in Wadsworth, Illinois.  The corridor traverses a mixture of land uses, including residential, retail, agricultural and natural areas. (Read more about the project at the Illinois Route 173 Phase I Planning and Environmental Study site.)

Considering the likelihood of considerable impacts this project may have on the community and the environment, and wide range of improvement possibilities, IDOT has designated this project to be guided under the principles of Context Sensitive Solutions (CSS).  Visit the Get Involved section of the Illinois 173 site to find out how you can participate.

Note: IDOT projects typically have three distinct phases. Phase I (or the project Study) consists of developing the project scope, environmental studies and preliminary design of a project. Phase II (Design) consists of refining the design to develop contract plans and land acquisition. Phase III (Construction) consists of the actual construction of the project.

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