I-70 & 5th Street

Project Details

In early 2016, Millstone Weber (MW) was awarded this project with the Missouri Department of Transportation (MoDOT) to construct a new interchange at I-70 and Fairgrounds Road, convert the existing interchange at I-70 and 5th Street to a diverging diamond interchange, construct new ramps and outer roads, and widen I-70 to accommodate the changes. Prior to beginning construction in March 2016, MW proposed an alternate project phasing plan for the project to aide constructability and meet the stringent schedule demands. In doing so, MW combined several as-bid stages and accelerated the schedule, meeting all contract milestones well ahead of their original completion dates: the new bridge at I-70 and Fairgrounds Road was completed and opened to traffic within 120 days of original closure; the diverging diamond interchange and all associated ramps at I-70 and 5th Street were completed and opened to traffic prior to November 23, 2016; and all other ramps and roadways were completed and opened to traffic prior to April 22, 2017.