I-74 Mississippi River Bridge

Project Details

ROLE
General Contractor

CONTRACT AMOUNT
$426 Million

OWNER
Iowa Department of Transportation

LOCATION
Bettendorf, IA - Moline, IL

ARCHITECT
Benesch
Modjeski and Masters

SIZE
1.25 Miles

COMPLETION
2022

Project Description

Part of a regional strategy for improving access across the Mississippi River in the Quad Cities, the I-74 Mississippi River Bridge project includes the replacement of the old I-74 over the Mississippi River. Lunda constructed two basket-handle true arches using a tower and stay system that is typically reserved for parallel arches to avoid obstructions to the busy navigational channel of the Mississippi River. The 800-foot basket handle arches are the longest basket handle true arches erected in the United States and one of very few erected in place. The bridge is more than twice as wide as the old bridge and includes a multi-use path on the bridge that will connect to paths in Bettendorf and Moline. The project also features roadway and aesthetic lighting on and underneath the bridge structures, and a scenic overlook with connections to added pedestrian and bike paths. The bridge is expected to carry 100,000 vehicles per day by the year 2035.

Awards

2023 Excellence in Concrete Construction, American Concrete Institute (ACI), Infrastructure category

2022 Structural Engineering Excellence Award, National Council of Structural Engineers Association, New Bridges or Transportation Structures category

2023 Lincoln Grand Conceptor Award, American Council of Engineering Companies, Illinois Chapter, (ACEC-IL)

2022 #1 Bridge, Roads & Bridges Magazine

2022 Prize Bridge Award, American Institute of Steel Construction & National Steel Bridge Alliance (AISC & NSBA), National Major Span category

2022 America’s Transportation Award, American Association of State Highway and Transportation Officials (AASHTO), Quality of Life/Community Development over $200M category

“The Iowa and Illinois Departments of Transportation are proud to work with all our wonderful partners who made this project such a success. We especially want to recognize the bridge structural steel team, including Lunda Construction Company...”

I-74 Mississippi River Bridge website

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