A grade separation with the Union Pacific freight-line tracks at an east/west railroad crossing has been a discussion point in Des Plaines for quite some time. Below are the primary reasons why:

• Provides an unimpeded route between the east and west sides of the City (there are currently zero).
• Significantly reduces emergency response times for first responders.
• Increases safety with the elimination of a railroad crossing and potential accidents.
• Mitigates congestion and improves air quality.
• Increases overall transportation efficiency and creates a more seamless and reliable transportation network for the benefit of our community.

A feasibility study was conducted in 2009. Algonquin Road was selected for an overpass based on consideration of traffic patterns, safety concerns, avoiding right-of-way acquisition from residents, its central location within the City, and the overall impact on the community.

Building an underpass was considered but is not recommended from the project’s feasibility study. Primary reasons are the lack of support from Union Pacific railroad, the need for temporary tracks while the underpass bridge is constructed, larger construction easements, and the addition of pumped drainage facilities. Significant increases in project costs and duration would result.

Funding for the Algonquin Road Grade Separation Project will be a continuous effort requiring various stakeholders, including federal, state, and local government agencies. As of February 2024, $18 million has been secured for the project which is expected to cost approximately $35 million in total. Securing grant funding will be vital towards the project and allows minimal impact to the City’s budget. Funding availability and support for infrastructure is currently strong at the federal and state level which has not always been the case. The City hopes to capitalize on this opportunity.  

The project is currently in Phase I engineering which includes preliminary design, data collection and analysis, stakeholder coordination, and project funding assistance. Phase II primarily includes right-of-way acquisition and preparation of plans and specifications. Phase II is estimated to begin in 2025. Phase III is the construction phase and is estimated to begin sometime between 2028-2030. Construction for the project may last between 2-3 years. A detailed project schedule will be developed, and regular updates will be provided to the community to keep everyone informed about the progress.

• Multi-use Path on North Side of Algonquin Road.
• Fills Gap in sidewalk along south side of Algonquin Road.
• Landscaping features along retaining walls.
• Decorative form liners and/or murals on retaining walls.
• Decorative railings on bridge and retaining walls.
• Additional wayfinding signs.
• Implement traffic calming measures (signs, raised crosswalks, speed tables, etc.)

The Illinois State Toll Highway Authority (ISHTA) is expected to construct a grade separation in the future at Touhy Avenue as part of the Elgin O’Hare Western Access Project. However, this location is on the far south end of the City and does not provide a central location for first responders and the large majority of residents.