IDOT Plans Over $1 Billion in Quad Cities Infrastructure

The Illinois Department of Transportation is continuing a massive multiyear construction program in the Quad Cities, with 13 major transportation projects representing more than $1 billion in investment either planned or underway across the region.

Funded through the state's Rebuild Illinois capital program, the projects cover a broad range of heavy civil construction, including highway reconstruction and resurfacing, bridge replacement and rehabilitation, interchange reconstruction, intersection improvements and pavement repairs.

Construction Equipment Guide reports that five of the 13 major projects are scheduled for completion in 2026, while another is set to begin this year. Other projects are programmed for construction through the next decade, creating a substantial long-term pipeline of work for highway, bridge and infrastructure contractors.

I-80 Rock River to U.S. 6

Construction is underway on Interstate 80 between the Rock River and U.S. 6.

The project includes:

• Pavement patching
• Highway resurfacing
• Bridge repairs

Work began in spring 2025 and is expected to be completed this fall.

Traffic is being maintained in a head-to-head configuration while crews perform work on the eastbound lanes.

I-280 Airport Road to Henry County Line

Patching and resurfacing along I-280 between Airport Road and the Henry County line began in fall 2025.

The project involved improvements to both the eastbound and westbound lanes.

Construction was completed this summer.

Osco Road from U.S. 6 to Illinois 81

Crews began another resurfacing project this spring along Osco Road between U.S. 6 and Illinois 81.

The work includes pavement patching and resurfacing and is scheduled to be completed this fall.

Daily lane closures are being used while construction proceeds.

I-74 and Illinois 5 Interchange Reconstruction

One of the more substantial projects moving toward construction involves the I-74 and Illinois 5, also known as John Deere Road, interchange.

IDOT is planning a major interchange and roadway reconstruction project that will also include improvements to 38th Avenue and 27th Street.

The project is anticipated to be completed in fall 2028.

Traffic impacts and construction staging were still being determined.

The combination of interchange reconstruction and surrounding roadway improvements could generate opportunities for bridge, roadway, drainage, concrete, paving, traffic-control and utility contractors.

Illinois 84 Reconstruction

IDOT is planning reconstruction of Illinois 84 from the Rock River to just north of U.S. 6.

The project will also include intersection improvements at Cleveland Road.

Construction is currently programmed to begin in 2028.

The roadway reconstruction could involve extensive pavement replacement, grading, drainage, intersection work and other supporting infrastructure.

Centennial Bridge Replacement

One of the most significant long-range projects in the Quad Cities program is replacement of the Centennial Bridge.

The bridge carries U.S. 67 across the Mississippi River between Illinois and Iowa.

Replacement of the bridge is currently programmed to begin in 2031.

A project of this scale could require extensive structural, marine, foundation, steel, concrete and roadway construction, along with complex traffic staging and coordination between the two states.

I-80 Mississippi River Bridge Replacement

IDOT also plans replacement of the I-80 bridge across the Mississippi River.

Construction dates and traffic impacts have not yet been determined.

The future bridge replacement represents another major heavy civil construction opportunity within the Quad Cities transportation program.

Large river bridge projects can require specialized contractors for foundations, piers, structural steel, concrete decks, demolition, marine construction and roadway approaches.

U.S. 67, Illinois 84 and I-88 Interchange Reconstruction

Another major future project will involve reconstruction of the U.S. 67, Illinois 84 and I-88 interchanges.

Construction dates and traffic impacts have not yet been announced.

The work adds another significant interchange component to the region's long-range infrastructure pipeline.

Illinois 92 from 48th Street to Illinois 84

IDOT is planning reconstruction of Illinois 92 from 48th Street in Moline to Illinois 84 in East Moline.

The project will bring another major roadway reconstruction program to the Quad Cities.

Construction timing and traffic impacts have not yet been specified.

Illinois 92 from Illinois 84 to Illinois 5

A second Illinois 92 reconstruction project is planned in Silvis.

This section will extend from Illinois 84 to Illinois 5.

Together, the two Illinois 92 projects represent substantial future roadway reconstruction activity along the corridor.

27th Street Reconstruction

Reconstruction is also planned along 27th Street between Illinois 5 and 52nd Avenue.

The project adds another local roadway corridor to IDOT's broader Quad Cities construction program.

Construction dates and traffic impacts have not yet been announced.

27th Street Bridge Work

In addition to roadway reconstruction, major bridge work is planned along 27th Street.

IDOT plans to replace the 27th Street bridge over the Rock River.

The program also calls for rehabilitation of the 27th Street bridge over I-280.

These projects will create opportunities for contractors specializing in bridge demolition, structural rehabilitation, concrete, steel, foundations, bridge decks and related roadway work.

Two Additional Projects Completed This Spring

Two projects included in the Quad Cities program were completed earlier this year.

IDOT completed patching and resurfacing along Illinois 5 at 16th Street in Moline.

Crews also completed pavement patching along Avenue of the Cities between First Street in Moline and Archer Avenue in East Moline.

These completed projects are part of the five major projects IDOT expects to finish during 2026.

Construction Trades Involved

With more than $1 billion in transportation investment planned or underway, the Quad Cities program could create opportunities for a wide range of heavy civil contractors, subcontractors and construction suppliers.

Potential trades include:

• General highway contractors
• Roadway reconstruction contractors
• Bridge construction contractors
• Bridge rehabilitation contractors
• Bridge demolition contractors
• Excavation and earthwork contractors
• Grading contractors
• Asphalt paving contractors
• Asphalt suppliers
• Concrete contractors
• Structural concrete contractors
• Structural steel contractors
• Reinforcing steel contractors
• Bridge deck contractors
• Deep foundation and piling contractors
• Marine construction contractors
• Drainage and storm sewer contractors
• Underground utility contractors
• Culvert contractors
• Interchange construction contractors
• Aggregate and stone suppliers
• Curb and gutter contractors
• Guardrail and safety barrier contractors
• Pavement marking contractors
• Traffic signal contractors
• Highway lighting contractors
• Roadway signage contractors
• Traffic-control contractors
• Landscaping and site restoration contractors

The planned Mississippi River bridge replacements could be particularly significant for contractors with experience in major structural and marine construction.

Rebuild Illinois Creates Long-Term Construction Pipeline

The 13 Quad Cities projects are part of Rebuild Illinois, the $33.2 billion capital program approved in 2019 to improve transportation infrastructure across the state.

Through the program's seventh year, $25.6 billion in improvements have been funded statewide.

The work includes improvements covering 24,498 lane miles of highway, 959 bridges and 1,475 additional safety improvements.

For contractors and suppliers in western Illinois, the Quad Cities program is notable because the work extends well beyond projects currently under construction.

Near-term resurfacing and repair projects are being completed while major interchange and roadway reconstruction projects move forward. Additional reconstruction is programmed for 2028, and replacement of the Centennial Bridge is scheduled to begin in 2031.

Other major projects, including replacement of the I-80 Mississippi River bridge and reconstruction of the U.S. 67, Illinois 84 and I-88 interchanges, remain in the future pipeline with construction schedules still to be determined.

With more than $1 billion in projects planned or underway, the Quad Cities is positioned for years of highway, bridge and infrastructure construction under the Rebuild Illinois program.