Illinois Route 3 and Illinois Route 150 Study: City of Chester, Randolph County, Illinois
Welcome to the website for the Illinois Route 3 and Illinois Route 150 Preliminary Engineering and Environmental Study in Chester, IL. The Illinois Department of Transportation (IDOT) has created this site to provide information about the progress of the study and to facilitate public input and participation in the study. Project updates, public involvement opportunities, and relevant information will be posted here throughout the projects. IDOT appreciates your participation and input.
PUBLIC MEETING OCTOBER 14, 2026
IDOT’s first Public Meeting for this project was held in personon October 14, 2026 from 4:00 pm – 7:00 pm at the Chester Elementary School Gym 650 Opdyke Street, Chester, IL. The virtual public meeting will continue on this website until November 4, 2026.
Overview
Illinois 3 and Illinois 150 are principal arterial roadways in Chester, Illinois. IDOT is conducting a preliminary engineering study to replace the corridor's 80-year-old pavement, which has required ongoing repairs and has continued to carry high truck volumes. Replacing the aging pavement is the most cost-effective long-term solution to improve reliability and serviceability for the traveling public.
The purpose of the preliminary engineering and environmental study is to determine the preliminary design of the project and will include efforts such as an assessment of safety needs, intersection and drainage improvements, as well as bike and pedestrian needs. For more information on the project development phases that lead to construction is in the project timeline section.
Timeline
Construction of the various projects will be phased over time. The order of implementation of these projects will be based on project readiness, traffic management plans, pavement conditions, and input from the community. Different segments will be worked on at different times, not all at once.
Study Location
The Illinois 3/150 improvement projects extend from the intersection of Illinois 150 and Murphysboro Road in Chester, west along Illinois 150 and Illinois 3, and south on Illinois 3 to Pleasant Ridge Road.
The overall project length is 4.8 miles, encompassing both urban and rural segments within Randolph County. The study limits have been broken into several projects based on roadway characteristics, pavement conditions, and land use. These projects are described individually below.
Projects
Contract #: 76K81
This portion of the study involves pavement removal and replacement of approximately 1 mile of roadway leading into the center of the town of Chester.
The existing roadway configuration includes one lane in each direction with either shoulder or curb and gutter. Sidewalk exists intermittently through this section.
Project Limits
Contract #: 76N02
This approximately 0.5 mile portion of the study involves pavement removal and replacement for Illinois 3. The existing roadway configuration includes one lane in each direction with curb and gutter and sidewalks.
Study Limits
Contract #: 76R26
This almost 1 mile portion of Illinois 3 will involve pavement replacement.
The existing roadway configuration includes one lane in each direction with a variety of curb and gutter or shoulder. There is existing sidewalk for a portion of this segment on the east side of Illinois 3.
Project Limits
Contract #: 76K84
This almost 1.6 mile portion of Illinois 3 will involve pavement replacement.
The existing roadway configuration includes one lane in each direction with a variety of shoulder and/or ‘v’ gutter as edge treatments. There is an at-grade railroad crossing just south of the study limits, south of Water Street.
Project Limits
Contract #: 76F83
This portion of the study involves approximately 4 blocks of Illinois 3 through the heart of Chester. It involves pavement replacement.
The existing roadway consists of one lane in each direction with on-street parking and sidewalks.
Project Limits
Contract #: 76R24
This portion of the study involves approximately one mile of Illinois 3 from Water Street to Pleasant Ridge Boulevard. It involves pavement replacement.
The existing roadway consists of one lane in each direction with a variety of shoulder and/or ‘v’ gutter as edge treatments.
Project Limits
FAQ's
$42 million is identified for construction of these projects in the Department’s FY 2026-2031 Proposed Highway & Multimodal Improvement Program.
Funding for these projects will be a combination of federal and state dollars.
ROW needed for the projects has not been determined at this time. During the Preliminary Design process, the limits of construction and ROW needs will be established.
These projects are in the preliminary engineering phase so it is still too early to know when the projects will be constructed or how long each individual project will take to build.
Access to homes and businesses will be maintained during construction.
Get Involved
We are engaging the community in the following ways:
- Small group/individual stakeholder meetings
- Public meetings
- Website updates
- Briefings and presentations
- Media releases
Public Meeting
IDOT will be holding Public Informational Meetings throughout the development of the study to allow the public to view the improvements of these projects and provide comments. The initial public meeting will focus on an overview of all project contracts.
Information on Public Meetings that have occurred will be posted here to view, including Public Meeting announcements, Public Meeting press releases, Public Meeting Displays, and Public Meeting brochures.
Public Meeting #1
IDOT’s first Public Meeting for this project was held on October 14, 2026 from 4:00 pm – 7:00 pm at the Chester Elementary School Gym 650 Opdyke Street, Chester, IL.
The public meeting comment period is open until November 4, 2026.
Public Meeting #1 Exhibits
- Welcome: IL Route 3 and IL Route 150 Preliminary Engineering Study
- IL 3/IL 150 Location Map
- Project Needs
- What are the IL 3/IL 150 Projects?
- Purpose of the Public Meeting
- Context Sensitive Solutions (CSS)
- Location of IL 3/IL 150 Projects
- IL 3/IL 150 Average Daily Traffic
- IL 3/IL 150 Crash Data
- Murphysboro Road to Opdyke Street
- IL 150 (State Street) to Crosby Street
- Crosby Street to Riverview Boulevard
- Riverview Boulevard to Water Street
- Holmes Street, Swanwick Street, and Stacey Street
- Pleasant Ridge Road to Mary’s River Bridge
- Project Schedule
- Land Acquisition
- Share Your Input
- Thanks for Attending!
- Public Meeting #1 Handout
Context Sensitive Solutions (CSS)
An important part of the project is public participation. IDOT utilizes Context Sensitive Solutions (CSS) as a way to continually engage stakeholders in the study. As identified in IDOT’s CSS policies, stakeholder involvement is critical to a study’s success. The CSS process strives to achieve the following:
- Understand stakeholder’s key issues and concerns
- Involve stakeholders in the decision-making process early and often
- Establish an understanding of the stakeholder’s role in the study
- Consider all modes of transportation
- Set a project schedule
- Apply flexibility in design to address stakeholder’s concerns whenever possible
For more information on IDOT’s CSS process.
Contact Us
IDOT values your comments and questions. IDOT will provide responses to all questions and strive to do so in a timely manner.
Please email your comments to IDOT at brandon.humphreys@illinois.gov, or if you prefer, you may contact us by U.S. mail or phone:
Illinois Department of Transportation
Attn: Mr. Brandon Humphreys
1102 Eastport Plaza Drive
Collinsville, IL 62234
(618) 346-3413