The Illinois Department of Transportation (IDOT) is initiating the I-55 Managed Lane Project following the National Environmental Policy Act (NEPA). The Federal Highway Administration (FHWA) and Illinois Department of Transportation (IDOT) will complete an environmental evaluation for the Managed Lane Project in order to satisfy NEPA requirements.
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. Read more »
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.