The study limits are from State Line Road to Grandview Road in Jackson County. The study area includes the local service interchanges of State Line Road, Wornall Road, Holmes Road and 104th Street. The study area also includes the arterial roadway network north and south of the I-435 freeway corridor. The study builds on work previously performed by MoDOT and will culminate in a master plan for this section of I-435.
The purpose of this study is to evaluate what types of improvements are needed in this section of the I-435 corridor to provide a safe and efficient transportation corridor for all modes.
This report documents existing bridge plans and inspection reports by MoDOT. The site was visited on May 14, 2014 to develop an initial assessment of the condition of the bridges.
Upon review of the widening needed, it became apparent that an additional three-foot width would accommodate most of the complementary strategies including managed lanes, hard shoulder running and bus on shoulder. Any of the optional alternatives could be accommodated if the through lanes were narrowed to a minimum of 11 feet. Additionally, widening the base typical section three feet would provide for a normal left shoulder width of 10 feet, which would address a concern that FHWA has expressed concerning the median shoulder width where three or more lanes are present.
Other complementary strategies of bicycle/pedestrian improvements, ramp metering enhancements, roadside motorist assist and crash investigation sites, traffic signal coordination, alternative route improvements and other Intelligent Transportation System and Integrated Corridor Management solutions are also part of the preferred concept.
As part of construction on this project, MoDOT will impact the Blue River Greenway Trail for a short period of time. To keep bike and pedestrian traffic flowing, MoDOT is considering a defined detour along one of the lanes of 104th Street. We are currently accepting comments on this portion of the project. Click here to submit your comments or add your name to an e-mail list for updates on this project.