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At a glance:
I-80 MISSISSIPPI
RIVER BRIDGE
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Existing I-80 Mississippi River bridge opened in 1967
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One of three major interstate bridges connecting Illinois and Iowa in the Quad Cities
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Approximately six-mile project area extending from the I-88 interchange in Illinois to 35th Street Southwest in LeClaire, Iowa
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Phase I Preliminary Engineering and Environmental Studies concluded in late 2025 with a Selected Alternative
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Project advanced into Final Design phase
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Selected Alternative includes two new bridge structures, interchange and roadway improvements, and a multi-use path across the Mississippi River
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Final Design will refine the design and prepare the project for construction
I-80 Bridge Project Moves to Final Design
Public Meeting on Wednesday, October 14, 2026
The I-80 Mississippi River Bridge project is moving forward, and you are invited to learn more at an open house public meeting from 3-6 pm on Wednesday, October 14, 2026, at LeClaire City Hall, 325 Wisconsin St., LeClaire.
The meeting will offer an inside look at the Selected Alternative and what comes next as the Illinois and Iowa Departments of Transportation move into the next phase of Final Design. At the meeting, stakeholders can explore project displays, meet members of the project and land acquisition teams, and learn about the work required to prepare the project for construction.
The Planning phase of the project concluded in late 2025 after more than five years of planning, engineering, environmental review and community input. The Selected Alternative will replace the existing bridge with two new structures, one for each direction of travel, and improve approximately six miles of I-80 between the I-88 interchange in Illinois and 35th Street Southwest in LeClaire, Iowa.
During the Final Design phase, the project team will refine the bridge and roadway plans, multi-use path, drainage, lighting and traffic operations. The team will also coordinate utilities and permits, identify property needs, develop cost estimates and plan how traffic will be maintained during construction.
WHO
The Illinois Department of Transportation is conducting this study in conjunction with the Iowa Department of Transportation
WHAT
A transportation study conducted under the National Environmental Policy Act. Planning phase completed late 2025 with a Selected Alternative. Project has moved to Final Design phase.
when
Project moved to Final Design phase in late 2025, with construction expected in early 2028.
where
The study includes approximately six miles from the I-88/I-80 interchange in Illinois to 35th Street SW in
LeClaire, Iowa
why
The bridge does not meet current design standards, and recurring and costly maintenance is required