Illinois Department of Transportation


Illinois Department of Transportation

Project Cost


Market Sector



Environmental, Highways & Traffic, Structural, Water Resources

US Route 30/Canadian National Railroad Grade Separation

Lynwood, Illinois

  • Higher train volumes, significant increases in traffic congestion and safety concerns led IDOT to select V3 to perform both Phase I preliminary engineering and Phase II design engineering services for a proposed grade separation at US Route 30 and the Canadian National railroad (CNRR) tracks.

  • The project included an analysis of several centerline alternative alignments for US Route 30 as well as various roadway and railroad overpass and underpass grade separation alternatives.

  • The Phase I process included preparing a Group II categorical exclusion project report, intersection design study, bridge type study, location drainage study, pump station hydraulic report and traffic management plan. The preferred alternative detailed in the project report proposed a US Route 30 overpass (with track elevations maintained) and the roadway centerline shifted 64 feet to the east to facilitate construction of the new overpass and to accommodate a new frontage road system.

  • Key project challenges included conducting the Phase I process on an accelerated 18-month schedule to meet funding requirements, coordinating with the Canadian National and Norfolk Southern Railroads and coordinating with the Town of Dyer, Indiana and INDOT.

  • An extensive public involvement program was conducted following context sensitive solutions principles. This program included preparing a stakeholder involvement plan, community context audit report, two public meetings, a public hearing, three community advisory group meetings, six project study group meetings, newsletters and local government official briefings.

  • The project was funded by the state and the CNRR.

  • This project received a 2017 ACEC-IL Engineering Excellence Merit Award.