Counties Impacted
St. Charles
St. Louis
Completed

About the Daniel Boone Bridge Project

The Daniel Boone Bridge carries Interstate 64 traffic across the Missouri River between St. Louis County and St. Charles County, Missouri.

In July 2012, the Missouri Highways and Transportation Commission selected the Walsh-Alberici joint venture team as the design-build contractor for the new I-64 Daniel Boone Bridge. Prior to the $125 million design-build project, the westbound Daniel Boone Bridge was nearly 80 years old and carried approximately 50,000 vehicles a day. This aging structure was not originally designed for interstate level traffic and needed to be replaced. In addition to a new bridge, the project included constructing a shared use path connecting Katy Trail State Park to Monarch Levee Trail and improving the Chesterfield Airport Road interchange.

The new bridge was constructed upstream of the existing eastbound bridge. Once completed, the existing eastbound bridge became the new westbound bridge, and eastbound traffic was shifted to the new bridge. This project helped improve mobility, capacity and safety in the corridor.

Timeline

July 2012

The Walsh-Alberici joint venture team, with designer Burns & McDonnell, was selected by the Missouri Highways and Transportation Commission as the design-build contractor for the new I-64 Daniel Boone Bridge on July 10, 2012. 

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2013

Construction of the new eastbound bridge, the Spirit of St. Louis Blvd bridge over I-64, and a new Chesterfield Airport Road Bridge and North Outer Road connection was underway.

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2014

The new Chesterfield Airport Road bridge and interchange opened.

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2015

Traffic was shifted to the new eastbound bridge by late spring 2015. Rehab work started on the 1980s bridge, with completion by the end of the year.

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2016

The 1935 westbound bridge was removed. 

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