Boone County Route 740 – Stadium Boulevard

Project OverviewDescripción del proyecto

The intersection of Stadium Boulevard (Rte 740) and I-70 was a heavily congested interchange that handled the main traffic volume for Columbia’s largest commercial district. Emery Sapp & Sons was awarded the project to rehabilitate the interchange into a Diverging Diamond Interchange (DDI) as well as improve and widen the entire corridor for roughly a mile south through the business district. Moving south along Stadium, major storm sewer renovations were installed through a heavily laden utility corridor. An extra lane was added in each direction along Stadium from Broadway to I-70. Broadway, Ash, Worley, and Bernadette service street intersections, the DDI, and the Stadium corridor were upgraded to be ADA accessible throughout.

The DDI was completed and traffic was switched into the final configuration over a month ahead of schedule. The remaining section between the DDI and Broadway including side street improvements was opened to all lanes of traffic, more than five months ahead of schedule.

The project featured converting Columbia’s second busiest intersection from a standard diamond interchange into a Diverging Diamond Interchange, as well as new drainage, curb & gutter, street widening, and intersection improvements along Rte 740 (Stadium Blvd) from the north outer roads to 700′ south of Broadway. Key elements of the project included: grading, concrete paving, major storm sewer relocation, curb and gutter, business entrance rehabilitation, intersection widening, extensive ADA improvements, as well as all-new intersection signals and detection systems. The project was a combination bid of three separately designed projects lumped under a single contract. The project was funded through a joint collaboration between MoDOT, the City of Columbia, and a local Transportation Development District.