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Alton-Godfrey Transportation Study
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Overview & Schedule

The Illinois Department of Transportation (IDOT) is conducting a transportation study of connectivity, circulation, and safety conditions in the Alton and Godfrey area. The study focuses on an area bounded roughly by Homer Adams Parkway (IL Route 3 / IL Route 111) on the south (including the triangular area south of Route 3/111 and bounded by US Route 67 and Alton Square Mall Drive); Seminary Road on the east; Seiler Road on the north; and Godfrey Road (US Route 67 / IL Route 111) on the west (study area map below).

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The purpose of this study is to identify options that could improve transportation mobility and safety between IL Route 255 and IL Route 111 (Homer Adams Parkway). IDOT and its engineering consultant team, aided by input from the public, will inventory existing conditions (such as traffic data and crash history), identify and document environmental constraints, and develop and refine improvement options (alternatives). The result of the study will be a preferred alternative that addresses identified transportation issues and serves the area’s future needs. An inclusive, responsive public involvement program is an essential part of the study. The public involvement program is being implemented using the principles of Context Sensitive Solutions (CSS), and follows the policies and procedures for CSS as developed by IDOT. CSS is a collaborative approach that involves all stakeholders to develop a transportation facility that fits into its surroundings and preserves scenic, aesthetic, historic, and environmental resources while maintaining safety and mobility. More information on CSS and how to provide your input to the study can be found on the Get Involved page.

NEPA Process

This study is being prepared following the requirements of the National Environment Policy Act (NEPA) of 1969. NEPA established a national environmental policy intentionally focused on federal activities and the desire for a sustainable environment balanced with other essential needs of present and future generations.

NEPA requires that any federally funded proposed or future action (such as construction of a roadway) be carefully analyzed for all impacts to natural and cultural resources and to the human environment. This analysis must be documented and made available for public review and comment near the end of the study.

Because transportation projects vary in type, size, complexity, and potential to affect the environment, NEPA encompasses three levels of documentation:

  • Environmental Impact Statement (EIS) – for projects where it is known that the action will have a significant effect on the environment.
  • Environmental Assessment (EA) – for actions in which the significance of the environmental impact is not clearly established.
  • Categorical Exclusions (CEs) – for actions that do not individually or cumulatively have a significant effect on the environment.

Although the level of environmental documentation for the Alton-Godfrey Transportation Study has not yet been determined, IDOT is following the requirements for an Environmental Impact Statement (EIS).

NEPA also requires that the public be given the opportunity to participate in the study’s development and have input to the decision making process. IDOT’s CSS process and the public involvement program developed for this study will fulfill the NEPA requirement.

If you are interested in learning more about NEPA, please click here to visit the Federal Highway Administration (FHWA) site on NEPA and Project Development.

Project Schedule

This study constitutes Phase I (a location and environmental study) of IDOT’s three-phase project development process, as shown on the timeline graphic below.

Although Phase III (construction) is part of the overall project development process, construction is not a foregone conclusion. The results of the Alton-Godfrey Transportation study – feedback from the public, analysis of current and projected conditions, and the NEPA document – will help determine what improvements, if any, will need to be made to area roadways.

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