I-55 Managed Lane Project

The Illinois Department of Transportation (IDOT) is currently engaged in a preliminary engineering and environmental (Phase I) study for the improvement of I-55 from I-355 (Veterans Memorial Tollway) to I-90/94 (Dan Ryan Expressway) in DuPage and Cook Counties.  The Phase I Study began in the spring of 2012 and is following the Federal National Environmental Policy Act (NEPA) process, which facilitate an open and transparent study.  It also will follow the Illinois Department of Transportation (IDOT) Context Sensitive Solutions (CSS) policy, which provides for numerous public involvement opportunities.

This project will study an addition of one managed lane in each direction (generally within the existing median of I-55). The study area begins at I-355 and continues east to I-90/94.

Noise Wall Solicitation Complete

The Illinois Department of Transportation (IDOT) has completed the voting process among property owners and occupants identified as benefited receptors regarding proposed noise mitigation along the I-55 Managed Lane Project corridor. Thirteen noise walls totaling over 11 miles in length with 1,776 benefited receptors were found to be feasible, cost reasonable, and achieved the IDOT noise reduction design goal. Following an initial ballot, three barriers (B5, B20 and B21) did not receive the desired 33 percent response rate, and a second ballot was mailed to the benefited receptors for these locations. The final date for receiving responses was on July 8, 2016.

As established by Federal Highway Administration regulations, property owners and/or tenants identified as benefitted receptors are able to vote for or against noise walls in their area. In order for a person to be eligible to vote, the noise wall must decrease the noise level at the property by at least 5 decibels, which is a readily perceptible change in noise (typically homes within 300 feet of a noise wall).¬† ¬†Anything less than 5 decibels is barely detectible by the human ear, therefore a noise wall would not provide any perceptible benefit.

If more than 50% of the votes received are in favor of a wall, the wall is likely to be implemented with the proposed project.

Voting is now complete with the results as follows:

Noise Wall

Voting Results

Likely to be Implemented

B1

97%

In Favor

Yes

B3

97%

In Favor

Yes

B4

92%

In Favor

Yes

B5

100%

In Favor

Yes

B6

95%

In Favor

Yes

B7

94%

In Favor

Yes

B8

93%

In Favor

Yes

B9

93%

Opposed

No

B14/B16

100%

In Favor

Yes

B18

85%

In Favor

Yes

B19

80%

In Favor

Yes

B20

83%

In Favor

Yes

B21

58%

In Favor

Yes

Please click here to view an exhibit identifying the noise wall locations.

To learn more about the noise walls on the I-55 Manages Lanes project, click here to view slides from a recent presentation.

How Can I Get Involved?

News & Events

Study Area Map


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Who's Conducting the Study?

Illinois Department of Transportation (IDOT) is managing the consulting contracts and overall study. IDOT will act as a joint lead agency with Federal Highway Administration (FHWA) for the preliminary engineering and environmental study. A consultant team lead by Stantec will conduct the environmental study for the I-55 Managed Lane Project for IDOT.