Union Pacific Railroad plans new bridge for I-490 project in Bensonville area

The Illinois Tollway Engineering, Planning & Development Oversight Committee convened on March 20, 2025, to discuss ongoing infrastructure projects, particularly focusing on the developments surrounding the O'Hare International Airport area and the I-490 project.

The meeting commenced with an overview of the ongoing construction efforts at the South Airfield, highlighting the significant progress made in building the airport perimeter road. Committee members reflected on the enthusiasm displayed by engineers during site visits, emphasizing the collaborative spirit driving these projects.

A key agenda item was the update on the railroad bridge construction in the Bensonville Intermodal area. The project involves two railroads, Union Pacific and Canadian Pacific, with the construction of a new railroad bridge and tracks to facilitate the I-490 project. The committee discussed modifications to the railroad bridge design at two locations to expedite construction. A rendering of the completed project was presented, showcasing the bridge's integration into the existing infrastructure.

The committee clarified that the new railroad bridge will be owned and maintained by Union Pacific Railroad, as it serves solely railroad purposes. This decision allows the Tollway Authority to proceed with the I-490 construction without jurisdictional complications.

Progress updates included the formation of piers for the I-490 bridge and the construction of a 2,500-foot retaining wall alongside the tracks. The committee noted the challenges posed by the 24/7 operations of the intermodal yard and the Union Pacific line, which necessitate careful coordination to ensure safety and efficiency.

Looking ahead, the committee outlined plans for continued mainline construction on the west side of the airport, including interchange work at I-90 and I-390. The anticipated Franklin Avenue interchange project, which has been a priority for Franklin Park and Bensonville, is set to move forward, alongside ongoing railroad work and the relocation of runway lighting systems at O'Hare.

The meeting concluded with a commitment to maintaining momentum on these critical infrastructure projects, underscoring the importance of collaboration among stakeholders to achieve timely completion.