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MoDOT will construct a new diverging diamond interchange for I-435 and Route 210, which includes replacing the twin bridges on I-435 over Route 210 and widening  I-435 to provide three continuous lanes. Follow this project on Twitter or Facebook.

News and Notes:

Dateline: 3/1/18: Crews will close all northbound and southbound lanes of I-435 at Route 210 beginning at 10 p.m. Friday, March 2 through 5 a.m. Monday, March 5 for demolition of the now-closed flyover ramp. Traffic will be detoured to I-35 for both directions.

Dateline 2/26/18: Crews are set to resume work on the project. The biggest impact to date will be the permanent closure of the flyover ramp from northbound I-435 to westbound Route 210 (Exit 55). Crews will close the ramp at 9 a.m. Wednesday, Feb. 28. The closure is in preparation for demolition of the ramp which is set to happen the weekend of March 2. Motorists wishing to travel westbound will need to exit at Route 210 and I-435 and turn left at the temporary traffic signal.

Dateline 11/15:17 Crews have returned I-435 and Route 210 very close to its original configuration for the winter months. This project will resume construction in early spring or when temperatures allow.

Click Here to See a Detailed Map of Scheduled Construction Activities. When viewing the map, you can click on a specific route/roadway and updated information will be given on what is happening regarding construction.

To get a view of the project, click on the link: 2ueBG4m

Why is MoDOT doing this project?

The purpose of this project is to enhance capacity and safety of this important existing interchange to accommodate the current and future needs of citizens, visitors and businesses within the area. 

How will this project benefit me?   

The Route 210 and I-435 interchange currently serves nearly 100,000 drivers per day.  This project will enhance capacity of I-435 by providing three continuous through lanes in each direction throughout the interchange. 

Route 210 is an important freight corridor that serves multimodal freight hubs and was last summer from two lanes to four lanes from Eldon Road to MO 291.  The new interchange will be able to accommodate the increased truck and vehicle traffic of Route 210. 

This project will also remove the two uncommon high speed ramps to enhance driver expectancy and safety. Ramp reconstruction will enhance safety by providing increased storage and better turning movements.  This project also includes the alteration of access at Randolph Road which will result in fewer traffic signal challenges and will improve safety. 

What is the project timeline?   

Construction began in the fall of 2016.

2016- Construction of Great Midwest Drive and Randolph Road

2017- Construction of NB/SB I-435 Bridges

2018- Finish construction of Route 210 and Diverging Diamond  

How is this project funded?  

This project will use MoDOT funding through the Statewide Transportation Improvement Program, which is a combination of state and federal funding.

Submit a comment to -888-ASK-MODOT (275-6636) or by through our website.
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