IL-47 Improvement Study (Yorkville to Sugar Grove)

The Illinois Department of Transportation is conducting a study for the improvement of IL Route 47 from Kennedy Road in Yorkville, to Cross Street in Sugar Grove. The purpose of the study is to identify roadway improvements that will accommodate projected increases in traffic in this rapidly growing area.

In addition to serving future traffic demands, this project will coordinate with other improvement projects along IL 47. For example, a project is currently underway for the widening of IL 47 to five lanes through downtown Yorkville. That five lane widening will be taken into consideration as we move forward with the Yorkville to Sugar Grove study.

The current study will be carried out following Context Sensitive Solutions (CSS) policies adopted by the Illinois Department of Transportation. These CSS prolicies are intended to ensure that the proposed improvements are designed as to preserve or enhance the valued characteristics of the project area.

The involvement of the public is an important part of CSS projects. In the IL 47 study, two advisory groups will be formed. One of these, a Project Study Group, will include federal, state and regional transportation officials. The other a Community Advisory Group (CAG) will include community members, local transportation officials, and local service providers.

Other opportunities for public involvement will include public meetings, a public hearing, and other meetings with the study team as appropriate. More details about these opportunities will be posted on this website and announced in local newspapers.

Update (10/9/2018)

Updated exhibits are posted under the Resource tab to show the more major changes that were made based on public hearing comments.  Please note that these exhibits don't show all changes and particularly don't show those that focus on one specific property.

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.


A key part of our study process will be the creation of a Community Advisory Group. The Group will:
  • Ensure that the opinions of the broader community are shared with the IDOT project team.
  • Ensure that information developed by the project team is distributed throughout the community.
  • Help to identify and evaluate transportation improvements.
  • Generate interest and knowledge among the general public about the IL 47 study.
In carrying out these functions, the CAG will play an important role in defining the area’s important features, identifying highway preferences, and recognizing potential highway impacts.

Advisory Group members will be expected to carry out the following responsibilities:

  • Attend each CAG meeting and participate in Group discussion and activities.
  • Participate openly and honestly, respecting the opinions of other Group members.
  • Represent their organization, constituency, or broader community interests.

Membership on the CAG is an important job, but we also expect it to be an educational, rewarding experience for all involved.

It is important that the CAG be both representative of all the varied interests that exist within the project study area while being small enough to allow the detailed level of discussion and activities needed to accommodate meaningful interaction. Membership includes representatives from the following kinds of groups:

  • Local and county government
  • Area communities
  • Agricultural interests
  • Environmental groups
  • Business organizations
  • Bicycling interests
  • Interested Citizens

Your comments and questions are important to us and are reviewed by IDOT’s study team. We provide responses to all questions and strive to do so in a timely manner. Several opportunities for public involvement are scheduled and additional meetings can be organized, if appropriate to do so.

If you: 1) have comments/questions/suggestions, 2) would like to be placed on our mailing list, or 3) would like to be part of the CAG, please let us know. You may email the Study team or other methods, as shown below.

If you prefer, you may contact us by US mail, phone, or fax:
Illinois Department of Transportation
Attn: David S. Alexander, P.E.
700 East Norris Drive
Ottawa, IL 61350-1628
Phone (815) 434-8468
Fax (815) 434-8951

The following study documents are available for viewing or downloading:

October 9, 2018  Updated Exhibits 

IDOT Highway Traffic Noise Video Series

May 30, 2018 Public Hearing

Hearing Summary
Comment Sheet

Aerial Exhibit North
Aerial Exhibit Middle
Aerial Exhibit South
Crash Data
Floodplain and Floodways
Key Impacts
Project Purpose
Traffic Data

March 7, 2016 Community Advisory Group Meeting (CAG)

Meeting Summary
Aerial Exhibit North
Aerial Exhibit Middle
Aerial Exhibit South

March 14, 2012 Public Meeting

Revised Meeting Summary
Video Presentation
Location Map
Purpose and Need
Crash Data
Speed Limit/Traffic Data
RobRoy Creek Floodplain map
Comparative Evaluation Matrix
Typical Section Alternative A
Alternative A South
Alternative A Middle
Alternative A North
Typical Section Alternative B
Alternative B South
Alternative B Middle
Alternative B North
Typical Section Alternative C
Alternative C South
Alternative C Middle
Alternative C North
Alternative D South
Alternative D Middle
Alternative D North

January 10, 2012 Community Advisory Group Meeting

Meeting Summary

September 13, 2011 Community Advisory Group Meeting

Meeting Summary

Stakeholder Involvement Plan April, 2011


April 14, 2011 Community Advisory Group Meeting

Meeting Summary

Results of Community Context Audit

January 27, 2011 Community Advisory Group Meeting

Meeting Summary

November 3, 2010 Public Meeting

Crash Data
Comment Sheet
Location Map
Purpose and Need
Aerial exhibit south
Aerial exhibit middle
Aerial exhibit north
Typical sections
CAG roles and responsibilities

IDOT is currently at the early stages of Phase I for this project. This site will be updated periodically as the project progresses. The Illinois Department of Transportation (IDOT) wishes to thank you for your support and patience.

Photo Gallery